From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 2C2AEA04B3; Mon, 9 Dec 2019 22:50:03 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 7B1F01BF93; Mon, 9 Dec 2019 22:48:50 +0100 (CET) Received: from mail.ntop.org (mail-digitalocean.ntop.org [167.99.215.164]) by dpdk.org (Postfix) with ESMTP id 657AC5B3C for ; Mon, 9 Dec 2019 22:48:32 +0100 (CET) Received: from devele.ntop.org (net-93-145-196-230.cust.vodafonedsl.it [93.145.196.230]) by mail.ntop.org (Postfix) with ESMTPSA id 1EB0B41B73; Mon, 9 Dec 2019 22:48:32 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ntop.org; s=mail; t=1575928112; bh=y01dNvY2pah0NEmu+S7KWtIEQ1QrB749otfLSOzxLk8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sRw5UkFgb9wfLSnCaVNMFk4UQOIAuiNETF584zDWOywVkfH0C6ba+Xex7hlhf9UIs Pv08zHR7Drqi/KcanxBidIJI6rLpbw+TT1W15InCtDaYStAyUJTtNfPio3OeBASu0O pIT/z9lbF7vq/ccUQtEltwrkKvcZ7Ksyuo5kMFu0= From: Alfredo Cardigliano To: Alfredo Cardigliano Cc: dev@dpdk.org Date: Mon, 9 Dec 2019 22:46:47 +0100 Message-Id: <20191209214656.27347-9-cardigliano@ntop.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191209214656.27347-1-cardigliano@ntop.org> References: <20191209214656.27347-1-cardigliano@ntop.org> Subject: [dpdk-dev] [PATCH v3 08/17] net/ionic: add adminq support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add support for the admin queue, which is used for most of the NIC configurations. Signed-off-by: Alfredo Cardigliano Reviewed-by: Shannon Nelson --- drivers/net/ionic/ionic.h | 3 + drivers/net/ionic/ionic_dev.c | 255 +++++++++++++++++++++++ drivers/net/ionic/ionic_dev.h | 95 ++++++++- drivers/net/ionic/ionic_lif.c | 356 +++++++++++++++++++++++++++++++++ drivers/net/ionic/ionic_lif.h | 36 ++++ drivers/net/ionic/ionic_main.c | 186 +++++++++++++++++ 6 files changed, 930 insertions(+), 1 deletion(-) diff --git a/drivers/net/ionic/ionic.h b/drivers/net/ionic/ionic.h index b6ef63161..7defb5fe0 100644 --- a/drivers/net/ionic/ionic.h +++ b/drivers/net/ionic/ionic.h @@ -55,11 +55,14 @@ struct ionic_adapter { uint32_t max_ntxqs_per_lif; uint32_t max_nrxqs_per_lif; uint32_t nintrs; + bool intrs[IONIC_INTR_CTRL_REGS_MAX]; bool is_mgmt_nic; struct rte_pci_device *pci_dev; LIST_ENTRY(ionic_adapter) pci_adapters; }; +int ionic_adminq_check_err(struct ionic_admin_ctx *ctx, bool timeout); +int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx); int ionic_dev_cmd_wait_check(struct ionic_dev *idev, unsigned long max_wait); int ionic_setup(struct ionic_adapter *adapter); diff --git a/drivers/net/ionic/ionic_dev.c b/drivers/net/ionic/ionic_dev.c index 29f2720ae..1c5a4425b 100644 --- a/drivers/net/ionic/ionic_dev.c +++ b/drivers/net/ionic/ionic_dev.c @@ -299,6 +299,12 @@ ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index) ionic_dev_cmd_go(idev, &cmd); } +struct ionic_doorbell * +ionic_db_map(struct ionic_lif *lif, struct ionic_queue *q) +{ + return lif->kern_dbpage + q->hw_type; +} + int ionic_db_page_num(struct ionic_lif *lif, int pid) { @@ -312,3 +318,252 @@ ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, ionic_intr_clean(idev->intr_ctrl, index); intr->index = index; } + +void +ionic_dev_cmd_adminq_init(struct ionic_dev *idev, + struct ionic_qcq *qcq, + uint16_t lif_index, uint16_t intr_index) +{ + struct ionic_queue *q = &qcq->q; + struct ionic_cq *cq = &qcq->cq; + + union ionic_dev_cmd cmd = { + .q_init.opcode = IONIC_CMD_Q_INIT, + .q_init.lif_index = lif_index, + .q_init.type = q->type, + .q_init.index = q->index, + .q_init.flags = IONIC_QINIT_F_ENA, + .q_init.pid = q->pid, + .q_init.intr_index = intr_index, + .q_init.ring_size = ilog2(q->num_descs), + .q_init.ring_base = q->base_pa, + .q_init.cq_ring_base = cq->base_pa, + }; + + ionic_dev_cmd_go(idev, &cmd); +} + +int +ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq, + struct ionic_intr_info *intr, + uint32_t num_descs, size_t desc_size) +{ + if (desc_size == 0) { + IONIC_PRINT(ERR, "Descriptor size is %zu", desc_size); + return -EINVAL; + } + + if (!rte_is_power_of_2(num_descs) || + num_descs < IONIC_MIN_RING_DESC || + num_descs > IONIC_MAX_RING_DESC) { + IONIC_PRINT(ERR, "%u descriptors (min: %u max: %u)", + num_descs, IONIC_MIN_RING_DESC, IONIC_MAX_RING_DESC); + return -EINVAL; + } + + cq->lif = lif; + cq->bound_intr = intr; + cq->num_descs = num_descs; + cq->desc_size = desc_size; + cq->tail_idx = 0; + cq->done_color = 1; + + return 0; +} + +void +ionic_cq_map(struct ionic_cq *cq, void *base, rte_iova_t base_pa) +{ + cq->base = base; + cq->base_pa = base_pa; +} + +void +ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q) +{ + cq->bound_q = q; + q->bound_cq = cq; +} + +uint32_t +ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do, + ionic_cq_cb cb, void *cb_arg) +{ + uint32_t work_done = 0; + + if (work_to_do == 0) + return 0; + + while (cb(cq, cq->tail_idx, cb_arg)) { + cq->tail_idx = (cq->tail_idx + 1) & (cq->num_descs - 1); + if (cq->tail_idx == 0) + cq->done_color = !cq->done_color; + + if (++work_done == work_to_do) + break; + } + + return work_done; +} + +int +ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev, + struct ionic_queue *q, uint32_t index, uint32_t num_descs, + size_t desc_size, size_t sg_desc_size, uint32_t pid) +{ + uint32_t ring_size; + + if (desc_size == 0 || !rte_is_power_of_2(num_descs)) + return -EINVAL; + + ring_size = ilog2(num_descs); + + if (ring_size < 2 || ring_size > 16) + return -EINVAL; + + q->lif = lif; + q->idev = idev; + q->index = index; + q->num_descs = num_descs; + q->desc_size = desc_size; + q->sg_desc_size = sg_desc_size; + q->head_idx = 0; + q->tail_idx = 0; + q->pid = pid; + + return 0; +} + +void +ionic_q_map(struct ionic_queue *q, void *base, rte_iova_t base_pa) +{ + q->base = base; + q->base_pa = base_pa; +} + +void +ionic_q_sg_map(struct ionic_queue *q, void *base, rte_iova_t base_pa) +{ + q->sg_base = base; + q->sg_base_pa = base_pa; +} + +void +ionic_q_flush(struct ionic_queue *q) +{ + writeq(IONIC_DBELL_QID(q->hw_index) | q->head_idx, q->db); +} + +void +ionic_q_post(struct ionic_queue *q, bool ring_doorbell, desc_cb cb, + void *cb_arg) +{ + struct ionic_desc_info *head = &q->info[q->head_idx]; + + head->cb = cb; + head->cb_arg = cb_arg; + + q->head_idx = (q->head_idx + 1) & (q->num_descs - 1); + + if (ring_doorbell) + ionic_q_flush(q); +} + +uint32_t +ionic_q_space_avail(struct ionic_queue *q) +{ + uint32_t avail = q->tail_idx; + + if (q->head_idx >= avail) + avail += q->num_descs - q->head_idx - 1; + else + avail -= q->head_idx + 1; + + return avail; +} + +bool +ionic_q_has_space(struct ionic_queue *q, uint32_t want) +{ + return ionic_q_space_avail(q) >= want; +} + +void +ionic_q_service(struct ionic_queue *q, uint32_t cq_desc_index, + uint32_t stop_index, void *service_cb_arg) +{ + struct ionic_desc_info *desc_info; + uint32_t curr_q_tail_idx; + + do { + desc_info = &q->info[q->tail_idx]; + + if (desc_info->cb) + desc_info->cb(q, q->tail_idx, cq_desc_index, + desc_info->cb_arg, service_cb_arg); + + desc_info->cb = NULL; + desc_info->cb_arg = NULL; + + curr_q_tail_idx = q->tail_idx; + q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1); + + } while (curr_q_tail_idx != stop_index); +} + +static void +ionic_adminq_cb(struct ionic_queue *q, + uint32_t