static_always_inline void
rdma_device_input_refill (vlib_main_t * vm, rdma_device_t * rd,
- rdma_rxq_t * rxq)
+ rdma_rxq_t * rxq, int is_mlx5dv)
{
u32 n_alloc, n;
struct ibv_recv_wr wr[VLIB_FRAME_SIZE], *w = wr;
n_alloc = n;
+ if (is_mlx5dv)
+ {
+ u64 va[8];
+ mlx5dv_rwq_t *wqe = rxq->wqes + slot;
+
+ while (n >= 1)
+ {
+ vlib_get_buffers_with_offset (vm, rxq->bufs + slot, (void **) va, 8,
+ sizeof (vlib_buffer_t));
+#ifdef CLIB_HAVE_VEC256
+ *(u64x4 *) va = u64x4_byte_swap (*(u64x4 *) va);
+ *(u64x4 *) (va + 4) = u64x4_byte_swap (*(u64x4 *) (va + 4));
+#else
+ for (int i = 0; i < 8; i++)
+ va[i] = clib_host_to_net_u64 (va[i]);
+#endif
+ wqe[0].addr = va[0];
+ wqe[1].addr = va[1];
+ wqe[2].addr = va[2];
+ wqe[3].addr = va[3];
+ wqe[4].addr = va[4];
+ wqe[5].addr = va[5];
+ wqe[6].addr = va[6];
+ wqe[7].addr = va[7];
+ wqe += 8;
+ slot += 8;
+ n -= 8;
+ }
+
+ CLIB_MEMORY_STORE_BARRIER ();
+ rxq->tail += n_alloc;
+ rxq->wq_db[MLX5_RCV_DBR] = clib_host_to_net_u32 (rxq->tail);
+ return;
+ }
+
while (n >= 8)
{
u64 va[8];
static_always_inline void
rdma_device_input_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
const rdma_device_t * rd, u32 n_left, const u32 * bi,
- u32 next_index)
+ u32 next_index, u16 * cqe_flags, int is_mlx5dv)
{
u32 n_trace, i;
tr = vlib_add_trace (vm, node, b, sizeof (*tr));
tr->next_index = next_index;
tr->hw_if_index = rd->hw_if_index;
+ tr->cqe_flags = is_mlx5dv ? clib_net_to_host_u16 (cqe_flags[0]) : 0;
/* next */
n_trace--;
n_left--;
+ cqe_flags++;
bi++;
i++;
}
static_always_inline void
rdma_device_input_ethernet (vlib_main_t * vm, vlib_node_runtime_t * node,
- const rdma_device_t * rd, u32 next_index)
+ const rdma_device_t * rd, u32 next_index,
+ int skip_ip4_cksum)
{
vlib_next_frame_t *nf;
vlib_frame_t *f;
VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT);
f = vlib_get_frame (vm, nf->frame);
f->flags = ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX;
- /* FIXME: f->flags |= ETH_INPUT_FRAME_F_IP4_CKSUM_OK; */
+ if (skip_ip4_cksum)
+ f->flags |= ETH_INPUT_FRAME_F_IP4_CKSUM_OK;
ef = vlib_frame_scalar_args (f);
ef->sw_if_index = rd->sw_if_index;
}
static_always_inline u32
-rdma_device_input_bufs (vlib_main_t * vm, const rdma_device_t * rd, u32 * bi,
- struct ibv_wc * wc, u32 n_left_from,
- vlib_buffer_t * bt)
+rdma_device_input_bufs (vlib_main_t * vm, const rdma_device_t * rd,
+ vlib_buffer_t ** b, struct ibv_wc *wc,
+ u32 n_left_from, vlib_buffer_t * bt)
{
- vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
