* [dpdk-dev] [PATCH v2 2/4] Amazon ENA communication layer
2016-02-05 18:20 [dpdk-dev] [PATCH v2 0/4] DPDK polling-mode driver for Amazon Elastic Network Adapters (ENA) Jan Medala
2016-02-05 18:20 ` [dpdk-dev] [PATCH v2 1/4] Amazon ENA PCI defines and documentation Jan Medala
@ 2016-02-05 18:20 ` Jan Medala
[not found] ` <CANw_3Zcttwpii02DUfxdtD0wdJJYsGeWB33x7NVx4wZRoh0g5g@mail.gmail.com>
2016-02-05 18:20 ` [dpdk-dev] [PATCH v2 3/4] Amazon ENA communication layer for DPDK platform Jan Medala
2016-02-05 18:20 ` [dpdk-dev] [PATCH v2 4/4] DPDK polling-mode driver for Amazon Elastic Network Adapters (ENA) Jan Medala
3 siblings, 1 reply; 11+ messages in thread
From: Jan Medala @ 2016-02-05 18:20 UTC (permalink / raw)
To: dev; +Cc: matua, Netanel Belgazal
Low level common abstraction for ENA device communication.
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: Jan Medala <jan@semihalf.com>
Signed-off-by: Jakub Palider <jpa@semihalf.com>
---
drivers/net/ena/base/ena_com.c | 2474 ++++++++++++++++++++
drivers/net/ena/base/ena_com.h | 764 ++++++
drivers/net/ena/base/ena_defs/ena_admin_defs.h | 1660 +++++++++++++
.../net/ena/base/ena_defs/ena_admin_defs_custom.h | 40 +
drivers/net/ena/base/ena_defs/ena_common_defs.h | 54 +
drivers/net/ena/base/ena_defs/ena_eth_io_defs.h | 1095 +++++++++
drivers/net/ena/base/ena_defs/ena_gen_info.h | 35 +
drivers/net/ena/base/ena_defs/ena_includes.h | 37 +
drivers/net/ena/base/ena_defs/ena_regs_defs.h | 326 +++
drivers/net/ena/base/ena_eth_com.c | 503 ++++
drivers/net/ena/base/ena_eth_com.h | 131 ++
drivers/net/ena/base/ena_plat.h | 51 +
12 files changed, 7170 insertions(+)
create mode 100644 drivers/net/ena/base/ena_com.c
create mode 100644 drivers/net/ena/base/ena_com.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_admin_defs.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_admin_defs_custom.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_common_defs.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_eth_io_defs.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_gen_info.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_includes.h
create mode 100644 drivers/net/ena/base/ena_defs/ena_regs_defs.h
create mode 100644 drivers/net/ena/base/ena_eth_com.c
create mode 100644 drivers/net/ena/base/ena_eth_com.h
create mode 100644 drivers/net/ena/base/ena_plat.h
diff --git a/drivers/net/ena/base/ena_com.c b/drivers/net/ena/base/ena_com.c
new file mode 100644
index 0000000..419bd51
--- /dev/null
+++ b/drivers/net/ena/base/ena_com.c
@@ -0,0 +1,2474 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "ena_com.h"
+
+/*****************************************************************************/
+/*****************************************************************************/
+
+/* Timeout in micro-sec */
+#define ADMIN_CMD_TIMEOUT_US (1000000)
+
+#define ENA_ASYNC_QUEUE_DEPTH 4
+#define ENA_ADMIN_QUEUE_DEPTH 32
+
+#define ENA_EXTENDED_STAT_GET_FUNCT(_funct_queue) (_funct_queue & 0xFFFF)
+#define ENA_EXTENDED_STAT_GET_QUEUE(_funct_queue) (_funct_queue >> 16)
+
+#define MIN_ENA_VER (((ENA_COMMON_SPEC_VERSION_MAJOR) << \
+ ENA_REGS_VERSION_MAJOR_VERSION_SHIFT) \
+ | (ENA_COMMON_SPEC_VERSION_MINOR))
+
+#define ENA_CTRL_MAJOR 0
+#define ENA_CTRL_MINOR 0
+#define ENA_CTRL_SUB_MINOR 1
+
+#define MIN_ENA_CTRL_VER \
+ (((ENA_CTRL_MAJOR) << \
+ (ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT)) | \
+ ((ENA_CTRL_MINOR) << \
+ (ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT)) | \
+ (ENA_CTRL_SUB_MINOR))
+
+#define ENA_DMA_ADDR_TO_UINT32_LOW(x) ((u32)((u64)(x)))
+#define ENA_DMA_ADDR_TO_UINT32_HIGH(x) ((u32)(((u64)(x)) >> 32))
+
+#define ENA_MMIO_READ_TIMEOUT 0xFFFFFFFF
+
+static int ena_alloc_cnt = 0;
+
+/*****************************************************************************/
+/*****************************************************************************/
+/*****************************************************************************/
+
+enum ena_cmd_status {
+ ENA_CMD_SUBMITTED,
+ ENA_CMD_COMPLETED,
+ /* Abort - canceled by the driver */
+ ENA_CMD_ABORTED,
+};
+
+struct ena_comp_ctx {
+ ena_wait_event_t wait_event;
+ struct ena_admin_acq_entry *user_cqe;
+ u32 comp_size;
+ enum ena_cmd_status status;
+ /* status from the device */
+ u8 comp_status;
+ u8 cmd_opcode;
+ bool occupied;
+};
+
+static inline int ena_com_mem_addr_set(struct ena_com_dev *ena_dev,
+ struct ena_common_mem_addr *ena_addr,
+ dma_addr_t addr)
+{
+ if ((addr & GENMASK_ULL(ena_dev->dma_addr_bits - 1, 0)) != addr) {
+ ena_trc_err("dma address has more bits that the device supports\n");
+ return ENA_COM_INVAL;
+ }
+
+ ena_addr->mem_addr_low = (u32)addr;
+ ena_addr->mem_addr_high =
+ ((addr & GENMASK_ULL(ena_dev->dma_addr_bits - 1, 32)) >> 32);
+
+ return 0;
+}
+
+static int ena_com_admin_init_sq(struct ena_com_admin_queue *queue)
+{
+ ENA_MEM_ALLOC_COHERENT(queue->q_dmadev,
+ ADMIN_SQ_SIZE(queue->q_depth),
+ queue->sq.entries,
+ queue->sq.dma_addr,
+ queue->sq.mem_handle);
+
+ if (!queue->sq.entries) {
+ ena_trc_err("memory allocation failed");
+ return ENA_COM_NO_MEM;
+ }
+
+ queue->sq.head = 0;
+ queue->sq.tail = 0;
+ queue->sq.phase = 1;
+
+ queue->sq.db_addr = NULL;
+
+ return 0;
+}
+
+static int ena_com_admin_init_cq(struct ena_com_admin_queue *queue)
+{
+ ENA_MEM_ALLOC_COHERENT(queue->q_dmadev,
+ ADMIN_CQ_SIZE(queue->q_depth),
+ queue->cq.entries,
+ queue->cq.dma_addr,
+ queue->cq.mem_handle);
+
+ if (!queue->cq.entries) {
+ ena_trc_err("memory allocation failed");
+ return ENA_COM_NO_MEM;
+ }
+
+ queue->cq.head = 0;
+ queue->cq.phase = 1;
+
+ return 0;
+}
+
+static int ena_com_admin_init_aenq(struct ena_com_dev *dev,
+ struct ena_aenq_handlers *aenq_handlers)
+{
+ u32 addr_low, addr_high, aenq_caps;
+
+ dev->aenq.q_depth = ENA_ASYNC_QUEUE_DEPTH;
+ ENA_MEM_ALLOC_COHERENT(dev->dmadev,
+ ADMIN_AENQ_SIZE(dev->aenq.q_depth),
+ dev->aenq.entries,
+ dev->aenq.dma_addr,
+ dev->aenq.mem_handle);
+
+ if (!dev->aenq.entries) {
+ ena_trc_err("memory allocation failed");
+ return ENA_COM_NO_MEM;
+ }
+
+ dev->aenq.head = dev->aenq.q_depth;
+ dev->aenq.phase = 1;
+
+ addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(dev->aenq.dma_addr);
+ addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(dev->aenq.dma_addr);
+
+ ENA_REG_WRITE32(addr_low, &dev->reg_bar->aenq_base_lo);
+ ENA_REG_WRITE32(addr_high, &dev->reg_bar->aenq_base_hi);
+
+ aenq_caps = 0;
+ aenq_caps |= dev->aenq.q_depth & ENA_REGS_AENQ_CAPS_AENQ_DEPTH_MASK;
+ aenq_caps |= (sizeof(struct ena_admin_aenq_entry) <<
+ ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_SHIFT) &
+ ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_MASK;
+ ENA_REG_WRITE32(aenq_caps, &dev->reg_bar->aenq_caps);
+
+ if (unlikely(!aenq_handlers))
+ ena_trc_err("aenq handlers pointer is NULL\n");
+
+ dev->aenq.aenq_handlers = aenq_handlers;
+
+ return 0;
+}
+
+static inline void comp_ctxt_release(struct ena_com_admin_queue *queue,
+ struct ena_comp_ctx *comp_ctx)
+{
+ comp_ctx->occupied = false;
+ ATOMIC32_DEC(&queue->outstanding_cmds);
+}
+
+static struct ena_comp_ctx *get_comp_ctxt(struct ena_com_admin_queue *queue,
+ u16 command_id, bool capture)
+{
+ ENA_ASSERT(command_id < queue->q_depth,
+ "command id is larger than the queue size. cmd_id: %u queue size %d\n",
+ command_id, queue->q_depth);
+
+ ENA_ASSERT(!(queue->comp_ctx[command_id].occupied && capture),
+ "Completion context is occupied");
+
+ if (capture) {
+ ATOMIC32_INC(&queue->outstanding_cmds);
+ queue->comp_ctx[command_id].occupied = true;
+ }
+
+ return &queue->comp_ctx[command_id];
+}
+
+static struct ena_comp_ctx *__ena_com_submit_admin_cmd(
+ struct ena_com_admin_queue *admin_queue,
+ struct ena_admin_aq_entry *cmd,
+ size_t cmd_size_in_bytes,
+ struct ena_admin_acq_entry *comp,
+ size_t comp_size_in_bytes)
+{
+ struct ena_comp_ctx *comp_ctx;
+ u16 tail_masked, cmd_id;
+ u16 queue_size_mask;
+ u16 cnt;
+
+ queue_size_mask = admin_queue->q_depth - 1;
+
+ tail_masked = admin_queue->sq.tail & queue_size_mask;
+
+ /* In case of queue FULL */
+ cnt = admin_queue->sq.tail - admin_queue->sq.head;
+ if (cnt >= admin_queue->q_depth) {
+ ena_trc_dbg("admin queue is FULL (tail %d head %d depth: %d)\n",
+ admin_queue->sq.tail,
+ admin_queue->sq.head,
+ admin_queue->q_depth);
+ admin_queue->stats.out_of_space++;
+ return ERR_PTR(ENA_COM_NO_SPACE);
+ }
+
+ cmd_id = admin_queue->curr_cmd_id;
+
+ cmd->aq_common_descriptor.flags |= admin_queue->sq.phase &
+ ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK;
+
+ cmd->aq_common_descriptor.command_id |= cmd_id &
+ ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK;
+
+ comp_ctx = get_comp_ctxt(admin_queue, cmd_id, true);
+
+ comp_ctx->status = ENA_CMD_SUBMITTED;
+ comp_ctx->comp_size = (u32)comp_size_in_bytes;
+ comp_ctx->user_cqe = comp;
+ comp_ctx->cmd_opcode = cmd->aq_common_descriptor.opcode;
+
+ ENA_WAIT_EVENT_CLEAR(comp_ctx->wait_event);
+
+ memcpy(&admin_queue->sq.entries[tail_masked], cmd, cmd_size_in_bytes);
+
+ admin_queue->curr_cmd_id = (admin_queue->curr_cmd_id + 1) &
+ queue_size_mask;
+
+ admin_queue->sq.tail++;
+ admin_queue->stats.submitted_cmd++;
+
+ if (unlikely((admin_queue->sq.tail & queue_size_mask) == 0))
+ admin_queue->sq.phase = !admin_queue->sq.phase;
+
+ ENA_REG_WRITE32(admin_queue->sq.tail, admin_queue->sq.db_addr);
+
+ return comp_ctx;
+}
+
+static inline int ena_com_init_comp_ctxt(struct ena_com_admin_queue *queue)
+{
+ size_t size = queue->q_depth * sizeof(struct ena_comp_ctx);
+ struct ena_comp_ctx *comp_ctx;
+ u16 i;
+
+ queue->comp_ctx = ENA_MEM_ALLOC(queue->q_dmadev, size);
+ if (unlikely(!queue->comp_ctx)) {
+ ena_trc_err("memory allocation failed");
+ return ENA_COM_NO_MEM;
+ }
+
+ for (i = 0; i < queue->q_depth; i++) {
+ comp_ctx = get_comp_ctxt(queue, i, false);
+ ENA_WAIT_EVENT_INIT(comp_ctx->wait_event);
+ }
+
+ return 0;
+}
+
+static struct ena_comp_ctx *ena_com_submit_admin_cmd(
+ struct ena_com_admin_queue *admin_queue,
+ struct ena_admin_aq_entry *cmd,
+ size_t cmd_size_in_bytes,
+ struct ena_admin_acq_entry *comp,
+ size_t comp_size_in_bytes)
+{
+ unsigned long flags;
+ struct ena_comp_ctx *comp_ctx;
+
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ if (unlikely(!admin_queue->running_state)) {
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+ return ERR_PTR(ENA_COM_NO_DEVICE);
+ }
+ comp_ctx = __ena_com_submit_admin_cmd(admin_queue, cmd,
+ cmd_size_in_bytes,
+ comp,
+ comp_size_in_bytes);
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+
+ return comp_ctx;
+}
+
+static int ena_com_init_io_sq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_sq *io_sq)
+{
+ size_t size;
+
+ memset(&io_sq->desc_addr, 0x0, sizeof(struct ena_com_io_desc_addr));
+
+ io_sq->desc_entry_size =
+ (io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX) ?
+ sizeof(struct ena_eth_io_tx_desc) :
+ sizeof(struct ena_eth_io_rx_desc);
+
+ size = io_sq->desc_entry_size * io_sq->q_depth;
+
+ if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
+ size,
+ io_sq->desc_addr.virt_addr,
+ io_sq->desc_addr.phys_addr,
+ io_sq->desc_addr.mem_handle);
+ else
+ io_sq->desc_addr.virt_addr =
+ ENA_MEM_ALLOC(ena_dev->dmadev, size);
+
+ if (!io_sq->desc_addr.virt_addr) {
+ ena_trc_err("memory allocation failed");
+ return ENA_COM_NO_MEM;
+ }
+
+ io_sq->tail = 0;
+ io_sq->next_to_comp = 0;
+ io_sq->phase = 1;
+
+ return 0;
+}
+
+static int ena_com_init_io_cq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_cq *io_cq)
+{
+ size_t size;
+
+ memset(&io_cq->cdesc_addr, 0x0, sizeof(struct ena_com_io_desc_addr));
+
+ /* Use the basic completion descriptor for Rx */
+ io_cq->cdesc_entry_size_in_bytes =
+ (io_cq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX) ?
+ sizeof(struct ena_eth_io_tx_cdesc) :
+ sizeof(struct ena_eth_io_rx_cdesc_base);
+
+ size = io_cq->cdesc_entry_size_in_bytes * io_cq->q_depth;
+
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
+ size,
+ io_cq->cdesc_addr.virt_addr,
+ io_cq->cdesc_addr.phys_addr,
+ io_cq->cdesc_addr.mem_handle);
+
+ if (!io_cq->cdesc_addr.virt_addr) {
+ ena_trc_err("memory allocation failed");
+ return ENA_COM_NO_MEM;
+ }
+
+ io_cq->phase = 1;
+ io_cq->head = 0;
+
+ return 0;
+}
+
+static void ena_com_handle_single_admin_completion(
+ struct ena_com_admin_queue *admin_queue,
+ struct ena_admin_acq_entry *cqe)
+{
+ struct ena_comp_ctx *comp_ctx;
+ u16 cmd_id;
+
+ cmd_id = cqe->acq_common_descriptor.command &
+ ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK;
+
+ comp_ctx = get_comp_ctxt(admin_queue, cmd_id, false);
+
+ comp_ctx->status = ENA_CMD_COMPLETED;
+ comp_ctx->comp_status = cqe->acq_common_descriptor.status;
+
+ if (comp_ctx->user_cqe)
+ memcpy(comp_ctx->user_cqe, (void *)cqe, comp_ctx->comp_size);
+
+ if (!admin_queue->polling)
+ ENA_WAIT_EVENT_SIGNAL(comp_ctx->wait_event);
+}
+
+static void ena_com_handle_admin_completion(
+ struct ena_com_admin_queue *admin_queue)
+{
+ struct ena_admin_acq_entry *cqe = NULL;
+ u16 comp_num = 0;
+ u16 head_masked;
+ u8 phase;
+
+ head_masked = admin_queue->cq.head & (admin_queue->q_depth - 1);
+ phase = admin_queue->cq.phase;
+
+ cqe = &admin_queue->cq.entries[head_masked];
+
+ /* Go over all the completions */
+ while ((cqe->acq_common_descriptor.flags &
+ ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK) == phase) {
+ /* Do not read the rest of the completion entry before the
+ * phase bit was validated */
+ rmb();
+ ena_com_handle_single_admin_completion(admin_queue, cqe);
+
+ head_masked++;
+ comp_num++;
+ if (unlikely(head_masked == admin_queue->q_depth)) {
+ head_masked = 0;
+ phase = !phase;
+ }
+
+ cqe = &admin_queue->cq.entries[head_masked];
+ }
+
+ admin_queue->cq.head += comp_num;
+ admin_queue->cq.phase = phase;
+ admin_queue->sq.head += comp_num;
+ admin_queue->stats.completed_cmd += comp_num;
+}
+
+static int ena_com_comp_status_to_errno(u8 comp_status)
+{
+ if (unlikely(comp_status != 0))
+ ena_trc_err("admin command failed[%u]\n", comp_status);
+
+ if (unlikely(comp_status > ENA_ADMIN_UNKNOWN_ERROR))
+ return ENA_COM_INVAL;
+
+ switch (comp_status) {
+ case ENA_ADMIN_SUCCESS:
+ return 0;
+ case ENA_ADMIN_RESOURCE_ALLOCATION_FAILURE:
+ return ENA_COM_NO_MEM;
+ case ENA_ADMIN_UNSUPPORTED_OPCODE:
+ return ENA_COM_PERMISSION;
+ case ENA_ADMIN_BAD_OPCODE:
+ case ENA_ADMIN_MALFORMED_REQUEST:
+ case ENA_ADMIN_ILLEGAL_PARAMETER:
+ case ENA_ADMIN_UNKNOWN_ERROR:
+ return ENA_COM_INVAL;
+ }
+
+ return 0;
+}
+
+static int ena_com_wait_and_process_admin_cq_polling(
+ struct ena_comp_ctx *comp_ctx,
+ struct ena_com_admin_queue *admin_queue)
+{
+ unsigned long flags;
+ u64 timeout;
+ u64 syst;
+ int ret;
+ timeout = ENA_GET_SYSTEM_USECS() + ADMIN_CMD_TIMEOUT_US;
+
+ while (comp_ctx->status == ENA_CMD_SUBMITTED) {
+ if ((syst = ENA_GET_SYSTEM_USECS()) > timeout) {
+ ena_trc_err("Wait for completion (polling) timeout\n");
+ /* ENA didn't have any completion */
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ admin_queue->stats.no_completion++;
+ admin_queue->running_state = false;
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+
+ ret = ENA_COM_TIMER_EXPIRED;
+ goto err;
+ }
+
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ ena_com_handle_admin_completion(admin_queue);
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+ }
+
+ if (unlikely(comp_ctx->status == ENA_CMD_ABORTED)) {
+ ena_trc_err("Command was aborted\n");
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ admin_queue->stats.aborted_cmd++;
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+ ret = ENA_COM_NO_DEVICE;
+ goto err;
+ }
+
+ ENA_ASSERT(comp_ctx->status == ENA_CMD_COMPLETED,
+ "Invalid comp status %d\n", comp_ctx->status);
+
+ ret = ena_com_comp_status_to_errno(comp_ctx->comp_status);
+err:
+ comp_ctxt_release(admin_queue, comp_ctx);
+ return ret;
+}
+
+static int ena_com_wait_and_process_admin_cq_interrupts(
+ struct ena_comp_ctx *comp_ctx,
+ struct ena_com_admin_queue *admin_queue)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ ENA_WAIT_EVENT_WAIT(comp_ctx->wait_event,
+ ADMIN_CMD_TIMEOUT_US);
+
+ /* In case the command wasn't completed find out the root cause.
+ * There might be 2 kinds of errors
+ * 1) No completion (timeout reached)
+ * 2) There is completion but the device didn't get any msi-x interrupt.
+ */
+ if (unlikely(comp_ctx->status == ENA_CMD_SUBMITTED)) {
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ ena_com_handle_admin_completion(admin_queue);
+ admin_queue->stats.no_completion++;
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+
+ if (comp_ctx->status == ENA_CMD_COMPLETED) {
+ ena_trc_err("The ena device have completion but the driver didn't receive any MSI-X interrupt (cmd %d)\n",
+ comp_ctx->cmd_opcode);
+ } else {
+ ena_trc_err("The ena device doesn't send any completion for the admin cmd %d status %d\n",
+ comp_ctx->cmd_opcode, comp_ctx->status);
+ }
+
+ admin_queue->running_state = false;
+ ret = ENA_COM_TIMER_EXPIRED;
+ goto err;
+ }
+
+ ret = ena_com_comp_status_to_errno(comp_ctx->comp_status);
+err:
+ comp_ctxt_release(admin_queue, comp_ctx);
+ return ret;
+}
+
+/* This method read the hardware device register through posting writes
+ * and waiting for response
+ * On timeout the function will return ENA_MMIO_READ_TIMEOUT
+ */
+static u32 ena_com_reg_bar_read32(struct ena_com_dev *ena_dev, u16 offset)
+{
+ struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read;
+ volatile struct ena_admin_ena_mmio_req_read_less_resp *read_resp =
+ mmio_read->read_resp;
+ u32 mmio_read_reg, ret;
+ unsigned long flags;
+ int i;
+
+ if (unlikely(offset > sizeof(struct ena_regs_ena_registers))) {
+ ena_trc_err("trying to read reg bar with invalid offset %x\n",
+ offset);
+ /* this isn't really a timeout, but a programmer error */
+ return ENA_MMIO_READ_TIMEOUT;
+ }
+
+ ENA_MIGHT_SLEEP();
+
+ ENA_SPINLOCK_LOCK(mmio_read->lock, flags);
+ mmio_read->seq_num++;
+
+ read_resp->req_id = mmio_read->seq_num + 0xDEAD;
+ mmio_read_reg = (offset << ENA_REGS_MMIO_REG_READ_REG_OFF_SHIFT) &
+ ENA_REGS_MMIO_REG_READ_REG_OFF_MASK;
+ mmio_read_reg |= mmio_read->seq_num &
+ ENA_REGS_MMIO_REG_READ_REQ_ID_MASK;
+
+ /* make sure read_resp->req_id get updated before the hw can write
+ * there
+ */
+ wmb();
+
+ ENA_REG_WRITE32(mmio_read_reg, &ena_dev->reg_bar->mmio_reg_read);
+
+ for (i = 0; i < ENA_REG_READ_TIMEOUT; i++) {
+ if (read_resp->req_id == mmio_read->seq_num)
+ break;
+
+ ENA_UDELAY(1);
+ }
+
+ if (unlikely(i == ENA_REG_READ_TIMEOUT)) {
+ ena_trc_err("reading reg failed for timeout. expected: req id[%hu] offset[%hu] actual: req id[%hu] offset[%hu]\n",
+ mmio_read->seq_num,
+ offset,
+ read_resp->req_id,
+ read_resp->reg_off);
+ ret = ENA_MMIO_READ_TIMEOUT;
+ goto err;
+ }
+
+ ENA_ASSERT(read_resp->reg_off == offset,
+ "Invalid MMIO read return value");
+
+ ret = read_resp->reg_val;
+err:
+ ENA_SPINLOCK_UNLOCK(mmio_read->lock, flags);
+
+ return ret;
+}
+
+/* There are two types to wait for completion.
+ * Polling mode - wait until the completion is available.
+ * Async mode - wait on wait queue until the completion is ready
+ * (or the timeout expired).
+ * It is expected that the IRQ called ena_com_handle_admin_completion
+ * to mark the completions.
+ */
+static int ena_com_wait_and_process_admin_cq(
+ struct ena_comp_ctx *comp_ctx,
+ struct ena_com_admin_queue *admin_queue)
+{
+ if (admin_queue->polling)
+ return ena_com_wait_and_process_admin_cq_polling(comp_ctx,
+ admin_queue);
+
+ return ena_com_wait_and_process_admin_cq_interrupts(comp_ctx,
+ admin_queue);
+}
+
+static int ena_com_destroy_io_sq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_sq *io_sq)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_admin_aq_destroy_sq_cmd destroy_cmd;
+ struct ena_admin_acq_destroy_sq_resp_desc destroy_resp;
+ u8 direction;
+ int ret;
+
+ memset(&destroy_cmd, 0x0, sizeof(struct ena_admin_aq_destroy_sq_cmd));
+
+ if (io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX)
+ direction = ENA_ADMIN_SQ_DIRECTION_TX;
+ else
+ direction = ENA_ADMIN_SQ_DIRECTION_RX;
+
+ destroy_cmd.sq.sq_identity |= (direction <<
+ ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT) &
+ ENA_ADMIN_SQ_SQ_DIRECTION_MASK;
+
+ destroy_cmd.sq.sq_idx = io_sq->idx;
+ destroy_cmd.aq_common_descriptor.opcode = ENA_ADMIN_DESTROY_SQ;
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&destroy_cmd,
+ sizeof(destroy_cmd),
+ (struct ena_admin_acq_entry *)&destroy_resp,
+ sizeof(destroy_resp));
+
+ if (unlikely(ret))
+ ena_trc_err("failed to destroy io sq error: %d\n", ret);
+
+ return ret;
+}
+
+static void ena_com_io_queue_free(struct ena_com_dev *ena_dev,
+ struct ena_com_io_sq *io_sq,
+ struct ena_com_io_cq *io_cq)
+{
+ size_t size;
+
+ if (io_cq->cdesc_addr.virt_addr) {
+ size = io_cq->cdesc_entry_size_in_bytes * io_cq->q_depth;
+
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ size,
+ io_cq->cdesc_addr.virt_addr,
+ io_cq->cdesc_addr.phys_addr,
+ io_cq->cdesc_addr.mem_handle);
+
+ io_cq->cdesc_addr.virt_addr = NULL;
+ }
+
+ if (io_sq->desc_addr.virt_addr) {
+ size = io_sq->desc_entry_size * io_sq->q_depth;
+
+ if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ size,
+ io_sq->desc_addr.virt_addr,
+ io_sq->desc_addr.phys_addr,
+ io_sq->desc_addr.mem_handle);
+ else
+ ENA_MEM_FREE(ena_dev->dmadev, io_sq->desc_addr.virt_addr);
+
+ io_sq->desc_addr.virt_addr = NULL;
+ }
+}
+
+static int wait_for_reset_state(struct ena_com_dev *ena_dev,
+ u32 timeout, u16 exp_state)
+{
+ u32 val, i;
+
+ for (i = 0; i < timeout; i++) {
+ val = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF);
+
+ if (unlikely(val == ENA_MMIO_READ_TIMEOUT)) {
+ ena_trc_err("Reg read timeout occured\n");
+ return ENA_COM_TIMER_EXPIRED;
+ }
+
+ if ((val & ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK) ==
+ exp_state)
+ return 0;
+
+ /* The resolution of the timeout is 100ms */
+ ENA_MSLEEP(100);
+ }
+
+ return ENA_COM_TIMER_EXPIRED;
+}
+
+static bool ena_com_check_supported_feature_id(struct ena_com_dev *ena_dev,
+ enum ena_admin_aq_feature_id feature_id)
+{
+ u32 feature_mask = 1 << feature_id;
+
+ /* Device attributes is always supported */
+ if ((feature_id != ENA_ADMIN_DEVICE_ATTRIBUTES) &&
+ !(ena_dev->supported_features & feature_mask))
+ return false;
+
+ return true;
+}
+
+static int ena_com_get_feature_ex(struct ena_com_dev *ena_dev,
+ struct ena_admin_get_feat_resp *get_resp,
+ enum ena_admin_aq_feature_id feature_id,
+ dma_addr_t control_buf_dma_addr,
+ u32 control_buff_size)
+{
+ struct ena_com_admin_queue *admin_queue;
+ struct ena_admin_get_feat_cmd get_cmd;
+ int ret;
+
+ if (!ena_dev) {
+ ena_trc_err("%s : ena_dev is NULL\n", __func__);
+ return ENA_COM_NO_DEVICE;
+ }
+
+ if (!ena_com_check_supported_feature_id(ena_dev, feature_id)) {
+ ena_trc_err("Feature %d isn't supported\n", feature_id);
+ return ENA_COM_PERMISSION;
+ }
+
+ memset(&get_cmd, 0x0, sizeof(get_cmd));
+ admin_queue = &ena_dev->admin_queue;
+
+ get_cmd.aq_common_descriptor.opcode = ENA_ADMIN_GET_FEATURE;
+
+ if (control_buff_size)
+ get_cmd.aq_common_descriptor.flags =
+ ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;
+ else
+ get_cmd.aq_common_descriptor.flags = 0;
+
+ ret = ena_com_mem_addr_set(ena_dev,
+ &get_cmd.control_buffer.address,
+ control_buf_dma_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+
+ get_cmd.control_buffer.length = control_buff_size;
+
+ get_cmd.feat_common.feature_id = feature_id;
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)
+ &get_cmd,
+ sizeof(get_cmd),
+ (struct ena_admin_acq_entry *)
+ get_resp,
+ sizeof(*get_resp));
+
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to submit get_feature command %d error: %d\n",
+ feature_id, ret);
+ }
+
+ return ret;
+}
+
+static int ena_com_get_feature(struct ena_com_dev *ena_dev,
+ struct ena_admin_get_feat_resp *get_resp,
+ enum ena_admin_aq_feature_id feature_id)
+{
+ return ena_com_get_feature_ex(ena_dev,
+ get_resp,
+ feature_id,
+ 0,
+ 0);
+}
+
+static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
+ sizeof(*rss->hash_key),
+ rss->hash_key,
+ rss->hash_key_dma_addr,
+ rss->hash_key_mem_handle);
+
+ if (unlikely(!rss->hash_key))
+ return ENA_COM_NO_MEM;
+
+ return 0;
+}
+
+static int ena_com_hash_key_destroy(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+
+ if (rss->hash_key)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ sizeof(*rss->hash_key),
+ rss->hash_key,
+ rss->hash_key_dma_addr,
+ rss->hash_key_mem_handle);
+ return 0;
+}
+
+static int ena_com_hash_ctrl_init(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
+ sizeof(*rss->hash_ctrl),
+ rss->hash_ctrl,
+ rss->hash_ctrl_dma_addr,
+ rss->hash_ctrl_mem_handle);
+
+ return 0;
+}
+
+static int ena_com_hash_ctrl_destroy(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+
+ if (rss->hash_ctrl)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ sizeof(*rss->hash_ctrl),
+ rss->hash_ctrl,
+ rss->hash_ctrl_dma_addr,
+ rss->hash_ctrl_mem_handle);
+
+ return 0;
+}
+
+static int ena_com_indirect_table_allocate(struct ena_com_dev *ena_dev,
+ u16 log_size)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_get_feat_resp get_resp;
+ size_t tbl_size;
+ int ret;
+
+ ret = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG);
+ if (unlikely(ret))
+ return ret;
+
+ if ((get_resp.u.ind_table.min_size > log_size) ||
+ (get_resp.u.ind_table.max_size < log_size)) {
+ ena_trc_err("indirect table size doesn't fit. requested size: %d while min is:%d and max %d\n",
+ 1 << log_size,
+ 1 << get_resp.u.ind_table.min_size,
+ 1 << get_resp.u.ind_table.max_size);
+ return ENA_COM_INVAL;
+ }
+
+ tbl_size = (1 << log_size) *
+ sizeof(struct ena_admin_rss_ind_table_entry);
+
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
+ tbl_size,
+ rss->rss_ind_tbl,
+ rss->rss_ind_tbl_dma_addr,
+ rss->rss_ind_tbl_mem_handle);
+ if (unlikely(!rss->rss_ind_tbl))
+ goto mem_err1;
+
+ tbl_size = (1 << log_size) * sizeof(u16);
+ rss->host_rss_ind_tbl =
+ ENA_MEM_ALLOC(ena_dev->dmadev, tbl_size);
+ if (unlikely(!rss->host_rss_ind_tbl))
+ goto mem_err2;
+
+ rss->tbl_log_size = log_size;
+
+ return 0;
+
+mem_err2:
+ tbl_size = (1 << log_size) *
+ sizeof(struct ena_admin_rss_ind_table_entry);
+
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ tbl_size,
+ rss->rss_ind_tbl,
+ rss->rss_ind_tbl_dma_addr,
+ rss->rss_ind_tbl_mem_handle);
+mem_err1:
+ rss->tbl_log_size = 0;
+ return ENA_COM_NO_MEM;
+}
+
+static int ena_com_indirect_table_destroy(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ size_t tbl_size = (1 << rss->tbl_log_size) *
+ sizeof(struct ena_admin_rss_ind_table_entry);
+
+ if (rss->rss_ind_tbl)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ tbl_size,
+ rss->rss_ind_tbl,
+ rss->rss_ind_tbl_dma_addr,
+ rss->rss_ind_tbl_mem_handle);
+
+ if (rss->host_rss_ind_tbl)
+ ENA_MEM_FREE(ena_dev->dmadev, rss->host_rss_ind_tbl);
+
+ return 0;
+}
+
+static int ena_com_create_io_sq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_sq *io_sq, u16 cq_idx)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_admin_aq_create_sq_cmd create_cmd;
+ struct ena_admin_acq_create_sq_resp_desc cmd_completion;
+ u8 direction;
+ int ret;
+
+ memset(&create_cmd, 0x0, sizeof(struct ena_admin_aq_create_sq_cmd));
+
+ create_cmd.aq_common_descriptor.opcode = ENA_ADMIN_CREATE_SQ;
+
+ if (io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX)
+ direction = ENA_ADMIN_SQ_DIRECTION_TX;
+ else
+ direction = ENA_ADMIN_SQ_DIRECTION_RX;
+
+ create_cmd.sq_identity |= (direction <<
+ ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT) &
+ ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK;
+
+ create_cmd.sq_caps_2 |= io_sq->mem_queue_type &
+ ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK;
+
+ create_cmd.sq_caps_2 |= (ENA_ADMIN_COMPLETION_POLICY_DESC <<
+ ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT) &
+ ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK;
+
+ create_cmd.sq_caps_3 |=
+ ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK;
+
+ create_cmd.cq_idx = cq_idx;
+ create_cmd.sq_depth = io_sq->q_depth;
+
+ if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST) {
+ ret = ena_com_mem_addr_set(ena_dev,
+ &create_cmd.sq_ba,
+ io_sq->desc_addr.phys_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+ }
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&create_cmd,
+ sizeof(create_cmd),
+ (struct ena_admin_acq_entry *)&cmd_completion,
+ sizeof(cmd_completion));
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to create IO SQ. error: %d\n", ret);
+ return ret;
+ }
+
+ io_sq->idx = cmd_completion.sq_idx;
+
+ io_sq->db_addr = (u32 __iomem *)((uintptr_t)ena_dev->reg_bar +
+ (uintptr_t)cmd_completion.sq_doorbell_offset);
+
+ if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
+ io_sq->header_addr = (u8 __iomem *)((uintptr_t)ena_dev->mem_bar
+ + cmd_completion.llq_headers_offset);
+
+ io_sq->desc_addr.pbuf_dev_addr =
+ (u8 __iomem *)((uintptr_t)ena_dev->mem_bar +
+ cmd_completion.llq_descriptors_offset);
+ }
+
+ ena_trc_dbg("created sq[%u], depth[%u]\n", io_sq->idx, io_sq->q_depth);
+
+ return ret;
+}
+
+static int ena_com_ind_tbl_convert_to_device(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_com_io_sq *io_sq;
+ u16 qid;
+ int i;
+
+ for (i = 0; i < 1 << rss->tbl_log_size; i++) {
+ qid = rss->host_rss_ind_tbl[i];
+ if (qid >= ENA_TOTAL_NUM_QUEUES)
+ return ENA_COM_INVAL;
+
