Add rawdev enqueue operation for zxdh devices.
Signed-off-by: Yong Zhang <zhang.yong25@zte.com.cn>
---
drivers/raw/zxdh/zxdh_rawdev.c | 220 +++++++++++++++++++++++++++++++++
drivers/raw/zxdh/zxdh_rawdev.h | 19 +++
2 files changed, 239 insertions(+)
diff --git a/drivers/raw/zxdh/zxdh_rawdev.c b/drivers/raw/zxdh/zxdh_rawdev.c
index ce83c3b626..76b8f7f728 100644
--- a/drivers/raw/zxdh/zxdh_rawdev.c
+++ b/drivers/raw/zxdh/zxdh_rawdev.c
@@ -51,10 +51,34 @@
/* Register offset */
#define ZXDH_GDMA_BASE_OFFSET 0x100000
#define ZXDH_GDMA_EXT_ADDR_OFFSET 0x218
+#define ZXDH_GDMA_SAR_LOW_OFFSET 0x200
+#define ZXDH_GDMA_DAR_LOW_OFFSET 0x204
+#define ZXDH_GDMA_SAR_HIGH_OFFSET 0x234
+#define ZXDH_GDMA_DAR_HIGH_OFFSET 0x238
+#define ZXDH_GDMA_XFERSIZE_OFFSET 0x208
#define ZXDH_GDMA_CONTROL_OFFSET 0x230
+#define ZXDH_GDMA_TC_STATUS_OFFSET 0x0
+#define ZXDH_GDMA_STATUS_CLEAN_OFFSET 0x80
+#define ZXDH_GDMA_LLI_L_OFFSET 0x21c
+#define ZXDH_GDMA_LLI_H_OFFSET 0x220
+#define ZXDH_GDMA_CHAN_CONTINUE_OFFSET 0x224
#define ZXDH_GDMA_TC_CNT_OFFSET 0x23c
#define ZXDH_GDMA_LLI_USER_OFFSET 0x228
+/* Control register */
+#define ZXDH_GDMA_CHAN_ENABLE 0x1
+#define ZXDH_GDMA_CHAN_DISABLE 0
+#define ZXDH_GDMA_SOFT_CHAN 0x2
+#define ZXDH_GDMA_TC_INTR_ENABLE 0x10
+#define ZXDH_GDMA_ALL_INTR_ENABLE 0x30
+#define ZXDH_GDMA_SBS_SHIFT 6 /* src burst size */
+#define ZXDH_GDMA_SBL_SHIFT 9 /* src burst length */
+#define ZXDH_GDMA_DBS_SHIFT 13 /* dest burst size */
+#define ZXDH_GDMA_BURST_SIZE_MIN 0x1 /* 1 byte */
+#define ZXDH_GDMA_BURST_SIZE_MEDIUM 0x4 /* 4 word */
+#define ZXDH_GDMA_BURST_SIZE_MAX 0x6 /* 16 word */
+#define ZXDH_GDMA_DEFAULT_BURST_LEN 0xf /* 16 beats */
+#define ZXDH_GDMA_TC_CNT_ENABLE (1 << 27)
#define ZXDH_GDMA_CHAN_FORCE_CLOSE (1 << 31)
/* TC count & Error interrupt status register */
@@ -66,9 +90,15 @@
#define ZXDH_GDMA_TC_CNT_CLEAN (1)
#define ZXDH_GDMA_CHAN_SHIFT 0x80
+#define ZXDH_GDMA_LINK_END_NODE (1 << 30)
+#define ZXDH_GDMA_CHAN_CONTINUE (1)
+
#define LOW32_MASK 0xffffffff
#define LOW16_MASK 0xffff
+#define IDX_TO_ADDR(addr, idx, t) \
+ ((t)((uintptr_t)(addr) + (idx) * sizeof(struct zxdh_gdma_buff_desc)))
+
static int zxdh_gdma_queue_init(struct rte_rawdev *dev, uint16_t queue_id);
static int zxdh_gdma_queue_free(struct rte_rawdev *dev, uint16_t queue_id);
@@ -316,6 +346,194 @@ zxdh_gdma_rawdev_get_attr(struct rte_rawdev *dev,
return 0;
}
+
+static inline void