u32 n_rx_bytes = 0;
- vlib_get_buffers (vm, bi, bufs, n_left_from);
- ASSERT (bt->buffer_pool_index == bufs[0]->buffer_pool_index);
-
while (n_left_from >= 4)
{
if (PREDICT_TRUE (n_left_from >= 8))
return n_rx_bytes;
}
+static_always_inline void
+process_mini_cqes (rdma_rxq_t * rxq, u32 skip, u32 n_left, u32 cq_ci,
+ u32 mask, u32 * byte_cnt)
+{
+ mlx5dv_mini_cqe_t *mcqe;
+ u32 mcqe_array_index = (cq_ci + 1) & mask;
+ mcqe = (mlx5dv_mini_cqe_t *) (rxq->cqes + mcqe_array_index);
+
+ mcqe_array_index = cq_ci;
+
+ if (skip)
+ {
+ u32 n = skip & ~7;
+
+ if (n)
+ {
+ mcqe_array_index = (mcqe_array_index + n) & mask;
+ mcqe = (mlx5dv_mini_cqe_t *) (rxq->cqes + mcqe_array_index);
+ skip -= n;
+ }
+
+ if (skip)
+ {
+ n = clib_min (8 - skip, n_left);
+ for (int i = 0; i < n; i++)
+ byte_cnt[i] = mcqe[skip + i].byte_count;
+ mcqe_array_index = (mcqe_array_index + 8) & mask;
+ mcqe = (mlx5dv_mini_cqe_t *) (rxq->cqes + mcqe_array_index);
+ n_left -= n;
+ byte_cnt += n;
+ }
+
+ }
+
+ while (n_left >= 8)
+ {
+ for (int i = 0; i < 8; i++)
+ byte_cnt[i] = mcqe[i].byte_count;
+
+ n_left -= 8;
+ byte_cnt += 8;
+ mcqe_array_index = (mcqe_array_index + 8) & mask;
+ mcqe = (mlx5dv_mini_cqe_t *) (rxq->cqes + mcqe_array_index);
+ }
+
+ if (n_left)
+ {
+ for (int i = 0; i < n_left; i++)
+ byte_cnt[i] = mcqe[i].byte_count;
+ }
+}
+
+static_always_inline void
+cqe_set_owner (mlx5dv_cqe_t * cqe, u32 n_left, u8 owner)
+{
+ while (n_left >= 8)
+ {
+ cqe[0].opcode_cqefmt_se_owner = owner;
+ cqe[1].opcode_cqefmt_se_owner = owner;
+ cqe[2].opcode_cqefmt_se_owner = owner;
+ cqe[3].opcode_cqefmt_se_owner = owner;
+ cqe[4].opcode_cqefmt_se_owner = owner;
+ cqe[5].opcode_cqefmt_se_owner = owner;
+ cqe[6].opcode_cqefmt_se_owner = owner;
+ cqe[7].opcode_cqefmt_se_owner = owner;
+ n_left -= 8;
+ cqe += 8;
+ }
+ while (n_left)
+ {
+ cqe[0].opcode_cqefmt_se_owner = owner;
+ n_left--;
+ cqe++;
+ }
+}
+
+static_always_inline void
+compressed_cqe_reset_owner (rdma_rxq_t * rxq, u32 n_mini_cqes, u32 cq_ci,
+ u32 mask, u32 log2_cq_size)
+{
+ u8 owner;
+ u32 offset, cq_size = 1 << log2_cq_size;
+
+
+ /* first CQE is reset by hardware */
+ cq_ci++;
+ n_mini_cqes--;
+
+ offset = cq_ci & mask;
+ owner = 0xf0 | ((cq_ci >> log2_cq_size) & 1);
+
+ if (offset + n_mini_cqes < cq_size)
+ {
+ cqe_set_owner (rxq->cqes + offset, n_mini_cqes, owner);
+ }
+ else
+ {
+ u32 n = cq_size - offset;
+ cqe_set_owner (rxq->cqes + offset, n, owner);
+ cqe_set_owner (rxq->cqes, n_mini_cqes - n, owner ^ 1);