+ io_sq = &ena_dev->io_sq_queues[qid];
+
+ if (io_sq->direction != ENA_COM_IO_QUEUE_DIRECTION_RX)
+ return ENA_COM_INVAL;
+
+ rss->rss_ind_tbl[i].cq_idx = io_sq->idx;
+ }
+
+ return 0;
+}
+
+static int ena_com_ind_tbl_convert_from_device(struct ena_com_dev *ena_dev)
+{
+ u16 dev_idx_to_host_tbl[ENA_TOTAL_NUM_QUEUES] = { -1 };
+ struct ena_rss *rss = &ena_dev->rss;
+ u16 idx;
+ unsigned int i;
+
+ for (i = 0; i < ENA_TOTAL_NUM_QUEUES; i++)
+ dev_idx_to_host_tbl[ena_dev->io_sq_queues[i].idx] = i;
+
+ for (i = 0; i < 1U << rss->tbl_log_size; i++) {
+ idx = rss->rss_ind_tbl[i].cq_idx;
+ if (idx > ENA_TOTAL_NUM_QUEUES)
+ return ENA_COM_INVAL;
+
+ if (dev_idx_to_host_tbl[idx] > ENA_TOTAL_NUM_QUEUES)
+ return ENA_COM_INVAL;
+
+ rss->host_rss_ind_tbl[i] = dev_idx_to_host_tbl[idx];
+ }
+
+ return 0;
+}
+
+/*****************************************************************************/
+/******************************* API ******************************/
+/*****************************************************************************/
+
+int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue,
+ struct ena_admin_aq_entry *cmd,
+ size_t cmd_size,
+ struct ena_admin_acq_entry *comp,
+ size_t comp_size)
+{
+ struct ena_comp_ctx *comp_ctx;
+ int ret = 0;
+
+ comp_ctx = ena_com_submit_admin_cmd(admin_queue, cmd, cmd_size,
+ comp, comp_size);
+ if (unlikely(IS_ERR(comp_ctx))) {
+ ena_trc_err("Failed to submit command [%ld]\n",
+ PTR_ERR(comp_ctx));
+ return PTR_ERR(comp_ctx);
+ }
+
+ ret = ena_com_wait_and_process_admin_cq(comp_ctx, admin_queue);
+ if (unlikely(ret))
+ ena_trc_err("Failed to process command. ret = %d\n", ret);
+
+ return ret;
+}
+
+int ena_com_create_io_cq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_cq *io_cq)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_admin_aq_create_cq_cmd create_cmd;
+ struct ena_admin_acq_create_cq_resp_desc cmd_completion;
+ int ret;
+
+ memset(&create_cmd, 0x0, sizeof(struct ena_admin_aq_create_cq_cmd));
+
+ create_cmd.aq_common_descriptor.opcode = ENA_ADMIN_CREATE_CQ;
+
+ create_cmd.cq_caps_2 |= (io_cq->cdesc_entry_size_in_bytes / 4) &
+ ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK;
+ create_cmd.cq_caps_1 |=
+ ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK;
+
+ create_cmd.msix_vector = io_cq->msix_vector;
+ create_cmd.cq_depth = io_cq->q_depth;
+
+ ret = ena_com_mem_addr_set(ena_dev,
+ &create_cmd.cq_ba,
+ io_cq->cdesc_addr.phys_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&create_cmd,
+ sizeof(create_cmd),
+ (struct ena_admin_acq_entry *)&cmd_completion,
+ sizeof(cmd_completion));
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to create IO CQ. error: %d\n", ret);
+ return ret;
+ }
+
+ io_cq->idx = cmd_completion.cq_idx;
+ io_cq->db_addr = (u32 __iomem *)((uintptr_t)ena_dev->reg_bar +
+ cmd_completion.cq_doorbell_offset);
+
+ if (io_cq->q_depth != cmd_completion.cq_actual_depth) {
+ ena_trc_err("completion actual queue size (%d) is differ from requested size (%d)\n",
+ cmd_completion.cq_actual_depth, io_cq->q_depth);
+ ena_com_destroy_io_cq(ena_dev, io_cq);
+ return ENA_COM_NO_SPACE;
+ }
+
+ io_cq->unmask_reg = (u32 __iomem *)((uintptr_t)ena_dev->reg_bar +
+ cmd_completion.cq_interrupt_unmask_register);
+ io_cq->unmask_val = cmd_completion.cq_interrupt_unmask_value;
+
+ ena_trc_dbg("created cq[%u], depth[%u]\n", io_cq->idx, io_cq->q_depth);
+
+ return ret;
+}
+
+int ena_com_get_io_handlers(struct ena_com_dev *ena_dev, u16 qid,
+ struct ena_com_io_sq **io_sq,
+ struct ena_com_io_cq **io_cq)
+{
+ if (qid >= ENA_TOTAL_NUM_QUEUES) {
+ ena_trc_err("Invalid queue number %d but the max is %d\n",
+ qid, ENA_TOTAL_NUM_QUEUES);
+ return ENA_COM_INVAL;
+ }
+
+ *io_sq = &ena_dev->io_sq_queues[qid];
+ *io_cq = &ena_dev->io_cq_queues[qid];
+
+ return 0;
+}
+
+void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_comp_ctx *comp_ctx;
+ u16 i;
+
+ if (!admin_queue->comp_ctx)
+ return;
+
+ for (i = 0; i < admin_queue->q_depth; i++) {
+ comp_ctx = get_comp_ctxt(admin_queue, i, false);
+ comp_ctx->status = ENA_CMD_ABORTED;
+
+ ENA_WAIT_EVENT_SIGNAL(comp_ctx->wait_event);
+ }
+}
+
+void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ unsigned long flags;
+
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ while (ATOMIC32_READ(&admin_queue->outstanding_cmds) != 0) {
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+ ENA_MSLEEP(20);
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ }
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+}
+
+int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_cq *io_cq)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_admin_aq_destroy_cq_cmd destroy_cmd;
+ struct ena_admin_acq_destroy_cq_resp_desc destroy_resp;
+ int ret;
+
+ memset(&destroy_cmd, 0x0, sizeof(struct ena_admin_aq_destroy_sq_cmd));
+
+ destroy_cmd.cq_idx = io_cq->idx;
+ destroy_cmd.aq_common_descriptor.opcode = ENA_ADMIN_DESTROY_CQ;
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&destroy_cmd,
+ sizeof(destroy_cmd),
+ (struct ena_admin_acq_entry *)&destroy_resp,
+ sizeof(destroy_resp));
+
+ if (unlikely(ret))
+ ena_trc_err("Failed to destroy IO CQ. error: %d\n", ret);
+
+ return ret;
+}
+
+bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev)
+{
+ return ena_dev->admin_queue.running_state;
+}
+
+void ena_com_set_admin_running_state(struct ena_com_dev *ena_dev, bool state)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ unsigned long flags;
+
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ ena_dev->admin_queue.running_state = state;
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+}
+
+void ena_com_admin_aenq_enable(struct ena_com_dev *ena_dev)
+{
+ ENA_ASSERT(ena_dev->aenq.head == ena_dev->aenq.q_depth,
+ "Invliad AENQ state\n");
+
+ /* Init head_db to mark that all entries in the queue
+ * are initially available
+ */
+ ENA_REG_WRITE32(ena_dev->aenq.q_depth, &ena_dev->reg_bar->aenq_head_db);
+}
+
+int ena_com_set_aenq_config(struct ena_com_dev *ena_dev, u32 groups_flag)
+{
+ struct ena_com_admin_queue *admin_queue;
+ struct ena_admin_set_feat_cmd cmd;
+ struct ena_admin_set_feat_resp resp;
+ struct ena_admin_get_feat_resp get_resp;
+ int ret = 0;
+
+ if (unlikely(!ena_dev)) {
+ ena_trc_err("%s : ena_dev is NULL\n", __func__);
+ return ENA_COM_NO_DEVICE;
+ }
+
+ ret = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_AENQ_CONFIG);
+ if (ret) {
+ ena_trc_info("Can't get aenq configuration\n");
+ return ret;
+ }
+
+ if ((get_resp.u.aenq.supported_groups & groups_flag) != groups_flag) {
+ ena_trc_info("Trying to set unsupported aenq events. supported flag: %x asked flag: %x\n",
+ get_resp.u.aenq.supported_groups,
+ groups_flag);
+ return ENA_COM_PERMISSION;
+ }
+
+ memset(&cmd, 0x0, sizeof(cmd));
+ admin_queue = &ena_dev->admin_queue;
+
+ cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
+ cmd.aq_common_descriptor.flags = 0;
+ cmd.feat_common.feature_id = ENA_ADMIN_AENQ_CONFIG;
+ cmd.u.aenq.enabled_groups = groups_flag;
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&cmd,
+ sizeof(cmd),
+ (struct ena_admin_acq_entry *)&resp,
+ sizeof(resp));
+
+ if (unlikely(ret))
+ ena_trc_err("Failed to config AENQ ret: %d\n", ret);
+
+ return ret;
+}
+
+int ena_com_get_dma_width(struct ena_com_dev *ena_dev)
+{
+ u32 caps = ena_com_reg_bar_read32(ena_dev, ENA_REGS_CAPS_OFF);
+ int width;
+
+ if (unlikely(caps == ENA_MMIO_READ_TIMEOUT)) {
+ ena_trc_err("Reg read timeout occurred\n");
+ return ENA_COM_TIMER_EXPIRED;
+ }
+
+ width = (caps & ENA_REGS_CAPS_DMA_ADDR_WIDTH_MASK) >>
+ ENA_REGS_CAPS_DMA_ADDR_WIDTH_SHIFT;
+
+ ena_trc_dbg("ENA dma width: %d\n", width);
+
+ if ((width < 32) || width > ENA_MAX_PHYS_ADDR_SIZE_BITS) {
+ ena_trc_err("DMA width illegal value: %d\n", width);
+ return ENA_COM_INVAL;
+ }
+
+ ena_dev->dma_addr_bits = width;
+
+ return width;
+}
+
+int ena_com_validate_version(struct ena_com_dev *ena_dev)
+{
+ u32 ver;
+ u32 ctrl_ver;
+ u32 ctrl_ver_masked;
+ /* Make sure the ENA version and the controller version are at least
+ * as the driver expects
+ */
+
+ ver = ena_com_reg_bar_read32(ena_dev, ENA_REGS_VERSION_OFF);
+ ctrl_ver = ena_com_reg_bar_read32(ena_dev,
+ ENA_REGS_CONTROLLER_VERSION_OFF);
+
+ if (unlikely((ver == ENA_MMIO_READ_TIMEOUT) ||
+ (ctrl_ver == ENA_MMIO_READ_TIMEOUT))) {
+ ena_trc_err("Reg read timeout occurred\n");
+ return ENA_COM_TIMER_EXPIRED;
+ }
+
+ ena_trc_info("ena device version: %d.%d\n",
+ (ver & ENA_REGS_VERSION_MAJOR_VERSION_MASK) >>
+ ENA_REGS_VERSION_MAJOR_VERSION_SHIFT,
+ ver & ENA_REGS_VERSION_MINOR_VERSION_MASK);
+
+ if (ver < MIN_ENA_VER) {
+ ena_trc_err("ENA version is lower than the minimal version the driver supports\n");
+ return -1;
+ }
+
+ ena_trc_info("ena controller version: %d.%d.%d implementation version %d\n",
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK)
+ >> ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT,
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK)
+ >> ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT,
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK),
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_IMPL_ID_MASK) >>
+ ENA_REGS_CONTROLLER_VERSION_IMPL_ID_SHIFT);
+
+ ctrl_ver_masked =
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK) |
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK) |
+ (ctrl_ver & ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK);
+
+ /* Validate the ctrl version without the implementation ID */
+ if (ctrl_ver_masked < MIN_ENA_CTRL_VER) {
+ ena_trc_err("ENA ctrl version is lower than the minimal ctrl version the driver supports\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+void ena_com_admin_destroy(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+
+ if (!admin_queue)
+ return;
+
+ if (admin_queue->comp_ctx)
+ ENA_MEM_FREE(ena_dev->dmadev, admin_queue->comp_ctx);
+ admin_queue->comp_ctx = NULL;
+
+ if (admin_queue->sq.entries)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ ADMIN_SQ_SIZE(admin_queue->q_depth),
+ admin_queue->sq.entries,
+ admin_queue->sq.dma_addr,
+ admin_queue->sq.mem_handle);
+ admin_queue->sq.entries = NULL;
+
+ if (admin_queue->cq.entries)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ ADMIN_CQ_SIZE(admin_queue->q_depth),
+ admin_queue->cq.entries,
+ admin_queue->cq.dma_addr,
+ admin_queue->cq.mem_handle);
+ admin_queue->cq.entries = NULL;
+
+ if (ena_dev->aenq.entries)
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ ADMIN_AENQ_SIZE(ena_dev->aenq.q_depth),
+ ena_dev->aenq.entries,
+ ena_dev->aenq.dma_addr,
+ ena_dev->aenq.mem_handle);
+ ena_dev->aenq.entries = NULL;
+}
+
+void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling)
+{
+ ena_dev->admin_queue.polling = polling;
+}
+
+int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read;
+
+ ENA_SPINLOCK_INIT(mmio_read->lock);
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
+ sizeof(*mmio_read->read_resp),
+ mmio_read->read_resp,
+ mmio_read->read_resp_dma_addr,
+ mmio_read->read_resp_mem_handle);
+ if (unlikely(!mmio_read->read_resp))
+ return ENA_COM_NO_MEM;
+
+ ena_com_mmio_reg_read_request_write_dev_addr(ena_dev);
+
+ mmio_read->read_resp->req_id = 0x0;
+ mmio_read->seq_num = 0x0;
+
+ return 0;
+}
+
+void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read;
+
+ ENA_REG_WRITE32(0x0, &ena_dev->reg_bar->mmio_resp_lo);
+ ENA_REG_WRITE32(0x0, &ena_dev->reg_bar->mmio_resp_hi);
+
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
+ sizeof(*mmio_read->read_resp),
+ mmio_read->read_resp,
+ mmio_read->read_resp_dma_addr,
+ mmio_read->read_resp_mem_handle);
+
+ mmio_read->read_resp = NULL;
+}
+
+void ena_com_mmio_reg_read_request_write_dev_addr(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read;
+ u32 addr_low, addr_high;
+
+ addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(mmio_read->read_resp_dma_addr);
+ addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(mmio_read->read_resp_dma_addr);
+
+ ENA_REG_WRITE32(addr_low, &ena_dev->reg_bar->mmio_resp_lo);
+ ENA_REG_WRITE32(addr_high, &ena_dev->reg_bar->mmio_resp_hi);
+}
+
+int ena_com_admin_init(struct ena_com_dev *ena_dev,
+ struct ena_aenq_handlers *aenq_handlers,
+ bool init_spinlock)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ u32 aq_caps, acq_caps, dev_sts, addr_low, addr_high;
+ int ret;
+
+ dev_sts = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF);
+
+ if (unlikely(dev_sts == ENA_MMIO_READ_TIMEOUT)) {
+ ena_trc_err("Reg read timeout occurred\n");
+ return ENA_COM_TIMER_EXPIRED;
+ }
+
+ if (!(dev_sts & ENA_REGS_DEV_STS_READY_MASK)) {
+ ena_trc_err("Device isn't ready, abort com init\n");
+ return -1;
+ }
+
+ admin_queue->q_depth = ENA_ADMIN_QUEUE_DEPTH;
+
+ admin_queue->q_dmadev = ena_dev->dmadev;
+ admin_queue->polling = false;
+ admin_queue->curr_cmd_id = 0;
+
+ ATOMIC32_SET(&admin_queue->outstanding_cmds, 0);
+
+ if (init_spinlock)
+ ENA_SPINLOCK_INIT(admin_queue->q_lock);
+
+ ret = ena_com_init_comp_ctxt(admin_queue);
+ if (ret)
+ goto error;
+
+ ret = ena_com_admin_init_sq(admin_queue);
+ if (ret)
+ goto error;
+
+ ret = ena_com_admin_init_cq(admin_queue);
+ if (ret)
+ goto error;
+
+ admin_queue->sq.db_addr = (void __iomem *)&ena_dev->reg_bar->aq_db;
+
+ addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(admin_queue->sq.dma_addr);
+ addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(admin_queue->sq.dma_addr);
+
+ ENA_REG_WRITE32(addr_low, &ena_dev->reg_bar->aq_base_lo);
+ ENA_REG_WRITE32(addr_high, &ena_dev->reg_bar->aq_base_hi);
+
+ addr_low = ENA_DMA_ADDR_TO_UINT32_LOW(admin_queue->cq.dma_addr);
+ addr_high = ENA_DMA_ADDR_TO_UINT32_HIGH(admin_queue->cq.dma_addr);
+
+ ENA_REG_WRITE32(addr_low, &ena_dev->reg_bar->acq_base_lo);
+ ENA_REG_WRITE32(addr_high, &ena_dev->reg_bar->acq_base_hi);
+
+ aq_caps = 0;
+ aq_caps |= admin_queue->q_depth & ENA_REGS_AQ_CAPS_AQ_DEPTH_MASK;
+ aq_caps |= (sizeof(struct ena_admin_aq_entry) <<
+ ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_SHIFT) &
+ ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_MASK;
+
+ acq_caps = 0;
+ acq_caps |= admin_queue->q_depth & ENA_REGS_ACQ_CAPS_ACQ_DEPTH_MASK;
+ acq_caps |= (sizeof(struct ena_admin_acq_entry) <<
+ ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_SHIFT) &
+ ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_MASK;
+
+ ENA_REG_WRITE32(aq_caps, &ena_dev->reg_bar->aq_caps);
+ ENA_REG_WRITE32(acq_caps, &ena_dev->reg_bar->acq_caps);
+ ret = ena_com_admin_init_aenq(ena_dev, aenq_handlers);
+ if (ret)
+ goto error;
+
+ admin_queue->running_state = true;
+
+ return 0;
+error:
+ ena_com_admin_destroy(ena_dev);
+
+ return ret;
+}
+
+int ena_com_create_io_queue(struct ena_com_dev *ena_dev,
+ u16 qid,
+ enum queue_direction direction,
+ enum ena_admin_placement_policy_type mem_queue_type,
+ u32 msix_vector,
+ u16 queue_size)
+{
+ struct ena_com_io_sq *io_sq;
+ struct ena_com_io_cq *io_cq;
+ int ret = 0;
+
+ if (qid >= ENA_TOTAL_NUM_QUEUES) {
+ ena_trc_err("Qid (%d) is bigger than max num of queues (%d)\n",
+ qid, ENA_TOTAL_NUM_QUEUES);
+ return ENA_COM_INVAL;
+ }
+
+ io_sq = &ena_dev->io_sq_queues[qid];
+ io_cq = &ena_dev->io_cq_queues[qid];
+
+ memset(io_sq, 0x0, sizeof(struct ena_com_io_sq));
+ memset(io_cq, 0x0, sizeof(struct ena_com_io_cq));
+
+ /* Init CQ */
+ io_cq->q_depth = queue_size;
+ io_cq->direction = direction;
+ io_cq->qid = qid;
+
+ io_cq->msix_vector = msix_vector;
+
+ io_sq->q_depth = queue_size;
+ io_sq->direction = direction;
+ io_sq->qid = qid;
+
+ io_sq->mem_queue_type = mem_queue_type;
+
+ ret = ena_com_init_io_sq(ena_dev, io_sq);
+ if (ret)
+ goto error;
+ ret = ena_com_init_io_cq(ena_dev, io_cq);
+ if (ret)
+ goto error;
+
+ ret = ena_com_create_io_cq(ena_dev, io_cq);
+ if (ret)
+ goto error;
+
+ ret = ena_com_create_io_sq(ena_dev, io_sq, io_cq->idx);
+ if (ret)
+ goto destroy_io_cq;
+
+ return 0;
+
+destroy_io_cq:
+ ena_com_destroy_io_cq(ena_dev, io_cq);
+error:
+ ena_com_io_queue_free(ena_dev, io_sq, io_cq);
+ return ret;
+}
+
+void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid)
+{
+ struct ena_com_io_sq *io_sq;
+ struct ena_com_io_cq *io_cq;
+
+ if (qid >= ENA_TOTAL_NUM_QUEUES) {
+ ena_trc_err("Qid (%d) is bigger than max num of queues (%d)\n",
+ qid, ENA_TOTAL_NUM_QUEUES);
+ return;
+ }
+
+ io_sq = &ena_dev->io_sq_queues[qid];
+ io_cq = &ena_dev->io_cq_queues[qid];
+
+ ena_com_destroy_io_sq(ena_dev, io_sq);
+ ena_com_destroy_io_cq(ena_dev, io_cq);
+
+ ena_com_io_queue_free(ena_dev, io_sq, io_cq);
+}
+
+int ena_com_get_link_params(struct ena_com_dev *ena_dev,
+ struct ena_admin_get_feat_resp *resp)
+{
+ return ena_com_get_feature(ena_dev, resp, ENA_ADMIN_LINK_CONFIG);
+}
+
+int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
+ struct ena_com_dev_get_features_ctx *get_feat_ctx)
+{
+ struct ena_admin_get_feat_resp get_resp;
+ int rc;
+
+ rc = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_DEVICE_ATTRIBUTES);
+ if (rc)
+ return rc;
+
+ memcpy(&get_feat_ctx->dev_attr, &get_resp.u.dev_attr,
+ sizeof(get_resp.u.dev_attr));
+ ena_dev->supported_features = get_resp.u.dev_attr.supported_features;
+
+ rc = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_MAX_QUEUES_NUM);
+ if (rc)
+ return rc;
+
+ memcpy(&get_feat_ctx->max_queues, &get_resp.u.max_queue,
+ sizeof(get_resp.u.max_queue));
+
+ rc = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_AENQ_CONFIG);
+ if (rc)
+ return rc;
+
+ memcpy(&get_feat_ctx->aenq, &get_resp.u.aenq,
+ sizeof(get_resp.u.aenq));
+
+ rc = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_STATELESS_OFFLOAD_CONFIG);
+ if (rc)
+ return rc;
+
+ memcpy(&get_feat_ctx->offload, &get_resp.u.offload,
+ sizeof(get_resp.u.offload));
+
+ return 0;
+}
+
+void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev)
+{
+ ena_com_handle_admin_completion(&ena_dev->admin_queue);
+}
+
+/* ena_handle_specific_aenq_event:
+ * return the handler that is relevant to the specific event group
+ */
+static ena_aenq_handler ena_com_get_specific_aenq_cb(struct ena_com_dev *dev,
+ u16 group)
+{
+ struct ena_aenq_handlers *aenq_handlers = dev->aenq.aenq_handlers;
+
+ if ((group < ENA_MAX_HANDLERS) && aenq_handlers->handlers[group])
+ return aenq_handlers->handlers[group];
+
+ return aenq_handlers->unimplemented_handler;
+}
+
+/* ena_aenq_intr_handler:
+ * handles the aenq incoming events.
+ * pop events from the queue and apply the specific handler
+ */
+void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data)
+{
+ struct ena_admin_aenq_entry *aenq_e;
+ struct ena_admin_aenq_common_desc *aenq_common;
+ struct ena_com_aenq *aenq = &dev->aenq;
+ ena_aenq_handler handler_cb;
+ u16 masked_head, processed = 0;
+ u8 phase;
+
+ masked_head = aenq->head & (aenq->q_depth - 1);
+ phase = aenq->phase;
+ aenq_e = &aenq->entries[masked_head]; /* Get first entry */
+ aenq_common = &aenq_e->aenq_common_desc;
+
+ /* Go over all the events */
+ while ((aenq_common->flags & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK) ==
+ phase) {
+ ena_trc_dbg("AENQ! Group[%x] Syndrom[%x] timestamp: [%llus]\n",
+ aenq_common->group,
+ aenq_common->syndrom,
+ (u64)aenq_common->timestamp_low +
+ ((u64)aenq_common->timestamp_high << 32));
+
+ /* Handle specific event*/
+ handler_cb = ena_com_get_specific_aenq_cb(dev,
+ aenq_common->group);
+ handler_cb(data, aenq_e); /* call the actual event handler*/
+
+ /* Get next event entry */
+ masked_head++;
+ processed++;
+
+ if (unlikely(masked_head == aenq->q_depth)) {
+ masked_head = 0;
+ phase = !phase;
+ }
+ aenq_e = &aenq->entries[masked_head];
+ aenq_common = &aenq_e->aenq_common_desc;
+ }
+
+ aenq->head += processed;
+ aenq->phase = phase;
+
+ /* update ena-device for the last processed event */
+ if (processed) {
+ /* write the aenq doorbell after all AENQ descriptors were read */
+ mb();
+ ENA_REG_WRITE32((u32)aenq->head, &dev->reg_bar->aenq_head_db);
+ }
+}
+
+/*
+ * Sets the function Idx and Queue Idx to be used for
+ * get full statistics feature
+ *
+ */
+int ena_com_extended_stats_set_func_queue(struct ena_com_dev *ena_dev,
+ u32 func_queue)
+{
+
+ /* Function & Queue is acquired from user in the following format :
+ * Bottom Half word: funct
+ * Top Half Word: queue
+ */
+ ena_dev->stats_func = ENA_EXTENDED_STAT_GET_FUNCT(func_queue);
+ ena_dev->stats_queue = ENA_EXTENDED_STAT_GET_QUEUE(func_queue);
+
+ return 0;
+}
+
+int ena_com_dev_reset(struct ena_com_dev *ena_dev)
+{
+ u32 stat, timeout, cap;
+ int rc;
+
+ stat = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF);
+ cap = ena_com_reg_bar_read32(ena_dev, ENA_REGS_CAPS_OFF);
+
+ if (unlikely((stat == ENA_MMIO_READ_TIMEOUT) ||
+ (cap == ENA_MMIO_READ_TIMEOUT))) {
+ ena_trc_err("Reg read32 timeout occurred\n");
+ return ENA_COM_TIMER_EXPIRED;
+ }
+
+ if ((stat & ENA_REGS_DEV_STS_READY_MASK) == 0) {
+ ena_trc_err("Device isn't ready, can't reset device\n");
+ return ENA_COM_INVAL;
+ }
+
+ timeout = (cap & ENA_REGS_CAPS_RESET_TIMEOUT_MASK) >>
+ ENA_REGS_CAPS_RESET_TIMEOUT_SHIFT;
+ if (timeout == 0) {
+ ena_trc_err("Invalid timeout value\n");
+ return ENA_COM_INVAL;
+ }
+
+ /* start reset */
+ ENA_REG_WRITE32(ENA_REGS_DEV_CTL_DEV_RESET_MASK, &ena_dev->reg_bar->dev_ctl);
+
+ /* Write again the MMIO read request address */
+ ena_com_mmio_reg_read_request_write_dev_addr(ena_dev);
+
+ rc = wait_for_reset_state(ena_dev, timeout,
+ ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK);
+ if (rc != 0) {
+ ena_trc_err("Reset indication didn't turn on\n");
+ return rc;
+ }
+
+ /* reset done */
+ ENA_REG_WRITE32(0, &ena_dev->reg_bar->dev_ctl);
+ rc = wait_for_reset_state(ena_dev, timeout, 0);
+ if (rc != 0) {
+ ena_trc_err("Reset indication didn't turn off\n");
+ return rc;
+ }
+
+ return 0;
+}
+
+static int ena_get_dev_stats(struct ena_com_dev *ena_dev,
+ struct ena_admin_aq_get_stats_cmd *get_cmd,
+ struct ena_admin_acq_get_stats_resp *get_resp,
+ enum ena_admin_get_stats_type type)
+{
+ struct ena_com_admin_queue *admin_queue;
+ int ret = 0;
+
+ if (!ena_dev) {
+ ena_trc_err("%s : ena_dev is NULL\n", __func__);
+ return ENA_COM_NO_DEVICE;
+ }
+
+ admin_queue = &ena_dev->admin_queue;
+
+ get_cmd->aq_common_descriptor.opcode = ENA_ADMIN_GET_STATS;
+ get_cmd->aq_common_descriptor.flags = 0;
+ get_cmd->type = type;
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)get_cmd,
+ sizeof(*get_cmd),
+ (struct ena_admin_acq_entry *)get_resp,
+ sizeof(*get_resp));
+
+ if (unlikely(ret))
+ ena_trc_err("Failed to get stats. error: %d\n", ret);
+
+ return ret;
+}
+
+int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev,
+ struct ena_admin_basic_stats *stats)
+{
+ int ret = 0;
+ struct ena_admin_aq_get_stats_cmd get_cmd;
+ struct ena_admin_acq_get_stats_resp get_resp;
+
+ memset(&get_cmd, 0x0, sizeof(get_cmd));
+ ret = ena_get_dev_stats(ena_dev, &get_cmd, &get_resp,
+ ENA_ADMIN_GET_STATS_TYPE_BASIC);
+ if (likely(ret == 0))
+ memcpy(stats, &get_resp.basic_stats,
+ sizeof(get_resp.basic_stats));
+
+ return ret;
+}
+
+int ena_com_get_dev_extended_stats(struct ena_com_dev *ena_dev, char *buff,
+ u32 len)
+{
+ int ret = 0;
+ struct ena_admin_aq_get_stats_cmd get_cmd;
+ struct ena_admin_acq_get_stats_resp get_resp;
+ ena_mem_handle_t mem_handle;
+ void *virt_addr;
+ dma_addr_t phys_addr;
+
+ ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, len,
+ virt_addr, phys_addr, mem_handle);
+ if (!virt_addr) {
+ ret = ENA_COM_NO_MEM;
+ goto done;
+ }
+ memset(&get_cmd, 0x0, sizeof(get_cmd));
+ ret = ena_com_mem_addr_set(ena_dev,
+ &get_cmd.u.control_buffer.address,
+ phys_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+ get_cmd.u.control_buffer.length = len;
+
+ get_cmd.device_id = ena_dev->stats_func;
+ get_cmd.queue_idx = ena_dev->stats_queue;
+
+ ret = ena_get_dev_stats(ena_dev, &get_cmd, &get_resp,
+ ENA_ADMIN_GET_STATS_TYPE_EXTENDED);
+ if (ret < 0)
+ goto free_ext_stats_mem;
+
+ ret = snprintf(buff, len, "%s", (char *)virt_addr);
+
+free_ext_stats_mem:
+ ENA_MEM_FREE_COHERENT(ena_dev->dmadev, len, virt_addr, phys_addr,
+ mem_handle);
+done:
+ return ret;
+}
+
+int ena_com_set_dev_mtu(struct ena_com_dev *ena_dev, int mtu)
+{
+ struct ena_com_admin_queue *admin_queue;
+ struct ena_admin_set_feat_cmd cmd;
+ struct ena_admin_set_feat_resp resp;
+ int ret = 0;
+
+ if (unlikely(!ena_dev)) {
+ ena_trc_err("%s : ena_dev is NULL\n", __func__);
+ return ENA_COM_NO_DEVICE;
+ }
+
+ if (!ena_com_check_supported_feature_id(ena_dev, ENA_ADMIN_MTU)) {
+ ena_trc_info("Feature %d isn't supported\n", ENA_ADMIN_MTU);
+ return ENA_COM_PERMISSION;
+ }
+
+ memset(&cmd, 0x0, sizeof(cmd));
+ admin_queue = &ena_dev->admin_queue;
+
+ cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
+ cmd.aq_common_descriptor.flags = 0;
+ cmd.feat_common.feature_id = ENA_ADMIN_MTU;
+ cmd.u.mtu.mtu = mtu;
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&cmd,
+ sizeof(cmd),
+ (struct ena_admin_acq_entry *)&resp,
+ sizeof(resp));
+
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to set mtu %d. error: %d\n", mtu, ret);
+ return ENA_COM_INVAL;
+ }
+ return 0;
+}
+
+int ena_com_set_interrupt_moderation(struct ena_com_dev *ena_dev, int qid,
+ bool enable, u16 count, u16 interval)
+{
+ struct ena_com_io_cq *io_cq = &ena_dev->io_cq_queues[qid];
+
+ struct ena_com_admin_queue *admin_queue;
+ struct ena_admin_set_feat_cmd cmd;
+ struct ena_admin_set_feat_resp resp;
+ u8 direction;
+ int ret = 0;
+
+ if (unlikely(!ena_dev)) {
+ ena_trc_err("%s : ena_dev is NULL\n", __func__);
+ return ENA_COM_NO_DEVICE;
+ }
+
+ if (!ena_com_check_supported_feature_id(ena_dev,
+ ENA_ADMIN_INTERRUPT_MODERATION)) {
+ ena_trc_err("Feature %d isn't supported\n",
+ ENA_ADMIN_INTERRUPT_MODERATION);
+ return ENA_COM_PERMISSION;
+ }
+
+ memset(&cmd, 0x0, sizeof(cmd));
+ admin_queue = &ena_dev->admin_queue;
+
+ cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
+ cmd.aq_common_descriptor.flags = 0;
+ cmd.feat_common.feature_id = ENA_ADMIN_INTERRUPT_MODERATION;
+ cmd.u.intr_moder.cq_idx = io_cq->idx;
+ if (io_cq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX)
+ direction = ENA_ADMIN_SQ_DIRECTION_TX;
+ else
+ direction = ENA_ADMIN_SQ_DIRECTION_RX;
+
+ cmd.u.intr_moder.queue_identity |= direction &
+ ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_SQ_DIRECTION_MASK;
+
+ if (enable) {
+ cmd.u.intr_moder.flags |=
+ ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_ENABLE_MASK;
+ cmd.u.intr_moder.intr_moder_metrics.count = count;
+ cmd.u.intr_moder.intr_moder_metrics.interval = interval;
+ }
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&cmd,
+ sizeof(cmd),
+ (struct ena_admin_acq_entry *)&resp,
+ sizeof(resp));
+
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to set interrupt moderation %d\n", ret);
+ return ENA_COM_INVAL;
+ }
+ return 0;
+}
+
+int ena_com_get_offload_settings(struct ena_com_dev *ena_dev,
+ struct ena_admin_feature_offload_desc *offload)
+{
+ int ret;
+ struct ena_admin_get_feat_resp resp;
+
+ ret = ena_com_get_feature(ena_dev, &resp,
+ ENA_ADMIN_STATELESS_OFFLOAD_CONFIG);
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to get offload capabilities %d\n", ret);
+ return ENA_COM_INVAL;
+ }
+
+ memcpy(offload, &resp.u.offload, sizeof(resp.u.offload));
+
+ return 0;
+}
+
+int ena_com_set_hash_function(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_set_feat_cmd cmd;
+ struct ena_admin_set_feat_resp resp;
+ struct ena_admin_get_feat_resp get_resp;
+ int ret;
+
+ if (!ena_com_check_supported_feature_id(ena_dev,
+ ENA_ADMIN_RSS_HASH_FUNCTION)) {
+ ena_trc_err("Feature %d isn't supported\n",
+ ENA_ADMIN_RSS_HASH_FUNCTION);
+ return ENA_COM_PERMISSION;
+ }
+
+ /* Validate hash function is supported */
+ ret = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_RSS_HASH_FUNCTION);
+ if (unlikely(ret))
+ return ret;
+
+ if (get_resp.u.flow_hash_func.supported_func & (1 << rss->hash_func)) {
+ ena_trc_err("Func hash %d isn't supported by device, abort\n",
+ rss->hash_func);
+ return ENA_COM_PERMISSION;
+ }
+
+ memset(&cmd, 0x0, sizeof(cmd));
+
+ cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
+ cmd.aq_common_descriptor.flags =
+ ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;
+ cmd.feat_common.feature_id = ENA_ADMIN_RSS_HASH_FUNCTION;
+ cmd.u.flow_hash_func.init_val = rss->hash_init_val;
+ cmd.u.flow_hash_func.selected_func = 1 << rss->hash_func;
+
+ ret = ena_com_mem_addr_set(ena_dev,
+ &cmd.control_buffer.address,
+ rss->hash_key_dma_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+
+ cmd.control_buffer.length = sizeof(*rss->hash_key);
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&cmd,
+ sizeof(cmd),
+ (struct ena_admin_acq_entry *)&resp,
+ sizeof(resp));
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to set hash function %d. error: %d\n",
+ rss->hash_func, ret);
+ return ENA_COM_INVAL;
+ }
+
+ return 0;
+}
+
+int ena_com_fill_hash_function(struct ena_com_dev *ena_dev,
+ enum ena_admin_hash_functions func,
+ const u8 *key, u16 key_len, u32 init_val)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_get_feat_resp get_resp;
+ struct ena_admin_feature_rss_flow_hash_control *hash_key =
+ rss->hash_key;
+ int rc;
+
+ /* Make sure size is a mult of DWs */
+ if (unlikely(key_len & 0x3))
+ return ENA_COM_INVAL;
+
+ rc = ena_com_get_feature_ex(ena_dev, &get_resp,
+ ENA_ADMIN_RSS_HASH_FUNCTION,
+ rss->hash_key_dma_addr,
+ sizeof(*rss->hash_key));
+ if (unlikely(rc))
+ return rc;
+
+ if (!((1 << func) & get_resp.u.flow_hash_func.supported_func)) {