q_desc_index, uint32_t cq_desc_index, + void *cb_arg, void *service_cb_arg __rte_unused) +{ + struct ionic_admin_ctx *ctx = cb_arg; + struct ionic_admin_comp *cq_desc_base = q->bound_cq->base; + struct ionic_admin_comp *cq_desc = &cq_desc_base[cq_desc_index]; + + if (unlikely(cq_desc->comp_index != q_desc_index)) { + IONIC_WARN_ON(cq_desc->comp_index != q_desc_index); + return; + } + + memcpy(&ctx->comp, cq_desc, sizeof(*cq_desc)); + + ctx->pending_work = false; /* done */ +} + +/** ionic_adminq_post - Post an admin command. + * @lif: Handle to lif. + * @cmd_ctx: Api admin command context. + * + * Post the command to an admin queue in the ethernet driver. If this command + * succeeds, then the command has been posted, but that does not indicate a + * completion. If this command returns success, then the completion callback + * will eventually be called. + * + * Return: zero or negative error status. + */ +int +ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) +{ + struct ionic_queue *adminq = &lif->adminqcq->q; + struct ionic_admin_cmd *q_desc_base = adminq->base; + struct ionic_admin_cmd *q_desc; + int err = 0; + + rte_spinlock_lock(&lif->adminq_lock); + + if (!ionic_q_has_space(adminq, 1)) { + err = -ENOSPC; + goto err_out; + } + + q_desc = &q_desc_base[adminq->head_idx]; + + memcpy(q_desc, &ctx->cmd, sizeof(ctx->cmd)); + + ionic_q_post(adminq, true, ionic_adminq_cb, ctx); + +err_out: + rte_spinlock_unlock(&lif->adminq_lock); + + return err; +} diff --git a/drivers/net/ionic/ionic_dev.h b/drivers/net/ionic/ionic_dev.h index ca9807a9b..a832ff405 100644 --- a/drivers/net/ionic/ionic_dev.h +++ b/drivers/net/ionic/ionic_dev.h @@ -9,6 +9,9 @@ #include "ionic_if.h" #include "ionic_regs.h" +#define IONIC_MAX_RING_DESC 32768 +#define IONIC_MIN_RING_DESC 16 + #define IONIC_LIFS_MAX 1024 #define IONIC_DEVCMD_TIMEOUT 30 /* devcmd_timeout */ @@ -121,6 +124,44 @@ struct ionic_dev { uint32_t port_info_sz; }; +struct ionic_queue; +struct ionic_desc_info; + +typedef void (*desc_cb)(struct ionic_queue *q, + uint32_t q_desc_index, + uint32_t cq_desc_index, + void *cb_arg, void *service_cb_arg); + +struct ionic_desc_info { + desc_cb cb; + void *cb_arg; +}; + +struct ionic_queue { + struct ionic_dev *idev; + struct ionic_lif *lif; + struct ionic_cq *bound_cq; + uint32_t index; + uint32_t type; + uint32_t hw_index; + uint32_t hw_type; + void *base; + void *sg_base; + rte_iova_t base_pa; + rte_iova_t sg_base_pa; + struct ionic_desc_info *info; + uint32_t tail_idx; + uint32_t head_idx; + uint32_t num_descs; + uint32_t desc_size; + uint32_t sg_desc_size; + uint32_t pid; + uint32_t qid; + uint32_t qtype; + struct ionic_doorbell __iomem *db; + void *nop_desc; +}; + #define IONIC_INTR_INDEX_NOT_ASSIGNED (-1) #define IONIC_INTR_NAME_MAX_SZ (32) @@ -129,11 +170,34 @@ struct ionic_intr_info { int index; uint32_t vector; struct ionic_intr __iomem *ctrl; - uint64_t rearm_count; +}; + +struct ionic_cq { + struct ionic_lif *lif; + struct ionic_queue *bound_q; + uint32_t tail_idx; + uint32_t num_descs; + uint32_t desc_size; + bool done_color; + void *base; + rte_iova_t base_pa; + struct ionic_intr_info *bound_intr; +}; + +/** ionic_admin_ctx - Admin command context. + * @pending_work: Flag that indicates a completion. + * @cmd: Admin command (64B) to be copied to the queue. + * @comp: Admin completion (16B) copied from the queue. + */ +struct ionic_admin_ctx { + bool pending_work; + union ionic_adminq_cmd cmd; + union ionic_adminq_comp comp; }; struct ionic_lif; struct ionic_adapter; +struct ionic_qcq; void ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, unsigned long