+zxdh_gdma_control_cal(uint *val, uint8_t tc_enable)
+{
+ *val = (ZXDH_GDMA_CHAN_ENABLE |
+ ZXDH_GDMA_SOFT_CHAN |
+ (ZXDH_GDMA_DEFAULT_BURST_LEN << ZXDH_GDMA_SBL_SHIFT) |
+ (ZXDH_GDMA_BURST_SIZE_MAX << ZXDH_GDMA_SBS_SHIFT) |
+ (ZXDH_GDMA_BURST_SIZE_MAX << ZXDH_GDMA_DBS_SHIFT));
+
+ if (tc_enable != 0)
+ *val |= ZXDH_GDMA_TC_CNT_ENABLE;
+}
+
+static inline uint
+zxdh_gdma_user_get(struct zxdh_gdma_queue *queue, struct zxdh_gdma_job *job)
+{
+ uint src_user = 0;
+ uint dst_user = 0;
+
+ if ((job->flags & ZXDH_GDMA_JOB_DIR_MASK) == 0) {
+ ZXDH_PMD_LOG(DEBUG, "job flags:0x%x default user:0x%x",
+ job->flags, queue->user);
+ return queue->user;
+ } else if ((job->flags & ZXDH_GDMA_JOB_DIR_TX) != 0) {
+ src_user = ZXDH_GDMA_ZF_USER;
+ dst_user = ((job->pf_id << ZXDH_GDMA_PF_NUM_SHIFT) |
+ ((job->ep_id + ZXDH_GDMA_EPID_OFFSET) << ZXDH_GDMA_EP_ID_SHIFT));
+
+ if (job->vf_id != 0)
+ dst_user |= (ZXDH_GDMA_VF_EN |
+ ((job->vf_id - 1) << ZXDH_GDMA_VF_NUM_SHIFT));
+ } else {
+ dst_user = ZXDH_GDMA_ZF_USER;
+ src_user = ((job->pf_id << ZXDH_GDMA_PF_NUM_SHIFT) |
+ ((job->ep_id + ZXDH_GDMA_EPID_OFFSET) << ZXDH_GDMA_EP_ID_SHIFT));
+
+ if (job->vf_id != 0)
+ src_user |= (ZXDH_GDMA_VF_EN |
+ ((job->vf_id - 1) << ZXDH_GDMA_VF_NUM_SHIFT));
+ }
+ ZXDH_PMD_LOG(DEBUG, "job flags:0x%x ep_id:%u, pf_id:%u, vf_id:%u, user:0x%x",
+ job->flags, job->ep_id, job->pf_id, job->vf_id,
+ (src_user & LOW16_MASK) | (dst_user << 16));
+
+ return (src_user & LOW16_MASK) | (dst_user << 16);
+}
+
+static inline void
+zxdh_gdma_fill_bd(struct zxdh_gdma_queue *queue, struct zxdh_gdma_job *job)
+{
+ struct zxdh_gdma_buff_desc *bd = NULL;
+ uint val = 0;
+ uint64_t next_bd_addr = 0;
+ uint16_t avail_idx = 0;
+
+ avail_idx = queue->ring.avail_idx;
+ bd = &(queue->ring.desc[avail_idx]);
+ memset(bd, 0, sizeof(struct zxdh_gdma_buff_desc));
+
+ /* data bd */
+ if (job != NULL) {
+ zxdh_gdma_control_cal(&val, 1);
+ next_bd_addr = IDX_TO_ADDR(queue->ring.ring_mem,
+ (avail_idx + 1) % ZXDH_GDMA_RING_SIZE,
+ uint64_t);
+ bd->SrcAddr_L = job->src & LOW32_MASK;
+ bd->DstAddr_L = job->dest & LOW32_MASK;
+ bd->SrcAddr_H = (job->src >> 32) & LOW32_MASK;
+ bd->DstAddr_H = (job->dest >> 32) & LOW32_MASK;
+ bd->Xpara = job->len;
+ bd->ExtAddr = zxdh_gdma_user_get(queue, job);
+ bd->LLI_Addr_L = (next_bd_addr >> 6) & LOW32_MASK;
+ bd->LLI_Addr_H = next_bd_addr >> 38;
+ bd->LLI_User = ZXDH_GDMA_ZF_USER;
+ bd->Control = val;
+ } else {