+ ena_trc_err("Flow hash function %d isn't supported\n", func);
+ return ENA_COM_PERMISSION;
+ }
+
+ switch (func) {
+ case ENA_ADMIN_TOEPLITZ:
+ if (key_len > sizeof(hash_key->key)) {
+ ena_trc_err("key len (%hu) is bigger than the max supported (%zu)\n",
+ key_len, sizeof(hash_key->key));
+ return ENA_COM_INVAL;
+ }
+
+ memcpy(hash_key->key, key, key_len);
+ rss->hash_init_val = init_val;
+ hash_key->keys_num = key_len >> 2;
+ break;
+ case ENA_ADMIN_CRC32:
+ rss->hash_init_val = init_val;
+ break;
+ default:
+ ena_trc_err("Invalid hash function (%d)\n", func);
+ return ENA_COM_INVAL;
+ }
+
+ rc = ena_com_set_hash_function(ena_dev);
+
+ /* Restore the old function */
+ if (unlikely(rc))
+ ena_com_get_hash_function(ena_dev, NULL, NULL);
+
+ return rc;
+}
+
+int ena_com_get_hash_function(struct ena_com_dev *ena_dev,
+ enum ena_admin_hash_functions *func,
+ u8 *key)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_get_feat_resp get_resp;
+ struct ena_admin_feature_rss_flow_hash_control *hash_key =
+ rss->hash_key;
+ int rc;
+
+ rc = ena_com_get_feature_ex(ena_dev, &get_resp,
+ ENA_ADMIN_RSS_HASH_FUNCTION,
+ rss->hash_key_dma_addr,
+ sizeof(*rss->hash_key));
+ if (unlikely(rc))
+ return rc;
+
+ rss->hash_func = get_resp.u.flow_hash_func.selected_func;
+ if (func)
+ *func = rss->hash_func;
+
+ if (key)
+ memcpy(key, hash_key->key, hash_key->keys_num << 2);
+
+ return 0;
+}
+
+int ena_com_get_hash_ctrl(struct ena_com_dev *ena_dev,
+ enum ena_admin_flow_hash_proto proto,
+ u16 *fields)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_get_feat_resp get_resp;
+ int rc;
+
+ rc = ena_com_get_feature_ex(ena_dev, &get_resp,
+ ENA_ADMIN_RSS_HASH_INPUT,
+ rss->hash_ctrl_dma_addr,
+ sizeof(*rss->hash_ctrl));
+ if (unlikely(rc))
+ return rc;
+
+ if (fields)
+ *fields = rss->hash_ctrl->selected_fields[proto].fields;
+
+ return 0;
+}
+
+int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_feature_rss_hash_control *hash_ctrl = rss->hash_ctrl;
+ struct ena_admin_set_feat_cmd cmd;
+ struct ena_admin_set_feat_resp resp;
+ int ret;
+
+ if (!ena_com_check_supported_feature_id(ena_dev,
+ ENA_ADMIN_RSS_HASH_INPUT)) {
+ ena_trc_err("Feature %d isn't supported\n",
+ ENA_ADMIN_RSS_HASH_INPUT);
+ return ENA_COM_PERMISSION;
+ }
+
+ cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
+ cmd.aq_common_descriptor.flags =
+ ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;
+ cmd.feat_common.feature_id = ENA_ADMIN_RSS_HASH_INPUT;
+ cmd.u.flow_hash_input.enabled_input_sort =
+ ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK |
+ ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK;
+
+ ret = ena_com_mem_addr_set(ena_dev,
+ &cmd.control_buffer.address,
+ rss->hash_ctrl_dma_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+ cmd.control_buffer.length = sizeof(*hash_ctrl);
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&cmd,
+ sizeof(cmd),
+ (struct ena_admin_acq_entry *)&resp,
+ sizeof(resp));
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to set hash input. error: %d\n", ret);
+ ret = ENA_COM_INVAL;
+ }
+
+ return 0;
+}
+
+int ena_com_set_default_hash_ctrl(struct ena_com_dev *ena_dev)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_feature_rss_hash_control *hash_ctrl =
+ rss->hash_ctrl;
+ u16 available_fields = 0;
+ int rc, i;
+
+ /* Get the supported hash input */
+ rc = ena_com_get_hash_ctrl(ena_dev, 0, NULL);
+ if (unlikely(rc))
+ return rc;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_TCP4].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA |
+ ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_UDP4].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA |
+ ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_TCP6].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA |
+ ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_UDP6].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA |
+ ENA_ADMIN_RSS_L4_DP | ENA_ADMIN_RSS_L4_SP;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP4].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP6].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP4_FRAG].fields =
+ ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA;
+
+ hash_ctrl->selected_fields[ENA_ADMIN_RSS_IP4_FRAG].fields =
+ ENA_ADMIN_RSS_L2_DA | ENA_ADMIN_RSS_L2_SA;
+
+ for (i = 0; i < ENA_ADMIN_RSS_PROTO_NUM; i++) {
+ available_fields = hash_ctrl->selected_fields[i].fields &
+ hash_ctrl->supported_fields[i].fields;
+ if (available_fields != hash_ctrl->selected_fields[i].fields) {
+ ena_trc_err("hash control doesn't support all the desire configuration. proto %x supported %x selected %x\n",
+ i, hash_ctrl->supported_fields[i].fields,
+ hash_ctrl->selected_fields[i].fields);
+ return ENA_COM_PERMISSION;
+ }
+ }
+
+ rc = ena_com_set_hash_ctrl(ena_dev);
+
+ /* In case of failure, restore the old hash ctrl */
+ if (unlikely(rc))
+ ena_com_get_hash_ctrl(ena_dev, 0, NULL);
+
+ return rc;
+}
+
+int ena_com_fill_hash_ctrl(struct ena_com_dev *ena_dev,
+ enum ena_admin_flow_hash_proto proto,
+ u16 hash_fields)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_feature_rss_hash_control *hash_ctrl = rss->hash_ctrl;
+ u16 supported_fields;
+ int rc;
+
+ if (proto > ENA_ADMIN_RSS_PROTO_NUM) {
+ ena_trc_err("Invalid proto num (%u)\n", proto);
+ return ENA_COM_INVAL;
+ }
+
+ /* Get the ctrl table */
+ rc = ena_com_get_hash_ctrl(ena_dev, proto, NULL);
+ if (unlikely(rc))
+ return rc;
+
+ /* Make sure all the fields are supported */
+ supported_fields = hash_ctrl->supported_fields[proto].fields;
+ if ((hash_fields & supported_fields) != hash_fields) {
+ ena_trc_err("proto %d doesn't support the required fields %x. supports only: %x\n",
+ proto, hash_fields, supported_fields);
+ }
+
+ hash_ctrl->selected_fields[proto].fields = hash_fields;
+
+ rc = ena_com_set_hash_ctrl(ena_dev);
+
+ /* In case of failure, restore the old hash ctrl */
+ if (unlikely(rc))
+ ena_com_get_hash_ctrl(ena_dev, 0, NULL);
+
+ return 0;
+}
+
+int ena_com_indirect_table_fill_entry(struct ena_com_dev *ena_dev,
+ u16 entry_idx, u16 entry_value)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+
+ if (unlikely(entry_idx >= (1 << rss->tbl_log_size)))
+ return ENA_COM_INVAL;
+
+ if (unlikely((entry_value > ENA_TOTAL_NUM_QUEUES)))
+ return ENA_COM_INVAL;
+
+ rss->host_rss_ind_tbl[entry_idx] = entry_value;
+
+ return 0;
+}
+
+int ena_com_indirect_table_set(struct ena_com_dev *ena_dev)
+{
+ struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_set_feat_cmd cmd;
+ struct ena_admin_set_feat_resp resp;
+ int ret = 0;
+
+ if (!ena_com_check_supported_feature_id(ena_dev,
+ ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG)) {
+ ena_trc_err("Feature %d isn't supported\n",
+ ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG);
+ return ENA_COM_PERMISSION;
+ }
+
+ ret = ena_com_ind_tbl_convert_to_device(ena_dev);
+ if (ret) {
+ ena_trc_err("Failed to convert host indirection table to device table\n");
+ return ret;
+ }
+
+ memset(&cmd, 0x0, sizeof(cmd));
+
+ cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
+ cmd.aq_common_descriptor.flags =
+ ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;
+ cmd.feat_common.feature_id = ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG;
+ cmd.u.ind_table.size = rss->tbl_log_size;
+ cmd.u.ind_table.inline_index = 0xFFFFFFFF;
+
+ ret = ena_com_mem_addr_set(ena_dev,
+ &cmd.control_buffer.address,
+ rss->rss_ind_tbl_dma_addr);
+ if (unlikely(ret)) {
+ ena_trc_err("memory address set failed\n");
+ return ret;
+ }
+
+ cmd.control_buffer.length = (1 << rss->tbl_log_size) *
+ sizeof(struct ena_admin_rss_ind_table_entry);
+
+ ret = ena_com_execute_admin_command(admin_queue,
+ (struct ena_admin_aq_entry *)&cmd,
+ sizeof(cmd),
+ (struct ena_admin_acq_entry *)&resp,
+ sizeof(resp));
+
+ if (unlikely(ret)) {
+ ena_trc_err("Failed to set indirect table. error: %d\n", ret);
+ return ENA_COM_INVAL;
+ }
+
+ return 0;
+}
+
+int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl)
+{
+ struct ena_rss *rss = &ena_dev->rss;
+ struct ena_admin_get_feat_resp get_resp;
+ u32 tbl_size;
+ int i, rc;
+
+ tbl_size = (1 << rss->tbl_log_size) *
+ sizeof(struct ena_admin_rss_ind_table_entry);
+
+ rc = ena_com_get_feature_ex(ena_dev, &get_resp,
+ ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG,
+ rss->rss_ind_tbl_dma_addr,
+ tbl_size);
+ if (unlikely(rc))
+ return rc;
+
+ if (!ind_tbl)
+ return 0;
+
+ rc = ena_com_ind_tbl_convert_from_device(ena_dev);
+ if (unlikely(rc))
+ return rc;
+
+ for (i = 0; i < (1 << rss->tbl_log_size); i++)
+ ind_tbl[i] = rss->host_rss_ind_tbl[i];
+
+ return 0;
+}
+
+int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 indr_tbl_log_size)
+{
+ int rc;
+
+ memset(&ena_dev->rss, 0x0, sizeof(ena_dev->rss));
+
+ rc = ena_com_indirect_table_allocate(ena_dev, indr_tbl_log_size);
+ if (unlikely(rc))
+ goto err_indr_tbl;
+
+ rc = ena_com_hash_key_allocate(ena_dev);
+ if (unlikely(rc))
+ goto err_hash_key;
+
+ rc = ena_com_hash_ctrl_init(ena_dev);
+ if (unlikely(rc))
+ goto err_hash_ctrl;
+
+ return 0;
+
+err_hash_ctrl:
+ ena_com_hash_key_destroy(ena_dev);
+err_hash_key:
+ ena_com_indirect_table_destroy(ena_dev);
+err_indr_tbl:
+
+ return rc;
+}
+
+int ena_com_rss_destroy(struct ena_com_dev *ena_dev)
+{
+ ena_com_indirect_table_destroy(ena_dev);
+ ena_com_hash_key_destroy(ena_dev);
+ ena_com_hash_ctrl_destroy(ena_dev);
+
+ memset(&ena_dev->rss, 0x0, sizeof(ena_dev->rss));
+
+ return 0;
+}
diff --git a/drivers/net/ena/base/ena_com.h b/drivers/net/ena/base/ena_com.h
new file mode 100644
index 0000000..3a0fcdc
--- /dev/null
+++ b/drivers/net/ena/base/ena_com.h
@@ -0,0 +1,764 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef ENA_COM
+#define ENA_COM
+
+#include "ena_plat.h"
+#include "ena_common_defs.h"
+#include "ena_regs_defs.h"
+#include "ena_admin_defs.h"
+#include "ena_eth_io_defs.h"
+
+#if defined(__linux__) && !defined(__KERNEL__)
+#include <rte_lcore.h>
+#include <rte_spinlock.h>
+#define __iomem
+#endif
+
+#define ENA_MAX_NUM_IO_QUEUES 128U
+/* We need to queues for each IO (on for Tx and one for Rx) */
+#define ENA_TOTAL_NUM_QUEUES (2 * (ENA_MAX_NUM_IO_QUEUES))
+
+#define ENA_MAX_HANDLERS 256
+
+#define ENA_MAX_PHYS_ADDR_SIZE_BITS 48
+
+/* Unit in usec */
+#define ENA_REG_READ_TIMEOUT 200000
+
+#define ADMIN_SQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aq_entry))
+#define ADMIN_CQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_acq_entry))
+#define ADMIN_AENQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aenq_entry))
+
+/*****************************************************************************/
+/*****************************************************************************/
+
+enum queue_direction {
+ ENA_COM_IO_QUEUE_DIRECTION_TX,
+ ENA_COM_IO_QUEUE_DIRECTION_RX
+};
+
+struct ena_com_buf {
+ dma_addr_t paddr; /**< Buffer physical address */
+ u16 len; /**< Buffer length in bytes */
+};
+
+struct ena_com_rx_buf_info {
+ u16 len;
+ u16 req_id;
+};
+
+struct ena_com_io_desc_addr {
+ void __iomem *pbuf_dev_addr; /* LLQ address */
+ void *virt_addr;
+ dma_addr_t phys_addr;
+ ena_mem_handle_t mem_handle;
+};
+
+struct ena_com_tx_meta {
+ u16 mss;
+ u16 l3_hdr_len;
+ u16 l3_hdr_offset;
+ u16 l3_outer_hdr_len; /* In words */
+ u16 l3_outer_hdr_offset;
+ u16 l4_hdr_len; /* In words */
+};
+
+struct ena_com_io_cq {
+ struct ena_com_io_desc_addr cdesc_addr;
+
+ u32 __iomem *db_addr;
+
+ /* The offset of the interrupt unmask register */
+ u32 __iomem *unmask_reg;
+
+ /* The value to write to the above register to unmask
+ * the interrupt of this queue
+ */
+ u32 unmask_val;
+ u32 msix_vector;
+
+ enum queue_direction direction;
+
+ /* holds the number of cdesc of the current packet */
+ u16 cur_rx_pkt_cdesc_count;
+ /* save the firt cdesc idx of the current packet */
+ u16 cur_rx_pkt_cdesc_start_idx;
+
+ u16 q_depth;
+ /* Caller qid */
+ u16 qid;
+
+ /* Device queue index */
+ u16 idx;
+ u16 head;
+ u8 phase;
+ u8 cdesc_entry_size_in_bytes;
+
+} ____cacheline_aligned;
+
+struct ena_com_io_sq {
+ struct ena_com_io_desc_addr desc_addr;
+
+ u32 __iomem *db_addr;
+ u8 __iomem *header_addr;
+
+ enum queue_direction direction;
+ enum ena_admin_placement_policy_type mem_queue_type;
+
+ u32 msix_vector;
+ struct ena_com_tx_meta cached_tx_meta;
+
+ u16 q_depth;
+ u16 qid;
+
+ u16 idx;
+ u16 tail;
+ u16 next_to_comp;
+ u8 phase;
+ u8 desc_entry_size;
+ u8 dma_addr_bits;
+} ____cacheline_aligned;
+
+struct ena_com_admin_cq {
+ struct ena_admin_acq_entry *entries;
+ ena_mem_handle_t mem_handle;
+ dma_addr_t dma_addr;
+
+ u16 head;
+ u8 phase;
+};
+
+struct ena_com_admin_sq {
+ struct ena_admin_aq_entry *entries;
+ ena_mem_handle_t mem_handle;
+ dma_addr_t dma_addr;
+
+ u32 __iomem *db_addr;
+
+ u16 head;
+ u16 tail;
+ u8 phase;
+
+};
+
+struct ena_com_stats_admin {
+ u32 aborted_cmd;
+ u32 submitted_cmd;
+ u32 completed_cmd;
+ u32 out_of_space;
+ u32 no_completion;
+};
+
+struct ena_com_admin_queue {
+ void *q_dmadev;
+ ena_spinlock_t q_lock; /* spinlock for the admin queue */
+ struct ena_comp_ctx *comp_ctx;
+ u16 q_depth;
+ struct ena_com_admin_cq cq;
+ struct ena_com_admin_sq sq;
+
+ /* Indicate if the admin queue should poll for completion */
+ bool polling;
+
+ u16 curr_cmd_id;
+
+ /* Indicate that the ena was initialized and can
+ * process new admin commands
+ */
+ bool running_state;
+
+ /* Count the number of outstanding admin commands */
+ ena_atomic32_t outstanding_cmds;
+
+ struct ena_com_stats_admin stats;
+};
+
+struct ena_aenq_handlers;
+
+struct ena_com_aenq {
+ u16 head;
+ u8 phase;
+ struct ena_admin_aenq_entry *entries;
+ dma_addr_t dma_addr;
+ ena_mem_handle_t mem_handle;
+ u16 q_depth;
+ struct ena_aenq_handlers *aenq_handlers;
+};
+
+struct ena_com_mmio_read {
+ struct ena_admin_ena_mmio_req_read_less_resp *read_resp;
+ dma_addr_t read_resp_dma_addr;
+ ena_mem_handle_t read_resp_mem_handle;
+ u16 seq_num;
+ /* spin lock to ensure a single outstanding read */
+ ena_spinlock_t lock;
+};
+
+struct ena_rss {
+ /* Indirect table */
+ u16 *host_rss_ind_tbl;
+ struct ena_admin_rss_ind_table_entry *rss_ind_tbl;
+ dma_addr_t rss_ind_tbl_dma_addr;
+ ena_mem_handle_t rss_ind_tbl_mem_handle;
+ u16 tbl_log_size;
+
+ /* Hash key */
+ enum ena_admin_hash_functions hash_func;
+ struct ena_admin_feature_rss_flow_hash_control *hash_key;
+ dma_addr_t hash_key_dma_addr;
+ ena_mem_handle_t hash_key_mem_handle;
+ u32 hash_init_val;
+
+ /* Flow Control */
+ struct ena_admin_feature_rss_hash_control *hash_ctrl;
+ dma_addr_t hash_ctrl_dma_addr;
+ ena_mem_handle_t hash_ctrl_mem_handle;
+
+};
+
+/* Each ena_dev is a PCI function. */
+struct ena_com_dev {
+ struct ena_com_admin_queue admin_queue;
+ struct ena_com_aenq aenq;
+ struct ena_com_io_cq io_cq_queues[ENA_TOTAL_NUM_QUEUES];
+ struct ena_com_io_sq io_sq_queues[ENA_TOTAL_NUM_QUEUES];
+ struct ena_regs_ena_registers __iomem *reg_bar;
+ void __iomem *mem_bar;
+ void *dmadev;
+
+ enum ena_admin_placement_policy_type tx_mem_queue_type;
+
+ u16 stats_func; /* Selected function for extended statistic dump */
+ u16 stats_queue; /* Selected queue for extended statistic dump */
+
+ struct ena_com_mmio_read mmio_read;
+
+ struct ena_rss rss;
+ u32 supported_features;
+ u32 dma_addr_bits;
+};
+
+struct ena_com_dev_get_features_ctx {
+ struct ena_admin_queue_feature_desc max_queues;
+ struct ena_admin_device_attr_feature_desc dev_attr;
+ struct ena_admin_feature_aenq_desc aenq;
+ struct ena_admin_feature_offload_desc offload;
+};
+
+typedef void (*ena_aenq_handler)(void *data,
+ struct ena_admin_aenq_entry *aenq_e);
+
+/* Holds aenq handlers. Indexed by AENQ event group */
+struct ena_aenq_handlers {
+ ena_aenq_handler handlers[ENA_MAX_HANDLERS];
+ ena_aenq_handler unimplemented_handler;
+};
+
+/*****************************************************************************/
+/*****************************************************************************/
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/* ena_com_mmio_reg_read_request_init - Init the mmio reg read mechanism
+ * @ena_dev: ENA communication layer struct
+ *
+ * Initialize the register read mechanism.
+ *
+ * @note: This method must be the first stage in the initialization sequence.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev);
+
+/* ena_com_mmio_reg_read_request_write_dev_addr - Write the mmio reg read return
+ * value physical address.
+ * @ena_dev: ENA communication layer struct
+ */
+void ena_com_mmio_reg_read_request_write_dev_addr(struct ena_com_dev *ena_dev);
+
+/* ena_com_mmio_reg_read_request_destroy - Destroy the mmio reg read mechanism
+ * @ena_dev: ENA communication layer struct
+ */
+void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev);
+
+/* ena_com_admin_init - Init the admin and the async queues
+ * @ena_dev: ENA communication layer struct
+ * @aenq_handlers: Those handlers to be called upon event.
+ * @init_spinlock: Indicate if this method should init the admin spinlock or
+ * the spinlock was init before (for example, in a case of FLR).
+ *
+ * Initialize the admin submission and completion queues.
+ * Initialize the asynchronous events notification queues.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_admin_init(struct ena_com_dev *ena_dev,
+ struct ena_aenq_handlers *aenq_handlers,
+ bool init_spinlock);
+
+/* ena_com_admin_destroy - Destroy the admin and the async events queues.
+ * @ena_dev: ENA communication layer struct
+ *
+ * @note: Before calling this method, the caller must validate that the device
+ * won't send any additional admin completions/aenq.
+ * To achieve that, a FLR is recommended.
+ */
+void ena_com_admin_destroy(struct ena_com_dev *ena_dev);
+
+/* ena_com_dev_reset - Perform device FLR to the device.
+ * @ena_dev: ENA communication layer struct
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_dev_reset(struct ena_com_dev *ena_dev);
+
+/* ena_com_create_io_queue - Create io queue.
+ * @ena_dev: ENA communication layer struct
+ * @qid - the caller virtual queue id.
+ * @direction - the queue direction (Rx/Tx)
+ * @mem_queue_type - Indicate if this queue is LLQ or regular queue
+ * (relevant only for Tx queue)
+ * @msix_vector - MSI-X vector
+ * @queue_size - queue size
+ *
+ * Create the submission and the completion queues for queue id - qid.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_create_io_queue(struct ena_com_dev *ena_dev, u16 qid,
+ enum queue_direction direction,
+ enum ena_admin_placement_policy_type mem_queue_type,
+ u32 msix_vector,
+ u16 queue_size);
+
+/* ena_com_admin_destroy - Destroy IO queue with the queue id - qid.
+ * @ena_dev: ENA communication layer struct
+ */
+void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid);
+
+/* ena_com_get_io_handlers - Return the io queue handlers
+ * @ena_dev: ENA communication layer struct
+ * @qid - the caller virtual queue id.
+ * @io_sq - IO submission queue handler
+ * @io_cq - IO completion queue handler.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_get_io_handlers(struct ena_com_dev *ena_dev, u16 qid,
+ struct ena_com_io_sq **io_sq,
+ struct ena_com_io_cq **io_cq);
+
+/* ena_com_admin_aenq_enable - ENAble asynchronous event notifications
+ * @ena_dev: ENA communication layer struct
+ *
+ * After this method, aenq event can be received via AENQ.
+ */
+void ena_com_admin_aenq_enable(struct ena_com_dev *ena_dev);
+
+/* ena_com_set_admin_running_state - Set the state of the admin queue
+ * @ena_dev: ENA communication layer struct
+ *
+ * Change the state of the admin queue (enable/disable)
+ */
+void ena_com_set_admin_running_state(struct ena_com_dev *ena_dev, bool state);
+
+/* ena_com_get_admin_running_state - Get the admin queue state
+ * @ena_dev: ENA communication layer struct
+ *
+ * Retrieve the state of the admin queue (enable/disable)
+ *
+ * @return - current polling mode (enable/disable)
+ */
+bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev);
+
+/* ena_com_set_admin_polling_mode - Set the admin completion queue polling mode
+ * @ena_dev: ENA communication layer struct
+ * @polling: ENAble/Disable polling mode
+ *
+ * Set the admin completion mode.
+ */
+void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling);
+
+/* ena_com_set_admin_polling_mode - Get the admin completion queue polling mode
+ * @ena_dev: ENA communication layer struct
+ *
+ * Get the admin completion mode.
+ * If polling mode is on, ena_com_execute_admin_command will perform a
+ * polling on the admin completion queue for the commands completion,
+ * otherwise it will wait on wait event.
+ *
+ * @return state
+ */
+bool ena_com_get_ena_admin_polling_mode(struct ena_com_dev *ena_dev);
+
+/* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler
+ * @ena_dev: ENA communication layer struct
+ *
+ * This method go over the admin completion queue and wake up all the pending
+ * threads that wait on the commands wait event.
+ *
+ * @note: Should be called after MSI-X interrupt.
+ */
+void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev);
+
+/* ena_com_aenq_intr_handler - AENQ interrupt handler
+ * @ena_dev: ENA communication layer struct
+ *
+ * This method go over the async event notification queue and call the proper
+ * aenq handler.
+ */
+void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data);
+
+/* ena_com_abort_admin_commands - Abort all the outstanding admin commands.
+ * @ena_dev: ENA communication layer struct
+ *
+ * This method aborts all the outstanding admin commands.
+ * The called should then call ena_com_wait_for_abort_completion to make sure
+ * all the commands were completed.
+ */
+void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev);
+
+/* ena_com_wait_for_abort_completion - Wait for admin commands abort.
+ * @ena_dev: ENA communication layer struct
+ *
+ * This method wait until all the outstanding admin commands will be completed.
+ */
+void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev);
+
+/* ena_com_validate_version - Validate the device parameters
+ * @ena_dev: ENA communication layer struct
+ *
+ * This method validate the device parameters are the same as the saved
+ * parameters in ena_dev.
+ * This method is useful after device reset, to validate the device mac address
+ * and the device offloads are the same as before the reset.
+ *
+ * @return - 0 on success negative value otherwise.
+ */
+int ena_com_validate_version(struct ena_com_dev *ena_dev);
+
+/* ena_com_get_link_params - Retrieve physical link parameters.
+ * @ena_dev: ENA communication layer struct
+ * @resp: Link parameters
+ *
+ * Retrieve the physical link parameters,
+ * like speed, auto-negotiation and full duplex support.
+ *
+ * @return - 0 on Success negative value otherwise.
+ */
+int ena_com_get_link_params(struct ena_com_dev *ena_dev,
+ struct ena_admin_get_feat_resp *resp);
+
+/* ena_com_get_dma_width - Retrieve physical dma address width the device
+ * supports.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Retrieve the maximum physical address bits the device can handle.
+ *
+ * @return: > 0 on Success and negative value otherwise.
+ */
+int ena_com_get_dma_width(struct ena_com_dev *ena_dev);
+
+/* ena_com_set_interrupt_moderation - Config interrupt moderation.
+ * @ena_dev: ENA communication layer struct
+ * @qid: the caller virtual queue id.
+ * @enable: enable/disable interrupt moderation
+ * @count: maximum packets between interrupts
+ * @internal: maximum time between interrupts (value in us)
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_set_interrupt_moderation(struct ena_com_dev *ena_dev, int qid,
+ bool enable, u16 count, u16 interval);
+
+/* ena_com_set_aenq_config - Set aenq groups configurations
+ * @ena_dev: ENA communication layer struct
+ * @groups flag: bit fields flags of enum ena_admin_aenq_group.
+ *
+ * Configure which aenq event group the driver would like to receive.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_set_aenq_config(struct ena_com_dev *ena_dev, u32 groups_flag);
+
+/* ena_com_get_dev_attr_feat - Get device features
+ * @ena_dev: ENA communication layer struct
+ * @get_feat_ctx: returned context that contain the get features.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
+ struct ena_com_dev_get_features_ctx *get_feat_ctx);
+
+/* ena_com_get_dev_basic_stats - Get device basic statistics
+ * @ena_dev: ENA communication layer struct
+ * @stats: stats return value
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev,
+ struct ena_admin_basic_stats *stats);
+
+/* ena_com_set_dev_mtu - Configure the device mtu.
+ * @ena_dev: ENA communication layer struct
+ * @mtu: mtu value
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_set_dev_mtu(struct ena_com_dev *ena_dev, int mtu);
+
+/* ena_com_get_offload_settings - Retrieve the device offloads capabilities
+ * @ena_dev: ENA communication layer struct
+ * @offlad: offload return value
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_get_offload_settings(struct ena_com_dev *ena_dev,
+ struct ena_admin_feature_offload_desc *offload);
+
+/* ena_com_rss_init - Init RSS
+ * @ena_dev: ENA communication layer struct
+ * @log_size: indirection log size
+ *
+ * Allocate RSS/RFS resources.
+ * The caller then can configure rss using ena_com_set_hash_function,
+ * ena_com_set_hash_ctrl and ena_com_indirect_table_set.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size);
+
+/* ena_com_rss_destroy - Destroy rss
+ * @ena_dev: ENA communication layer struct
+ *
+ * Free all the RSS/RFS resources.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_rss_destroy(struct ena_com_dev *ena_dev);
+
+/* ena_com_fill_hash_function - Fill RSS hash function
+ * @ena_dev: ENA communication layer struct
+ * @func: The hash function (Toeplitz or crc)
+ * @key: Hash key (for toeplitz hash)
+ * @key_len: key length (max length 10 DW)
+ * @init_val: initial value for the hash function
+ *
+ * Fill the ena_dev resources with the desire hash function, hash key, key_len
+ * and key initial value (if needed by the hash function).
+ * To flush the key into the device the caller should call
+ * ena_com_set_hash_function.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_fill_hash_function(struct ena_com_dev *ena_dev,
+ enum ena_admin_hash_functions func,
+ const u8 *key, u16 key_len, u32 init_val);
+
+/* ena_com_set_hash_function - Flush the hash function and it dependencies to
+ * the device.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Flush the hash function and it dependencies (key, key length and
+ * initial value) if needed.
+ *
+ * @note: Prior to this method the caller should call ena_com_fill_hash_function
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_set_hash_function(struct ena_com_dev *ena_dev);
+
+/* ena_com_get_hash_function - Retrieve the hash function and the hash key
+ * from the device.
+ * @ena_dev: ENA communication layer struct
+ * @func: hash function
+ * @key: hash key
+ *
+ * Retrieve the hash function and the hash key from the device.
+ *
+ * @note: If the caller called ena_com_fill_hash_function but didn't flash
+ * it to the device, the new configuration will be lost.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_get_hash_function(struct ena_com_dev *ena_dev,
+ enum ena_admin_hash_functions *func,
+ u8 *key);
+
+/* ena_com_fill_hash_ctrl - Fill RSS hash control
+ * @ena_dev: ENA communication layer struct.
+ * @proto: The protocol to configure.
+ * @hash_fields: bit mask of ena_admin_flow_hash_fields
+ *
+ * Fill the ena_dev resources with the desire hash control (the ethernet
+ * fields that take part of the hash) for a specific protocol.
+ * To flush the hash control to the device, the caller should call
+ * ena_com_set_hash_ctrl.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_fill_hash_ctrl(struct ena_com_dev *ena_dev,
+ enum ena_admin_flow_hash_proto proto,
+ u16 hash_fields);
+
+/* ena_com_set_hash_ctrl - Flush the hash control resources to the device.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Flush the hash control (the ethernet fields that take part of the hash)
+ *
+ * @note: Prior to this method the caller should call ena_com_fill_hash_ctrl.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev);
+
+/* ena_com_get_hash_ctrl - Retrieve the hash control from the device.
+ * @ena_dev: ENA communication layer struct
+ * @proto: The protocol to retrieve.
+ * @fields: bit mask of ena_admin_flow_hash_fields.
+ *
+ * Retrieve the hash control from the device.
+ *
+ * @note, If the caller called ena_com_fill_hash_ctrl but didn't flash
+ * it to the device, the new configuration will be lost.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_get_hash_ctrl(struct ena_com_dev *ena_dev,
+ enum ena_admin_flow_hash_proto proto,
+ u16 *fields);
+
+/* ena_com_set_default_hash_ctrl - Set the hash control to a default
+ * configuration.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Fill the ena_dev resources with the default hash control configuration.
+ * To flush the hash control to the device, the caller should call
+ * ena_com_set_hash_ctrl.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_set_default_hash_ctrl(struct ena_com_dev *ena_dev);
+
+/* ena_com_indirect_table_fill_entry - Fill a single entry in the RSS
+ * indirection table
+ * @ena_dev: ENA communication layer struct.