index); @@ -166,7 +230,36 @@ void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, uint8_t type, void ionic_dev_cmd_lif_init(struct ionic_dev *idev, uint16_t lif_index, rte_iova_t addr); void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index); +void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq, + uint16_t lif_index, uint16_t intr_index); +struct ionic_doorbell __iomem *ionic_db_map(struct ionic_lif *lif, + struct ionic_queue *q); int ionic_db_page_num(struct ionic_lif *lif, int pid); +int ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq, + struct ionic_intr_info *intr, uint32_t num_descs, + size_t desc_size); +void ionic_cq_map(struct ionic_cq *cq, void *base, rte_iova_t base_pa); +void ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q); +typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, uint32_t cq_desc_index, + void *cb_arg); +uint32_t ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do, + ionic_cq_cb cb, void *cb_arg); + +int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev, + struct ionic_queue *q, uint32_t index, uint32_t num_descs, + size_t desc_size, size_t sg_desc_size, uint32_t pid); +void ionic_q_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); +void ionic_q_sg_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); +void ionic_q_flush(struct ionic_queue *q); +void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, desc_cb cb, + void *cb_arg); +uint32_t ionic_q_space_avail(struct ionic_queue *q); +bool ionic_q_has_space(struct ionic_queue *q, uint32_t want); +void ionic_q_service(struct ionic_queue *q, uint32_t cq_desc_index, + uint32_t stop_index, void *service_cb_arg); + +int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx); + #endif /* _IONIC_DEV_H_ */ diff --git a/drivers/net/ionic/ionic_lif.c b/drivers/net/ionic/ionic_lif.c index 1cc130322..ec631b600 100644 --- a/drivers/net/ionic/ionic_lif.c +++ b/drivers/net/ionic/ionic_lif.c @@ -10,6 +10,259 @@ #include "ionic_lif.h" #include "ionic_ethdev.h" +int +ionic_qcq_enable(struct ionic_qcq *qcq) +{ + struct ionic_queue *q = &qcq->q; + struct ionic_lif *lif = q->lif; + struct ionic_dev *idev = &lif->adapter->idev; + struct ionic_admin_ctx ctx = { + .pending_work = true, + .cmd.q_control = { + .opcode = IONIC_CMD_Q_CONTROL, + .lif_index = lif->index, + .type = q->type, + .index = q->index, + .oper = IONIC_Q_ENABLE, + }, + }; + + if (qcq->flags & IONIC_QCQ_F_INTR) { + ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, + IONIC_INTR_MASK_CLEAR); + } + + return ionic_adminq_post_wait(lif, &ctx); +} + +int +ionic_qcq_disable(struct ionic_qcq *qcq) +{ + struct ionic_queue *q = &qcq->q; + struct ionic_lif *lif = q->lif; + struct ionic_dev *idev = &lif->adapter->idev; + struct ionic_admin_ctx ctx = { + .pending_work = true, + .cmd.q_control = { + .opcode = IONIC_CMD_Q_CONTROL, + .lif_index = lif->index, + .type = q->type, + .index = q->index, + .oper = IONIC_Q_DISABLE, + }, + }; + + if (qcq->flags & IONIC_QCQ_F_INTR) { + ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, + IONIC_INTR_MASK_SET); + } + + return ionic_adminq_post_wait(lif, &ctx); +} + +int +ionic_intr_alloc(struct ionic_lif *lif, struct ionic_intr_info *intr) +{ + struct ionic_adapter *adapter = lif->adapter; + struct ionic_dev *idev = &adapter->idev; + unsigned long index; + + /* + * Note: interrupt handler is called for index = 0 only + * (we use interrupts for the notifyq only anyway, + * which hash index = 0) + */ + + for (index = 0; index < adapter->nintrs; index++) + if (!adapter->intrs[index]) + break; + + if (index == adapter->nintrs) + return -ENOSPC; + + adapter->intrs[index] = true; + + ionic_intr_init(idev, intr, index); + + return 0; +} + +void +ionic_intr_free(struct ionic_lif *lif, struct ionic_intr_info *intr) +{ + if (intr->index != IONIC_INTR_INDEX_NOT_ASSIGNED) + lif->adapter->intrs[intr->index] = false; +} + +static int +ionic_qcq_alloc(struct ionic_lif *lif, uint8_t type, + uint32_t index, + const char *base, uint32_t flags, + uint32_t num_descs, + uint32_t desc_size, + uint32_t cq_desc_size, + uint32_t sg_desc_size, + uint32_t pid, struct ionic_qcq **qcq) +{ + struct ionic_dev *idev = &lif->adapter->idev; + struct ionic_qcq *new; + uint32_t q_size, cq_size, sg_size, total_size; + void *q_base, *cq_base, *sg_base; + rte_iova_t q_base_pa = 0; + rte_iova_t cq_base_pa = 0; + rte_iova_t sg_base_pa = 0; + uint32_t socket_id = rte_socket_id(); + int err; + + *qcq = NULL; + + q_size = num_descs * desc_size; + cq_size = num_descs * cq_desc_size; + sg_size = num_descs * sg_desc_size; + + total_size = RTE_ALIGN(q_size, PAGE_SIZE) + + RTE_ALIGN(cq_size, PAGE_SIZE); + /* + * Note: aligning q_size/cq_size is not enough due to cq_base address + * aligning as q_base could be not aligned to the page. + * Adding PAGE_SIZE. + */ + total_size += PAGE_SIZE; + + if (flags & IONIC_QCQ_F_SG) { + total_size += RTE_ALIGN(sg_size, PAGE_SIZE); + total_size += PAGE_SIZE; + } + + new = rte_zmalloc("ionic", sizeof(*new), 0); + + if (!new) { + IONIC_PRINT(ERR, "Cannot allocate queue structure"); + return -ENOMEM; + } + + new->lif = lif; + new->flags = flags; + + new->q.info = rte_zmalloc("ionic", sizeof(*new->q.info) * num_descs, 0); + + if (!new->q.info) { + IONIC_PRINT(ERR, "Cannot allocate queue info"); + return -ENOMEM; + } + + new->q.type = type; + + err = ionic_q_init(lif, idev, &new->q, index, num_descs, + desc_size, sg_desc_size, pid); + + if (err) { + IONIC_PRINT(ERR, "Queue initialization failed"); + return err; + } + + if (flags & IONIC_QCQ_F_INTR) { + err = ionic_intr_alloc(lif, &new->intr); + if (err) + return err; + + ionic_intr_mask_assert(idev->intr_ctrl, new->intr.index, + IONIC_INTR_MASK_SET); + } else { + new->intr.index = IONIC_INTR_INDEX_NOT_ASSIGNED; + } + + err = ionic_cq_init(lif, &new->cq, &new->intr, + num_descs, cq_desc_size); + if (err) { + IONIC_PRINT(ERR, "Completion queue initialization failed"); + goto err_out_free_intr; + } + + new->base_z = rte_eth_dma_zone_reserve(lif->eth_dev, + base /* name */, index /* queue_idx */, + total_size, IONIC_ALIGN, socket_id); + + if (!new->base_z) { + IONIC_PRINT(ERR, "Cannot reserve queue DMA memory"); + err = -ENOMEM; + goto err_out_free_intr; + } + + new->base = new->base_z->addr; + new->base_pa = new->base_z->iova; + new->total_size = total_size; + + q_base = new->base; + q_base_pa = new->base_pa; + + cq_base = (void *)RTE_ALIGN((uintptr_t)q_base + q_size, PAGE_SIZE); + cq_base_pa = RTE_ALIGN(q_base_pa + q_size, PAGE_SIZE); + + if (flags & IONIC_QCQ_F_SG) { + sg_base = (void *)RTE_ALIGN((uintptr_t)cq_base + cq_size, + PAGE_SIZE); + sg_base_pa = RTE_ALIGN(cq_base_pa + cq_size, PAGE_SIZE); + ionic_q_sg_map(&new->q, sg_base, sg_base_pa); + } + + IONIC_PRINT(DEBUG, "Q-Base-PA = %ju CQ-Base-PA = %ju " + "SG-base-PA = %ju", + q_base_pa, cq_base_pa, sg_base_pa); + + ionic_q_map(&new->q, q_base, q_base_pa); + ionic_cq_map(&new->cq, cq_base, cq_base_pa); + ionic_cq_bind(&new->cq, &new->q); + + *qcq = new; + + return 0; + +err_out_free_intr: + if (flags & IONIC_QCQ_F_INTR) + ionic_intr_free(lif, &new->intr); + + return err; +} + +void +ionic_qcq_free(struct ionic_qcq *qcq) +{ + if (qcq->base_z) { + qcq->base = NULL; + qcq->base_pa = 