+ zxdh_gdma_control_cal(&val, 0);
+ next_bd_addr = IDX_TO_ADDR(queue->ring.ring_mem, avail_idx, uint64_t);
+ bd->ExtAddr = queue->user;
+ bd->LLI_User = ZXDH_GDMA_ZF_USER;
+ bd->Control = val;
+ bd->LLI_Addr_L = (next_bd_addr >> 6) & LOW32_MASK;
+ bd->LLI_Addr_H = (next_bd_addr >> 38) | ZXDH_GDMA_LINK_END_NODE;
+ if (queue->flag != 0) {
+ bd = IDX_TO_ADDR(queue->ring.desc,
+ queue->ring.last_avail_idx,
+ struct zxdh_gdma_buff_desc*);
+ next_bd_addr = IDX_TO_ADDR(queue->ring.ring_mem,
+ (queue->ring.last_avail_idx + 1) % ZXDH_GDMA_RING_SIZE,
+ uint64_t);
+ bd->LLI_Addr_L = (next_bd_addr >> 6) & LOW32_MASK;
+ bd->LLI_Addr_H = next_bd_addr >> 38;
+ rte_wmb();
+ bd->LLI_Addr_H &= ~ZXDH_GDMA_LINK_END_NODE;
+ }
+ /* Record the index of empty bd for dynamic chaining */
+ queue->ring.last_avail_idx = avail_idx;
+ }
+
+ if (++avail_idx >= ZXDH_GDMA_RING_SIZE)
+ avail_idx -= ZXDH_GDMA_RING_SIZE;
+
+ queue->ring.avail_idx = avail_idx;
+}
+
+static int
+zxdh_gdma_rawdev_enqueue_bufs(struct rte_rawdev *dev,
+ __rte_unused struct rte_rawdev_buf **buffers,
+ uint count,
+ rte_rawdev_obj_t context)
+{
+ struct zxdh_gdma_rawdev *gdmadev = NULL;
+ struct zxdh_gdma_queue *queue = NULL;
+ struct zxdh_gdma_enqdeq *e_context = NULL;
+ struct zxdh_gdma_job *job = NULL;
+ uint16_t queue_id = 0;
+ uint val = 0;
+ uint16_t i = 0;
+ uint16_t free_cnt = 0;
+
+ if (dev == NULL)
+ return -EINVAL;
+
+ if (unlikely((count < 1) || (context == NULL)))
+ return -EINVAL;
+
+ gdmadev = zxdh_gdma_rawdev_get_priv(dev);
+ if (gdmadev->device_state == ZXDH_GDMA_DEV_STOPPED) {
+ ZXDH_PMD_LOG(ERR, "gdma dev is stop");
+ return 0;
+ }
+
+ e_context = (struct zxdh_gdma_enqdeq *)context;
+ queue_id = e_context->vq_id;
+ queue = zxdh_gdma_get_queue(dev, queue_id);
+ if ((queue == NULL) || (queue->enable == 0))
+ return -EINVAL;
+
+ free_cnt = queue->sw_ring.free_cnt;
+ if (free_cnt == 0) {
+ ZXDH_PMD_LOG(ERR, "queue %u is full, enq_idx:%u deq_idx:%u used_idx:%u",
+ queue_id, queue->sw_ring.enq_idx,
+ queue->sw_ring.deq_idx, queue->sw_ring.used_idx);
+ return 0;
+ } else if (free_cnt < count) {
+ ZXDH_PMD_LOG(DEBUG, "job num %u > free_cnt, change to %u", count, free_cnt);
+ count = free_cnt;
+ }
+
+ rte_spinlock_lock(&queue->enqueue_lock);
+
+ /* Build bd list, the last bd is empty bd */
+ for (i = 0; i < count; i++) {
+ job = e_context->job[i];
+ zxdh_gdma_fill_bd(queue, job);
+ }
+ zxdh_gdma_fill_bd(queue, NULL);
+