+ * @entry_idx - indirection table entry.
+ * @entry_value - redirection value
+ *
+ * Fill a single entry of the RSS indirection table in the ena_dev resources.
+ * To flush the indirection table to the device, the called should call
+ * ena_com_indirect_table_set.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_indirect_table_fill_entry(struct ena_com_dev *ena_dev,
+ u16 entry_idx, u16 entry_value);
+
+/* ena_com_indirect_table_set - Flush the indirection table to the device.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Flush the indirection hash control to the device.
+ * Prior to this method the caller should call ena_com_indirect_table_fill_entry
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_indirect_table_set(struct ena_com_dev *ena_dev);
+
+/* ena_com_indirect_table_get - Retrieve the indirection table from the device.
+ * @ena_dev: ENA communication layer struct
+ * @ind_tbl: indirection table
+ *
+ * Retrieve the RSS indirection table from the device.
+ *
+ * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flash
+ * it to the device, the new configuration will be lost.
+ *
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl);
+
+/* ena_com_create_io_cq - Create io completion queue.
+ * @ena_dev: ENA communication layer struct
+ * @io_cq - io completion queue handler
+
+ * Create IO completion queue.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_create_io_cq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_cq *io_cq);
+
+/* ena_com_destroy_io_cq - Destroy io completion queue.
+ * @ena_dev: ENA communication layer struct
+ * @io_cq - io completion queue handler
+
+ * Destroy IO completion queue.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev,
+ struct ena_com_io_cq *io_cq);
+
+/* ena_com_execute_admin_command - Execute admin command
+ * @admin_queue: admin queue.
+ * @cmd: the admin command to execute.
+ * @cmd_size: the command size.
+ * @cmd_completion: command completion return value.
+ * @cmd_comp_size: command completion size.
+
+ * Submit an admin command and then wait until the device will return a
+ * completion.
+ * The completion will be copyed into cmd_comp.
+ *
+ * @return - 0 on success, negative value on failure.
+ */
+int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue,
+ struct ena_admin_aq_entry *cmd,
+ size_t cmd_size,
+ struct ena_admin_acq_entry *cmd_comp,
+ size_t cmd_comp_size);
+
+int ena_com_get_dev_extended_stats(struct ena_com_dev *ena_dev, char *buff,
+ u32 len);
+
+int ena_com_extended_stats_set_func_queue(struct ena_com_dev *ena_dev,
+ u32 funct_queue);
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+#endif /* !(ENA_COM) */
diff --git a/drivers/net/ena/base/ena_defs/ena_admin_defs.h b/drivers/net/ena/base/ena_defs/ena_admin_defs.h
new file mode 100644
index 0000000..340c613
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_admin_defs.h
@@ -0,0 +1,1660 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_ADMIN_H_
+#define _ENA_ADMIN_H_
+
+/* admin commands opcodes */
+enum ena_admin_aq_opcode {
+ /* create submission queue */
+ ENA_ADMIN_CREATE_SQ = 1,
+
+ /* destroy submission queue */
+ ENA_ADMIN_DESTROY_SQ = 2,
+
+ /* create completion queue */
+ ENA_ADMIN_CREATE_CQ = 3,
+
+ /* destroy completion queue */
+ ENA_ADMIN_DESTROY_CQ = 4,
+
+ /* get capabilities of particular feature */
+ ENA_ADMIN_GET_FEATURE = 8,
+
+ /* get capabilities of particular feature */
+ ENA_ADMIN_SET_FEATURE = 9,
+
+ /* get statistics */
+ ENA_ADMIN_GET_STATS = 11,
+};
+
+/* privileged amdin commands opcodes */
+enum ena_admin_aq_opcode_privileged {
+ /* get device capabilities */
+ ENA_ADMIN_IDENTIFY = 48,
+
+ /* configure device */
+ ENA_ADMIN_CONFIGURE_PF_DEVICE = 49,
+
+ /* setup SRIOV PCIe Virtual Function capabilities */
+ ENA_ADMIN_SETUP_VF = 50,
+
+ /* load firmware to the controller */
+ ENA_ADMIN_LOAD_FIRMWARE = 52,
+
+ /* commit previously loaded firmare */
+ ENA_ADMIN_COMMIT_FIRMWARE = 53,
+
+ /* quiesce virtual function */
+ ENA_ADMIN_QUIESCE_VF = 54,
+
+ /* load virtual function from migrates context */
+ ENA_ADMIN_MIGRATE_VF = 55,
+};
+
+/* admin command completion status codes */
+enum ena_admin_aq_completion_status {
+ /* Request completed successfully */
+ ENA_ADMIN_SUCCESS = 0,
+
+ /* no resources to satisfy request */
+ ENA_ADMIN_RESOURCE_ALLOCATION_FAILURE = 1,
+
+ /* Bad opcode in request descriptor */
+ ENA_ADMIN_BAD_OPCODE = 2,
+
+ /* Unsupported opcode in request descriptor */
+ ENA_ADMIN_UNSUPPORTED_OPCODE = 3,
+
+ /* Wrong request format */
+ ENA_ADMIN_MALFORMED_REQUEST = 4,
+
+ /* One of parameters is not valid. Provided in ACQ entry
+ * extended_status
+ */
+ ENA_ADMIN_ILLEGAL_PARAMETER = 5,
+
+ /* unexpected error */
+ ENA_ADMIN_UNKNOWN_ERROR = 6,
+};
+
+/* get/set feature subcommands opcodes */
+enum ena_admin_aq_feature_id {
+ /* list of all supported attributes/capabilities in the ENA */
+ ENA_ADMIN_DEVICE_ATTRIBUTES = 1,
+
+ /* max number of supported queues per for every queues type */
+ ENA_ADMIN_MAX_QUEUES_NUM = 2,
+
+ /* low latency queues capabilities (max entry size, depth) */
+ ENA_ADMIN_LLQ_CONFIG = 3,
+
+ /* power management capabilities */
+ ENA_ADMIN_POWER_MANAGEMENT_CONFIG = 4,
+
+ /* MAC address filters support, multicast, broadcast, and
+ * promiscuous
+ */
+ ENA_ADMIN_MAC_FILTERS_CONFIG = 5,
+
+ /* VLAN membership, frame format, etc. */
+ ENA_ADMIN_VLAN_CONFIG = 6,
+
+ /* Available size for various on-chip memory resources, accessible
+ * by the driver
+ */
+ ENA_ADMIN_ON_DEVICE_MEMORY_CONFIG = 7,
+
+ /* Receive Side Scaling (RSS) function */
+ ENA_ADMIN_RSS_HASH_FUNCTION = 10,
+
+ /* stateless TCP/UDP/IP offload capabilities. */
+ ENA_ADMIN_STATELESS_OFFLOAD_CONFIG = 11,
+
+ /* Multiple tuples flow table configuration */
+ ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG = 12,
+
+ /* max MTU, current MTU */
+ ENA_ADMIN_MTU = 14,
+
+ /* Receive Side Scaling (RSS) hash input */
+ ENA_ADMIN_RSS_HASH_INPUT = 18,
+
+ /* overlay tunnels configuration */
+ ENA_ADMIN_TUNNEL_CONFIG = 19,
+
+ /* interrupt moderation: count,interval,adaptive */
+ ENA_ADMIN_INTERRUPT_MODERATION = 20,
+
+ /* 1588v2 and Timing configuration */
+ ENA_ADMIN_1588_CONFIG = 21,
+
+ /* Packet Header format templates configuration for input and
+ * output parsers
+ */
+ ENA_ADMIN_PKT_HEADER_TEMPLATES_CONFIG = 23,
+
+ /* AENQ configuration */
+ ENA_ADMIN_AENQ_CONFIG = 26,
+
+ /* Link configuration */
+ ENA_ADMIN_LINK_CONFIG = 27,
+
+ /* Host attributes configuration */
+ ENA_ADMIN_HOST_ATTR_CONFIG = 28,
+
+ /* Number of valid opcodes */
+ ENA_ADMIN_FEATURES_OPCODE_NUM = 32,
+};
+
+/* descriptors and headers placement */
+enum ena_admin_placement_policy_type {
+ /* descriptors and headers are in OS memory */
+ ENA_ADMIN_PLACEMENT_POLICY_HOST = 1,
+
+ /* descriptors and headers in device memory (a.k.a Low Latency
+ * Queue)
+ */
+ ENA_ADMIN_PLACEMENT_POLICY_DEV = 3,
+};
+
+/* link speeds */
+enum ena_admin_link_types {
+ ENA_ADMIN_LINK_SPEED_1G = 0x1,
+
+ ENA_ADMIN_LINK_SPEED_2_HALF_G = 0x2,
+
+ ENA_ADMIN_LINK_SPEED_5G = 0x4,
+
+ ENA_ADMIN_LINK_SPEED_10G = 0x8,
+
+ ENA_ADMIN_LINK_SPEED_25G = 0x10,
+
+ ENA_ADMIN_LINK_SPEED_40G = 0x20,
+
+ ENA_ADMIN_LINK_SPEED_50G = 0x40,
+
+ ENA_ADMIN_LINK_SPEED_100G = 0x80,
+
+ ENA_ADMIN_LINK_SPEED_200G = 0x100,
+
+ ENA_ADMIN_LINK_SPEED_400G = 0x200,
+};
+
+/* completion queue update policy */
+enum ena_admin_completion_policy_type {
+ /* cqe for each sq descriptor */
+ ENA_ADMIN_COMPLETION_POLICY_DESC = 0,
+
+ /* cqe upon request in sq descriptor */
+ ENA_ADMIN_COMPLETION_POLICY_DESC_ON_DEMAND = 1,
+
+ /* current queue head pointer is updated in OS memory upon sq
+ * descriptor request
+ */
+ ENA_ADMIN_COMPLETION_POLICY_HEAD_ON_DEMAND = 2,
+
+ /* current queue head pointer is updated in OS memory for each sq
+ * descriptor
+ */
+ ENA_ADMIN_COMPLETION_POLICY_HEAD = 3,
+};
+
+/* type of get statistics command */
+enum ena_admin_get_stats_type {
+ /* Basic statistics */
+ ENA_ADMIN_GET_STATS_TYPE_BASIC = 0,
+
+ /* Extended statistics */
+ ENA_ADMIN_GET_STATS_TYPE_EXTENDED = 1,
+};
+
+/* scope of get statistics command */
+enum ena_admin_get_stats_scope {
+ ENA_ADMIN_SPECIFIC_QUEUE = 0,
+
+ ENA_ADMIN_ETH_TRAFFIC = 1,
+};
+
+/* ENA Admin Queue (AQ) common descriptor */
+struct ena_admin_aq_common_desc {
+ /* word 0 : */
+ /* command identificator to associate it with the completion
+ * 11:0 : command_id
+ * 15:12 : reserved12
+ */
+ uint16_t command_id;
+
+ /* as appears in ena_aq_opcode */
+ uint8_t opcode;
+
+ /* 0 : phase
+ * 1 : ctrl_data - control buffer address valid
+ * 2 : ctrl_data_indirect - control buffer address
+ * points to list of pages with addresses of control
+ * buffers
+ * 7:3 : reserved3
+ */
+ uint8_t flags;
+};
+
+/* used in ena_aq_entry. Can point directly to control data, or to a page
+ * list chunk. Used also at the end of indirect mode page list chunks, for
+ * chaining.
+ */
+struct ena_admin_ctrl_buff_info {
+ /* word 0 : indicates length of the buffer pointed by
+ * control_buffer_address.
+ */
+ uint32_t length;
+
+ /* words 1:2 : points to control buffer (direct or indirect) */
+ struct ena_common_mem_addr address;
+};
+
+/* submission queue full identification */
+struct ena_admin_sq {
+ /* word 0 : */
+ /* queue id */
+ uint16_t sq_idx;
+
+ /* 4:0 : reserved
+ * 7:5 : sq_direction - 0x1 - Tx; 0x2 - Rx
+ */
+ uint8_t sq_identity;
+
+ uint8_t reserved1;
+};
+
+/* AQ entry format */
+struct ena_admin_aq_entry {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* words 1:3 : */
+ union {
+ /* command specific inline data */
+ uint32_t inline_data_w1[3];
+
+ /* words 1:3 : points to control buffer (direct or
+ * indirect, chained if needed)
+ */
+ struct ena_admin_ctrl_buff_info control_buffer;
+ } u;
+
+ /* command specific inline data */
+ uint32_t inline_data_w4[12];
+};
+
+/* ENA Admin Completion Queue (ACQ) common descriptor */
+struct ena_admin_acq_common_desc {
+ /* word 0 : */
+ /* command identifier to associate it with the aq descriptor
+ * 11:0 : command_id
+ * 15:12 : reserved12
+ */
+ uint16_t command;
+
+ /* status of request execution */
+ uint8_t status;
+
+ /* 0 : phase
+ * 7:1 : reserved1
+ */
+ uint8_t flags;
+
+ /* word 1 : */
+ /* provides additional info */
+ uint16_t extended_status;
+
+ /* submission queue head index, serves as a hint what AQ entries can
+ * be revoked
+ */
+ uint16_t sq_head_indx;
+};
+
+/* ACQ entry format */
+struct ena_admin_acq_entry {
+ /* words 0:1 : */
+ struct ena_admin_acq_common_desc acq_common_descriptor;
+
+ /* response type specific data */
+ uint32_t response_specific_data[14];
+};
+
+/* ENA AQ Create Submission Queue command. Placed in control buffer pointed
+ * by AQ entry
+ */
+struct ena_admin_aq_create_sq_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* word 1 : */
+ /* 4:0 : reserved0_w1
+ * 7:5 : sq_direction - 0x1 - Tx, 0x2 - Rx
+ */
+ uint8_t sq_identity;
+
+ uint8_t reserved8_w1;
+
+ /* 3:0 : placement_policy - Describing where the SQ
+ * descriptor ring and the SQ packet headers reside:
+ * 0x1 - descriptors and headers are in OS memory,
+ * 0x3 - descriptors and headers in device memory
+ * (a.k.a Low Latency Queue)
+ * 6:4 : completion_policy - Describing what policy
+ * to use for generation completion entry (cqe) in
+ * the CQ associated with this SQ: 0x0 - cqe for each
+ * sq descriptor, 0x1 - cqe upon request in sq
+ * descriptor, 0x2 - current queue head pointer is
+ * updated in OS memory upon sq descriptor request
+ * 0x3 - current queue head pointer is updated in OS
+ * memory for each sq descriptor
+ * 7 : reserved15_w1
+ */
+ uint8_t sq_caps_2;
+
+ /* 0 : is_physically_contiguous - Described if the
+ * queue ring memory is allocated in physical
+ * contiguous pages or split.
+ * 7:1 : reserved17_w1
+ */
+ uint8_t sq_caps_3;
+
+ /* word 2 : */
+ /* associated completion queue id. This CQ must be created prior to
+ * SQ creation
+ */
+ uint16_t cq_idx;
+
+ /* submission queue depth in entries */
+ uint16_t sq_depth;
+
+ /* words 3:4 : SQ physical base address in OS memory. This field
+ * should not be used for Low Latency queues. Has to be page
+ * aligned.
+ */
+ struct ena_common_mem_addr sq_ba;
+
+ /* words 5:6 : specifies queue head writeback location in OS
+ * memory. Valid if completion_policy is set to
+ * completion_policy_head_on_demand or completion_policy_head. Has
+ * to be cache aligned
+ */
+ struct ena_common_mem_addr sq_head_writeback;
+
+ /* word 7 : reserved word */
+ uint32_t reserved0_w7;
+
+ /* word 8 : reserved word */
+ uint32_t reserved0_w8;
+};
+
+/* submission queue direction */
+enum ena_admin_sq_direction {
+ ENA_ADMIN_SQ_DIRECTION_TX = 1,
+
+ ENA_ADMIN_SQ_DIRECTION_RX = 2,
+};
+
+/* ENA Response for Create SQ Command. Appears in ACQ entry as
+ * response_specific_data
+ */
+struct ena_admin_acq_create_sq_resp_desc {
+ /* words 0:1 : Common Admin Queue completion descriptor */
+ struct ena_admin_acq_common_desc acq_common_desc;
+
+ /* word 2 : */
+ /* sq identifier */
+ uint16_t sq_idx;
+
+ uint16_t reserved;
+
+ /* word 3 : queue doorbell address as and offset to PCIe MMIO REG
+ * BAR
+ */
+ uint32_t sq_doorbell_offset;
+
+ /* word 4 : low latency queue ring base address as an offset to
+ * PCIe MMIO LLQ_MEM BAR
+ */
+ uint32_t llq_descriptors_offset;
+
+ /* word 5 : low latency queue headers' memory as an offset to PCIe
+ * MMIO LLQ_MEM BAR
+ */
+ uint32_t llq_headers_offset;
+};
+
+/* ENA AQ Destroy Submission Queue command. Placed in control buffer
+ * pointed by AQ entry
+ */
+struct ena_admin_aq_destroy_sq_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* words 1 : */
+ struct ena_admin_sq sq;
+};
+
+/* ENA Response for Destroy SQ Command. Appears in ACQ entry as
+ * response_specific_data
+ */
+struct ena_admin_acq_destroy_sq_resp_desc {
+ /* words 0:1 : Common Admin Queue completion descriptor */
+ struct ena_admin_acq_common_desc acq_common_desc;
+};
+
+/* ENA AQ Create Completion Queue command */
+struct ena_admin_aq_create_cq_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* word 1 : */
+ /* 4:0 : reserved5
+ * 5 : interrupt_mode_enabled - if set, cq operates
+ * in interrupt mode, otherwise - polling
+ * 7:6 : reserved6
+ */
+ uint8_t cq_caps_1;
+
+ /* 4:0 : cq_entry_size_words - size of CQ entry in
+ * 32-bit words, valid values: 4, 8.
+ * 7:5 : reserved7
+ */
+ uint8_t cq_caps_2;
+
+ /* completion queue depth in # of entries. must be power of 2 */
+ uint16_t cq_depth;
+
+ /* word 2 : msix vector assigned to this cq */
+ uint32_t msix_vector;
+
+ /* words 3:4 : cq physical base address in OS memory. CQ must be
+ * physically contiguous
+ */
+ struct ena_common_mem_addr cq_ba;
+};
+
+/* ENA Response for Create CQ Command. Appears in ACQ entry as response
+ * specific data
+ */
+struct ena_admin_acq_create_cq_resp_desc {
+ /* words 0:1 : Common Admin Queue completion descriptor */
+ struct ena_admin_acq_common_desc acq_common_desc;
+
+ /* word 2 : */
+ /* cq identifier */
+ uint16_t cq_idx;
+
+ /* actual cq depth in # of entries */
+ uint16_t cq_actual_depth;
+
+ /* word 3 : doorbell address as an offset to PCIe MMIO REG BAR */
+ uint32_t cq_doorbell_offset;
+
+ /* word 4 : completion head doorbell address as an offset to PCIe
+ * MMIO REG BAR
+ */
+ uint32_t cq_head_db_offset;
+
+ /* word 5 : interrupt unmask register address as an offset into
+ * PCIe MMIO REG BAR
+ */
+ uint32_t cq_interrupt_unmask_register;
+
+ /* word 6 : value to be written into interrupt unmask register */
+ uint32_t cq_interrupt_unmask_value;
+
+ /* word 7 : interrupt moderation register address as an offset into
+ * PCIe MMIO REG BAR. 1 usec granularity
+ */
+ uint32_t cq_interrupt_moderation_register;
+};
+
+/* ENA AQ Destroy Completion Queue command. Placed in control buffer
+ * pointed by AQ entry
+ */
+struct ena_admin_aq_destroy_cq_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* word 1 : */
+ /* associated queue id. */
+ uint16_t cq_idx;
+
+ uint16_t reserved1;
+};
+
+/* ENA Response for Destroy CQ Command. Appears in ACQ entry as
+ * response_specific_data
+ */
+struct ena_admin_acq_destroy_cq_resp_desc {
+ /* words 0:1 : Common Admin Queue completion descriptor */
+ struct ena_admin_acq_common_desc acq_common_desc;
+};
+
+/* ENA AQ Get Statistics command. Extended statistics are placed in control
+ * buffer pointed by AQ entry
+ */
+struct ena_admin_aq_get_stats_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* words 1:3 : */
+ union {
+ /* command specific inline data */
+ uint32_t inline_data_w1[3];
+
+ /* words 1:3 : points to control buffer (direct or
+ * indirect, chained if needed)
+ */
+ struct ena_admin_ctrl_buff_info control_buffer;
+ } u;
+
+ /* word 4 : */
+ /* stats type as defined in enum ena_admin_get_stats_type */
+ uint8_t type;
+
+ /* stats scope defined in enum ena_admin_get_stats_scope */
+ uint8_t scope;
+
+ uint16_t reserved3;
+
+ /* word 5 : */
+ /* queue id. used when scope is specific_queue */
+ uint16_t queue_idx;
+
+ /* device id, value 0xFFFF means mine. only privileged device can get
+ * stats of other device
+ */
+ uint16_t device_id;
+};
+
+/* Basic Statistics Command. */
+struct ena_admin_basic_stats {
+ /* word 0 : */
+ uint32_t tx_bytes_low;
+
+ /* word 1 : */
+ uint32_t tx_bytes_high;
+
+ /* word 2 : */
+ uint32_t tx_pkts_low;
+
+ /* word 3 : */
+ uint32_t tx_pkts_high;
+
+ /* word 4 : */
+ uint32_t rx_bytes_low;
+
+ /* word 5 : */
+ uint32_t rx_bytes_high;
+
+ /* word 6 : */
+ uint32_t rx_pkts_low;
+
+ /* word 7 : */
+ uint32_t rx_pkts_high;
+
+ /* word 8 : */
+ uint32_t rx_drops_low;
+
+ /* word 9 : */
+ uint32_t rx_drops_high;
+};
+
+/* ENA Response for Get Statistics Command. Appears in ACQ entry as
+ * response_specific_data
+ */
+struct ena_admin_acq_get_stats_resp {
+ /* words 0:1 : Common Admin Queue completion descriptor */
+ struct ena_admin_acq_common_desc acq_common_desc;
+
+ /* words 2:11 : */
+ struct ena_admin_basic_stats basic_stats;
+};
+
+/* ENA Get/Set Feature common descriptor. Appears as inline word in
+ * ena_aq_entry
+ */
+struct ena_admin_get_set_feature_common_desc {
+ /* word 0 : */
+ /* 1:0 : select - 0x1 - current value; 0x3 - default
+ * value
+ * 7:3 : reserved3
+ */
+ uint8_t flags;
+
+ /* as appears in ena_feature_id */
+ uint8_t feature_id;
+
+ /* reserved16 */
+ uint16_t reserved16;
+};
+
+/* ENA Device Attributes Feature descriptor. */
+struct ena_admin_device_attr_feature_desc {
+ /* word 0 : implementation id */
+ uint32_t impl_id;
+
+ /* word 1 : device version */
+ uint32_t device_version;
+
+ /* word 2 : bit map of which bits are supported value of 1
+ * indicated that this feature is supported and can perform SET/GET
+ * for it
+ */
+ uint32_t supported_features;
+
+ /* word 3 : */
+ uint32_t reserved3;
+
+ /* word 4 : Indicates how many bits are used physical address
+ * access.
+ */
+ uint32_t phys_addr_width;
+
+ /* word 5 : Indicates how many bits are used virtual address access. */
+ uint32_t virt_addr_width;
+
+ /* unicast MAC address (in Network byte order) */
+ uint8_t mac_addr[6];
+
+ uint8_t reserved7[2];
+
+ /* word 8 : Max supported MTU value */
+ uint32_t max_mtu;
+};
+
+/* ENA Max Queues Feature descriptor. */
+struct ena_admin_queue_feature_desc {
+ /* word 0 : Max number of submission queues (including LLQs) */
+ uint32_t max_sq_num;
+
+ /* word 1 : Max submission queue depth */
+ uint32_t max_sq_depth;
+
+ /* word 2 : Max number of completion queues */
+ uint32_t max_cq_num;
+
+ /* word 3 : Max completion queue depth */
+ uint32_t max_cq_depth;
+
+ /* word 4 : Max number of LLQ submission queues */
+ uint32_t max_llq_num;
+
+ /* word 5 : Max submission queue depth of LLQ */
+ uint32_t max_llq_depth;
+
+ /* word 6 : Max header size */
+ uint32_t max_header_size;
+
+ /* word 7 : */
+ /* Maximum Descriptors number, including meta descriptors, allowed
+ * for a single Tx packet
+ */
+ uint16_t max_packet_tx_descs;
+
+ /* Maximum Descriptors number allowed for a single Rx packet */
+ uint16_t max_packet_rx_descs;
+};
+
+/* ENA MTU Set Feature descriptor. */
+struct ena_admin_set_feature_mtu_desc {
+ /* word 0 : mtu size including L2 */
+ uint32_t mtu;
+};
+
+/* ENA host attributes Set Feature descriptor. */
+struct ena_admin_set_feature_host_attr_desc {
+ /* word 0 : driver version */
+ uint32_t driver_version;
+};
+
+/* ENA Interrupt Moderation metrics. */
+struct ena_admin_intr_moder_metrics_desc {
+ /* word 0 : */
+ uint16_t count;
+
+ /* interval in us */
+ uint16_t interval;
+};
+
+/* ENA Link Get Feature descriptor. */
+struct ena_admin_get_feature_link_desc {
+ /* word 0 : Link speed in Mb */
+ uint32_t speed;
+
+ /* word 1 : supported speeds (bit field of enum ena_admin_link
+ * types)
+ */
+ uint32_t supported;
+
+ /* word 2 : */
+ /* 0 : autoneg - auto negotiation
+ * 1 : duplex - Full Duplex
+ * 31:2 : reserved2
+ */
+ uint32_t flags;
+};
+
+/* ENA Interrupt Moderation Set Feature descriptor. */
+struct ena_admin_set_feature_intr_moder_desc {
+ /* word 0 : */
+ /* associated queue id. */
+ uint16_t cq_idx;
+
+ /* 2:0 : sq_direction - 0x1 - Tx; 0x2 - Rx */
+ uint8_t queue_identity;
+
+ uint8_t reserved1;
+
+ /* word 1 : */
+ /* 0 : enable
+ * 31:1 : reserved1
+ */
+ uint32_t flags;
+
+ /* words 2 : */
+ struct ena_admin_intr_moder_metrics_desc intr_moder_metrics;
+};
+
+/* ENA AENQ Feature descriptor. */
+struct ena_admin_feature_aenq_desc {
+ /* word 0 : bitmask for AENQ groups the device can report */
+ uint32_t supported_groups;
+
+ /* word 1 : bitmask for AENQ groups to report */
+ uint32_t enabled_groups;
+};
+
+/* ENA Stateless Offload Feature descriptor. */
+struct ena_admin_feature_offload_desc {
+ /* word 0 : */
+ /* Trasmit side stateless offload
+ * 0 : TX_L3_csum_ipv4 - IPv4 checksum
+ * 1 : TX_L4_ipv4_csum_part - TCP/UDP over IPv4
+ * checksum, the checksum field should be initialized
+ * with pseudo header checksum
+ * 2 : TX_L4_ipv4_csum_full - TCP/UDP over IPv4
+ * checksum
+ * 3 : TX_L4_ipv6_csum_part - TCP/UDP over IPv6
+ * checksum, the checksum field should be initialized
+ * with pseudo header checksum
+ * 4 : TX_L4_ipv6_csum_full - TCP/UDP over IPv6
+ * checksum
+ * 5 : tso_ipv4 - TCP/IPv4 Segmentation Offloading
+ * 6 : tso_ipv6 - TCP/IPv6 Segmentation Offloading
+ * 7 : tso_ecn - TCP Segmentation with ECN
+ */
+ uint32_t tx;
+
+ /* word 1 : */
+ /* Receive side supported stateless offload
+ * 0 : RX_L3_csum_ipv4 - IPv4 checksum
+ * 1 : RX_L4_ipv4_csum - TCP/UDP/IPv4 checksum
+ * 2 : RX_L4_ipv6_csum - TCP/UDP/IPv6 checksum
+ */
+ uint32_t rx_supported;
+
+ /* word 2 : */
+ /* Receive side enabled stateless offload */
+ uint32_t rx_enabled;
+};
+
+/* hash functions */
+enum ena_admin_hash_functions {
+ /* Toeplitz hash */
+ ENA_ADMIN_TOEPLITZ = 1,
+
+ /* CRC32 hash */
+ ENA_ADMIN_CRC32 = 2,
+};
+
+/* ENA RSS flow hash control buffer structure */
+struct ena_admin_feature_rss_flow_hash_control {
+ /* word 0 : number of valid keys */
+ uint32_t keys_num;
+
+ /* word 1 : */
+ uint32_t reserved;
+
+ /* Toeplitz keys */
+ uint32_t key[10];
+};
+
+/* ENA RSS Flow Hash Function */
+struct ena_admin_feature_rss_flow_hash_function {
+ /* word 0 : */
+ /* supported hash functions
+ * 7:0 : funcs - supported hash functions (bitmask
+ * accroding to ena_admin_hash_functions)
+ */
+ uint32_t supported_func;
+
+ /* word 1 : */
+ /* selected hash func
+ * 7:0 : selected_func - selected hash function
+ * (bitmask accroding to ena_admin_hash_functions)
+ */
+ uint32_t selected_func;
+
+ /* word 2 : initial value */
+ uint32_t init_val;
+};
+
+/* RSS flow hash protocols */
+enum ena_admin_flow_hash_proto {
+ /* tcp/ipv4 */
+ ENA_ADMIN_RSS_TCP4 = 0,
+
+ /* udp/ipv4 */
+ ENA_ADMIN_RSS_UDP4 = 1,
+
+ /* tcp/ipv6 */
+ ENA_ADMIN_RSS_TCP6 = 2,
+
+ /* udp/ipv6 */
+ ENA_ADMIN_RSS_UDP6 = 3,
+
+ /* ipv4 not tcp/udp */
+ ENA_ADMIN_RSS_IP4 = 4,
+
+ /* ipv6 not tcp/udp */
+ ENA_ADMIN_RSS_IP6 = 5,
+
+ /* fragmented ipv4 */
+ ENA_ADMIN_RSS_IP4_FRAG = 6,
+
+ /* not ipv4/6 */
+ ENA_ADMIN_RSS_NOT_IP = 7,
+
+ /* max number of protocols */
+ ENA_ADMIN_RSS_PROTO_NUM = 16,
+};
+
+/* RSS flow hash fields */
+enum ena_admin_flow_hash_fields {
+ /* Ethernet Dest Addr */
+ ENA_ADMIN_RSS_L2_DA = 0,
+
+ /* Ethernet Src Addr */
+ ENA_ADMIN_RSS_L2_SA = 1,
+
+ /* ipv4/6 Dest Addr */
+ ENA_ADMIN_RSS_L3_DA = 2,
+
+ /* ipv4/6 Src Addr */
+ ENA_ADMIN_RSS_L3_SA = 5,
+
+ /* tcp/udp Dest Port */
+ ENA_ADMIN_RSS_L4_DP = 6,
+
+ /* tcp/udp Src Port */
+ ENA_ADMIN_RSS_L4_SP = 7,
+};
+
+/* hash input fields for flow protocol */
+struct ena_admin_proto_input {
+ /* word 0 : */
+ /* flow hash fields (bitwise according to ena_admin_flow_hash_fields) */
+ uint16_t fields;
+
+ /* 0 : inner - for tunneled packet, select the fields
+ * from inner header
+ */
+ uint16_t flags;
+};
+
+/* ENA RSS hash control buffer structure */
+struct ena_admin_feature_rss_hash_control {
+ /* supported input fields */
+ struct ena_admin_proto_input supported_fields[ENA_ADMIN_RSS_PROTO_NUM];
+
+ /* selected input fields */
+ struct ena_admin_proto_input selected_fields[ENA_ADMIN_RSS_PROTO_NUM];
+
+ /* supported input fields for inner header */
+ struct ena_admin_proto_input supported_inner_fields[ENA_ADMIN_RSS_PROTO_NUM];
+
+ /* selected input fields */
+ struct ena_admin_proto_input selected_inner_fields[ENA_ADMIN_RSS_PROTO_NUM];
+};
+
+/* ENA RSS flow hash input */
+struct ena_admin_feature_rss_flow_hash_input {
+ /* word 0 : */
+ /* supported hash input sorting
+ * 1 : L3_sort - support swap L3 addresses if DA
+ * smaller than SA
+ * 2 : L4_sort - support swap L4 ports if DP smaller
+ * SP
+ */
+ uint16_t supported_input_sort;
+
+ /* enabled hash input sorting
+ * 1 : enable_L3_sort - enable swap L3 addresses if
+ * DA smaller than SA
+ * 2 : enable_L4_sort - enable swap L4 ports if DP
+ * smaller than SP
+ */
+ uint16_t enabled_input_sort;
+};
+
+/* ENA RSS indirection table entry */
+struct ena_admin_rss_ind_table_entry {
+ /* word 0 : */
+ /* cq identifier */
+ uint16_t cq_idx;
+
+ uint16_t reserved;
+};
+
+/* ENA RSS indirection table */
+struct ena_admin_feature_rss_ind_table {
+ /* word 0 : */
+ /* min supported table size (2^min_size) */
+ uint16_t min_size;
+
+ /* max supported table size (2^max_size) */
+ uint16_t max_size;
+
+ /* word 1 : */
+ /* table size (2^size) */
+ uint16_t size;
+
+ uint16_t reserved;
+
+ /* word 2 : index of the inline entry. 0xFFFFFFFF means invalid */
+ uint32_t inline_index;
+
+ /* words 3 : used for updating single entry, ignored when setting
+ * the entire table through the control buffer.