0; + rte_memzone_free(qcq->base_z); + qcq->base_z = NULL; + } + + if (qcq->q.info) { + rte_free(qcq->q.info); + qcq->q.info = NULL; + } + + rte_free(qcq); +} + +static int +ionic_admin_qcq_alloc(struct ionic_lif *lif) +{ + uint32_t flags; + int err = -ENOMEM; + + flags = 0; + err = ionic_qcq_alloc(lif, IONIC_QTYPE_ADMINQ, 0, "admin", flags, + IONIC_ADMINQ_LENGTH, + sizeof(struct ionic_admin_cmd), + sizeof(struct ionic_admin_comp), + 0, + lif->kern_pid, &lif->adminqcq); + + if (err) + return err; + + return 0; +} + static void * ionic_bus_map_dbpage(struct ionic_adapter *adapter, int page_num) { @@ -27,11 +280,15 @@ ionic_lif_alloc(struct ionic_lif *lif) struct ionic_adapter *adapter = lif->adapter; uint32_t socket_id = rte_socket_id(); int dbpage_num; + int err; snprintf(lif->name, sizeof(lif->name), "lif%u", lif->index); IONIC_PRINT(DEBUG, "Allocating Lif Info"); + rte_spinlock_init(&lif->adminq_lock); + rte_spinlock_init(&lif->adminq_service_lock); + lif->kern_pid = 0; dbpage_num = ionic_db_page_num(lif, 0); @@ -43,6 +300,17 @@ ionic_lif_alloc(struct ionic_lif *lif) return -ENOMEM; } + IONIC_PRINT(DEBUG, "Allocating Admin Queue"); + + err = ionic_admin_qcq_alloc(lif); + + if (err) { + IONIC_PRINT(ERR, "Cannot allocate admin queue"); + return err; + } + + IONIC_PRINT(DEBUG, "Allocating Lif Info"); + lif->info_sz = RTE_ALIGN(sizeof(*lif->info), PAGE_SIZE); lif->info_z = rte_eth_dma_zone_reserve(lif->eth_dev, @@ -63,12 +331,93 @@ ionic_lif_alloc(struct ionic_lif *lif) void ionic_lif_free(struct ionic_lif *lif) { + if (lif->adminqcq) { + ionic_qcq_free(lif->adminqcq); + lif->adminqcq = NULL; + } + if (lif->info) { rte_memzone_free(lif->info_z); lif->info = NULL; } } +static void +ionic_lif_qcq_deinit(struct ionic_lif *lif, struct ionic_qcq *qcq) +{ + struct ionic_dev *idev = &lif->adapter->idev; + + if (!(qcq->flags & IONIC_QCQ_F_INITED)) + return; + + if (qcq->flags & IONIC_QCQ_F_INTR) + ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, + IONIC_INTR_MASK_SET); + + qcq->flags &= ~IONIC_QCQ_F_INITED; +} + +bool +ionic_adminq_service(struct ionic_cq *cq, uint32_t cq_desc_index, + void *cb_arg __rte_unused) +{ + struct ionic_admin_comp *cq_desc_base = cq->base; + struct ionic_admin_comp *cq_desc = &cq_desc_base[cq_desc_index]; + + if (!color_match(cq_desc->color, cq->done_color)) + return false; + + ionic_q_service(cq->bound_q, cq_desc_index, cq_desc->comp_index, NULL); + + return true; +} + +/* This acts like ionic_napi */ +int +ionic_qcq_service(struct ionic_qcq *qcq, int budget, ionic_cq_cb cb, + void *cb_arg) +{ + struct ionic_cq *cq = &qcq->cq; + uint32_t work_done; + + work_done = ionic_cq_service(cq, budget, cb, cb_arg); + + return work_done; +} + +static int +ionic_lif_adminq_init(struct ionic_lif *lif) +{ + struct ionic_dev *idev = &lif->adapter->idev; + struct ionic_qcq *qcq = lif->adminqcq; + struct ionic_queue *q = &qcq->q; + struct ionic_q_init_comp comp; + int err; + + ionic_dev_cmd_adminq_init(idev, qcq, lif->index, qcq->intr.index); + err = ionic_dev_cmd_wait_check(idev, IONIC_DEVCMD_TIMEOUT); + if (err) + return err; + + ionic_dev_cmd_comp(idev, &comp); + + q->hw_type = comp.hw_type; + q->hw_index = comp.hw_index; + q->db = ionic_db_map(lif, q); + + IONIC_PRINT(DEBUG, "adminq->hw_type %d", q->hw_type); + IONIC_PRINT(DEBUG, "adminq->hw_index %d", q->hw_index); + IONIC_PRINT(DEBUG, "adminq->db %p", q->db); + + if (qcq->flags & IONIC_QCQ_F_INTR) + ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, + IONIC_INTR_MASK_CLEAR); + + qcq->flags |= IONIC_QCQ_F_INITED; + + return 0; +} + int ionic_lif_init(struct ionic_lif *lif) { @@ -84,6 +433,11 @@ ionic_lif_init(struct ionic_lif *lif) lif->hw_index = comp.hw_index; + err = ionic_lif_adminq_init(lif); + + if (err) + return err; + lif->state |= IONIC_LIF_F_INITED; return 0; @@ -95,6 +449,8 @@ ionic_lif_deinit(struct ionic_lif *lif) if (!