if (skb->encapsulation) {
eseg->cs_flags |= MLX5_ETH_WQE_L3_INNER_CSUM |
MLX5_ETH_WQE_L4_INNER_CSUM;
- sq->stats.csum_partial_inner++;
+ sq->stats->csum_partial_inner++;
} else {
eseg->cs_flags |= MLX5_ETH_WQE_L4_CSUM;
- sq->stats.csum_partial++;
+ sq->stats->csum_partial++;
}
} else
- sq->stats.csum_none++;
+ sq->stats->csum_none++;
}
static inline u16
-mlx5e_txwqe_build_eseg_gso(struct mlx5e_txqsq *sq, struct sk_buff *skb,
- struct mlx5_wqe_eth_seg *eseg, unsigned int *num_bytes)
+mlx5e_tx_get_gso_ihs(struct mlx5e_txqsq *sq, struct sk_buff *skb)
{
+ struct mlx5e_sq_stats *stats = sq->stats;
u16 ihs;
- eseg->mss = cpu_to_be16(skb_shinfo(skb)->gso_size);
-
if (skb->encapsulation) {
ihs = skb_inner_transport_offset(skb) + inner_tcp_hdrlen(skb);
- sq->stats.tso_inner_packets++;
- sq->stats.tso_inner_bytes += skb->len - ihs;
+ stats->tso_inner_packets++;
+ stats->tso_inner_bytes += skb->len - ihs;
} else {
ihs = skb_transport_offset(skb) + tcp_hdrlen(skb);
- sq->stats.tso_packets++;
- sq->stats.tso_bytes += skb->len - ihs;
+ stats->tso_packets++;
+ stats->tso_bytes += skb->len - ihs;
}
- *num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
return ihs;
}
return -ENOMEM;
}
+static inline void mlx5e_fill_sq_frag_edge(struct mlx5e_txqsq *sq,
+ struct mlx5_wq_cyc *wq,
+ u16 pi, u16 frag_pi)
+{
+ struct mlx5e_tx_wqe_info *edge_wi, *wi = &sq->db.wqe_info[pi];
+ u8 nnops = mlx5_wq_cyc_get_frag_size(wq) - frag_pi;
+
+ edge_wi = wi + nnops;
+
+ /* fill sq frag edge with nops to avoid wqe wrapping two pages */
+ for (; wi < edge_wi; wi++) {
+ wi->skb = NULL;
+ wi->num_wqebbs = 1;
+ mlx5e_post_nop(wq, sq->sqn, &sq->pc);
+ }
+ sq->stats->nop += nnops;
+}
+
static inline void
mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
- u8 opcode, u16 ds_cnt, u32 num_bytes, u8 num_dma,
+ u8 opcode, u16 ds_cnt, u8 num_wqebbs, u32 num_bytes, u8 num_dma,
struct mlx5e_tx_wqe_info *wi, struct mlx5_wqe_ctrl_seg *cseg)
{
struct mlx5_wq_cyc *wq = &sq->wq;
- u16 pi;
wi->num_bytes = num_bytes;
wi->num_dma = num_dma;
- wi->num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS);
+ wi->num_wqebbs = num_wqebbs;
wi->skb = skb;
cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | opcode);
sq->pc += wi->num_wqebbs;
if (unlikely(!mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, MLX5E_SQ_STOP_ROOM))) {
netif_tx_stop_queue(sq->txq);
- sq->stats.stopped++;
+ sq->stats->stopped++;
}
if (!skb->xmit_more || netif_xmit_stopped(sq->txq))
mlx5e_notify_hw(wq, sq->pc, sq->uar_map, cseg);
-
- /* fill sq edge with nops to avoid wqe wrap around */
- while ((pi = (sq->pc & wq->sz_m1)) > sq->edge) {
- sq->db.wqe_info[pi].skb = NULL;
- mlx5e_post_nop(wq, sq->sqn, &sq->pc);
- sq->stats.nop++;
- }
}