+ }
+
+}
+
+static_always_inline uword
+rdma_device_poll_cq_mlx5dv (rdma_device_t * rd, rdma_rxq_t * rxq,
+ u32 * byte_cnt, u16 * cqe_flags)
+{
+ u32 n_rx_packets = 0;
+ u32 log2_cq_size = rxq->log2_cq_size;
+ u32 mask = pow2_mask (log2_cq_size);
+ u32 cq_ci = rxq->cq_ci;
+
+ if (rxq->n_mini_cqes_left)
+ {
+ /* partially processed mini-cqe array */
+ u32 n_mini_cqes = rxq->n_mini_cqes;
+ u32 n_mini_cqes_left = rxq->n_mini_cqes_left;
+ process_mini_cqes (rxq, n_mini_cqes - n_mini_cqes_left,
+ n_mini_cqes_left, cq_ci, mask, byte_cnt);
+ compressed_cqe_reset_owner (rxq, n_mini_cqes, cq_ci, mask,
+ log2_cq_size);
+ clib_memset_u16 (cqe_flags, rxq->last_cqe_flags, n_mini_cqes_left);
+ n_rx_packets = n_mini_cqes_left;
+ byte_cnt += n_mini_cqes_left;
+ cqe_flags += n_mini_cqes_left;
+ rxq->n_mini_cqes_left = 0;
+ rxq->cq_ci = cq_ci = cq_ci + n_mini_cqes;
+ }
+
+ while (n_rx_packets < VLIB_FRAME_SIZE)
+ {
+ u8 cqe_last_byte, owner;
+ mlx5dv_cqe_t *cqe = rxq->cqes + (cq_ci & mask);
+
+ clib_prefetch_load (rxq->cqes + ((cq_ci + 8) & mask));
+
+ owner = (cq_ci >> log2_cq_size) & 1;
+ cqe_last_byte = cqe->opcode_cqefmt_se_owner;
+
+ if ((cqe_last_byte & 0x1) != owner)
+ break;
+
+ cqe_last_byte &= 0xfe; /* remove owner bit */
+
+ if (cqe_last_byte == 0x2c)
+ {
+ u32 n_mini_cqes = clib_net_to_host_u32 (cqe->mini_cqe_num);
+ u32 n_left = VLIB_FRAME_SIZE - n_rx_packets;
+ u16 flags = cqe->flags;
+
+ if (n_left >= n_mini_cqes)
+ {
+ process_mini_cqes (rxq, 0, n_mini_cqes, cq_ci, mask, byte_cnt);
+ clib_memset_u16 (cqe_flags, flags, n_mini_cqes);
+ compressed_cqe_reset_owner (rxq, n_mini_cqes, cq_ci, mask,
+ log2_cq_size);
+ n_rx_packets += n_mini_cqes;
+ byte_cnt += n_mini_cqes;
+ cqe_flags += n_mini_cqes;
+ cq_ci += n_mini_cqes;
+ }
+ else
+ {
+ process_mini_cqes (rxq, 0, n_left, cq_ci, mask, byte_cnt);
+ clib_memset_u16 (cqe_flags, flags, n_left);
+ n_rx_packets = VLIB_FRAME_SIZE;
+ rxq->n_mini_cqes = n_mini_cqes;
+ rxq->n_mini_cqes_left = n_mini_cqes - n_left;
+ rxq->last_cqe_flags = flags;
+ goto done;
+ }
+ continue;
+ }
+
+ if (cqe_last_byte == 0x20)
+ {
+ byte_cnt[0] = cqe->byte_cnt;
+ cqe_flags[0] = cqe->flags;
+ n_rx_packets++;
+ cq_ci++;
+ byte_cnt++;
+ continue;
+ }
+
+ rd->flags |= RDMA_DEVICE_F_ERROR;
+ break;
+ }
+
+done:
+ if (n_rx_packets)
+ rxq->cq_db[0] = rxq->cq_ci = cq_ci;
+ return n_rx_packets;
+}
+
static_always_inline uword
rdma_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame, rdma_device_t * rd, u16 qid)