(lif->state & IONIC_LIF_F_INITED)) return; + ionic_lif_qcq_deinit(lif, lif->adminqcq); + lif->state &= ~IONIC_LIF_F_INITED; } diff --git a/drivers/net/ionic/ionic_lif.h b/drivers/net/ionic/ionic_lif.h index 6e3233d1d..96522c544 100644 --- a/drivers/net/ionic/ionic_lif.h +++ b/drivers/net/ionic/ionic_lif.h @@ -13,6 +13,26 @@ #include "ionic_osdep.h" #include "ionic_dev.h" +#define IONIC_ADMINQ_LENGTH 16 /* must be a power of two */ + +#define IONIC_QCQ_F_INITED BIT(0) +#define IONIC_QCQ_F_SG BIT(1) +#define IONIC_QCQ_F_INTR BIT(2) + +/* Queue / Completion Queue */ +struct ionic_qcq { + struct ionic_queue q; /**< Queue */ + struct ionic_cq cq; /**< Completion Queue */ + struct ionic_lif *lif; /**< LIF */ + struct rte_mempool *mb_pool; /**< mbuf pool to populate the RX ring */ + const struct rte_memzone *base_z; + void *base; + rte_iova_t base_pa; + uint32_t total_size; + uint32_t flags; + struct ionic_intr_info intr; +}; + #define IONIC_LIF_F_INITED BIT(0) #define IONIC_LIF_NAME_MAX_SZ (32) @@ -25,6 +45,9 @@ struct ionic_lif { uint32_t hw_index; uint32_t state; uint32_t kern_pid; + rte_spinlock_t adminq_lock; + rte_spinlock_t adminq_service_lock; + struct ionic_qcq *adminqcq; struct ionic_doorbell __iomem *kern_dbpage; char name[IONIC_LIF_NAME_MAX_SZ]; uint32_t info_sz; @@ -47,4 +70,17 @@ int ionic_lif_start(struct ionic_lif *lif); int ionic_lif_configure(struct ionic_lif *lif); void ionic_lif_reset(struct ionic_lif *lif); +int ionic_intr_alloc(struct ionic_lif *lif, struct ionic_intr_info *intr); +void ionic_intr_free(struct ionic_lif *lif, struct ionic_intr_info *intr); + +bool ionic_adminq_service(struct ionic_cq *cq, uint32_t cq_desc_index, + void *cb_arg); +int ionic_qcq_service(struct ionic_qcq *qcq, int budget, ionic_cq_cb cb, + void *cb_arg); + +void ionic_qcq_free(struct ionic_qcq *qcq); + +int ionic_qcq_enable(struct ionic_qcq *qcq); +int ionic_qcq_disable(struct ionic_qcq *qcq); + #endif /* _IONIC_LIF_H_ */ diff --git a/drivers/net/ionic/ionic_main.c b/drivers/net/ionic/ionic_main.c index da558cdce..0d7e27530 100644 --- a/drivers/net/ionic/ionic_main.c +++ b/drivers/net/ionic/ionic_main.c @@ -5,6 +5,192 @@ #include #include "ionic.h" +#include "ionic_ethdev.h" +#include "ionic_lif.h" + +static const char * +ionic_error_to_str(enum ionic_status_code code) +{ + switch (code) { + case IONIC_RC_SUCCESS: + return "IONIC_RC_SUCCESS"; + case IONIC_RC_EVERSION: + return "IONIC_RC_EVERSION"; + case IONIC_RC_EOPCODE: + return "IONIC_RC_EOPCODE"; + case IONIC_RC_EIO: + return "IONIC_RC_EIO"; + case IONIC_RC_EPERM: + return "IONIC_RC_EPERM"; + case IONIC_RC_EQID: + return "IONIC_RC_EQID"; + case IONIC_RC_EQTYPE: + return "IONIC_RC_EQTYPE"; + case IONIC_RC_ENOENT: + return "IONIC_RC_ENOENT"; + case IONIC_RC_EINTR: + return "IONIC_RC_EINTR"; + case IONIC_RC_EAGAIN: + return "IONIC_RC_EAGAIN"; + case IONIC_RC_ENOMEM: + return "IONIC_RC_ENOMEM"; + case IONIC_RC_EFAULT: + return "IONIC_RC_EFAULT"; + case IONIC_RC_EBUSY: + return "IONIC_RC_EBUSY"; + case IONIC_RC_EEXIST: + return "IONIC_RC_EEXIST"; + case IONIC_RC_EINVAL: + return "IONIC_RC_EINVAL"; + case IONIC_RC_ENOSPC: + return "IONIC_RC_ENOSPC"; + case IONIC_RC_ERANGE: + return "IONIC_RC_ERANGE"; + case IONIC_RC_BAD_ADDR: + return "IONIC_RC_BAD_ADDR"; + case IONIC_RC_DEV_CMD: + return "IONIC_RC_DEV_CMD"; + case IONIC_RC_ERROR: + return "IONIC_RC_ERROR"; + case