+ */
+ struct ena_admin_rss_ind_table_entry inline_entry;
+};
+
+/* ENA Get Feature command */
+struct ena_admin_get_feat_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* words 1:3 : points to control buffer (direct or indirect,
+ * chained if needed)
+ */
+ struct ena_admin_ctrl_buff_info control_buffer;
+
+ /* words 4 : */
+ struct ena_admin_get_set_feature_common_desc feat_common;
+
+ /* words 5:15 : */
+ union {
+ /* raw words */
+ uint32_t raw[11];
+ } u;
+};
+
+/* ENA Get Feature command response */
+struct ena_admin_get_feat_resp {
+ /* words 0:1 : */
+ struct ena_admin_acq_common_desc acq_common_desc;
+
+ /* words 2:15 : */
+ union {
+ /* raw words */
+ uint32_t raw[14];
+
+ /* words 2:10 : Get Device Attributes */
+ struct ena_admin_device_attr_feature_desc dev_attr;
+
+ /* words 2:5 : Max queues num */
+ struct ena_admin_queue_feature_desc max_queue;
+
+ /* words 2:3 : AENQ configuration */
+ struct ena_admin_feature_aenq_desc aenq;
+
+ /* words 2:4 : Get Link configuration */
+ struct ena_admin_get_feature_link_desc link;
+
+ /* words 2:4 : offload configuration */
+ struct ena_admin_feature_offload_desc offload;
+
+ /* words 2:4 : rss flow hash function */
+ struct ena_admin_feature_rss_flow_hash_function flow_hash_func;
+
+ /* words 2 : rss flow hash input */
+ struct ena_admin_feature_rss_flow_hash_input flow_hash_input;
+
+ /* words 2:3 : rss indirection table */
+ struct ena_admin_feature_rss_ind_table ind_table;
+ } u;
+};
+
+/* ENA Set Feature command */
+struct ena_admin_set_feat_cmd {
+ /* words 0 : */
+ struct ena_admin_aq_common_desc aq_common_descriptor;
+
+ /* words 1:3 : points to control buffer (direct or indirect,
+ * chained if needed)
+ */
+ struct ena_admin_ctrl_buff_info control_buffer;
+
+ /* words 4 : */
+ struct ena_admin_get_set_feature_common_desc feat_common;
+
+ /* words 5:15 : */
+ union {
+ /* raw words */
+ uint32_t raw[11];
+
+ /* words 5 : mtu size */
+ struct ena_admin_set_feature_mtu_desc mtu;
+
+ /* words 5:7 : host attributes */
+ struct ena_admin_set_feature_host_attr_desc host_attr;
+
+ /* words 5:7 : interrupt moderation */
+ struct ena_admin_set_feature_intr_moder_desc intr_moder;
+
+ /* words 5:6 : AENQ configuration */
+ struct ena_admin_feature_aenq_desc aenq;
+
+ /* words 5:7 : rss flow hash function */
+ struct ena_admin_feature_rss_flow_hash_function flow_hash_func;
+
+ /* words 5 : rss flow hash input */
+ struct ena_admin_feature_rss_flow_hash_input flow_hash_input;
+
+ /* words 5:6 : rss indirection table */
+ struct ena_admin_feature_rss_ind_table ind_table;
+ } u;
+};
+
+/* ENA Set Feature command response */
+struct ena_admin_set_feat_resp {
+ /* words 0:1 : */
+ struct ena_admin_acq_common_desc acq_common_desc;
+
+ /* words 2:15 : */
+ union {
+ /* raw words */
+ uint32_t raw[14];
+ } u;
+};
+
+/* ENA Asynchronous Event Notification Queue descriptor. */
+struct ena_admin_aenq_common_desc {
+ /* word 0 : */
+ uint16_t group;
+
+ uint16_t syndrom;
+
+ /* word 1 : */
+ /* 0 : phase */
+ uint8_t flags;
+
+ uint8_t reserved1[3];
+
+ /* word 2 : Timestamp LSB */
+ uint32_t timestamp_low;
+
+ /* word 3 : Timestamp MSB */
+ uint32_t timestamp_high;
+};
+
+/* asynchronous event notification groups */
+enum ena_admin_aenq_group {
+ /* Link State Change */
+ ENA_ADMIN_LINK_CHANGE = 0,
+
+ ENA_ADMIN_FATAL_ERROR = 1,
+
+ ENA_ADMIN_WARNING = 2,
+
+ ENA_ADMIN_NOTIFICATION = 3,
+
+ ENA_ADMIN_KEEP_ALIVE = 4,
+
+ ENA_ADMIN_AENQ_GROUPS_NUM = 5,
+};
+
+/* syndorm of AENQ notification group */
+enum ena_admin_aenq_notification_syndrom {
+ ENA_ADMIN_SUSPEND = 0,
+
+ ENA_ADMIN_RESUME = 1,
+};
+
+/* ENA Asynchronous Event Notification generic descriptor. */
+struct ena_admin_aenq_entry {
+ /* words 0:3 : */
+ struct ena_admin_aenq_common_desc aenq_common_desc;
+
+ /* command specific inline data */
+ uint32_t inline_data_w4[12];
+};
+
+/* ENA Asynchronous Event Notification Queue Link Change descriptor. */
+struct ena_admin_aenq_link_change_desc {
+ /* words 0:3 : */
+ struct ena_admin_aenq_common_desc aenq_common_desc;
+
+ /* word 4 : */
+ /* 0 : link_status */
+ uint32_t flags;
+};
+
+/* ENA MMIO Readless response interface */
+struct ena_admin_ena_mmio_req_read_less_resp {
+ /* word 0 : */
+ /* request id */
+ uint16_t req_id;
+
+ /* register offset */
+ uint16_t reg_off;
+
+ /* word 1 : value is valid when poll is cleared */
+ uint32_t reg_val;
+};
+
+/* aq_common_desc */
+#define ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK GENMASK(11, 0)
+#define ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK BIT(0)
+#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_SHIFT 1
+#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK BIT(1)
+#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_SHIFT 2
+#define ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK BIT(2)
+
+/* sq */
+#define ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT 5
+#define ENA_ADMIN_SQ_SQ_DIRECTION_MASK GENMASK(7, 5)
+
+/* acq_common_desc */
+#define ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK GENMASK(11, 0)
+#define ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK BIT(0)
+
+/* aq_create_sq_cmd */
+#define ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT 5
+#define ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK GENMASK(7, 5)
+#define ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK GENMASK(3, 0)
+#define ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT 4
+#define ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK GENMASK(6, 4)
+#define ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK BIT(0)
+
+/* aq_create_cq_cmd */
+#define ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT 5
+#define ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK BIT(5)
+#define ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK GENMASK(4, 0)
+
+/* get_set_feature_common_desc */
+#define ENA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK GENMASK(1, 0)
+
+/* get_feature_link_desc */
+#define ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK BIT(0)
+#define ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_SHIFT 1
+#define ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK BIT(1)
+
+/* set_feature_intr_moder_desc */
+#define ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_SQ_DIRECTION_MASK GENMASK(2, 0)
+#define ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_ENABLE_MASK BIT(0)
+
+/* feature_offload_desc */
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L3_CSUM_IPV4_MASK BIT(0)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_SHIFT 1
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK BIT(1)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_SHIFT 2
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_MASK BIT(2)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_SHIFT 3
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_MASK BIT(3)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_SHIFT 4
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_MASK BIT(4)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_SHIFT 5
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK BIT(5)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_SHIFT 6
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_MASK BIT(6)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_SHIFT 7
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_MASK BIT(7)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L3_CSUM_IPV4_MASK BIT(0)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_SHIFT 1
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK BIT(1)
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_SHIFT 2
+#define ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_MASK BIT(2)
+
+/* feature_rss_flow_hash_function */
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_FUNCS_MASK GENMASK(7, 0)
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_SELECTED_FUNC_MASK GENMASK(7, 0)
+
+/* proto_input */
+#define ENA_ADMIN_PROTO_INPUT_INNER_MASK BIT(0)
+
+/* feature_rss_flow_hash_input */
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_SHIFT 1
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK BIT(1)
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_SHIFT 2
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK BIT(2)
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_SHIFT 1
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_MASK BIT(1)
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_SHIFT 2
+#define ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_MASK BIT(2)
+
+/* aenq_common_desc */
+#define ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK BIT(0)
+
+/* aenq_link_change_desc */
+#define ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK BIT(0)
+
+#if !defined(ENA_DEFS_LINUX_MAINLINE)
+static inline uint16_t get_ena_admin_aq_common_desc_command_id(const struct ena_admin_aq_common_desc *p)
+{
+ return p->command_id & ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK;
+}
+
+static inline void set_ena_admin_aq_common_desc_command_id(struct ena_admin_aq_common_desc *p, uint16_t val)
+{
+ p->command_id |= val & ENA_ADMIN_AQ_COMMON_DESC_COMMAND_ID_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_common_desc_phase(const struct ena_admin_aq_common_desc *p)
+{
+ return p->flags & ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK;
+}
+
+static inline void set_ena_admin_aq_common_desc_phase(struct ena_admin_aq_common_desc *p, uint8_t val)
+{
+ p->flags |= val & ENA_ADMIN_AQ_COMMON_DESC_PHASE_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_common_desc_ctrl_data(const struct ena_admin_aq_common_desc *p)
+{
+ return (p->flags & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK) >> ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_SHIFT;
+}
+
+static inline void set_ena_admin_aq_common_desc_ctrl_data(struct ena_admin_aq_common_desc *p, uint8_t val)
+{
+ p->flags |= (val << ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_SHIFT) & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_common_desc_ctrl_data_indirect(const struct ena_admin_aq_common_desc *p)
+{
+ return (p->flags & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK) >> ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_SHIFT;
+}
+
+static inline void set_ena_admin_aq_common_desc_ctrl_data_indirect(struct ena_admin_aq_common_desc *p, uint8_t val)
+{
+ p->flags |= (val << ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_SHIFT) & ENA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;
+}
+
+static inline uint8_t get_ena_admin_sq_sq_direction(const struct ena_admin_sq *p)
+{
+ return (p->sq_identity & ENA_ADMIN_SQ_SQ_DIRECTION_MASK) >> ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT;
+}
+
+static inline void set_ena_admin_sq_sq_direction(struct ena_admin_sq *p, uint8_t val)
+{
+ p->sq_identity |= (val << ENA_ADMIN_SQ_SQ_DIRECTION_SHIFT) & ENA_ADMIN_SQ_SQ_DIRECTION_MASK;
+}
+
+static inline uint16_t get_ena_admin_acq_common_desc_command_id(const struct ena_admin_acq_common_desc *p)
+{
+ return p->command & ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK;
+}
+
+static inline void set_ena_admin_acq_common_desc_command_id(struct ena_admin_acq_common_desc *p, uint16_t val)
+{
+ p->command |= val & ENA_ADMIN_ACQ_COMMON_DESC_COMMAND_ID_MASK;
+}
+
+static inline uint8_t get_ena_admin_acq_common_desc_phase(const struct ena_admin_acq_common_desc *p)
+{
+ return p->flags & ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK;
+}
+
+static inline void set_ena_admin_acq_common_desc_phase(struct ena_admin_acq_common_desc *p, uint8_t val)
+{
+ p->flags |= val & ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_create_sq_cmd_sq_direction(const struct ena_admin_aq_create_sq_cmd *p)
+{
+ return (p->sq_identity & ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK) >> ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT;
+}
+
+static inline void set_ena_admin_aq_create_sq_cmd_sq_direction(struct ena_admin_aq_create_sq_cmd *p, uint8_t val)
+{
+ p->sq_identity |= (val << ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_SHIFT) & ENA_ADMIN_AQ_CREATE_SQ_CMD_SQ_DIRECTION_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_create_sq_cmd_placement_policy(const struct ena_admin_aq_create_sq_cmd *p)
+{
+ return p->sq_caps_2 & ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK;
+}
+
+static inline void set_ena_admin_aq_create_sq_cmd_placement_policy(struct ena_admin_aq_create_sq_cmd *p, uint8_t val)
+{
+ p->sq_caps_2 |= val & ENA_ADMIN_AQ_CREATE_SQ_CMD_PLACEMENT_POLICY_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_create_sq_cmd_completion_policy(const struct ena_admin_aq_create_sq_cmd *p)
+{
+ return (p->sq_caps_2 & ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK) >> ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT;
+}
+
+static inline void set_ena_admin_aq_create_sq_cmd_completion_policy(struct ena_admin_aq_create_sq_cmd *p, uint8_t val)
+{
+ p->sq_caps_2 |= (val << ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_SHIFT) & ENA_ADMIN_AQ_CREATE_SQ_CMD_COMPLETION_POLICY_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_create_sq_cmd_is_physically_contiguous(const struct ena_admin_aq_create_sq_cmd *p)
+{
+ return p->sq_caps_3 & ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK;
+}
+
+static inline void set_ena_admin_aq_create_sq_cmd_is_physically_contiguous(struct ena_admin_aq_create_sq_cmd *p, uint8_t val)
+{
+ p->sq_caps_3 |= val & ENA_ADMIN_AQ_CREATE_SQ_CMD_IS_PHYSICALLY_CONTIGUOUS_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_create_cq_cmd_interrupt_mode_enabled(const struct ena_admin_aq_create_cq_cmd *p)
+{
+ return (p->cq_caps_1 & ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK) >> ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT;
+}
+
+static inline void set_ena_admin_aq_create_cq_cmd_interrupt_mode_enabled(struct ena_admin_aq_create_cq_cmd *p, uint8_t val)
+{
+ p->cq_caps_1 |= (val << ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT) & ENA_ADMIN_AQ_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_MASK;
+}
+
+static inline uint8_t get_ena_admin_aq_create_cq_cmd_cq_entry_size_words(const struct ena_admin_aq_create_cq_cmd *p)
+{
+ return p->cq_caps_2 & ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK;
+}
+
+static inline void set_ena_admin_aq_create_cq_cmd_cq_entry_size_words(struct ena_admin_aq_create_cq_cmd *p, uint8_t val)
+{
+ p->cq_caps_2 |= val & ENA_ADMIN_AQ_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK;
+}
+
+static inline uint8_t get_ena_admin_get_set_feature_common_desc_select(const struct ena_admin_get_set_feature_common_desc *p)
+{
+ return p->flags & ENA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK;
+}
+
+static inline void set_ena_admin_get_set_feature_common_desc_select(struct ena_admin_get_set_feature_common_desc *p, uint8_t val)
+{
+ p->flags |= val & ENA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK;
+}
+
+static inline uint32_t get_ena_admin_get_feature_link_desc_autoneg(const struct ena_admin_get_feature_link_desc *p)
+{
+ return p->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK;
+}
+
+static inline void set_ena_admin_get_feature_link_desc_autoneg(struct ena_admin_get_feature_link_desc *p, uint32_t val)
+{
+ p->flags |= val & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK;
+}
+
+static inline uint32_t get_ena_admin_get_feature_link_desc_duplex(const struct ena_admin_get_feature_link_desc *p)
+{
+ return (p->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK) >> ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_SHIFT;
+}
+
+static inline void set_ena_admin_get_feature_link_desc_duplex(struct ena_admin_get_feature_link_desc *p, uint32_t val)
+{
+ p->flags |= (val << ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_SHIFT) & ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK;
+}
+
+static inline uint8_t get_ena_admin_set_feature_intr_moder_desc_sq_direction(const struct ena_admin_set_feature_intr_moder_desc *p)
+{
+ return p->queue_identity & ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_SQ_DIRECTION_MASK;
+}
+
+static inline void set_ena_admin_set_feature_intr_moder_desc_sq_direction(struct ena_admin_set_feature_intr_moder_desc *p, uint8_t val)
+{
+ p->queue_identity |= val & ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_SQ_DIRECTION_MASK;
+}
+
+static inline uint32_t get_ena_admin_set_feature_intr_moder_desc_enable(const struct ena_admin_set_feature_intr_moder_desc *p)
+{
+ return p->flags & ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_ENABLE_MASK;
+}
+
+static inline void set_ena_admin_set_feature_intr_moder_desc_enable(struct ena_admin_set_feature_intr_moder_desc *p, uint32_t val)
+{
+ p->flags |= val & ENA_ADMIN_SET_FEATURE_INTR_MODER_DESC_ENABLE_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_TX_L3_csum_ipv4(const struct ena_admin_feature_offload_desc *p)
+{
+ return p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L3_CSUM_IPV4_MASK;
+}
+
+static inline void set_ena_admin_feature_offload_desc_TX_L3_csum_ipv4(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= val & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L3_CSUM_IPV4_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_part(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_part(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_full(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_TX_L4_ipv4_csum_full(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_FULL_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_part(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_part(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_PART_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_full(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_TX_L4_ipv6_csum_full(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV6_CSUM_FULL_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_tso_ipv4(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_tso_ipv4(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_tso_ipv6(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_tso_ipv6(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV6_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_tso_ecn(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_tso_ecn(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->tx |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_ECN_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_RX_L3_csum_ipv4(const struct ena_admin_feature_offload_desc *p)
+{
+ return p->rx_supported & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L3_CSUM_IPV4_MASK;
+}
+
+static inline void set_ena_admin_feature_offload_desc_RX_L3_csum_ipv4(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->rx_supported |= val & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L3_CSUM_IPV4_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_RX_L4_ipv4_csum(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->rx_supported & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_RX_L4_ipv4_csum(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->rx_supported |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_offload_desc_RX_L4_ipv6_csum(const struct ena_admin_feature_offload_desc *p)
+{
+ return (p->rx_supported & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_MASK) >> ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_SHIFT;
+}
+
+static inline void set_ena_admin_feature_offload_desc_RX_L4_ipv6_csum(struct ena_admin_feature_offload_desc *p, uint32_t val)
+{
+ p->rx_supported |= (val << ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_SHIFT) & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV6_CSUM_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_rss_flow_hash_function_funcs(const struct ena_admin_feature_rss_flow_hash_function *p)
+{
+ return p->supported_func & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_FUNCS_MASK;
+}
+
+static inline void set_ena_admin_feature_rss_flow_hash_function_funcs(struct ena_admin_feature_rss_flow_hash_function *p, uint32_t val)
+{
+ p->supported_func |= val & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_FUNCS_MASK;
+}
+
+static inline uint32_t get_ena_admin_feature_rss_flow_hash_function_selected_func(const struct ena_admin_feature_rss_flow_hash_function *p)
+{
+ return p->selected_func & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_SELECTED_FUNC_MASK;
+}
+
+static inline void set_ena_admin_feature_rss_flow_hash_function_selected_func(struct ena_admin_feature_rss_flow_hash_function *p, uint32_t val)
+{
+ p->selected_func |= val & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_FUNCTION_SELECTED_FUNC_MASK;
+}
+
+static inline uint16_t get_ena_admin_proto_input_inner(const struct ena_admin_proto_input *p)
+{
+ return p->flags & ENA_ADMIN_PROTO_INPUT_INNER_MASK;
+}
+
+static inline void set_ena_admin_proto_input_inner(struct ena_admin_proto_input *p, uint16_t val)
+{
+ p->flags |= val & ENA_ADMIN_PROTO_INPUT_INNER_MASK;
+}
+
+static inline uint16_t get_ena_admin_feature_rss_flow_hash_input_L3_sort(const struct ena_admin_feature_rss_flow_hash_input *p)
+{
+ return (p->supported_input_sort & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK) >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_SHIFT;
+}
+
+static inline void set_ena_admin_feature_rss_flow_hash_input_L3_sort(struct ena_admin_feature_rss_flow_hash_input *p, uint16_t val)
+{
+ p->supported_input_sort |= (val << ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_SHIFT) & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L3_SORT_MASK;
+}
+
+static inline uint16_t get_ena_admin_feature_rss_flow_hash_input_L4_sort(const struct ena_admin_feature_rss_flow_hash_input *p)
+{
+ return (p->supported_input_sort & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK) >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_SHIFT;
+}
+
+static inline void set_ena_admin_feature_rss_flow_hash_input_L4_sort(struct ena_admin_feature_rss_flow_hash_input *p, uint16_t val)
+{
+ p->supported_input_sort |= (val << ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_SHIFT) & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_L4_SORT_MASK;
+}
+
+static inline uint16_t get_ena_admin_feature_rss_flow_hash_input_enable_L3_sort(const struct ena_admin_feature_rss_flow_hash_input *p)
+{
+ return (p->enabled_input_sort & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_MASK) >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_SHIFT;
+}
+
+static inline void set_ena_admin_feature_rss_flow_hash_input_enable_L3_sort(struct ena_admin_feature_rss_flow_hash_input *p, uint16_t val)
+{
+ p->enabled_input_sort |= (val << ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_SHIFT) & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L3_SORT_MASK;
+}
+
+static inline uint16_t get_ena_admin_feature_rss_flow_hash_input_enable_L4_sort(const struct ena_admin_feature_rss_flow_hash_input *p)
+{
+ return (p->enabled_input_sort & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_MASK) >> ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_SHIFT;
+}
+
+static inline void set_ena_admin_feature_rss_flow_hash_input_enable_L4_sort(struct ena_admin_feature_rss_flow_hash_input *p, uint16_t val)
+{
+ p->enabled_input_sort |= (val << ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_SHIFT) & ENA_ADMIN_FEATURE_RSS_FLOW_HASH_INPUT_ENABLE_L4_SORT_MASK;
+}
+
+static inline uint8_t get_ena_admin_aenq_common_desc_phase(const struct ena_admin_aenq_common_desc *p)
+{
+ return p->flags & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK;
+}
+
+static inline void set_ena_admin_aenq_common_desc_phase(struct ena_admin_aenq_common_desc *p, uint8_t val)
+{
+ p->flags |= val & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK;
+}
+
+static inline uint32_t get_ena_admin_aenq_link_change_desc_link_status(const struct ena_admin_aenq_link_change_desc *p)
+{
+ return p->flags & ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK;
+}
+
+static inline void set_ena_admin_aenq_link_change_desc_link_status(struct ena_admin_aenq_link_change_desc *p, uint32_t val)
+{
+ p->flags |= val & ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK;
+}
+
+#endif /* !defined(ENA_DEFS_LINUX_MAINLINE) */
+#endif /*_ENA_ADMIN_H_ */
diff --git a/drivers/net/ena/base/ena_defs/ena_admin_defs_custom.h b/drivers/net/ena/base/ena_defs/ena_admin_defs_custom.h
new file mode 100644
index 0000000..265400e
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_admin_defs_custom.h
@@ -0,0 +1,40 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_ADMIN_QUEUE_CUSTOM_H_
+#define _ENA_ADMIN_QUEUE_CUSTOM_H_
+
+#include "ena_admin_defs.h"
+
+
+#endif //_ENA_ADMIN_QUEUE_CUSTOM_H_
diff --git a/drivers/net/ena/base/ena_defs/ena_common_defs.h b/drivers/net/ena/base/ena_defs/ena_common_defs.h
new file mode 100644
index 0000000..95e0f38
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_common_defs.h
@@ -0,0 +1,54 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_COMMON_H_
+#define _ENA_COMMON_H_
+
+/* spec version */
+#define ENA_COMMON_SPEC_VERSION_MAJOR 0 /* spec version major */
+#define ENA_COMMON_SPEC_VERSION_MINOR 10 /* spec version minor */
+
+/* ENA operates with 48-bit memory addresses. ena_mem_addr_t */
+struct ena_common_mem_addr {
+ /* word 0 : low 32 bit of the memory address */
+ uint32_t mem_addr_low;
+
+ /* word 1 : */
+ /* high 16 bits of the memory address */
+ uint16_t mem_addr_high;
+
+ /* MBZ */
+ uint16_t reserved16;
+};
+
+#endif /*_ENA_COMMON_H_ */
diff --git a/drivers/net/ena/base/ena_defs/ena_eth_io_defs.h b/drivers/net/ena/base/ena_defs/ena_eth_io_defs.h
new file mode 100644
index 0000000..633f613
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_eth_io_defs.h
@@ -0,0 +1,1095 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_ETH_IO_H_
+#define _ENA_ETH_IO_H_
+
+/* Layer 3 protocol index */
+enum ena_eth_io_l3_proto_index {
+ ENA_ETH_IO_L3_PROTO_UNKNOWN = 0,
+
+ ENA_ETH_IO_L3_PROTO_IPV4 = 8,
+
+ ENA_ETH_IO_L3_PROTO_IPV6 = 11,
+
+ ENA_ETH_IO_L3_PROTO_FCOE = 21,
+
+ ENA_ETH_IO_L3_PROTO_ROCE = 22,
+};
+
+/* Layer 4 protocol index */
+enum ena_eth_io_l4_proto_index {
+ ENA_ETH_IO_L4_PROTO_UNKNOWN = 0,
+
+ ENA_ETH_IO_L4_PROTO_TCP = 12,
+
+ ENA_ETH_IO_L4_PROTO_UDP = 13,
+
+ ENA_ETH_IO_L4_PROTO_ROUTEABLE_ROCE = 23,
+};
+
+/* ENA IO Queue Tx descriptor */
+struct ena_eth_io_tx_desc {
+ /* word 0 : */
+ /* length, request id and control flags
+ * 15:0 : length - Buffer length in bytes, must
+ * include any packet trailers that the ENA supposed
+ * to update like End-to-End CRC, Authentication GMAC
+ * etc. This length must not include the
+ * 'Push_Buffer' length. This length must not include
+ * the 4-byte added in the end for 802.3 Ethernet FCS
+ * 21:16 : req_id_hi - Request ID[15:10]
+ * 22 : reserved22 - MBZ
+ * 23 : meta_desc - MBZ
+ * 24 : phase
+ * 25 : reserved1 - MBZ
+ * 26 : first - Indicates first descriptor in
+ * transaction
+ * 27 : last - Indicates last descriptor in
+ * transaction
+ * 28 : comp_req - Indicates whether completion
+ * should be posted, after packet is transmitted.
+ * Valid only for first descriptor
+ * 30:29 : reserved29 - MBZ
+ * 31 : reserved31 - MBZ
+ */
+ uint32_t len_ctrl;
+
+ /* word 1 : */
+ /* ethernet control
+ * 3:0 : l3_proto_idx - L3 protocol, if
+ * tunnel_ctrl[0] is set, then this is the inner
+ * packet L3. This field required when
+ * l3_csum_en,l3_csum or tso_en are set.
+ * 4 : DF - IPv4 DF, must be 0 if packet is IPv4 and
+ * DF flags of the IPv4 header is 0. Otherwise must
+ * be set to 1
+ * 6:5 : reserved5
+ * 7 : tso_en - Enable TSO, For TCP only. For packets
+ * with tunnel (tunnel_ctrl[0]=1), then the inner
+ * packet will be segmented while the outer tunnel is
+ * duplicated
+ * 12:8 : l4_proto_idx - L4 protocol, if
+ * tunnel_ctrl[0] is set, then this is the inner
+ * packet L4. This field need to be set when
+ * l4_csum_en or tso_en are set.
+ * 13 : l3_csum_en - enable IPv4 header checksum. if
+ * tunnel_ctrl[0] is set, then this will enable
+ * checksum for the inner packet IPv4
+ * 14 : l4_csum_en - enable TCP/UDP checksum. if
+ * tunnel_ctrl[0] is set, then this will enable
+ * checksum on the inner packet TCP/UDP checksum
+ * 15 : ethernet_fcs_dis - when set, the controller
+ * will not append the 802.3 Ethernet Frame Check
+ * Sequence to the packet
+ * 16 : reserved16
+ * 17 : l4_csum_partial - L4 partial checksum. when
+ * set to 0, the ENA calculates the L4 checksum,
+ * where the Destination Address required for the
+ * TCP/UDP pseudo-header is taken from the actual
+ * packet L3 header. when set to 1, the ENA doesn't
+ * calculate the sum of the pseudo-header, instead,
+ * the checksum field of the L4 is used instead. When
+ * TSO enabled, the checksum of the pseudo-header
+ * must not include the tcp length field. L4 partial
+ * checksum should be used for IPv6 packet that
+ * contains Routing Headers.
+ * 20:18 : tunnel_ctrl - Bit 0: tunneling exists, Bit
+ * 1: tunnel packet actually uses UDP as L4, Bit 2:
+ * tunnel packet L3 protocol: 0: IPv4 1: IPv6
+ * 21 : ts_req - Indicates that the packet is IEEE
+ * 1588v2 packet requiring the timestamp
+ * 31:22 : req_id_lo - Request ID[9:0]
+ */
+ uint32_t meta_ctrl;
+
+ /* word 2 : Buffer address bits[31:0] */
+ uint32_t buff_addr_lo;
+
+ /* word 3 : */
+ /* address high and header size
+ * 15:0 : addr_hi - Buffer Pointer[47:32]
+ * 23:16 : reserved16_w2
+ * 31:24 : header_length - Header length. For Low
+ * Latency Queues, this fields indicates the number
+ * of bytes written to the headers' memory. For
+ * normal queues, if packet is TCP or UDP, and longer
+ * than max_header_size, then this field should be
+ * set to the sum of L4 header offset and L4 header
+ * size(without options), otherwise, this field
+ * should be set to 0. For both modes, this field
+ * must not exceed the max_header_size.
+ * max_header_size value is reported by the Max
+ * Queues Feature descriptor
+ */
+ uint32_t buff_addr_hi_hdr_sz;
+};
+
+/* ENA IO Queue Tx Meta descriptor */
+struct ena_eth_io_tx_meta_desc {
+ /* word 0 : */
+ /* length, request id and control flags
+ * 9:0 : req_id_lo - Request ID[9:0]
+ * 11:10 : outr_l3_off_hi - valid if
+ * tunnel_ctrl[0]=1. bits[4:3] of outer packet L3
+ * offset
+ * 12 : reserved12 - MBZ
+ * 13 : reserved13 - MBZ
+ * 14 : ext_valid - if set, offset fields in Word2
+ * are valid Also MSS High in Word 0 and Outer L3
+ * Offset High in WORD 0 and bits [31:24] in Word 3
+ * 15 : word3_valid - If set Crypto Info[23:0] of
+ * Word 3 is valid
+ * 19:16 : mss_hi_ptp
+ * 20 : eth_meta_type - 0: Tx Metadata Descriptor, 1:
+ * Extended Metadata Descriptor
+ * 21 : meta_store - Store extended metadata in queue
+ * cache
+ * 22 : reserved22 - MBZ
+ * 23 : meta_desc - MBO
+ * 24 : phase
+ * 25 : reserved25 - MBZ
+ * 26 : first - Indicates first descriptor in
+ * transaction
+ * 27 : last - Indicates last descriptor in
+ * transaction
+ * 28 : comp_req - Indicates whether completion
+ * should be posted, after packet is transmitted.
+ * Valid only for first descriptor
+ * 30:29 : reserved29 - MBZ
+ * 31 : reserved31 - MBZ
+ */
+ uint32_t len_ctrl;
+
+ /* word 1 : */
+ /* word 1
+ * 5:0 : req_id_hi
+ * 31:6 : reserved6 - MBZ
+ */
+ uint32_t word1;
+
+ /* word 2 : */
+ /* word 2
+ * 7:0 : l3_hdr_len - the header length L3 IP header.