+ vlib_frame_t * frame, rdma_device_t * rd, u16 qid,
+ int use_mlx5dv)
{
rdma_main_t *rm = &rdma_main;
vnet_main_t *vnm = vnet_get_main ();
rdma_per_thread_data_t *ptd = vec_elt_at_index (rm->per_thread_data,
vm->thread_index);
rdma_rxq_t *rxq = vec_elt_at_index (rd->rxqs, qid);
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
struct ibv_wc wc[VLIB_FRAME_SIZE];
+ u32 byte_cnts[VLIB_FRAME_SIZE];
vlib_buffer_t bt;
- u32 next_index, *to_next, n_left_to_next;
- u32 n_rx_packets, n_rx_bytes;
+ u32 next_index, *to_next, n_left_to_next, n_rx_bytes = 0;
+ int n_rx_packets, skip_ip4_cksum = 0;
u32 mask = rxq->size - 1;
- ASSERT (rxq->size >= VLIB_FRAME_SIZE && is_pow2 (rxq->size));
- ASSERT (rxq->tail - rxq->head <= rxq->size);
-
- n_rx_packets = ibv_poll_cq (rxq->cq, VLIB_FRAME_SIZE, wc);
- ASSERT (n_rx_packets <= rxq->tail - rxq->head);
+ if (use_mlx5dv)
+ n_rx_packets = rdma_device_poll_cq_mlx5dv (rd, rxq, byte_cnts,
+ ptd->cqe_flags);
+ else
+ n_rx_packets = ibv_poll_cq (rxq->cq, VLIB_FRAME_SIZE, wc);
if (PREDICT_FALSE (n_rx_packets <= 0))
goto refill;
vnet_feature_start_device_input_x1 (rd->sw_if_index, &next_index, &bt);
vlib_get_new_next_frame (vm, node, next_index, to_next, n_left_to_next);
- ASSERT (n_rx_packets <= n_left_to_next);
vlib_buffer_copy_indices_from_ring (to_next, rxq->bufs, rxq->head & mask,
rxq->size, n_rx_packets);
- n_rx_bytes = rdma_device_input_bufs (vm, rd, to_next, wc, n_rx_packets,
- &bt);
- rdma_device_input_ethernet (vm, node, rd, next_index);
+ vlib_get_buffers (vm, to_next, bufs, n_rx_packets);
+
+ if (use_mlx5dv)
+ {
+ u16 mask = CQE_FLAG_L3_HDR_TYPE_MASK | CQE_FLAG_L3_OK;
+ u16 match = CQE_FLAG_L3_HDR_TYPE_IP4 << CQE_FLAG_L3_HDR_TYPE_SHIFT;
+ u32 n_left = n_rx_packets;
+ u32 *bc = byte_cnts;
+
+ /* verify that all ip4 packets have l3_ok flag set and convert packet
+ length from network to host byte order */
+ skip_ip4_cksum = 1;
+
+#if defined CLIB_HAVE_VEC256
+ u16x16 mask16 = u16x16_splat (mask);
+ u16x16 match16 = u16x16_splat (match);
+ u16x16 r = { };
+
+ for (int i = 0; i * 16 < n_rx_packets; i++)
+ r |= (ptd->cqe_flags16[i] & mask16) != match16;
+
+ if (!u16x16_is_all_zero (r))
+ skip_ip4_cksum = 0;
+
+ for (int i = 0; i < n_rx_packets; i += 8)
+ *(u32x8 *) (bc + i) = u32x8_byte_swap (*(u32x8 *) (bc + i));
+#elif defined CLIB_HAVE_VEC128
+ u16x8 mask8 = u16x8_splat (mask);
+ u16x8 match8 = u16x8_splat (match);
+ u16x8 r = { };
+
+ for (int i = 0; i * 8 < n_rx_packets; i++)
+ r |= (ptd->cqe_flags8[i] & mask8) != match8;
+