+ if (unlikely(queue->flag == 0)) {
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_LLI_L_OFFSET,
+ (queue->ring.ring_mem >> 6) & LOW32_MASK);
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_LLI_H_OFFSET,
+ queue->ring.ring_mem >> 38);
+ /* Start hardware handling */
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_XFERSIZE_OFFSET, 0);
+ zxdh_gdma_control_cal(&val, 0);
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_CONTROL_OFFSET, val);
+ queue->flag = 1;
+ } else {
+ val = ZXDH_GDMA_CHAN_CONTINUE;
+ zxdh_gdma_write_reg(dev, queue->vq_id, ZXDH_GDMA_CHAN_CONTINUE_OFFSET, val);
+ }
+
+ /* job enqueue */
+ for (i = 0; i < count; i++) {
+ queue->sw_ring.job[queue->sw_ring.enq_idx] = e_context->job[i];
+ if (++queue->sw_ring.enq_idx >= queue->queue_size)
+ queue->sw_ring.enq_idx -= queue->queue_size;
+
+ free_cnt--;
+ }
+ queue->sw_ring.free_cnt = free_cnt;
+ queue->sw_ring.pend_cnt += count;
+ rte_spinlock_unlock(&queue->enqueue_lock);
+
+ return count;
+}
static const struct rte_rawdev_ops zxdh_gdma_rawdev_ops = {
.dev_info_get = zxdh_gdma_rawdev_info_get,
.dev_configure = zxdh_gdma_rawdev_configure,
@@ -328,6 +546,8 @@ static const struct rte_rawdev_ops zxdh_gdma_rawdev_ops = {
.queue_release = zxdh_gdma_rawdev_queue_release,
.attr_get = zxdh_gdma_rawdev_get_attr,
+
+ .enqueue_bufs = zxdh_gdma_rawdev_enqueue_bufs,
};
static int
diff --git a/drivers/raw/zxdh/zxdh_rawdev.h b/drivers/raw/zxdh/zxdh_rawdev.h
index b4e923261d..643c8be593 100644
--- a/drivers/raw/zxdh/zxdh_rawdev.h
+++ b/drivers/raw/zxdh/zxdh_rawdev.h
@@ -26,6 +26,20 @@ extern int zxdh_gdma_rawdev_logtype;
#define ZXDH_GDMA_QUEUE_SIZE 16384
#define ZXDH_GDMA_RING_SIZE 32768
+/* States if the source addresses is physical. */
+#define ZXDH_GDMA_JOB_SRC_PHY (1UL)
+
+/* States if the destination addresses is physical. */
+#define ZXDH_GDMA_JOB_DEST_PHY (1UL << 1)
+
+/* ZF->HOST */
+#define ZXDH_GDMA_JOB_DIR_TX (1UL << 2)
+
+/* HOST->ZF */
+#define ZXDH_GDMA_JOB_DIR_RX (1UL << 3)
+
+#define ZXDH_GDMA_JOB_DIR_MASK (ZXDH_GDMA_JOB_DIR_TX | ZXDH_GDMA_JOB_DIR_RX)
+
enum zxdh_gdma_device_state {
ZXDH_GDMA_DEV_RUNNING,
ZXDH_GDMA_DEV_STOPPED
@@ -102,6 +116,11 @@ struct zxdh_gdma_rawdev {
struct zxdh_gdma_queue vqs[ZXDH_GDMA_TOTAL_CHAN_NUM];
};
+struct zxdh_gdma_enqdeq {
+ uint16_t vq_id;
+ struct zxdh_gdma_job **job;
+};
+
struct zxdh_gdma_config {
uint16_t max_hw_queues_per_core;
uint16_t max_vqs;
--
2.43.0