+ * if tunnel_ctrl[0]=1, this is the IP header length
+ * of the inner packet. FIXME - check if includes IP
+ * options hdr_len
+ * 15:8 : l3_hdr_off - the offset of the first byte
+ * in the L3 header from the beginning of the to-be
+ * transmitted packet. if tunnel_ctrl[0]=1, this is
+ * the offset the L3 header of the inner packet
+ * 21:16 : l4_hdr_len_in_words - counts the L4 header
+ * length in words. there is an explicit assumption
+ * that L4 header appears right after L3 header and
+ * L4 offset is based on l3_hdr_off+l3_hdr_len FIXME
+ * - pls confirm
+ * 31:22 : mss_lo
+ */
+ uint32_t word2;
+
+ /* word 3 : */
+ /* word 3
+ * 23:0 : crypto_info
+ * 28:24 : outr_l3_hdr_len_words - valid if
+ * tunnel_ctrl[0]=1. Counts in words
+ * 31:29 : outr_l3_off_lo - valid if
+ * tunnel_ctrl[0]=1. bits[2:0] of outer packet L3
+ * offset. Counts the offset of the tunnel IP header
+ * from beginning of the packet. NOTE: if the tunnel
+ * header requires CRC or checksum, it is expected to
+ * be done by the driver as it is not done by the HW
+ */
+ uint32_t word3;
+};
+
+/* ENA IO Queue Tx completions descriptor */
+struct ena_eth_io_tx_cdesc {
+ /* word 0 : */
+ /* Request ID[15:0] */
+ uint16_t req_id;
+
+ uint8_t status;
+
+ /* flags
+ * 0 : phase
+ * 7:1 : reserved1
+ */
+ uint8_t flags;
+
+ /* word 1 : */
+ uint16_t sub_qid;
+
+ /* indicates location of submission queue head */
+ uint16_t sq_head_idx;
+};
+
+/* ENA IO Queue Rx descriptor */
+struct ena_eth_io_rx_desc {
+ /* word 0 : */
+ /* In bytes. 0 means 64KB */
+ uint16_t length;
+
+ /* MBZ */
+ uint8_t reserved2;
+
+ /* control flags
+ * 0 : phase
+ * 1 : reserved1 - MBZ
+ * 2 : first - Indicates first descriptor in
+ * transaction
+ * 3 : last - Indicates last descriptor in transaction
+ * 4 : comp_req
+ * 5 : reserved5 - MBO
+ * 7:6 : reserved6 - MBZ
+ */
+ uint8_t ctrl;
+
+ /* word 1 : */
+ uint16_t req_id;
+
+ /* MBZ */
+ uint16_t reserved6;
+
+ /* word 2 : Buffer address bits[31:0] */
+ uint32_t buff_addr_lo;
+
+ /* word 3 : */
+ /* Buffer Address bits[47:16] */
+ uint16_t buff_addr_hi;
+
+ /* MBZ */
+ uint16_t reserved16_w3;
+};
+
+/* ENA IO Queue Rx Completion Base Descriptor (4-word format). Note: all
+ * ethernet parsing information are valid only when last=1
+ */
+struct ena_eth_io_rx_cdesc_base {
+ /* word 0 : */
+ /* 4:0 : l3_proto_idx - L3 protocol index
+ * 6:5 : src_vlan_cnt - Source VLAN count
+ * 7 : tunnel - Tunnel exists
+ * 12:8 : l4_proto_idx - L4 protocol index
+ * 13 : l3_csum_err - when set, either the L3
+ * checksum error detected, or, the controller didn't
+ * validate the checksum, If tunnel exists, this
+ * result is for the inner packet. This bit is valid
+ * only when l3_proto_idx indicates IPv4 packet
+ * 14 : l4_csum_err - when set, either the L4
+ * checksum error detected, or, the controller didn't
+ * validate the checksum. If tunnel exists, this
+ * result is for the inner packet. This bit is valid
+ * only when l4_proto_idx indicates TCP/UDP packet,
+ * and, ipv4_frag is not set
+ * 15 : ipv4_frag - Indicates IPv4 fragmented packet
+ * 17:16 : reserved16
+ * 19:18 : reserved18
+ * 20 : secured_pkt - Set if packet was handled by
+ * inline crypto engine
+ * 22:21 : crypto_status - bit 0 secured direction:
+ * 0: decryption, 1: encryption. bit 1 reserved
+ * 23 : reserved23
+ * 24 : phase
+ * 25 : l3_csum2 - second checksum engine result
+ * 26 : first - Indicates first descriptor in
+ * transaction
+ * 27 : last - Indicates last descriptor in
+ * transaction
+ * 28 : inr_l4_csum - TCP/UDP checksum results for
+ * inner packet
+ * 29 : reserved29
+ * 30 : buffer - 0: Metadata descriptor. 1: Buffer
+ * Descriptor was used
+ * 31 : reserved31
+ */
+ uint32_t status;
+
+ /* word 1 : */
+ uint16_t length;
+
+ uint16_t req_id;
+
+ /* word 2 : 32-bit hash result */
+ uint32_t hash;
+
+ /* word 3 : */
+ /* submission queue number */
+ uint16_t sub_qid;
+
+ uint16_t reserved;
+};
+
+/* ENA IO Queue Rx Completion Descriptor (8-word format) */
+struct ena_eth_io_rx_cdesc_ext {
+ /* words 0:3 : Rx Completion Extended */
+ struct ena_eth_io_rx_cdesc_base base;
+
+ /* word 4 : Completed Buffer address bits[31:0] */
+ uint32_t buff_addr_lo;
+
+ /* word 5 : */
+ /* the buffer address used bits[47:32] */
+ uint16_t buff_addr_hi;
+
+ uint16_t reserved16;
+
+ /* word 6 : Reserved */
+ uint32_t reserved_w6;
+
+ /* word 7 : Reserved */
+ uint32_t reserved_w7;
+};
+
+/* tx_desc */
+#define ENA_ETH_IO_TX_DESC_LENGTH_MASK GENMASK(15, 0)
+#define ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT 16
+#define ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK GENMASK(21, 16)
+#define ENA_ETH_IO_TX_DESC_META_DESC_SHIFT 23
+#define ENA_ETH_IO_TX_DESC_META_DESC_MASK BIT(23)
+#define ENA_ETH_IO_TX_DESC_PHASE_SHIFT 24
+#define ENA_ETH_IO_TX_DESC_PHASE_MASK BIT(24)
+#define ENA_ETH_IO_TX_DESC_FIRST_SHIFT 26
+#define ENA_ETH_IO_TX_DESC_FIRST_MASK BIT(26)
+#define ENA_ETH_IO_TX_DESC_LAST_SHIFT 27
+#define ENA_ETH_IO_TX_DESC_LAST_MASK BIT(27)
+#define ENA_ETH_IO_TX_DESC_COMP_REQ_SHIFT 28
+#define ENA_ETH_IO_TX_DESC_COMP_REQ_MASK BIT(28)
+#define ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK GENMASK(3, 0)
+#define ENA_ETH_IO_TX_DESC_DF_SHIFT 4
+#define ENA_ETH_IO_TX_DESC_DF_MASK BIT(4)
+#define ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT 7
+#define ENA_ETH_IO_TX_DESC_TSO_EN_MASK BIT(7)
+#define ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT 8
+#define ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK GENMASK(12, 8)
+#define ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT 13
+#define ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK BIT(13)
+#define ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT 14
+#define ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK BIT(14)
+#define ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_SHIFT 15
+#define ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_MASK BIT(15)
+#define ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT 17
+#define ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK BIT(17)
+#define ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_SHIFT 18
+#define ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_MASK GENMASK(20, 18)
+#define ENA_ETH_IO_TX_DESC_TS_REQ_SHIFT 21
+#define ENA_ETH_IO_TX_DESC_TS_REQ_MASK BIT(21)
+#define ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT 22
+#define ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK GENMASK(31, 22)
+#define ENA_ETH_IO_TX_DESC_ADDR_HI_MASK GENMASK(15, 0)
+#define ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT 24
+#define ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK GENMASK(31, 24)
+
+/* tx_meta_desc */
+#define ENA_ETH_IO_TX_META_DESC_REQ_ID_LO_MASK GENMASK(9, 0)
+#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_SHIFT 10
+#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_MASK GENMASK(11, 10)
+#define ENA_ETH_IO_TX_META_DESC_EXT_VALID_SHIFT 14
+#define ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK BIT(14)
+#define ENA_ETH_IO_TX_META_DESC_WORD3_VALID_SHIFT 15
+#define ENA_ETH_IO_TX_META_DESC_WORD3_VALID_MASK BIT(15)
+#define ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT 16
+#define ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK GENMASK(19, 16)
+#define ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_SHIFT 20
+#define ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK BIT(20)
+#define ENA_ETH_IO_TX_META_DESC_META_STORE_SHIFT 21
+#define ENA_ETH_IO_TX_META_DESC_META_STORE_MASK BIT(21)
+#define ENA_ETH_IO_TX_META_DESC_META_DESC_SHIFT 23
+#define ENA_ETH_IO_TX_META_DESC_META_DESC_MASK BIT(23)
+#define ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT 24
+#define ENA_ETH_IO_TX_META_DESC_PHASE_MASK BIT(24)
+#define ENA_ETH_IO_TX_META_DESC_FIRST_SHIFT 26
+#define ENA_ETH_IO_TX_META_DESC_FIRST_MASK BIT(26)
+#define ENA_ETH_IO_TX_META_DESC_LAST_SHIFT 27
+#define ENA_ETH_IO_TX_META_DESC_LAST_MASK BIT(27)
+#define ENA_ETH_IO_TX_META_DESC_COMP_REQ_SHIFT 28
+#define ENA_ETH_IO_TX_META_DESC_COMP_REQ_MASK BIT(28)
+#define ENA_ETH_IO_TX_META_DESC_REQ_ID_HI_MASK GENMASK(5, 0)
+#define ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK GENMASK(7, 0)
+#define ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT 8
+#define ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK GENMASK(15, 8)
+#define ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT 16
+#define ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK GENMASK(21, 16)
+#define ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT 22
+#define ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK GENMASK(31, 22)
+#define ENA_ETH_IO_TX_META_DESC_CRYPTO_INFO_MASK GENMASK(23, 0)
+#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_SHIFT 24
+#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_MASK GENMASK(28, 24)
+#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_SHIFT 29
+#define ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_MASK GENMASK(31, 29)
+
+/* tx_cdesc */
+#define ENA_ETH_IO_TX_CDESC_PHASE_MASK BIT(0)
+
+/* rx_desc */
+#define ENA_ETH_IO_RX_DESC_PHASE_MASK BIT(0)
+#define ENA_ETH_IO_RX_DESC_FIRST_SHIFT 2
+#define ENA_ETH_IO_RX_DESC_FIRST_MASK BIT(2)
+#define ENA_ETH_IO_RX_DESC_LAST_SHIFT 3
+#define ENA_ETH_IO_RX_DESC_LAST_MASK BIT(3)
+#define ENA_ETH_IO_RX_DESC_COMP_REQ_SHIFT 4
+#define ENA_ETH_IO_RX_DESC_COMP_REQ_MASK BIT(4)
+
+/* rx_cdesc_base */
+#define ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK GENMASK(4, 0)
+#define ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_SHIFT 5
+#define ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_MASK GENMASK(6, 5)
+#define ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_SHIFT 7
+#define ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_MASK BIT(7)
+#define ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT 8
+#define ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK GENMASK(12, 8)
+#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT 13
+#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK BIT(13)
+#define ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT 14
+#define ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK BIT(14)
+#define ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT 15
+#define ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK BIT(15)
+#define ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_SHIFT 20
+#define ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_MASK BIT(20)
+#define ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_SHIFT 21
+#define ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_MASK GENMASK(22, 21)
+#define ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT 24
+#define ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK BIT(24)
+#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_SHIFT 25
+#define ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_MASK BIT(25)
+#define ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT 26
+#define ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK BIT(26)
+#define ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT 27
+#define ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK BIT(27)
+#define ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_SHIFT 28
+#define ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_MASK BIT(28)
+#define ENA_ETH_IO_RX_CDESC_BASE_BUFFER_SHIFT 30
+#define ENA_ETH_IO_RX_CDESC_BASE_BUFFER_MASK BIT(30)
+
+#if !defined(ENA_DEFS_LINUX_MAINLINE)
+static inline uint32_t get_ena_eth_io_tx_desc_length(const struct ena_eth_io_tx_desc *p)
+{
+ return p->len_ctrl & ENA_ETH_IO_TX_DESC_LENGTH_MASK;
+}
+
+static inline void set_ena_eth_io_tx_desc_length(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= val & ENA_ETH_IO_TX_DESC_LENGTH_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_req_id_hi(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK) >> ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_req_id_hi(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT) & ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_meta_desc(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_DESC_META_DESC_MASK) >> ENA_ETH_IO_TX_DESC_META_DESC_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_meta_desc(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_DESC_META_DESC_SHIFT) & ENA_ETH_IO_TX_DESC_META_DESC_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_phase(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_DESC_PHASE_MASK) >> ENA_ETH_IO_TX_DESC_PHASE_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_phase(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) & ENA_ETH_IO_TX_DESC_PHASE_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_first(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_DESC_FIRST_MASK) >> ENA_ETH_IO_TX_DESC_FIRST_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_first(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_DESC_FIRST_SHIFT) & ENA_ETH_IO_TX_DESC_FIRST_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_last(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_DESC_LAST_MASK) >> ENA_ETH_IO_TX_DESC_LAST_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_last(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_DESC_LAST_SHIFT) & ENA_ETH_IO_TX_DESC_LAST_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_comp_req(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_DESC_COMP_REQ_MASK) >> ENA_ETH_IO_TX_DESC_COMP_REQ_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_comp_req(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_DESC_COMP_REQ_SHIFT) & ENA_ETH_IO_TX_DESC_COMP_REQ_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_l3_proto_idx(const struct ena_eth_io_tx_desc *p)
+{
+ return p->meta_ctrl & ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK;
+}
+
+static inline void set_ena_eth_io_tx_desc_l3_proto_idx(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= val & ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_DF(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_DF_MASK) >> ENA_ETH_IO_TX_DESC_DF_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_DF(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_DF_SHIFT) & ENA_ETH_IO_TX_DESC_DF_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_tso_en(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_TSO_EN_MASK) >> ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_tso_en(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT) & ENA_ETH_IO_TX_DESC_TSO_EN_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_l4_proto_idx(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK) >> ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_l4_proto_idx(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT) & ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_l3_csum_en(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK) >> ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_l3_csum_en(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT) & ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_l4_csum_en(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK) >> ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_l4_csum_en(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT) & ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_ethernet_fcs_dis(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_MASK) >> ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_ethernet_fcs_dis(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_SHIFT) & ENA_ETH_IO_TX_DESC_ETHERNET_FCS_DIS_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_l4_csum_partial(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK) >> ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_l4_csum_partial(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT) & ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_tunnel_ctrl(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_MASK) >> ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_tunnel_ctrl(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_SHIFT) & ENA_ETH_IO_TX_DESC_TUNNEL_CTRL_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_ts_req(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_TS_REQ_MASK) >> ENA_ETH_IO_TX_DESC_TS_REQ_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_ts_req(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_TS_REQ_SHIFT) & ENA_ETH_IO_TX_DESC_TS_REQ_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_req_id_lo(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->meta_ctrl & ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK) >> ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_req_id_lo(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->meta_ctrl |= (val << ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT) & ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_addr_hi(const struct ena_eth_io_tx_desc *p)
+{
+ return p->buff_addr_hi_hdr_sz & ENA_ETH_IO_TX_DESC_ADDR_HI_MASK;
+}
+
+static inline void set_ena_eth_io_tx_desc_addr_hi(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->buff_addr_hi_hdr_sz |= val & ENA_ETH_IO_TX_DESC_ADDR_HI_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_desc_header_length(const struct ena_eth_io_tx_desc *p)
+{
+ return (p->buff_addr_hi_hdr_sz & ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK) >> ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_desc_header_length(struct ena_eth_io_tx_desc *p, uint32_t val)
+{
+ p->buff_addr_hi_hdr_sz |= (val << ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT) & ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_req_id_lo(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return p->len_ctrl & ENA_ETH_IO_TX_META_DESC_REQ_ID_LO_MASK;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_req_id_lo(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= val & ENA_ETH_IO_TX_META_DESC_REQ_ID_LO_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_outr_l3_off_hi(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_MASK) >> ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_outr_l3_off_hi(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_SHIFT) & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_HI_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_ext_valid(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK) >> ENA_ETH_IO_TX_META_DESC_EXT_VALID_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_ext_valid(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_EXT_VALID_SHIFT) & ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_word3_valid(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_WORD3_VALID_MASK) >> ENA_ETH_IO_TX_META_DESC_WORD3_VALID_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_word3_valid(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_WORD3_VALID_SHIFT) & ENA_ETH_IO_TX_META_DESC_WORD3_VALID_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_mss_hi_ptp(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK) >> ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_mss_hi_ptp(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT) & ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_eth_meta_type(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK) >> ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_eth_meta_type(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_SHIFT) & ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_meta_store(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_META_STORE_MASK) >> ENA_ETH_IO_TX_META_DESC_META_STORE_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_meta_store(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_META_STORE_SHIFT) & ENA_ETH_IO_TX_META_DESC_META_STORE_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_meta_desc(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_META_DESC_MASK) >> ENA_ETH_IO_TX_META_DESC_META_DESC_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_meta_desc(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_META_DESC_SHIFT) & ENA_ETH_IO_TX_META_DESC_META_DESC_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_phase(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_PHASE_MASK) >> ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_phase(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT) & ENA_ETH_IO_TX_META_DESC_PHASE_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_first(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_FIRST_MASK) >> ENA_ETH_IO_TX_META_DESC_FIRST_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_first(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_FIRST_SHIFT) & ENA_ETH_IO_TX_META_DESC_FIRST_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_last(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_LAST_MASK) >> ENA_ETH_IO_TX_META_DESC_LAST_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_last(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_LAST_SHIFT) & ENA_ETH_IO_TX_META_DESC_LAST_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_comp_req(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->len_ctrl & ENA_ETH_IO_TX_META_DESC_COMP_REQ_MASK) >> ENA_ETH_IO_TX_META_DESC_COMP_REQ_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_comp_req(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->len_ctrl |= (val << ENA_ETH_IO_TX_META_DESC_COMP_REQ_SHIFT) & ENA_ETH_IO_TX_META_DESC_COMP_REQ_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_req_id_hi(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return p->word1 & ENA_ETH_IO_TX_META_DESC_REQ_ID_HI_MASK;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_req_id_hi(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word1 |= val & ENA_ETH_IO_TX_META_DESC_REQ_ID_HI_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_l3_hdr_len(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return p->word2 & ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_l3_hdr_len(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word2 |= val & ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_l3_hdr_off(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->word2 & ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK) >> ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_l3_hdr_off(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word2 |= (val << ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT) & ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_l4_hdr_len_in_words(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->word2 & ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK) >> ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_l4_hdr_len_in_words(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word2 |= (val << ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT) & ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_mss_lo(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->word2 & ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK) >> ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_mss_lo(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word2 |= (val << ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT) & ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_crypto_info(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return p->word3 & ENA_ETH_IO_TX_META_DESC_CRYPTO_INFO_MASK;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_crypto_info(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word3 |= val & ENA_ETH_IO_TX_META_DESC_CRYPTO_INFO_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_outr_l3_hdr_len_words(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->word3 & ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_MASK) >> ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_outr_l3_hdr_len_words(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word3 |= (val << ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_SHIFT) & ENA_ETH_IO_TX_META_DESC_OUTR_L3_HDR_LEN_WORDS_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_tx_meta_desc_outr_l3_off_lo(const struct ena_eth_io_tx_meta_desc *p)
+{
+ return (p->word3 & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_MASK) >> ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_SHIFT;
+}
+
+static inline void set_ena_eth_io_tx_meta_desc_outr_l3_off_lo(struct ena_eth_io_tx_meta_desc *p, uint32_t val)
+{
+ p->word3 |= (val << ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_SHIFT) & ENA_ETH_IO_TX_META_DESC_OUTR_L3_OFF_LO_MASK;
+}
+
+static inline uint8_t get_ena_eth_io_tx_cdesc_phase(const struct ena_eth_io_tx_cdesc *p)
+{
+ return p->flags & ENA_ETH_IO_TX_CDESC_PHASE_MASK;
+}
+
+static inline void set_ena_eth_io_tx_cdesc_phase(struct ena_eth_io_tx_cdesc *p, uint8_t val)
+{
+ p->flags |= val & ENA_ETH_IO_TX_CDESC_PHASE_MASK;
+}
+
+static inline uint8_t get_ena_eth_io_rx_desc_phase(const struct ena_eth_io_rx_desc *p)
+{
+ return p->ctrl & ENA_ETH_IO_RX_DESC_PHASE_MASK;
+}
+
+static inline void set_ena_eth_io_rx_desc_phase(struct ena_eth_io_rx_desc *p, uint8_t val)
+{
+ p->ctrl |= val & ENA_ETH_IO_RX_DESC_PHASE_MASK;
+}
+
+static inline uint8_t get_ena_eth_io_rx_desc_first(const struct ena_eth_io_rx_desc *p)
+{
+ return (p->ctrl & ENA_ETH_IO_RX_DESC_FIRST_MASK) >> ENA_ETH_IO_RX_DESC_FIRST_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_desc_first(struct ena_eth_io_rx_desc *p, uint8_t val)
+{
+ p->ctrl |= (val << ENA_ETH_IO_RX_DESC_FIRST_SHIFT) & ENA_ETH_IO_RX_DESC_FIRST_MASK;
+}
+
+static inline uint8_t get_ena_eth_io_rx_desc_last(const struct ena_eth_io_rx_desc *p)
+{
+ return (p->ctrl & ENA_ETH_IO_RX_DESC_LAST_MASK) >> ENA_ETH_IO_RX_DESC_LAST_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_desc_last(struct ena_eth_io_rx_desc *p, uint8_t val)
+{
+ p->ctrl |= (val << ENA_ETH_IO_RX_DESC_LAST_SHIFT) & ENA_ETH_IO_RX_DESC_LAST_MASK;
+}
+
+static inline uint8_t get_ena_eth_io_rx_desc_comp_req(const struct ena_eth_io_rx_desc *p)
+{
+ return (p->ctrl & ENA_ETH_IO_RX_DESC_COMP_REQ_MASK) >> ENA_ETH_IO_RX_DESC_COMP_REQ_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_desc_comp_req(struct ena_eth_io_rx_desc *p, uint8_t val)
+{
+ p->ctrl |= (val << ENA_ETH_IO_RX_DESC_COMP_REQ_SHIFT) & ENA_ETH_IO_RX_DESC_COMP_REQ_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_l3_proto_idx(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return p->status & ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_l3_proto_idx(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= val & ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_src_vlan_cnt(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_src_vlan_cnt(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_SRC_VLAN_CNT_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_tunnel(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_tunnel(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_TUNNEL_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_l4_proto_idx(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_l4_proto_idx(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_l3_csum_err(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_l3_csum_err(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_l4_csum_err(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_l4_csum_err(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_ipv4_frag(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_ipv4_frag(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_secured_pkt(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_secured_pkt(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_SECURED_PKT_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_crypto_status(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_crypto_status(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_CRYPTO_STATUS_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_phase(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_phase(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_l3_csum2(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_l3_csum2(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM2_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_first(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_first(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_last(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_last(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_inr_l4_csum(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_inr_l4_csum(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_INR_L4_CSUM_MASK;
+}
+
+static inline uint32_t get_ena_eth_io_rx_cdesc_base_buffer(const struct ena_eth_io_rx_cdesc_base *p)
+{
+ return (p->status & ENA_ETH_IO_RX_CDESC_BASE_BUFFER_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_BUFFER_SHIFT;
+}
+
+static inline void set_ena_eth_io_rx_cdesc_base_buffer(struct ena_eth_io_rx_cdesc_base *p, uint32_t val)
+{
+ p->status |= (val << ENA_ETH_IO_RX_CDESC_BASE_BUFFER_SHIFT) & ENA_ETH_IO_RX_CDESC_BASE_BUFFER_MASK;
+}
+
+#endif /* !defined(ENA_DEFS_LINUX_MAINLINE) */
+#endif /*_ENA_ETH_IO_H_ */
diff --git a/drivers/net/ena/base/ena_defs/ena_gen_info.h b/drivers/net/ena/base/ena_defs/ena_gen_info.h
new file mode 100644
index 0000000..c62b0a2
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_gen_info.h
@@ -0,0 +1,35 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#define ENA_GEN_DATE "Thu Jan 7 12:52:38 IST 2016"
+#define ENA_GEN_COMMIT "dd4129a"
diff --git a/drivers/net/ena/base/ena_defs/ena_includes.h b/drivers/net/ena/base/ena_defs/ena_includes.h
new file mode 100644
index 0000000..30a920a
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_includes.h
@@ -0,0 +1,37 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "ena_common_defs.h"
+#include "ena_regs_defs.h"
+#include "ena_admin_defs.h"
+#include "ena_eth_io_defs.h"
diff --git a/drivers/net/ena/base/ena_defs/ena_regs_defs.h b/drivers/net/ena/base/ena_defs/ena_regs_defs.h
new file mode 100644
index 0000000..324f068
--- /dev/null
+++ b/drivers/net/ena/base/ena_defs/ena_regs_defs.h
@@ -0,0 +1,326 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_REGS_H_
+#define _ENA_REGS_H_
+
+/* ENA Global Registers, for the entire PCIe function */
+struct ena_regs_ena_registers {
+ /* word 0 : */
+ /* ENA specification version [RO]
+ * 7:0 : minor_version - Minor version
+ * 15:8 : major_version - Major version.
+ * 31:16 : reserved16
+ */
+ uint32_t version;
+
+ /* word 1 : */
+ /* ENA controller version [RO]
+ * 7:0 : subminor_version - Sub Minor version
+ * 15:8 : minor_version - Minor version
+ * 23:16 : major_version - Major version.
+ * 31:24 : impl_id - implementation
+ */
+ uint32_t controller_version;
+
+ /* word 2 : */
+ /* capabilities register [RO]
+ * 0 : contiguous_queue_required - If set, requires
+ * that each queue ring occupies a contiguous
+ * physical memory space.
+ * 5:1 : reset_timeout - Max amount of time the
+ * driver should wait for ENA Reset to finish in
+ * resultion of 100ms.
+ * 7:6 : reserved6
+ * 15:8 : dma_addr_width - DMA address width. Number
+ * of bits of the DMA address supported by the
+ * Controller.
+ * 31:16 : reserved16
+ */
+ uint32_t caps;
+
+ /* word 3 : capabilities extended register [RO] */
+ uint32_t caps_ext;
+
+ /* word 4 : admin queue base address bits [31:0] [WO] */
+ uint32_t aq_base_lo;
+
+ /* word 5 : admin queue base address bits [63:32] [WO] */
+ uint32_t aq_base_hi;
+
+ /* word 6 : */
+ /* admin queue capabilities register [WO]
+ * 15:0 : aq_depth - admin queue depth in entries.
+ * must be power of 2
+ * 31:16 : aq_entry_size - admin queue entry size in
+ * 32-bit words
+ */
+ uint32_t aq_caps;
+
+ /* word 7 : */
+ uint32_t reserved;
+
+ /* word 8 : admin completion queue base address bits [31:0]. [WO] */
+ uint32_t acq_base_lo;
+
+ /* word 9 : admin completion queue base address bits [63:32]. [WO] */
+ uint32_t acq_base_hi;
+
+ /* word 10 : */
+ /* admin completion queue capabilities register [WO]
+ * 15:0 : acq_depth - admin completion queue depth in
+ * entries
+ * 31:16 : acq_entry_size - admin completion queue
+ * entry size in 32-bit words
+ */
+ uint32_t acq_caps;
+
+ /* word 11 : AQ Doorbell. incremented by number of new added
+ * entries, written value should wrap-around on 2^16 [WO]
+ */
+ uint32_t aq_db;
+
+ /* word 12 : ACQ tail pointer, indicates where new completions will
+ * be placed [RO]
+ */
+ uint32_t acq_tail;
+
+ /* word 13 : */
+ /* Asynchronous Event Notification Queue capabilities register [WO]
+ * 15:0 : aenq_depth - queue depth in entries
+ * 31:16 : aenq_entry_size - queue entry size in
+ * 32-bit words
+ */
+ uint32_t aenq_caps;
+
+ /* word 14 : Asynchronous Event Notification Queue base address
+ * bits [31:0] [WO]
+ */
+ uint32_t aenq_base_lo;
+
+ /* word 15 : Asynchronous Event Notification Queue base address
+ * bits [63:32] [WO]
+ */
+ uint32_t aenq_base_hi;
+