+ if (!u16x8_is_all_zero (r))
+ skip_ip4_cksum = 0;
+
+ for (int i = 0; i < n_rx_packets; i += 4)
+ *(u32x4 *) (bc + i) = u32x4_byte_swap (*(u32x4 *) (bc + i));
+#else
+ for (int i = 0; i < n_rx_packets; i++)
+ if ((ptd->cqe_flags[i] & mask) == match)
+ skip_ip4_cksum = 0;
+
+ for (int i = 0; i < n_rx_packets; i++)
+ bc[i] = clib_net_to_host_u32 (bc[i]);
+#endif
+
+ while (n_left >= 8)
+ {
+ clib_prefetch_store (b[4]);
+ vlib_buffer_copy_template (b[0], &bt);
+ n_rx_bytes += b[0]->current_length = bc[0];
+ clib_prefetch_store (b[5]);
+ vlib_buffer_copy_template (b[1], &bt);
+ n_rx_bytes += b[1]->current_length = bc[1];
+ clib_prefetch_store (b[6]);
+ vlib_buffer_copy_template (b[2], &bt);
+ n_rx_bytes += b[2]->current_length = bc[2];
+ clib_prefetch_store (b[7]);
+ vlib_buffer_copy_template (b[3], &bt);
+ n_rx_bytes += b[3]->current_length = bc[3];
+
+ /* next */
+ bc += 4;
+ b += 4;
+ n_left -= 4;
+ }
+ while (n_left)
+ {
+ vlib_buffer_copy_template (b[0], &bt);
+ n_rx_bytes += b[0]->current_length = bc[0];
+
+ /* next */
+ bc++;
+ b++;
+ n_left--;
+ }
+ }
+ else
+ n_rx_bytes = rdma_device_input_bufs (vm, rd, bufs, wc, n_rx_packets, &bt);
+
+ rdma_device_input_ethernet (vm, node, rd, next_index, skip_ip4_cksum);
vlib_put_next_frame (vm, node, next_index, n_left_to_next - n_rx_packets);
rxq->head += n_rx_packets;
- rdma_device_input_trace (vm, node, rd, n_rx_packets, to_next, next_index);
+ rdma_device_input_trace (vm, node, rd, n_rx_packets, to_next, next_index,
+ ptd->cqe_flags, use_mlx5dv);
+
+ /* reset flags to zero for the next run */
+ if (use_mlx5dv)
+ clib_memset_u16 (ptd->cqe_flags, 0, VLIB_FRAME_SIZE);
vlib_increment_combined_counter
(vnm->interface_main.combined_sw_if_counters +
rd->hw_if_index, n_rx_packets, n_rx_bytes);
refill:
- rdma_device_input_refill (vm, rd, rxq);
+ rdma_device_input_refill (vm, rd, rxq, use_mlx5dv);
return n_rx_packets;
}
{
rdma_device_t *rd;
rd = vec_elt_at_index (rm->devices, dq->dev_instance);
- if (PREDICT_TRUE (rd->flags & RDMA_DEVICE_F_ADMIN_UP))
- n_rx += rdma_device_input_inline (vm, node, frame, rd, dq->queue_id);
+ if (PREDICT_TRUE (rd->flags & RDMA_DEVICE_F_ADMIN_UP) == 0)
+ continue;
+
+ if (PREDICT_TRUE (rd->flags & RDMA_DEVICE_F_ERROR))
+ continue;
+
+ if (PREDICT_TRUE (rd->flags & RDMA_DEVICE_F_MLX5DV))
+ n_rx += rdma_device_input_inline (vm, node, frame, rd, dq->queue_id, 1);
+ else
+ n_rx += rdma_device_input_inline (vm, node, frame, rd, dq->queue_id, 0);
}
return n_rx;
}
Code Review / vpp.git / blobdiff