IONIC_RC_ERDMA: + return "IONIC_RC_ERDMA"; + default: + return "IONIC_RC_UNKNOWN"; + } +} + +static const char * +ionic_opcode_to_str(enum ionic_cmd_opcode opcode) +{ + switch (opcode) { + case IONIC_CMD_NOP: + return "IONIC_CMD_NOP"; + case IONIC_CMD_INIT: + return "IONIC_CMD_INIT"; + case IONIC_CMD_RESET: + return "IONIC_CMD_RESET"; + case IONIC_CMD_IDENTIFY: + return "IONIC_CMD_IDENTIFY"; + case IONIC_CMD_GETATTR: + return "IONIC_CMD_GETATTR"; + case IONIC_CMD_SETATTR: + return "IONIC_CMD_SETATTR"; + case IONIC_CMD_PORT_IDENTIFY: + return "IONIC_CMD_PORT_IDENTIFY"; + case IONIC_CMD_PORT_INIT: + return "IONIC_CMD_PORT_INIT"; + case IONIC_CMD_PORT_RESET: + return "IONIC_CMD_PORT_RESET"; + case IONIC_CMD_PORT_GETATTR: + return "IONIC_CMD_PORT_GETATTR"; + case IONIC_CMD_PORT_SETATTR: + return "IONIC_CMD_PORT_SETATTR"; + case IONIC_CMD_LIF_INIT: + return "IONIC_CMD_LIF_INIT"; + case IONIC_CMD_LIF_RESET: + return "IONIC_CMD_LIF_RESET"; + case IONIC_CMD_LIF_IDENTIFY: + return "IONIC_CMD_LIF_IDENTIFY"; + case IONIC_CMD_LIF_SETATTR: + return "IONIC_CMD_LIF_SETATTR"; + case IONIC_CMD_LIF_GETATTR: + return "IONIC_CMD_LIF_GETATTR"; + case IONIC_CMD_RX_MODE_SET: + return "IONIC_CMD_RX_MODE_SET"; + case IONIC_CMD_RX_FILTER_ADD: + return "IONIC_CMD_RX_FILTER_ADD"; + case IONIC_CMD_RX_FILTER_DEL: + return "IONIC_CMD_RX_FILTER_DEL"; + case IONIC_CMD_Q_INIT: + return "IONIC_CMD_Q_INIT"; + case IONIC_CMD_Q_CONTROL: + return "IONIC_CMD_Q_CONTROL"; + case IONIC_CMD_RDMA_RESET_LIF: + return "IONIC_CMD_RDMA_RESET_LIF"; + case IONIC_CMD_RDMA_CREATE_EQ: + return "IONIC_CMD_RDMA_CREATE_EQ"; + case IONIC_CMD_RDMA_CREATE_CQ: + return "IONIC_CMD_RDMA_CREATE_CQ"; + case IONIC_CMD_RDMA_CREATE_ADMINQ: + return "IONIC_CMD_RDMA_CREATE_ADMINQ"; + default: + return "DEVCMD_UNKNOWN"; + } +} + +int +ionic_adminq_check_err(struct ionic_admin_ctx *ctx, bool timeout) +{ + const char *name; + const char *status; + + if (ctx->comp.comp.status || timeout) { + name = ionic_opcode_to_str(ctx->cmd.cmd.opcode); + status = ionic_error_to_str(ctx->comp.comp.status); + IONIC_PRINT(ERR, "%s (%d) failed: %s (%d)", + name, + ctx->cmd.cmd.opcode, + timeout ? "TIMEOUT" : status, + timeout ? -1 : ctx->comp.comp.status); + return -EIO; + } + + return 0; +} + +static int +ionic_wait_ctx_for_completion(struct ionic_lif *lif, struct ionic_qcq *qcq, + struct ionic_admin_ctx *ctx, unsigned long max_wait) +{ + unsigned long step_msec = 1; + unsigned int max_wait_msec = max_wait * 1000; + unsigned long elapsed_msec = 0; + int budget = 8; + + while (ctx->pending_work && elapsed_msec < max_wait_msec) { + /* + * Locking here as adminq is served inline (this could be called + * from multiple places) + */ + rte_spinlock_lock(&lif->adminq_service_lock); + + ionic_qcq_service(qcq, budget, ionic_adminq_service, NULL); + + rte_spinlock_unlock(&lif->adminq_service_lock); + + msec_delay(step_msec); + elapsed_msec += step_msec; + } + + return (!ctx->pending_work); +} + +int +ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) +{ + struct ionic_qcq *qcq = lif->adminqcq; + bool done; + int err; + + IONIC_PRINT(DEBUG, "Sending %s to the admin queue", + ionic_opcode_to_str(ctx->cmd.cmd.opcode)); + + err = ionic_adminq_post(lif, ctx); + + if (err) { + IONIC_PRINT(ERR, "Failure posting to the admin queue %d (%d)", + ctx->cmd.cmd.opcode, err); + + return err; + } + + done = ionic_wait_ctx_for_completion(lif, qcq, ctx, + IONIC_DEVCMD_TIMEOUT); + + err = ionic_adminq_check_err(ctx, !done /* timed out */); + + return err; +} static int ionic_dev_cmd_wait(struct ionic_dev *idev, unsigned long max_wait) -- 2.17.1