+ /* word 16 : AENQ Head Doorbell, indicates the entries that have
+ * been processed by the host [WO]
+ */
+ uint32_t aenq_head_db;
+
+ /* word 17 : AENQ tail pointer, indicates where new entries will be
+ * placed [RO]
+ */
+ uint32_t aenq_tail;
+
+ /* word 18 : */
+ uint32_t reserved_48;
+
+ /* word 19 : [RW] */
+ uint32_t intr_mask;
+
+ /* word 20 : */
+ uint32_t reserved_50;
+
+ /* word 21 : */
+ /* Device Control Register, some of these features may not be
+ * implemented or supported for a given client [WO]
+ * 0 : dev_reset - If set, indicates request for a
+ * reset, this bit will only be cleared when the
+ * reset operation finished and can not be cleared by
+ * writing 0 to it.
+ * 1 : aq_restart - Used in case AQ is not
+ * responsive: Once set, the it will be auto-cleared
+ * once process is done. The status of the restart is
+ * indicated in the status register.
+ * 2 : quiescent - If set, indicates a request for
+ * suspending of I/O, Admin and Async Events
+ * handling, this bit will only be cleared when the
+ * quiescen process is finished.
+ * 3 : io_resume - If set, indicates request to
+ * resume traffic processing.
+ * 31:4 : reserved4
+ */
+ uint32_t dev_ctl;
+
+ /* word 22 : */
+ /* Device Status Register [RO]
+ * 0 : ready - device ready to received admin commands
+ * 1 : aq_restart_in_progress - this bit is set while
+ * aq_restart in process
+ * 2 : aq_restart_finished - this bit is set only
+ * after aq_restart process finished, and will be
+ * auto-cleared one aq_restart in control register is
+ * invoked
+ * 3 : reset_in_progress - this bit is set while ENA
+ * reset is going
+ * 4 : reset_finished - this bit is set when ENA
+ * reset is finished. It is auto-cleared one reset is
+ * invoked in control register
+ * 5 : fatal_error
+ * 6 : quiescent_state_in_progress - A process to
+ * quiescent ENA is in progress
+ * 7 : quiescent_state_achieved - This bit is set
+ * once the quiescent state is achieved, and it is
+ * auto-cleared once the quiescent_start
+ * 31:8 : reserved8
+ */
+ uint32_t dev_sts;
+
+ /* word 23 : */
+ /* MMIO Read Less Register. host must initialize the mmio_resp_lo/hi
+ * before issueing new register read request [WO]
+ * 15:0 : req_id - request id
+ * 31:16 : reg_off - register offset
+ */
+ uint32_t mmio_reg_read;
+
+ /* word 24 : read response address bits [31:3], bits [2:0] must set
+ * to 0 [WO]
+ */
+ uint32_t mmio_resp_lo;
+
+ /* word 25 : read response address bits [64:32] [WO] */
+ uint32_t mmio_resp_hi;
+
+ /* word 26 : */
+ /* RSS Indirection table entry update register [WO]
+ * 15:0 : index - entry index
+ * 31:16 : cq_idx - cq identifier
+ */
+ uint32_t rss_ind_entry_update;
+};
+
+/* admin interrupt register */
+#define ENA_REGS_ADMIN_INTERRUPT_ACQ 0x1 /* Admin Completion queue */
+#define ENA_REGS_ADMIN_INTERRUPT_AENQ 0x2 /* Async Event Notification Queue */
+
+/* ena_registers offsets */
+#define ENA_REGS_VERSION_OFF 0x0
+#define ENA_REGS_CONTROLLER_VERSION_OFF 0x4
+#define ENA_REGS_CAPS_OFF 0x8
+#define ENA_REGS_CAPS_EXT_OFF 0xc
+#define ENA_REGS_AQ_BASE_LO_OFF 0x10
+#define ENA_REGS_AQ_BASE_HI_OFF 0x14
+#define ENA_REGS_AQ_CAPS_OFF 0x18
+#define ENA_REGS_ACQ_BASE_LO_OFF 0x20
+#define ENA_REGS_ACQ_BASE_HI_OFF 0x24
+#define ENA_REGS_ACQ_CAPS_OFF 0x28
+#define ENA_REGS_AQ_DB_OFF 0x2c
+#define ENA_REGS_ACQ_TAIL_OFF 0x30
+#define ENA_REGS_AENQ_CAPS_OFF 0x34
+#define ENA_REGS_AENQ_BASE_LO_OFF 0x38
+#define ENA_REGS_AENQ_BASE_HI_OFF 0x3c
+#define ENA_REGS_AENQ_HEAD_DB_OFF 0x40
+#define ENA_REGS_AENQ_TAIL_OFF 0x44
+#define ENA_REGS_INTR_MASK_OFF 0x4c
+#define ENA_REGS_DEV_CTL_OFF 0x54
+#define ENA_REGS_DEV_STS_OFF 0x58
+#define ENA_REGS_MMIO_REG_READ_OFF 0x5c
+#define ENA_REGS_MMIO_RESP_LO_OFF 0x60
+#define ENA_REGS_MMIO_RESP_HI_OFF 0x64
+#define ENA_REGS_RSS_IND_ENTRY_UPDATE_OFF 0x68
+
+/* version register */
+#define ENA_REGS_VERSION_MINOR_VERSION_MASK 0xff
+#define ENA_REGS_VERSION_MAJOR_VERSION_SHIFT 8
+#define ENA_REGS_VERSION_MAJOR_VERSION_MASK 0xff00
+
+/* controller_version register */
+#define ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK 0xff
+#define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT 8
+#define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK 0xff00
+#define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT 16
+#define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK 0xff0000
+#define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_SHIFT 24
+#define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_MASK 0xff000000
+
+/* caps register */
+#define ENA_REGS_CAPS_CONTIGUOUS_QUEUE_REQUIRED_MASK 0x1
+#define ENA_REGS_CAPS_RESET_TIMEOUT_SHIFT 1
+#define ENA_REGS_CAPS_RESET_TIMEOUT_MASK 0x3e
+#define ENA_REGS_CAPS_DMA_ADDR_WIDTH_SHIFT 8
+#define ENA_REGS_CAPS_DMA_ADDR_WIDTH_MASK 0xff00
+
+/* aq_caps register */
+#define ENA_REGS_AQ_CAPS_AQ_DEPTH_MASK 0xffff
+#define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_SHIFT 16
+#define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_MASK 0xffff0000
+
+/* acq_caps register */
+#define ENA_REGS_ACQ_CAPS_ACQ_DEPTH_MASK 0xffff
+#define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_SHIFT 16
+#define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_MASK 0xffff0000
+
+/* aenq_caps register */
+#define ENA_REGS_AENQ_CAPS_AENQ_DEPTH_MASK 0xffff
+#define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_SHIFT 16
+#define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_MASK 0xffff0000
+
+/* dev_ctl register */
+#define ENA_REGS_DEV_CTL_DEV_RESET_MASK 0x1
+#define ENA_REGS_DEV_CTL_AQ_RESTART_SHIFT 1
+#define ENA_REGS_DEV_CTL_AQ_RESTART_MASK 0x2
+#define ENA_REGS_DEV_CTL_QUIESCENT_SHIFT 2
+#define ENA_REGS_DEV_CTL_QUIESCENT_MASK 0x4
+#define ENA_REGS_DEV_CTL_IO_RESUME_SHIFT 3
+#define ENA_REGS_DEV_CTL_IO_RESUME_MASK 0x8
+
+/* dev_sts register */
+#define ENA_REGS_DEV_STS_READY_MASK 0x1
+#define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_SHIFT 1
+#define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_MASK 0x2
+#define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_SHIFT 2
+#define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_MASK 0x4
+#define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_SHIFT 3
+#define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK 0x8
+#define ENA_REGS_DEV_STS_RESET_FINISHED_SHIFT 4
+#define ENA_REGS_DEV_STS_RESET_FINISHED_MASK 0x10
+#define ENA_REGS_DEV_STS_FATAL_ERROR_SHIFT 5
+#define ENA_REGS_DEV_STS_FATAL_ERROR_MASK 0x20
+#define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_SHIFT 6
+#define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_MASK 0x40
+#define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_SHIFT 7
+#define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_MASK 0x80
+
+/* mmio_reg_read register */
+#define ENA_REGS_MMIO_REG_READ_REQ_ID_MASK 0xffff
+#define ENA_REGS_MMIO_REG_READ_REG_OFF_SHIFT 16
+#define ENA_REGS_MMIO_REG_READ_REG_OFF_MASK 0xffff0000
+
+/* rss_ind_entry_update register */
+#define ENA_REGS_RSS_IND_ENTRY_UPDATE_INDEX_MASK 0xffff
+#define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_SHIFT 16
+#define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_MASK 0xffff0000
+
+#endif /*_ENA_REGS_H_ */
diff --git a/drivers/net/ena/base/ena_eth_com.c b/drivers/net/ena/base/ena_eth_com.c
new file mode 100644
index 0000000..2f4eb8d
--- /dev/null
+++ b/drivers/net/ena/base/ena_eth_com.c
@@ -0,0 +1,503 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "ena_eth_com.h"
+
+static inline struct ena_eth_io_rx_cdesc_base *ena_com_get_next_rx_cdesc(
+ struct ena_com_io_cq *io_cq)
+{
+ struct ena_eth_io_rx_cdesc_base *cdesc;
+ u16 expected_phase, head_masked;
+ u16 desc_phase;
+
+ head_masked = io_cq->head & (io_cq->q_depth - 1);
+ expected_phase = io_cq->phase;
+
+ cdesc = (struct ena_eth_io_rx_cdesc_base *)
+ ((unsigned char*)io_cq->cdesc_addr.virt_addr
+ + (head_masked * io_cq->cdesc_entry_size_in_bytes));
+
+ desc_phase = (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK) >>
+ ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT;
+
+ if (desc_phase != expected_phase)
+ return NULL;
+
+ return cdesc;
+}
+
+static inline void ena_com_cq_inc_head(struct ena_com_io_cq *io_cq)
+{
+ io_cq->head++;
+
+ /* Switch phase bit in case of wrap around */
+ if (unlikely((io_cq->head & (io_cq->q_depth - 1)) == 0))
+ io_cq->phase = 1 - io_cq->phase;
+}
+
+static inline void *get_sq_desc(struct ena_com_io_sq *io_sq)
+{
+ u16 tail_masked;
+ u32 offset;
+
+ tail_masked = io_sq->tail & (io_sq->q_depth - 1);
+
+ offset = tail_masked * io_sq->desc_entry_size;
+
+ return (unsigned char*)io_sq->desc_addr.virt_addr + offset;
+}
+
+static inline void ena_com_copy_curr_sq_desc_to_dev(struct ena_com_io_sq *io_sq)
+{
+ u16 tail_masked = io_sq->tail & (io_sq->q_depth - 1);
+ u32 offset = tail_masked * io_sq->desc_entry_size;
+
+ /* In case this queue isn't a LLQ */
+ if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
+ return;
+
+ memcpy_toio((unsigned char*)io_sq->desc_addr.pbuf_dev_addr + offset,
+ (unsigned char*)io_sq->desc_addr.virt_addr + offset,
+ io_sq->desc_entry_size);
+}
+
+static inline void ena_com_sq_update_tail(struct ena_com_io_sq *io_sq)
+{
+ io_sq->tail++;
+
+ /* Switch phase bit in case of wrap around */
+ if (unlikely((io_sq->tail & (io_sq->q_depth - 1)) == 0))
+ io_sq->phase = 1 - io_sq->phase;
+}
+
+static inline int ena_com_write_header(struct ena_com_io_sq *io_sq,
+ u8 *head_src, u16 header_len)
+{
+ u16 tail_masked = io_sq->tail & (io_sq->q_depth - 1);
+ u8 __iomem *dev_head_addr =
+ io_sq->header_addr + (tail_masked * ENA_MAX_PUSH_PKT_SIZE);
+
+ if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
+ return 0;
+
+ ENA_ASSERT(io_sq->header_addr, "header address is NULL\n");
+
+ if (unlikely(header_len > ENA_MAX_PUSH_PKT_SIZE)) {
+ ena_trc_err("header size is too large\n");
+ return ENA_COM_INVAL;
+ }
+
+ memcpy_toio(dev_head_addr, head_src, header_len);
+
+ return 0;
+}
+
+static inline struct ena_eth_io_rx_cdesc_base *
+ ena_com_rx_cdesc_idx_to_ptr(struct ena_com_io_cq *io_cq, u16 idx)
+{
+ idx &= (io_cq->q_depth - 1);
+ return (struct ena_eth_io_rx_cdesc_base *)
+ ((unsigned char*)io_cq->cdesc_addr.virt_addr +
+ idx * io_cq->cdesc_entry_size_in_bytes);
+}
+
+static inline int ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq,
+ u16 *first_cdesc_idx,
+ u16 *nb_hw_desc)
+{
+ struct ena_eth_io_rx_cdesc_base *cdesc;
+ u16 count = 0, head_masked;
+ u32 last = 0;
+
+ do {
+ cdesc = ena_com_get_next_rx_cdesc(io_cq);
+ if (!cdesc)
+ break;
+
+ ena_com_cq_inc_head(io_cq);
+ count++;
+ last = (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) >>
+ ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT;
+ } while (!last);
+
+ if (last) {
+ *first_cdesc_idx = io_cq->cur_rx_pkt_cdesc_start_idx;
+ count += io_cq->cur_rx_pkt_cdesc_count;
+
+ head_masked = io_cq->head & (io_cq->q_depth - 1);
+
+ io_cq->cur_rx_pkt_cdesc_count = 0;
+ io_cq->cur_rx_pkt_cdesc_start_idx = head_masked;
+
+ ena_trc_dbg("ena q_id: %d packets were completed. first desc idx %u descs# %d\n",
+ io_cq->qid, *first_cdesc_idx, count);
+ } else {
+ io_cq->cur_rx_pkt_cdesc_count += count;
+ count = 0;
+ }
+
+ *nb_hw_desc = count;
+ return 0;
+}
+
+static inline bool ena_com_meta_desc_changed(struct ena_com_io_sq *io_sq,
+ struct ena_com_tx_ctx *ena_tx_ctx)
+{
+ int rc;
+
+ if (ena_tx_ctx->meta_valid) {
+ rc = memcmp(&io_sq->cached_tx_meta,
+ &ena_tx_ctx->ena_meta,
+ sizeof(struct ena_com_tx_meta));
+
+ if (unlikely(rc != 0))
+ return true;
+ }
+
+ return false;
+}
+
+static inline void ena_com_create_and_store_tx_meta_desc(
+ struct ena_com_io_sq *io_sq,
+ struct ena_com_tx_ctx *ena_tx_ctx)
+{
+ struct ena_eth_io_tx_meta_desc *meta_desc = NULL;
+ struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
+
+ meta_desc = get_sq_desc(io_sq);
+ memset(meta_desc, 0x0, sizeof(struct ena_eth_io_tx_meta_desc));
+
+ meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_DESC_MASK;
+
+ meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK;
+
+ /* bits 0-9 of the mss */
+ meta_desc->word2 |= (ena_meta->mss <<
+ ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT) &
+ ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK;
+ /* bits 10-13 of the mss */
+ meta_desc->len_ctrl |= ((ena_meta->mss >> 10) <<
+ ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_SHIFT) &
+ ENA_ETH_IO_TX_META_DESC_MSS_HI_PTP_MASK;
+
+ /* Extended meta desc */
+ meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK;
+ meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_STORE_MASK;
+ meta_desc->len_ctrl |= (io_sq->phase <<
+ ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT) &
+ ENA_ETH_IO_TX_META_DESC_PHASE_MASK;
+
+ meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_FIRST_MASK;
+ meta_desc->word2 |= ena_meta->l3_hdr_len &
+ ENA_ETH_IO_TX_META_DESC_L3_HDR_LEN_MASK;
+ meta_desc->word2 |= (ena_meta->l3_hdr_offset <<
+ ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT) &
+ ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK;
+
+ meta_desc->word2 |= (ena_meta->l4_hdr_len <<
+ ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT) &
+ ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK;
+
+ meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_STORE_MASK;
+
+ /* Cached the meta desc */
+ memcpy(&io_sq->cached_tx_meta, ena_meta,
+ sizeof(struct ena_com_tx_meta));
+
+ ena_com_copy_curr_sq_desc_to_dev(io_sq);
+ ena_com_sq_update_tail(io_sq);
+}
+
+static inline void ena_com_rx_set_flags(struct ena_com_rx_ctx *ena_rx_ctx,
+ struct ena_eth_io_rx_cdesc_base *cdesc)
+{
+ ena_rx_ctx->l3_proto = cdesc->status &
+ ENA_ETH_IO_RX_CDESC_BASE_L3_PROTO_IDX_MASK;
+ ena_rx_ctx->l4_proto =
+ (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK) >>
+ ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT;
+ ena_rx_ctx->l3_csum_err =
+ (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >>
+ ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT;
+ ena_rx_ctx->l4_csum_err =
+ (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >>
+ ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT;
+ ena_rx_ctx->hash = cdesc->hash;
+ ena_rx_ctx->frag =
+ (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) >>
+ ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT;
+
+ ena_trc_dbg("ena_rx_ctx->l3_proto %d ena_rx_ctx->l4_proto %d\nena_rx_ctx->l3_csum_err %d ena_rx_ctx->l4_csum_err %d\nhash frag %d frag: %d cdesc_status: %x\n",
+ ena_rx_ctx->l3_proto,
+ ena_rx_ctx->l4_proto,
+ ena_rx_ctx->l3_csum_err,
+ ena_rx_ctx->l4_csum_err,
+ ena_rx_ctx->hash,
+ ena_rx_ctx->frag,
+ cdesc->status);
+}
+
+/*****************************************************************************/
+/***************************** API **********************************/
+/*****************************************************************************/
+
+int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
+ struct ena_com_tx_ctx *ena_tx_ctx,
+ int *nb_hw_desc)
+{
+ struct ena_eth_io_tx_desc *desc = NULL;
+ struct ena_com_buf *ena_bufs = ena_tx_ctx->ena_bufs;
+ void *push_header = ena_tx_ctx->push_header;
+ u16 header_len = ena_tx_ctx->header_len;
+ u16 num_bufs = ena_tx_ctx->num_bufs;
+ int total_desc, i, rc;
+ bool have_meta;
+ u64 addr_hi;
+
+ ENA_ASSERT(io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_TX,
+ "wrong Q type");
+
+ /* num_bufs +1 for potential meta desc */
+ if (ena_com_sq_empty_space(io_sq) < (num_bufs + 1)) {
+ ena_trc_err("Not enough space in the tx queue\n");
+ return ENA_COM_NO_MEM;
+ }
+
+ have_meta = ena_tx_ctx->meta_valid && ena_com_meta_desc_changed(io_sq,
+ ena_tx_ctx);
+ if (have_meta)
+ ena_com_create_and_store_tx_meta_desc(io_sq, ena_tx_ctx);
+
+ if (unlikely(!num_bufs))
+ return have_meta ? 0 : 1;
+
+ /* start with pushing the header (if needed) */
+ rc = ena_com_write_header(io_sq, push_header, header_len);
+ if (unlikely(rc))
+ return rc;
+
+ desc = get_sq_desc(io_sq);
+ memset(desc, 0x0, sizeof(struct ena_eth_io_tx_desc));
+
+ /* Set first desc when we don't have meta descriptor */
+ if (!have_meta)
+ desc->len_ctrl |= ENA_ETH_IO_TX_DESC_FIRST_MASK;
+
+ desc->buff_addr_hi_hdr_sz |= (header_len <<
+ ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT) &
+ ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK;
+ desc->len_ctrl |= (io_sq->phase << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
+ ENA_ETH_IO_TX_DESC_PHASE_MASK;
+
+ desc->len_ctrl |= ENA_ETH_IO_TX_DESC_COMP_REQ_MASK;
+
+ /* Bits 0-9 */
+ desc->meta_ctrl |= (ena_tx_ctx->req_id <<
+ ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT) &
+ ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK;
+
+ desc->meta_ctrl |= (ena_tx_ctx->df <<
+ ENA_ETH_IO_TX_DESC_DF_SHIFT) &
+ ENA_ETH_IO_TX_DESC_DF_MASK;
+
+ /* Bits 10-15 */
+ desc->len_ctrl |= ((ena_tx_ctx->req_id >> 10) <<
+ ENA_ETH_IO_TX_DESC_REQ_ID_HI_SHIFT) &
+ ENA_ETH_IO_TX_DESC_REQ_ID_HI_MASK;
+
+ if (ena_tx_ctx->meta_valid) {
+ desc->meta_ctrl |= (ena_tx_ctx->tso_enable <<
+ ENA_ETH_IO_TX_DESC_TSO_EN_SHIFT) &
+ ENA_ETH_IO_TX_DESC_TSO_EN_MASK;
+ desc->meta_ctrl |= ena_tx_ctx->l3_proto &
+ ENA_ETH_IO_TX_DESC_L3_PROTO_IDX_MASK;
+ desc->meta_ctrl |= (ena_tx_ctx->l4_proto <<
+ ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_SHIFT) &
+ ENA_ETH_IO_TX_DESC_L4_PROTO_IDX_MASK;
+ desc->meta_ctrl |= (ena_tx_ctx->l3_csum_enable <<
+ ENA_ETH_IO_TX_DESC_L3_CSUM_EN_SHIFT) &
+ ENA_ETH_IO_TX_DESC_L3_CSUM_EN_MASK;
+ desc->meta_ctrl |= (ena_tx_ctx->l4_csum_enable <<
+ ENA_ETH_IO_TX_DESC_L4_CSUM_EN_SHIFT) &
+ ENA_ETH_IO_TX_DESC_L4_CSUM_EN_MASK;
+ desc->meta_ctrl |= (ena_tx_ctx->l4_csum_partial <<
+ ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_SHIFT) &
+ ENA_ETH_IO_TX_DESC_L4_CSUM_PARTIAL_MASK;
+ }
+
+ for (i = 0; i < num_bufs; i++) {
+ /* The first desc share the same desc as the header */
+ if (likely(i != 0)) {
+ ena_com_copy_curr_sq_desc_to_dev(io_sq);
+ ena_com_sq_update_tail(io_sq);
+
+ desc = get_sq_desc(io_sq);
+ memset(desc, 0x0, sizeof(struct ena_eth_io_tx_desc));
+
+ desc->len_ctrl |= (io_sq->phase <<
+ ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
+ ENA_ETH_IO_TX_DESC_PHASE_MASK;
+ }
+
+ desc->len_ctrl |= ena_bufs->len &
+ ENA_ETH_IO_TX_DESC_LENGTH_MASK;
+
+ addr_hi = ((ena_bufs->paddr &
+ GENMASK_ULL(io_sq->dma_addr_bits - 1, 32)) >> 32);
+
+ desc->buff_addr_lo = (u32)ena_bufs->paddr;
+ desc->buff_addr_hi_hdr_sz |= addr_hi &
+ ENA_ETH_IO_TX_DESC_ADDR_HI_MASK;
+ ena_bufs++;
+ }
+
+ /* set the last desc indicator */
+ desc->len_ctrl |= ENA_ETH_IO_TX_DESC_LAST_MASK;
+
+ ena_com_copy_curr_sq_desc_to_dev(io_sq);
+
+ ena_com_sq_update_tail(io_sq);
+
+ total_desc = ENA_MAX16(num_bufs, 1);
+ total_desc += have_meta ? 1 : 0;
+
+ *nb_hw_desc = total_desc;
+ return 0;
+}
+
+int ena_com_rx_pkt(struct ena_com_io_cq *io_cq,
+ struct ena_com_io_sq *io_sq,
+ struct ena_com_rx_ctx *ena_rx_ctx)
+{
+ struct ena_com_rx_buf_info *ena_buf = &ena_rx_ctx->ena_bufs[0];
+ struct ena_eth_io_rx_cdesc_base *cdesc = NULL;
+ u16 cdesc_idx = 0;
+ u16 nb_hw_desc;
+ u16 i;
+ int rc;
+
+ ENA_ASSERT(io_cq->direction == ENA_COM_IO_QUEUE_DIRECTION_RX,
+ "wrong Q type");
+
+ rc = ena_com_cdesc_rx_pkt_get(io_cq, &cdesc_idx, &nb_hw_desc);
+ if (rc || (nb_hw_desc == 0)) {
+ ena_rx_ctx->descs = nb_hw_desc;
+ return rc;
+ }
+
+ ena_trc_dbg("fetch rx packet: queue %d completed desc: %d\n",
+ io_cq->qid, nb_hw_desc);
+
+ if (unlikely(nb_hw_desc >= ena_rx_ctx->max_bufs)) {
+ ena_trc_err("Too many RX cdescs (%d) > MAX(%d)\n",
+ nb_hw_desc, ena_rx_ctx->max_bufs);
+ return ENA_COM_NO_SPACE;
+ }
+
+ for (i = 0; i < nb_hw_desc; i++) {
+ cdesc = ena_com_rx_cdesc_idx_to_ptr(io_cq, cdesc_idx + i);
+
+ ena_buf->len = cdesc->length;
+ ena_buf->req_id = cdesc->req_id;
+ ena_buf++;
+ }
+
+ /* Update SQ head ptr */
+ io_sq->next_to_comp += nb_hw_desc;
+
+ ena_trc_dbg("[%s][QID#%d] Updating SQ head to: %d\n", __func__,
+ io_sq->qid, io_sq->next_to_comp);
+
+ /* Get rx flags from the last pkt */
+ ena_com_rx_set_flags(ena_rx_ctx, cdesc);
+
+ ena_rx_ctx->descs = nb_hw_desc;
+ return 0;
+}
+
+int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq,
+ struct ena_com_buf *ena_buf,
+ u16 req_id)
+{
+ struct ena_eth_io_rx_desc *desc;
+
+ ENA_ASSERT(io_sq->direction == ENA_COM_IO_QUEUE_DIRECTION_RX,
+ "wrong Q type");
+
+ if (unlikely(ena_com_sq_empty_space(io_sq) == 0))
+ return -1;
+
+ desc = get_sq_desc(io_sq);
+ memset(desc, 0x0, sizeof(struct ena_eth_io_rx_desc));
+
+ desc->length = ena_buf->len;
+
+ desc->ctrl |= ENA_ETH_IO_RX_DESC_FIRST_MASK;
+ desc->ctrl |= ENA_ETH_IO_RX_DESC_LAST_MASK;
+ desc->ctrl |= io_sq->phase & ENA_ETH_IO_RX_DESC_PHASE_MASK;
+ desc->ctrl |= ENA_ETH_IO_RX_DESC_COMP_REQ_MASK;
+
+ desc->req_id = req_id;
+
+ desc->buff_addr_lo = (u32)ena_buf->paddr;
+ desc->buff_addr_hi =
+ ((ena_buf->paddr & GENMASK_ULL(io_sq->dma_addr_bits - 1, 32)) >> 32);
+
+ ena_com_sq_update_tail(io_sq);
+
+ return 0;
+}
+
+int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq, u16 *req_id)
+{
+ u8 expected_phase, cdesc_phase;
+ struct ena_eth_io_tx_cdesc *cdesc;
+ u16 masked_head;
+
+ masked_head = io_cq->head & (io_cq->q_depth - 1);
+ expected_phase = io_cq->phase;
+
+ cdesc = (struct ena_eth_io_tx_cdesc *)
+ ((unsigned char*)io_cq->cdesc_addr.virt_addr
+ + (masked_head * io_cq->cdesc_entry_size_in_bytes));
+
+ cdesc_phase = cdesc->flags & ENA_ETH_IO_TX_CDESC_PHASE_MASK;
+ if (cdesc_phase != expected_phase)
+ return -1;
+
+ ena_com_cq_inc_head(io_cq);
+
+ *req_id = cdesc->req_id;
+
+ return 0;
+}
diff --git a/drivers/net/ena/base/ena_eth_com.h b/drivers/net/ena/base/ena_eth_com.h
new file mode 100644
index 0000000..73ae91b
--- /dev/null
+++ b/drivers/net/ena/base/ena_eth_com.h
@@ -0,0 +1,131 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef ENA_ETH_COM_H_
+#define ENA_ETH_COM_H_
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+#include "ena_com.h"
+
+#define ENA_MAX_PUSH_PKT_SIZE 128
+
+struct ena_com_tx_ctx {
+ struct ena_com_tx_meta ena_meta;
+ struct ena_com_buf *ena_bufs;
+ /* For LLQ, header buffer - pushed to the device mem space */
+ void *push_header;
+
+ enum ena_eth_io_l3_proto_index l3_proto;
+ enum ena_eth_io_l4_proto_index l4_proto;
+ u16 num_bufs;
+ u16 req_id;
+ /* For regular queue, indicate the size of the header
+ * For LLQ, indicate the size of the pushed buffer
+ */
+ u16 header_len;
+
+ int meta_valid;
+ int tso_enable;
+ int l3_csum_enable;
+ int l4_csum_enable;
+ int l4_csum_partial;
+ int df; /* Don't fragment */
+};
+
+struct ena_com_rx_ctx {
+ struct ena_com_rx_buf_info *ena_bufs;
+ enum ena_eth_io_l3_proto_index l3_proto;
+ enum ena_eth_io_l4_proto_index l4_proto;
+ bool l3_csum_err;
+ bool l4_csum_err;
+ /* fragmented packet */
+ bool frag;
+ u32 hash;
+ u16 descs;
+ int max_bufs;
+};
+
+int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
+ struct ena_com_tx_ctx *ena_tx_ctx,
+ int *nb_hw_desc);
+
+int ena_com_rx_pkt(struct ena_com_io_cq *io_cq,
+ struct ena_com_io_sq *io_sq,
+ struct ena_com_rx_ctx *ena_rx_ctx);
+
+int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq,
+ struct ena_com_buf *ena_buf,
+ u16 req_id);
+
+int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq, u16 *req_id);
+
+static inline void ena_com_unmask_intr(struct ena_com_io_cq *io_cq)
+{
+ writel(io_cq->unmask_val, io_cq->unmask_reg);
+}
+
+static inline int ena_com_sq_empty_space(struct ena_com_io_sq *io_sq)
+{
+ u16 tail, next_to_comp, cnt;
+
+ next_to_comp = io_sq->next_to_comp;
+ tail = io_sq->tail;
+ cnt = tail - next_to_comp;
+
+ return io_sq->q_depth - 1 - cnt;
+}
+
+static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq)
+{
+ u16 tail;
+
+ tail = io_sq->tail;
+
+ ena_trc_dbg("write db for queue: %d tail: %d\n", io_sq->qid, tail);
+
+ ENA_REG_WRITE32(tail, io_sq->db_addr);
+
+ return 0;
+}
+
+static inline void ena_com_comp_ack(struct ena_com_io_sq *io_sq, u16 elem)
+{
+ io_sq->next_to_comp += elem;
+}
+
+#if defined(__cplusplus)
+}
+#endif
+#endif /* ENA_ETH_COM_H_ */
diff --git a/drivers/net/ena/base/ena_plat.h b/drivers/net/ena/base/ena_plat.h
new file mode 100644
index 0000000..278175f
--- /dev/null
+++ b/drivers/net/ena/base/ena_plat.h
@@ -0,0 +1,51 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef ENA_PLAT_H_
+#define ENA_PLAT_H_
+
+#if defined(ENA_IPXE)
+#include "ena_plat_ipxe.h"
+#elif defined(__linux__)
+#if defined(__KERNEL__)
+#include "ena_plat_linux.h"
+#else
+#include "ena_plat_dpdk.h"
+#endif
+#elif defined(_WIN32)
+#include "ena_plat_windows.h"
+#else
+#error "Invalid platform"
+#endif
+
+#endif /* ENA_PLAT_H_ */
--
1.9.1
^ permalink raw reply [flat|nested] 11+ messages in thread* [dpdk-dev] [PATCH v2 4/4] DPDK polling-mode driver for Amazon Elastic Network Adapters (ENA)
2016-02-05 18:20 [dpdk-dev] [PATCH v2 0/4] DPDK polling-mode driver for Amazon Elastic Network Adapters (ENA) Jan Medala
` (2 preceding siblings ...)
2016-02-05 18:20 ` [dpdk-dev] [PATCH v2 3/4] Amazon ENA communication layer for DPDK platform Jan Medala
@ 2016-02-05 18:20 ` Jan Medala
2016-02-15 9:25 ` Jan Mędala
3 siblings, 1 reply; 11+ messages in thread
From: Jan Medala @ 2016-02-05 18:20 UTC (permalink / raw)
To: dev; +Cc: Evgeny Schemeilin, matua
This is a PMD for the Amazon ethernet ENA family.
The driver operates variety of ENA adapters through feature negotiation with the adapter and upgradable commands set.
ENA driver handles PCI Physical and Virtual ENA functions.
Signed-off-by: Evgeny Schemeilin <evgenys@amazon.com>
Signed-off-by: Jan Medala <jan@semihalf.com>
Signed-off-by: Jakub Palider <jpa@semihalf.com>
---
config/common_linuxapp | 12 +
drivers/net/Makefile | 1 +
drivers/net/ena/Makefile | 62 +++
drivers/net/ena/ena_ethdev.c | 1129 ++++++++++++++++++++++++++++++++++++++++
drivers/net/ena/ena_ethdev.h | 151 ++++++
drivers/net/ena/ena_logs.h | 76 +++
drivers/net/ena/ena_platform.h | 58 +++
mk/rte.app.mk | 1 +
8 files changed, 1490 insertions(+)
create mode 100755 drivers/net/ena/Makefile
create mode 100644 drivers/net/ena/ena_ethdev.c
create mode 100755 drivers/net/ena/ena_ethdev.h
create mode 100644 drivers/net/ena/ena_logs.h
create mode 100644 drivers/net/ena/ena_platform.h
diff --git a/config/common_linuxapp b/config/common_linuxapp
index 74bc515..261a54f 100644
--- a/config/common_linuxapp
+++ b/config/common_linuxapp
@@ -249,6 +249,18 @@ CONFIG_RTE_LIBRTE_CXGBE_DEBUG_TX=n
CONFIG_RTE_LIBRTE_CXGBE_DEBUG_RX=n
#
+# Compile burst-oriented Amazon ENA PMD driver
+#
+CONFIG_RTE_LIBRTE_ENA_PMD=y
+CONFIG_RTE_LIBRTE_ENA_DEBUG_INIT=y
+CONFIG_RTE_LIBRTE_ENA_DEBUG_RX=n
+CONFIG_RTE_LIBRTE_ENA_DEBUG_TX=n
+CONFIG_RTE_LIBRTE_ENA_DEBUG_TX_FREE=n
+CONFIG_RTE_LIBRTE_ENA_DEBUG_DRIVER=n
+CONFIG_RTE_LIBRTE_ENA_COM_DEBUG=n
+CONFIG_RTE_EAL_ENA_UIO=y
+
+#
# Compile burst-oriented Cisco ENIC PMD driver
#
CONFIG_RTE_LIBRTE_ENIC_PMD=y
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 6e4497e..8f2649f 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -36,6 +36,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_BNX2X_PMD) += bnx2x
DIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += bonding
DIRS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += cxgbe
DIRS-$(CONFIG_RTE_LIBRTE_E1000_PMD) += e1000
+DIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena
DIRS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic
DIRS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k
DIRS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e
diff --git a/drivers/net/ena/Makefile b/drivers/net/ena/Makefile
new file mode 100755
index 0000000..960e4cd
--- /dev/null
+++ b/drivers/net/ena/Makefile
@@ -0,0 +1,62 @@
+#
+# BSD LICENSE
+#
+# Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in
+# the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of copyright holder nor the names of its
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_ena.a
+CFLAGS += $(WERROR_FLAGS) -O2
+INCLUDES :=-I$(SRCDIR) -I$(SRCDIR)/base/ena_defs -I$(SRCDIR)/base
+
+VPATH += $(SRCDIR)/base
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena_com.c
+SRCS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += ena_eth_com.c
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += lib/librte_eal lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += lib/librte_mempool lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += lib/librte_net lib/librte_malloc
+
+ifeq ($(CONFIG_RTE_EXEC_ENV),"cvos")
+CFLAGS += -Wno-old-style-definition
+endif
+
+CFLAGS += $(INCLUDES)
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
new file mode 100644
index 0000000..bfa212d
--- /dev/null
+++ b/drivers/net/ena/ena_ethdev.c
@@ -0,0 +1,1129 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_tcp.h>
+#include <rte_atomic.h>
+#include <rte_dev.h>
+#include <rte_errno.h>
+
+#include "ena_ethdev.h"
+#include "ena_logs.h"
+#include "ena_platform.h"
+#include "ena_com.h"
+#include "ena_eth_com.h"
+
+#include <ena_common_defs.h>
+#include <ena_regs_defs.h>
+#include <ena_admin_defs.h>
+#include <ena_eth_io_defs.h>
+
+#define ENA_IO_TXQ_IDX(q) (2 * (q))
+#define ENA_IO_RXQ_IDX(q) (2 * (q) + 1)
+
+#define ENA_MAX_MTU (ENA_MAX_FRAME_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
+
+/* While processing submitted and completed desciptors (rx and tx path
+ * respectively) in a loop it is desired to:
+ * - perform batch submissions while populating sumbissmion queue
+ * - avoid blocking transmission of other packets during cleanup phase
+ * Hence the utilization ratio of 1/8 of a queue size.
+ */
+#define ENA_RING_DESCS_RATIO(ring_size) (ring_size / 8)
+
+#define __MERGE_64B_H_L(h, l) (((long)h << 32) | l )
+
+static struct rte_pci_id pci_id_ena_map[] = {
+#define RTE_PCI_DEV_ID_DECL_ENA(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
+#include "rte_pci_dev_ids.h"
+ {.device_id = 0},
+};
+
+static int ena_device_init(struct ena_com_dev *ena_dev,
+ struct ena_com_dev_get_features_ctx *get_feat_ctx);
+static int ena_dev_configure(struct rte_eth_dev *dev);
+static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
+ uint16_t nb_desc, unsigned int socket_id,
+ const struct rte_eth_txconf *tx_conf);
+static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
+ uint16_t nb_desc, unsigned int socket_id,
+ const struct rte_eth_rxconf *rx_conf, struct rte_mempool *mp);
+static uint16_t eth_ena_recv_pkts(void *rx_queue,
+ struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count);
+static void ena_init_rings(struct ena_adapter *adapter);
+static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
+static int ena_start(struct rte_eth_dev *dev);
+static void ena_close(struct rte_eth_dev *dev);
+static void ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
+static void ena_rx_queue_release_all(struct rte_eth_dev *dev);
+static void ena_tx_queue_release_all(struct rte_eth_dev *dev);
+static void ena_rx_queue_release(void *queue);
+static void ena_tx_queue_release(void *queue);
+static void ena_rx_queue_release_bufs(struct ena_ring *ring);
+static void ena_tx_queue_release_bufs(struct ena_ring *ring);
+static int ena_link_update(struct rte_eth_dev *dev,
+ __attribute__((unused))int wait_to_complete);
+static int ena_queue_restart(struct ena_ring *ring) ;
+static int ena_queue_restart_all(struct rte_eth_dev *dev,
+ enum ena_ring_type ring_type);
+static void ena_stats_restart(struct rte_eth_dev *dev);
+static void ena_infos_get(__attribute__((unused))struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info);
+
+static struct eth_dev_ops ena_dev_ops = {
+ .dev_configure = ena_dev_configure,
+ .dev_infos_get = ena_infos_get,
+ .rx_queue_setup = ena_rx_queue_setup,
+ .tx_queue_setup = ena_tx_queue_setup,
+ .dev_start = ena_start,
+ .link_update = ena_link_update,
+ .stats_get = ena_stats_get,
+ .mtu_set = ena_mtu_set,
+ .rx_queue_release = ena_rx_queue_release,
+ .tx_queue_release = ena_tx_queue_release,
+ .dev_close = ena_close,
+};
+
+static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
+ struct ena_com_rx_ctx *ena_rx_ctx)
+{
+ uint64_t ol_flags = 0;
+
+ if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_TCP) {
+ ol_flags |= PKT_TX_TCP_CKSUM;
+ } else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP) {
+ ol_flags |= PKT_TX_UDP_CKSUM;
+ }
+
+ if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4) {
+ ol_flags |= PKT_TX_IPV4;
+ } else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6) {
+ ol_flags |= PKT_TX_IPV6;
+ }
+
+ if (unlikely(ena_rx_ctx->l4_csum_err))
+ ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ if (unlikely(ena_rx_ctx->l3_csum_err))
+ ol_flags |= PKT_RX_IP_CKSUM_BAD;
+
+ mbuf->ol_flags = ol_flags;
+
+ return;
+}
+
+static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
+ struct ena_com_tx_ctx *ena_tx_ctx)
+{
+ struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
+
+ if (mbuf->ol_flags & (PKT_TX_L4_MASK || PKT_TX_IP_CKSUM ||
+ PKT_TX_TCP_SEG)) {
+
+ /* check if TSO is required */
+ if (mbuf->ol_flags & PKT_TX_TCP_SEG) {
+ ena_tx_ctx->tso_enable = true;
+
+ ena_meta->l4_hdr_len = ((rte_pktmbuf_mtod_offset(mbuf, struct tcp_hdr*,
+ mbuf->l3_len + mbuf->l2_len)->data_off) >> 4);
+ }
+
+ /* check if L3 checksum is needed */
+ if (mbuf->ol_flags & PKT_TX_IP_CKSUM)
+ ena_tx_ctx->l3_csum_enable = true;
+
+ if (mbuf->ol_flags & PKT_TX_IPV6) {
+ ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6;
+ } else {
+ ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4;
+
+ /* set don't fragment (DF) flag */
+ if (mbuf->packet_type & (RTE_PTYPE_L4_NONFRAG ||
+ RTE_PTYPE_INNER_L4_NONFRAG))
+ ena_tx_ctx->df = true;
+ }
+
+ /* check if L4 checksum is needed */
+ switch (mbuf->ol_flags & PKT_TX_L4_MASK) {
+ case PKT_TX_TCP_CKSUM:
+ ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP;
+ ena_tx_ctx->l4_csum_enable = true;
+ break;
+ case PKT_TX_UDP_CKSUM:
+ ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP;
+ ena_tx_ctx->l4_csum_enable = true;
+ break;
+ default:
+ ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN;
+ ena_tx_ctx->l4_csum_enable = false;
+ break;
+ }
+
+ ena_meta->mss = mbuf->tso_segsz;
+ ena_meta->l3_hdr_len = mbuf->l3_len;
+ ena_meta->l3_hdr_offset = mbuf->l2_len;
+ /* this param needed only for TSO */
+ ena_meta->l3_outer_hdr_len = 0;
+ ena_meta->l3_outer_hdr_offset = 0;
+
+ ena_tx_ctx->meta_valid = true;
+ } else {
+ ena_tx_ctx->meta_valid = false;
+ }
+
+ return;
+}
+
+static void ena_close(struct rte_eth_dev *dev)
+{
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+
+ adapter->state = ENA_ADAPTER_STATE_STOPPED;
+
+ ena_rx_queue_release_all(dev);
+ ena_tx_queue_release_all(dev);
+
+ return;
+}
+
+static void ena_rx_queue_release_all(struct rte_eth_dev *dev)
+{
+ struct ena_ring **queues = (struct ena_ring**)dev->data->rx_queues;
+ int nb_queues = dev->data->nb_rx_queues;
+ int i;
+
+ for (i = 0; i < nb_queues; i++)
+ ena_rx_queue_release(queues[i]);
+
+ return;
+}
+
+static void ena_tx_queue_release_all(struct rte_eth_dev *dev)
+{
+ struct ena_ring **queues = (struct ena_ring**)dev->data->tx_queues;
+ int nb_queues = dev->data->nb_tx_queues;
+ int i;
+
+ for (i = 0; i < nb_queues; i++)
+ ena_tx_queue_release(queues[i]);
+
+ return;
+}
+
+static void ena_rx_queue_release(void *queue)
+{
+ struct ena_ring *ring = (struct ena_ring*)queue;
+ struct ena_adapter *adapter = ring->adapter;
+ int ena_qid;
+
+ ena_assert_msg(ring->configured, "API violation. "
+ "Trying to release not configured queue");
+ ena_assert_msg(ring->adapter->state != ENA_ADAPTER_STATE_RUNING,
+ "API violation");
+
+ /* Destroy HW queue */
+ ena_qid = ENA_IO_RXQ_IDX(ring->id);
+ ena_com_destroy_io_queue(&adapter->ena_dev, ena_qid);
+
+ /* Free all bufs */
+ ena_rx_queue_release_bufs(ring);
+
+ /* Free ring resources */
+ if (ring->rx_buffer_info)
+ rte_free(ring->rx_buffer_info);
+ ring->rx_buffer_info = NULL;
+
+ ring->configured = 0;
+
+ RTE_LOG(NOTICE, PMD, "RX Queue %d:%d released \n", ring->port_id, ring->id);
+ return;
+}
+
+static void ena_tx_queue_release(void *queue)
+{
+ struct ena_ring *ring = (struct ena_ring*) queue;
+ struct ena_adapter *adapter = ring->adapter;
+ int ena_qid;
+
+ ena_assert_msg(ring->configured, "API violation. Trying to release "
+ "not configured queue");
+ ena_assert_msg(ring->adapter->state != ENA_ADAPTER_STATE_RUNING,
+ "API violation");
+
+ /* Destroy HW queue */
+ ena_qid = ENA_IO_TXQ_IDX(ring->id);
+ ena_com_destroy_io_queue(&adapter->ena_dev, ena_qid);
+
+ /* Free all bufs */
+ ena_tx_queue_release_bufs(ring);
+
+ /* Free ring resources */
+ if (ring->tx_buffer_info)
+ rte_free(ring->tx_buffer_info);
+
+ if (ring->empty_tx_reqs)
+ rte_free(ring->empty_tx_reqs);
+
+ ring->empty_tx_reqs = NULL;
+ ring->tx_buffer_info = NULL;
+
+ ring->configured = 0;
+
+ RTE_LOG(NOTICE, PMD, "TX Queue %d:%d released \n", ring->port_id, ring->id);
+ return;
+}
+
+static void ena_rx_queue_release_bufs(struct ena_ring *ring)
+{
+ unsigned int ring_mask = ring->ring_size - 1;
+
+ while (ring->next_to_clean != ring->next_to_use) {
+ struct rte_mbuf *m = ring->rx_buffer_info[ring->next_to_clean & ring_mask];
+
+ if (m)
+ __rte_mbuf_raw_free(m);
+
+ ring->next_to_clean = ENA_CIRC_INC(ring->next_to_clean, 1, ring->ring_size);
+ }
+
+ return;
+}
+
+static void ena_tx_queue_release_bufs(struct ena_ring *ring)
+{
+ unsigned int ring_mask = ring->ring_size - 1;
+
+ while (ring->next_to_clean != ring->next_to_use) {
+ struct ena_tx_buffer* tx_buf =
+ &ring->tx_buffer_info[ring->next_to_clean & ring_mask];
+
+ if (tx_buf->mbuf)
+ rte_pktmbuf_free(tx_buf->mbuf);
+
+ ring->next_to_clean = ENA_CIRC_INC(ring->next_to_clean, 1, ring->ring_size);
+ }
+
+ return;
+}
+
+static int ena_link_update(struct rte_eth_dev *dev,
+ __attribute__((unused))int wait_to_complete)
+{
+ struct rte_eth_link *link = &dev->data->dev_link;
+
+ link->link_status = 1;
+ link->link_speed = ETH_LINK_SPEED_10G;
+ link->link_duplex = ETH_LINK_FULL_DUPLEX;
+
+ return 0;
+}
+
+static int ena_queue_restart_all(struct rte_eth_dev *dev, enum ena_ring_type ring_type)
+{
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+ struct ena_ring *queues = NULL;
+ int i = 0;
+ int rc = 0;
+
+ queues = (ring_type == ENA_RING_TYPE_RX) ? adapter->rx_ring : adapter->tx_ring;
+
+ for (i = 0; i < ENA_NUM_QUEUES; i++) {
+ if (queues[i].configured) {
+ if (ring_type == ENA_RING_TYPE_RX) {
+ ena_assert_msg(dev->data->rx_queues[i] == &queues[i],
+ "Inconsistent state of rx queues");
+ } else {
+ ena_assert_msg(dev->data->tx_queues[i] == &queues[i],
+ "Inconsistent state of tx queues");
+ }
+
+ rc = ena_queue_restart(&queues[i]);
+
+ if (rc) {
+ PMD_INIT_LOG(ERR, "failed to restart queue %d type (%d) . rc:%d\n",
+ i, ring_type, rc);
+ return -1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static uint32_t ena_get_mtu_conf(struct ena_adapter *adapter)
+{
+
+ uint32_t max_frame_len = adapter->max_mtu;
+ if (adapter->rte_eth_dev_data->dev_conf.rxmode.jumbo_frame == 1)
+ max_frame_len = adapter->rte_eth_dev_data->dev_conf.rxmode.max_rx_pkt_len;
+
+ return max_frame_len;
+}
+
+static int ena_check_valid_conf(struct ena_adapter *adapter)
+{
+ uint32_t max_frame_len = ena_get_mtu_conf(adapter);
+
+ if (max_frame_len > ENA_MAX_FRAME_LEN) {
+ PMD_INIT_LOG(ERR, "Unsupported MTU of %d\n", max_frame_len);
+ return -1;
+ }
+
+ return 0;
+
+}
+
+static void ena_stats_restart(struct rte_eth_dev *dev)
+{
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+ rte_atomic64_init(&adapter->drv_stats->ierrors);
+ rte_atomic64_init(&adapter->drv_stats->oerrors);
+ rte_atomic64_init(&adapter->drv_stats->imcasts);
+ rte_atomic64_init(&adapter->drv_stats->rx_nombuf);
+}
+
+static void ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+ struct ena_admin_basic_stats ena_stats;
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+ struct ena_com_dev *ena_dev = &adapter->ena_dev;
+ int rc;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return;
+
+ memset(&ena_stats, 0, sizeof(ena_stats));
+ rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats);
+ if (unlikely(rc)) {
+ RTE_LOG(ERR, PMD, "Could not retrieve statistics from ENA");
+ return;
+ }
+
+ /* Set of basic statistics from ENA */
+ stats->ipackets = __MERGE_64B_H_L(ena_stats.rx_pkts_high, ena_stats.rx_pkts_low);
+ stats->opackets = __MERGE_64B_H_L(ena_stats.tx_pkts_high, ena_stats.tx_pkts_low);
+ stats->ibytes = __MERGE_64B_H_L(ena_stats.rx_bytes_high, ena_stats.rx_bytes_low);
+ stats->obytes = __MERGE_64B_H_L(ena_stats.tx_bytes_high, ena_stats.tx_bytes_low);
+ stats->imissed = __MERGE_64B_H_L(ena_stats.rx_drops_high, ena_stats.rx_drops_low);
+
+ /* Driver related stats */
+ stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors);
+ stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors);
+ stats->imcasts = rte_atomic64_read(&adapter->drv_stats->imcasts);
+ stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf);
+}
+
+static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct ena_adapter *adapter;
+ struct ena_com_dev *ena_dev;
+ int rc = 0;
+
+ ena_assert_msg(dev->data != NULL, "Uninitialized device");
+ ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device");
+ adapter = (struct ena_adapter*)(dev->data->dev_private);
+
+ ena_dev = &adapter->ena_dev;
+ ena_assert_msg(ena_dev != NULL, "Uninitialized device");
+
+ if (mtu > ena_get_mtu_conf(adapter)) {
+ RTE_LOG(ERR, PMD, "Given MTU (%d) exceeds maximum MTU supported (%d)\n",
+ mtu, ena_get_mtu_conf(adapter));
+ rc = -EINVAL;
+ goto err;
+ }
+
+ rc = ena_com_set_dev_mtu(ena_dev, mtu);
+ if (rc)
+ RTE_LOG(ERR, PMD, "Could not set MTU: %d\n", mtu);
+ else
+ RTE_LOG(NOTICE, PMD, "Set MTU: %d\n", mtu);
+
+err:
+ return rc;
+}
+
+static int ena_start(struct rte_eth_dev *dev)
+{
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+ int rc = 0;
+
+ if(!(adapter->state == ENA_ADAPTER_STATE_CONFIG ||
+ adapter->state == ENA_ADAPTER_STATE_STOPPED)) {
+ PMD_INIT_LOG(ERR, "API violation");
+ return -1;
+ }
+
+ rc = ena_check_valid_conf(adapter);
+ if (rc)
+ return rc;
+
+ rc = ena_queue_restart_all(dev, ENA_RING_TYPE_RX);
+ if (rc)
+ return rc;
+
+ rc = ena_queue_restart_all(dev, ENA_RING_TYPE_TX);
+ if (rc)
+ return rc;
+
+ ena_stats_restart(dev);
+
+ adapter->state = ENA_ADAPTER_STATE_RUNING;
+
+ return 0;
+}
+
+static int ena_queue_restart(struct ena_ring *ring)
+{
+ int rc;
+
+ ena_assert_msg(ring->configured == 1, "Trying to restart unconfigured queue");
+
+ ring->next_to_clean = 0;
+ ring->next_to_use = 0;
+
+ if (ring->type == ENA_RING_TYPE_TX)
+ return 0;
+
+ rc = ena_populate_rx_queue(ring, ring->ring_size - 1);
+ if ((unsigned int)rc != ring->ring_size - 1) {
+ PMD_INIT_LOG(ERR, "Failed to populate rx ring !\n");
+ return (-1);
+ }
+
+ return 0;
+}
+
+static int ena_tx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t queue_idx,
+ uint16_t nb_desc,
+ __attribute__((unused))unsigned int socket_id,
+ __attribute__((unused))const struct rte_eth_txconf *tx_conf)
+
+{
+ struct ena_ring *txq = NULL;
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+ unsigned int i;
+ int ena_qid;
+ int rc;
+ struct ena_com_dev *ena_dev = &adapter->ena_dev;
+
+ txq = &adapter->tx_ring[queue_idx];
+
+ if (txq->configured) {
+ RTE_LOG(CRIT, PMD, "API violation. Queue %d is already configured\n",
+ queue_idx);
+ return -1;
+ }
+
+ ena_qid = ENA_IO_TXQ_IDX(queue_idx);
+ rc = ena_com_create_io_queue(ena_dev, ena_qid,
+ ENA_COM_IO_QUEUE_DIRECTION_TX,
+ ENA_ADMIN_PLACEMENT_POLICY_HOST,
+ -1 /* admin interrupts is not used */,
+ nb_desc);
+ if (rc) {
+ RTE_LOG(ERR, PMD, "failed to create io TX queue #%d (ena_qid: %d)"
+ "rc: %d\n", queue_idx, ena_qid, rc);
+ }
+ txq->ena_com_io_cq = &ena_dev->io_cq_queues[ena_qid];
+ txq->ena_com_io_sq = &ena_dev->io_sq_queues[ena_qid];
+
+ txq->port_id = dev->data->port_id;
+ txq->next_to_clean = 0;
+ txq->next_to_use = 0;
+ txq->ring_size = nb_desc;
+
+ txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
+ sizeof(struct ena_tx_buffer) * txq->ring_size,
+ RTE_CACHE_LINE_SIZE);
+ if (!txq->tx_buffer_info) {
+ RTE_LOG(ERR, PMD, "failed to alloc mem for tx buffer info\n");
+ return -ENOMEM;
+ }
+
+ txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs",
+ sizeof(u16) * txq->ring_size, RTE_CACHE_LINE_SIZE);
+ if (!txq->empty_tx_reqs) {
+ RTE_LOG(ERR, PMD, "failed to alloc mem for tx reqs\n");
+ rte_free(txq->tx_buffer_info);
+ return -ENOMEM;
+ }
+ for (i = 0; i < txq->ring_size; i++)
+ txq->empty_tx_reqs[i] = i;
+
+ /* Store pointer to this queue in upper layer */
+ txq->configured = 1;
+ dev->data->tx_queues[queue_idx] = txq;
+
+ return rc;
+}
+
+static int ena_rx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t queue_idx,
+ uint16_t nb_desc,
+ __attribute__((unused))unsigned int socket_id,
+ __attribute__((unused))const struct rte_eth_rxconf *rx_conf,
+ struct rte_mempool *mp)
+{
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+ struct ena_ring *rxq = NULL;
+ uint16_t ena_qid = 0;
+ int rc = 0;
+ struct ena_com_dev *ena_dev = &adapter->ena_dev;
+
+ rxq = &adapter->rx_ring[queue_idx];
+ if (rxq->configured) {
+ RTE_LOG(CRIT, PMD, "API violation. Queue %d is already configured\n",
+ queue_idx);
+ return -1;
+ }
+ ena_qid = ENA_IO_RXQ_IDX(queue_idx);
+ rc = ena_com_create_io_queue(ena_dev, ena_qid,
+ ENA_COM_IO_QUEUE_DIRECTION_RX,
+ ENA_ADMIN_PLACEMENT_POLICY_HOST,
+ -1 /* admin interrupts not used */,
+ nb_desc);
+ if (rc)
+ RTE_LOG(ERR, PMD, "failed to create io RX queue #%d rc: %d\n",
+ queue_idx, rc);
+
+ rxq->ena_com_io_cq = &ena_dev->io_cq_queues[ena_qid];
+ rxq->ena_com_io_sq = &ena_dev->io_sq_queues[ena_qid];
+
+ rxq->port_id = dev->data->port_id;
+ rxq->next_to_clean = 0;
+ rxq->next_to_use = 0;
+ rxq->ring_size = nb_desc;
+ rxq->mb_pool = mp;
+
+ rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info",
+ sizeof(struct rte_mbuf*) * nb_desc, RTE_CACHE_LINE_SIZE);
+ if (!rxq->rx_buffer_info) {
+ RTE_LOG(ERR, PMD, "failed to alloc mem for rx buffer info\n");
+ return -ENOMEM;
+ }
+
+ /* Store pointer to this queue in upper layer */
+ rxq->configured = 1;
+ dev->data->rx_queues[queue_idx] = rxq;
+
+ return rc;
+}
+
+static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
+{
+ unsigned int i;
+ int rc;
+ unsigned int ring_size = rxq->ring_size;
+ unsigned int ring_mask = ring_size - 1;
+ int next_to_use = rxq->next_to_use & ring_mask;
+ struct rte_mbuf ** mbufs = &rxq->rx_buffer_info[0];
+
+ if (unlikely(!count)) return 0;
+
+ ena_assert_msg((((ENA_CIRC_COUNT(rxq->next_to_use, rxq->next_to_clean,
+ rxq->ring_size)) +
+ count) < rxq->ring_size), "bad ring state");
+
+ count = RTE_MIN(count, ring_size - next_to_use);
+
+ /* get resources for incoming packets */
+ rc = rte_mempool_get_bulk(rxq->mb_pool, (void **)(&mbufs[next_to_use]), count);
+ if (unlikely(rc < 0)) {
+ rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf);
+ PMD_RX_LOG(DEBUG,"there are no enough free buffers");
+ return 0;
+ }
+
+ for (i = 0; i < count; i++) {
+ struct rte_mbuf *mbuf = mbufs[next_to_use];
+ struct ena_com_buf ebuf;
+
+ rte_prefetch0(mbufs[((next_to_use + 4) & ring_mask)]);
+ /* prepare physical address for DMA transaction */
+ ebuf.paddr = mbuf->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+ ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
+ /* pass resource to device */
+ rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq, &ebuf, next_to_use);
+ if (unlikely(rc)) {
+ RTE_LOG(WARNING, PMD, "failed adding rx desc\n");
+ break;
+ }
+ next_to_use = ENA_RX_RING_IDX_NEXT(next_to_use, ring_size);
+ }
+
+ rte_wmb();
+ rxq->next_to_use = next_to_use;
+ /* let HW know that it can fill buffers with data */
+ ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
+
+ return i;
+}
+
+static int ena_device_init(struct ena_com_dev *ena_dev,
+ struct ena_com_dev_get_features_ctx *get_feat_ctx)
+{
+ int rc;
+
+ /* Initialize mmio registers */
+ rc = ena_com_mmio_reg_read_request_init(ena_dev);
+ if (rc) {
+ RTE_LOG(ERR, PMD, "failed to init mmio read less\n");
+ return rc;
+ }
+
+ /* reset device */
+ rc = ena_com_dev_reset(ena_dev);
+ if (rc) {
+ RTE_LOG(ERR, PMD, "cannot reset device\n");
+ goto err_mmio_read_less;
+ }
+
+ /* check FW version */
+ rc = ena_com_validate_version(ena_dev);
+ if (rc) {
+ RTE_LOG(ERR, PMD, "device version is too low\n");
+ goto err_mmio_read_less;
+ }
+
+ ena_dev->dma_addr_bits = ena_com_get_dma_width(ena_dev);
+
+ /* ENA device administration layer init */
+ rc = ena_com_admin_init(ena_dev, NULL, true);
+ if (rc) {
+ RTE_LOG(ERR, PMD, "cannot initialize ena admin queue with device\n");
+ goto err_mmio_read_less;
+ }
+
+ /* To enable the msix interrupts the driver needs to know the number
+ * of queues. So the driver uses polling mode to retrieve this
+ * information */
+ ena_com_set_admin_polling_mode(ena_dev, true);
+
+ /* Get Device Attributes and features */
+ rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
+ if (rc) {
+ RTE_LOG(ERR, PMD, "cannot get attribute for ena device rc= %d\n", rc);
+ goto err_admin_init;
+ }
+
+ return 0;
+
+err_admin_init:
+ ena_com_admin_destroy(ena_dev);
+
+err_mmio_read_less:
+ ena_com_mmio_reg_read_request_destroy(ena_dev);
+
+ return rc;
+}
+
+static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
+{
+ struct rte_pci_device *pci_dev;
+ struct ena_adapter *adapter = (struct ena_adapter*)(eth_dev->data->dev_private);
+ struct ena_com_dev *ena_dev = &adapter->ena_dev;
+ struct ena_com_dev_get_features_ctx get_feat_ctx;
+ int rc;
+
+ static int adapters_found = 0;
+
+ memset(adapter, 0, sizeof(struct ena_adapter));
+ ena_dev = &adapter->ena_dev;
+
+ eth_dev->dev_ops = &ena_dev_ops;
+ eth_dev->rx_pkt_burst = ð_ena_recv_pkts;
+ eth_dev->tx_pkt_burst = ð_ena_xmit_pkts;
+ adapter->rte_eth_dev_data = eth_dev->data;
+ adapter->rte_dev = eth_dev;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ return 0;
+ }
+
+ pci_dev = eth_dev->pci_dev;
+ adapter->pdev = pci_dev;
+
+ PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d\n", pci_dev->addr.domain,
+ pci_dev->addr.bus, pci_dev->addr.devid, pci_dev->addr.function);
+
+ adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr;
+ /* DPDK is operating only on host memory policy */
+ adapter->dev_mem_base = NULL;
+ ena_dev->reg_bar = adapter->regs;
+ ena_dev->mem_bar = adapter->dev_mem_base;
+ ena_dev->dmadev = adapter->pdev;
+
+ adapter->id_number = adapters_found;
+
+ snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d", adapter->id_number);
+
+ /* device specific initialization routine */
+ rc = ena_device_init(ena_dev, &get_feat_ctx);
+ if (rc) {
+ PMD_INIT_LOG(CRIT, "Failed to init ENA device\n");
+ return -1;
+ }
+ /* prepare ring structures */
+ ena_init_rings(adapter);
+
+ /* Set max MTU for this device */
+ adapter->max_mtu = ENA_MAX_MTU;
+
+ /* Copy MAC address and point DPDK to it */
+ eth_dev->data->mac_addrs = (struct ether_addr*)adapter->mac_addr;
+ ether_addr_copy((struct ether_addr *)get_feat_ctx.dev_attr.mac_addr,
+ (struct ether_addr *)adapter->mac_addr);
+
+ adapter->drv_stats = rte_zmalloc("adapter stats",
+ sizeof(*adapter->drv_stats),
+ RTE_CACHE_LINE_SIZE);
+ if (!adapter->drv_stats) {
+ RTE_LOG(ERR, PMD, "failed to alloc mem for adapter stats\n");
+ return -ENOMEM;
+ }
+
+ adapters_found++;
+ adapter->state = ENA_ADAPTER_STATE_INIT;
+
+ return 0;
+}
+
+static int ena_dev_configure(struct rte_eth_dev *dev)
+{
+
+ struct ena_adapter *adapter = (struct ena_adapter*)(dev->data->dev_private);
+
+ if (!(adapter->state == ENA_ADAPTER_STATE_INIT ||
+ adapter->state == ENA_ADAPTER_STATE_STOPPED)) {
+ PMD_INIT_LOG(ERR, "Illegal adapter state: %d\n", adapter->state);
+ return -1;
+ }
+ switch (adapter->state) {
+ case ENA_ADAPTER_STATE_INIT:
+ case ENA_ADAPTER_STATE_STOPPED:
+ adapter->state = ENA_ADAPTER_STATE_CONFIG;
+ break;
+ case ENA_ADAPTER_STATE_CONFIG:
+ RTE_LOG(WARNING, PMD, "Ivalid driver state while trying to configure device\n");
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static void ena_init_rings(struct ena_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < ENA_NUM_QUEUES; i++) {
+ struct ena_ring *ring = &adapter->tx_ring[i];
+ ring->configured = 0;
+ ring->type = ENA_RING_TYPE_TX;
+ ring->adapter = adapter;
+ ring->id = i;
+ }
+
+ for (i = 0; i < ENA_NUM_QUEUES; i++) {
+ struct ena_ring *ring = &adapter->rx_ring[i];
+ ring->configured = 0;
+ ring->type = ENA_RING_TYPE_RX;
+ ring->adapter = adapter;
+ ring->id = i;
+ }
+}
+
+static void ena_infos_get(struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info)
+{
+ struct ena_adapter *adapter;
+ struct ena_com_dev *ena_dev;
+ struct ena_com_dev_get_features_ctx feat;
+ uint32_t rx_feat = 0, tx_feat = 0;
+ int rc = 0;
+
+ ena_assert_msg(dev->data != NULL, "Uninitialized device");
+ ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device");
+ adapter = (struct ena_adapter*)(dev->data->dev_private);
+
+ ena_dev = &adapter->ena_dev;
+ ena_assert_msg(ena_dev != NULL, "Uninitialized device");
+
+ /* Get supported features from HW */
+ rc = ena_com_get_dev_attr_feat(ena_dev, &feat);
+ if (unlikely(rc)) {
+ RTE_LOG(ERR, PMD, "Cannot get attribute for ena device rc= %d\n", rc);
+ return;
+ }
+
+ /* Set Tx & Rx features available for device */
+ if (feat.offload.tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK)
+ tx_feat |= DEV_TX_OFFLOAD_TCP_TSO;
+
+ if (feat.offload.tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK)
+ tx_feat |= DEV_TX_OFFLOAD_IPV4_CKSUM | DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM;
+
+ if (feat.offload.tx & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK)
+ rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM | DEV_RX_OFFLOAD_UDP_CKSUM |
+ DEV_RX_OFFLOAD_TCP_CKSUM;
+
+ /* Inform framework about available features */
+ dev_info->rx_offload_capa = rx_feat;
+ dev_info->tx_offload_capa = tx_feat;
+
+ dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
+ dev_info->max_rx_pktlen = ENA_MAX_FRAME_LEN;
+ dev_info->max_mac_addrs = 1;
+
+ dev_info->max_rx_queues = ENA_NUM_QUEUES;
+ dev_info->max_tx_queues = ENA_NUM_QUEUES;
+}
+
+static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts)
+{
+ struct ena_ring *rx_ring = (struct ena_ring*)(rx_queue);
+ unsigned int ring_size = rx_ring->ring_size;
+ unsigned int ring_mask = ring_size - 1;
+ uint16_t next_to_clean = rx_ring->next_to_clean;
+ int desc_in_use = 0;
+ unsigned int recv_idx = 0;
+ struct rte_mbuf *mbuf = NULL;
+ struct rte_mbuf *mbuf_head = NULL;
+ struct rte_mbuf *mbuf_prev = NULL;
+ struct rte_mbuf **rx_buff_info = rx_ring->rx_buffer_info;
+ unsigned int completed;
+
+ struct ena_com_rx_ctx ena_rx_ctx;
+ int rc = 0;
+
+ /* Check adapter state */
+ if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNING)) {
+ RTE_LOG(ALERT, PMD,
+ "Trying to receive packets while eth device is NOT running\n");
+ return 0;
+ }
+
+ desc_in_use = ENA_CIRC_COUNT(rx_ring->next_to_use, next_to_clean, ring_size);
+ if (unlikely(nb_pkts > desc_in_use)) nb_pkts = desc_in_use;
+
+ for (completed = 0; completed < nb_pkts; completed++) {
+ ena_rx_ctx.max_bufs = rx_ring->ring_size;
+ ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
+ ena_rx_ctx.descs = 0;
+ /* receive packet context */
+ rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq, rx_ring->ena_com_io_sq,
+ &ena_rx_ctx);
+ if (unlikely(rc)) {
+ RTE_LOG(ERR, PMD, "ena_com_rx_pkt error %d \n", rc);
+ return 0;
+ }
+
+ if (unlikely(ena_rx_ctx.descs == 0))
+ break;
+
+ int segments = 0;
+ while (segments < ena_rx_ctx.descs) {
+ mbuf = rx_buff_info[next_to_clean & ring_mask];
+ mbuf->data_len = ena_rx_ctx.ena_bufs[segments].len;
+ mbuf->data_off = RTE_PKTMBUF_HEADROOM;
+ mbuf->refcnt = 1;
+ mbuf->next = NULL;
+ if (segments == 0) {
+ mbuf->nb_segs = ena_rx_ctx.descs;
+ mbuf->port = rx_ring->port_id;
+ mbuf->pkt_len = 0;
+ mbuf_head = mbuf;
+ } else {
+ /* for multi-segment packets create mbuf chain */
+ mbuf_prev->next = mbuf;
+ }
+ mbuf_head->pkt_len += mbuf->data_len;
+
+ mbuf_prev = mbuf;
+ segments++;
+ next_to_clean = ENA_RX_RING_IDX_NEXT(next_to_clean, ring_size);
+ }
+
+ /* fill mbuf attributes if any */
+ ena_rx_mbuf_prepare(mbuf_head, &ena_rx_ctx);
+
+ /* pass to DPDK application head mbuf */
+ rx_pkts[recv_idx] = mbuf_head;
+ recv_idx++;
+ }
+
+ /* Burst refill to save doorbells, memory barriers, const interval */
+ if (ring_size - desc_in_use - 1 > ENA_RING_DESCS_RATIO(ring_size))
+ ena_populate_rx_queue(rx_ring, ring_size - desc_in_use - 1);
+
+ rx_ring->next_to_clean = next_to_clean & ring_mask;
+
+ return recv_idx;
+}
+
+static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
+{
+ struct ena_ring *tx_ring = (struct ena_ring*)(tx_queue);
+ unsigned int next_to_use = tx_ring->next_to_use;
+ struct rte_mbuf *mbuf;
+ unsigned int ring_size = tx_ring->ring_size;
+ unsigned int ring_mask = ring_size - 1;
+ struct ena_com_tx_ctx ena_tx_ctx;
+ struct ena_tx_buffer *tx_info;
+ struct ena_com_buf *ebuf;
+ unsigned int i;
+ uint16_t rc, req_id, total_tx_descs = 0;
+ int sent_idx = 0;
+ int nb_hw_desc;
+
+ /* Check adapter state */
+ if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNING)) {
+ RTE_LOG(ALERT, PMD,
+ "Trying to transmit packets while device is NOT running\n");
+ return 0;
+ }
+
+ for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
+
+ mbuf = tx_pkts[sent_idx];
+
+ req_id = tx_ring->empty_tx_reqs[next_to_use];
+ tx_info = &tx_ring->tx_buffer_info[req_id];
+ tx_info->mbuf = mbuf;
+ tx_info->num_of_bufs = mbuf->nb_segs;
+
+ ebuf = tx_info->bufs;
+ /* Prepare TX context */
+ memset(&ena_tx_ctx, 0x0, sizeof(struct ena_com_tx_ctx));
+ memset(&ena_tx_ctx.ena_meta, 0x0, sizeof(struct ena_com_tx_meta));
+ ena_tx_ctx.ena_bufs = ebuf;
+ ena_tx_ctx.push_header = (void *)tx_info->bufs;
+ ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
+ ena_tx_ctx.req_id = req_id;
+ /* Set TX offloads flags, if applicable */
+ ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx);
+
+ if (unlikely(mbuf->ol_flags & (PKT_RX_L4_CKSUM_BAD|PKT_RX_IP_CKSUM_BAD))) {
+ rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
+ }
+
+ rte_prefetch0(tx_pkts[(sent_idx + 4) & ring_mask]);
+
+ /* Fill bufs for HW */
+ for (i=1; i <= tx_info->num_of_bufs; i++) {
+ ebuf->paddr = mbuf->buf_physaddr + mbuf->data_off;
+ ebuf->len = mbuf->data_len;
+
+ /* Iterate through all mbuf segments */
+ if (((mbuf = mbuf->next) == NULL) &&
+ (i != tx_info->num_of_bufs)) {
+ break;
+ }
+ ebuf++;
+ }
+
+ /* Write data to device */
+ rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq, &ena_tx_ctx, &nb_hw_desc);
+ if (unlikely(rc)) {
+ rte_atomic64_inc(&tx_ring->adapter->drv_stats->oerrors);
+ break;
+ }
+
+ tx_info->tx_descs = nb_hw_desc;
+
+ next_to_use = ENA_TX_RING_IDX_NEXT(next_to_use, ring_size);
+ }
+
+ /* Let HW do it's best :-) */
+ rte_wmb();
+ ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+
+ /* Clear complete packets */
+ while (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) >= 0) {
+ /* Get Tx info & store how many descs were processed */
+ tx_info = &tx_ring->tx_buffer_info[req_id];
+ total_tx_descs += tx_info->tx_descs;
+
+ /* Free whole mbuf chain */
+ mbuf = tx_info->mbuf;
+ rte_pktmbuf_free(mbuf);
+
+ /* Put back descriptor to the ring for reuse */
+ tx_ring->empty_tx_reqs[tx_ring->next_to_clean] = req_id;
+ tx_ring->next_to_clean =
+ ENA_TX_RING_IDX_NEXT(tx_ring->next_to_clean, tx_ring->ring_size);
+
+ /* If too many descs to clean, leave it for another run */
+ if (unlikely(total_tx_descs > ENA_RING_DESCS_RATIO(ring_size)))
+ break;
+ }
+
+ /* acknowledge completion of sent packets */
+ ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
+ tx_ring->next_to_use = next_to_use;
+ return sent_idx;
+}
+
+static struct eth_driver rte_ena_pmd = {
+ {
+ .name = "rte_ena_pmd",
+ .id_table = pci_id_ena_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+ },
+ .eth_dev_init = eth_ena_dev_init,
+ .dev_private_size = sizeof(struct ena_adapter),
+};
+
+static int
+rte_ena_pmd_init(const char *name __rte_unused, const char *params __rte_unused)
+{
+ rte_eth_driver_register(&rte_ena_pmd);
+ return 0;
+};
+
+struct rte_driver ena_pmd_drv = {
+ .name = "ena_driver",
+ .type = PMD_PDEV,
+ .init = rte_ena_pmd_init,
+};
+
+PMD_REGISTER_DRIVER(ena_pmd_drv);
diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h
new file mode 100755
index 0000000..ba5b301
--- /dev/null
+++ b/drivers/net/ena/ena_ethdev.h
@@ -0,0 +1,151 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_ETHDEV_H_
+#define _ENA_ETHDEV_H_
+
+#include <rte_pci.h>
+
+#pragma GCC diagnostic ignored "-Wcast-qual"
+
+#include "ena_com.h"
+
+#define ENA_REGS_BAR 0
+
+#define ENA_NUM_QUEUES 8
+
+#define ENA_DEFAULT_TX_SW_DESCS (1024)
+#define ENA_DEFAULT_TX_HW_DESCS (1024)
+#define ENA_DEFAULT_RX_DESCS (1024)
+#define ENA_DEFAULT_TX_DESCS (1024)
+
+#define ENA_MIN_FRAME_LEN 64
+#define ENA_MAX_FRAME_LEN 9216
+
+#define ENA_NAME_MAX_LEN 20
+#define ENA_IRQNAME_SIZE 40
+
+#define ENA_PKT_MAX_BUFS 17
+
+#define ENA_CIRC_COUNT(head, tail, size) (((uint16_t)((uint16_t)(head) - (uint16_t)(tail))) & ((size) - 1))
+
+#define ENA_CIRC_INC(index, step, size) ((uint16_t)(index) + (uint16_t)(step))
+#define ENA_CIRC_INC_WRAP(index, step, size) (((uint16_t)(index) + (uint16_t)(step)) & ((size) - 1))
+
+#define ENA_TX_RING_IDX_NEXT(idx, ring_size) ENA_CIRC_INC_WRAP(idx, 1, ring_size)
+#define ENA_RX_RING_IDX_NEXT(idx, ring_size) ENA_CIRC_INC_WRAP(idx, 1, ring_size)
+
+
+struct ena_adapter;
+
+enum ena_ring_type {
+ ENA_RING_TYPE_RX = 1,
+ ENA_RING_TYPE_TX = 2,
+};
+
+struct ena_tx_buffer {
+ struct rte_mbuf *mbuf;
+ unsigned int tx_descs;
+ unsigned int num_of_bufs;
+ struct ena_com_buf bufs[ENA_PKT_MAX_BUFS];
+};
+
+struct ena_ring {
+ u16 next_to_use;
+ u16 next_to_clean;
+
+ enum ena_ring_type type;
+ uint16_t *empty_tx_reqs; /* Holds the empty requests for TX OOO completions */
+ union {
+ struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */
+ struct rte_mbuf **rx_buffer_info; /* contex of rx packet */
+ };
+ unsigned int ring_size; /* number of tx/rx_buffer_info's entries */
+
+ struct ena_com_io_cq *ena_com_io_cq;
+ struct ena_com_io_sq *ena_com_io_sq;
+
+ struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS] __rte_cache_aligned;
+
+ struct rte_mempool *mb_pool;
+ unsigned int port_id;
+ unsigned int id;
+ int configured;
+ struct ena_adapter *adapter;
+};
+
+enum ena_adapter_state {
+ ENA_ADAPTER_STATE_FREE = 0,
+ ENA_ADAPTER_STATE_INIT = 1,
+ ENA_ADAPTER_STATE_RUNING = 2,
+ ENA_ADAPTER_STATE_STOPPED = 3,
+ ENA_ADAPTER_STATE_CONFIG = 4,
+};
+
+struct ena_driver_stats {
+ rte_atomic64_t ierrors;
+ rte_atomic64_t oerrors;
+ rte_atomic64_t imcasts;
+ rte_atomic64_t rx_nombuf;
+};
+
+/* board specific private data structure */
+struct ena_adapter {
+ /* OS defined structs */
+ struct rte_pci_device *pdev;
+ struct rte_eth_dev_data *rte_eth_dev_data;
+ struct rte_eth_dev *rte_dev;
+
+ struct ena_com_dev ena_dev;
+
+ /* TX */
+ struct ena_ring tx_ring[ENA_NUM_QUEUES] __rte_cache_aligned;
+
+ /* RX */
+ struct ena_ring rx_ring[ENA_NUM_QUEUES] __rte_cache_aligned;
+
+ u8 mac_addr[ETHER_ADDR_LEN];
+ u16 max_mtu;
+
+ int id_number;
+ char name[ENA_NAME_MAX_LEN];
+
+ void* regs;
+ void *dev_mem_base;
+
+ struct ena_driver_stats *drv_stats;
+ enum ena_adapter_state state;
+};
+
+
+#endif
diff --git a/drivers/net/ena/ena_logs.h b/drivers/net/ena/ena_logs.h
new file mode 100644
index 0000000..10e4858
--- /dev/null
+++ b/drivers/net/ena/ena_logs.h
@@ -0,0 +1,76 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_LOGS_H_
+#define _ENA_LOGS_H_
+
+#define RTE_LOGTYPE_ENA RTE_LOGTYPE_USER1
+
+#ifdef RTE_LIBRTE_ENA_DEBUG_INIT
+#define PMD_INIT_LOG(level, fmt, args...) \
+ RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#else
+#define PMD_INIT_LOG(level, fmt, args...) do { } while(0)
+#endif
+
+#ifdef RTE_LIBRTE_ENA_DEBUG_RX
+#define PMD_RX_LOG(level, fmt, args...) \
+ RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#else
+#define PMD_RX_LOG(level, fmt, args...) do { } while(0)
+#endif
+
+#ifdef RTE_LIBRTE_ENA_DEBUG_TX
+#define PMD_TX_LOG(level, fmt, args...) \
+ RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#else
+#define PMD_TX_LOG(level, fmt, args...) do { } while(0)
+#endif
+
+#ifdef RTE_LIBRTE_ENA_DEBUG_TX_FREE
+#define PMD_TX_FREE_LOG(level, fmt, args...) \
+ RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#else
+#define PMD_TX_FREE_LOG(level, fmt, args...) do { } while(0)
+#endif
+
+#ifdef RTE_LIBRTE_ENA_DEBUG_DRIVER
+#define PMD_DRV_LOG(level, fmt, args...) \
+ RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#else
+#define PMD_DRV_LOG(level, fmt, args...) do { } while(0)
+#endif
+
+
+
+#endif /* _ENA_LOGS_H_ */
diff --git a/drivers/net/ena/ena_platform.h b/drivers/net/ena/ena_platform.h
new file mode 100644
index 0000000..e1e9dd7
--- /dev/null
+++ b/drivers/net/ena/ena_platform.h
@@ -0,0 +1,58 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __ENA_PLATFORM_H__
+#define __ENA_PLATFORM_H__
+
+#define swap16_to_le(x) (x)
+
+#define swap32_to_le(x) (x)
+
+#define swap64_to_le(x) (x)
+
+#define swap16_from_le(x) (x)
+
+#define swap32_from_le(x) (x)
+
+#define swap64_from_le(x) (x)
+
+#define ena_assert(cond) \
+ if (unlikely(!(cond))) { \
+/* RTE_LOG(ERR, ENA, "Assert failed on %s:%s:%d: "__FILE__, __func__, __LINE__);*/ \
+ rte_panic(); \
+ } \
+
+#define ena_assert_msg(x,msg) {if(unlikely(!(x))) {rte_panic(msg);}}
+
+
+#endif
diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 8ecab41..791bd48 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -144,6 +144,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += -lrte_pmd_i40e
_LDLIBS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += -lrte_pmd_fm10k
_LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += -lrte_pmd_ixgbe
_LDLIBS-$(CONFIG_RTE_LIBRTE_E1000_PMD) += -lrte_pmd_e1000
+_LDLIBS-$(CONFIG_RTE_LIBRTE_ENA_PMD) += -lrte_pmd_ena
_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += -lrte_pmd_mlx4
_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += -lrte_pmd_mlx5
_LDLIBS-$(CONFIG_RTE_LIBRTE_NFP_PMD) += -lrte_pmd_nfp
--
1.9.1
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