+#define INL_HDR_START_SZ (sizeof(((struct mlx5_wqe_eth_seg *)NULL)->inline_hdr.start))
+
netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
struct mlx5e_tx_wqe *wqe, u16 pi)
{
- struct mlx5e_tx_wqe_info *wi = &sq->db.wqe_info[pi];
-
- struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
- struct mlx5_wqe_eth_seg *eseg = &wqe->eth;
+ struct mlx5_wq_cyc *wq = &sq->wq;
+ struct mlx5_wqe_ctrl_seg *cseg;
+ struct mlx5_wqe_eth_seg *eseg;
+ struct mlx5_wqe_data_seg *dseg;
+ struct mlx5e_tx_wqe_info *wi;
+ struct mlx5e_sq_stats *stats = sq->stats;
unsigned char *skb_data = skb->data;
unsigned int skb_len = skb->len;
- u8 opcode = MLX5_OPCODE_SEND;
- unsigned int num_bytes;
+ u16 ds_cnt, ds_cnt_inl = 0;
+ u16 headlen, ihs, frag_pi;
+ u8 num_wqebbs, opcode;
+ u32 num_bytes;
int num_dma;
- u16 headlen;
- u16 ds_cnt;
- u16 ihs;
-
- mlx5e_txwqe_build_eseg_csum(sq, skb, eseg);
+ __be16 mss;
+ /* Calc ihs and ds cnt, no writes to wqe yet */
+ ds_cnt = sizeof(*wqe) / MLX5_SEND_WQE_DS;
if (skb_is_gso(skb)) {
- opcode = MLX5_OPCODE_LSO;
- ihs = mlx5e_txwqe_build_eseg_gso(sq, skb, eseg, &num_bytes);
- sq->stats.packets += skb_shinfo(skb)->gso_segs;
+ opcode = MLX5_OPCODE_LSO;
+ mss = cpu_to_be16(skb_shinfo(skb)->gso_size);
+ ihs = mlx5e_tx_get_gso_ihs(sq, skb);
+ num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
+ stats->packets += skb_shinfo(skb)->gso_segs;
} else {
- ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
+ opcode = MLX5_OPCODE_SEND;
+ mss = 0;
+ ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
num_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
- sq->stats.packets++;
+ stats->packets++;
}
- sq->stats.bytes += num_bytes;
- sq->stats.xmit_more += skb->xmit_more;
- ds_cnt = sizeof(*wqe) / MLX5_SEND_WQE_DS;
+ stats->bytes += num_bytes;
+ stats->xmit_more += skb->xmit_more;
+
+ headlen = skb_len - ihs - skb->data_len;
+ ds_cnt += !!headlen;
+ ds_cnt += skb_shinfo(skb)->nr_frags;
+
+ if (ihs) {
+ ihs += !!skb_vlan_tag_present(skb) * VLAN_HLEN;
+
+ ds_cnt_inl = DIV_ROUND_UP(ihs - INL_HDR_START_SZ, MLX5_SEND_WQE_DS);
+ ds_cnt += ds_cnt_inl;
+ }
+
+ num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS);
+ frag_pi = mlx5_wq_cyc_ctr2fragix(wq, sq->pc);
+ if (unlikely(frag_pi + num_wqebbs > mlx5_wq_cyc_get_frag_size(wq))) {
+ mlx5e_fill_sq_frag_edge(sq, wq, pi, frag_pi);
+ mlx5e_sq_fetch_wqe(sq, &wqe, &pi);
+ }
+
+ /* fill wqe */
+ wi = &sq->db.wqe_info[pi];
+ cseg = &wqe->ctrl;
+ eseg = &wqe->eth;
+ dseg = wqe->data;
+
+ mlx5e_txwqe_build_eseg_csum(sq, skb, eseg);
+
+ eseg->mss = mss;
+
if (ihs) {
if (skb_vlan_tag_present(skb)) {
- mlx5e_insert_vlan(eseg->inline_hdr.start, skb, ihs, &skb_data, &skb_len);
- ihs += VLAN_HLEN;
- sq->stats.added_vlan_packets++;
+ mlx5e_insert_vlan(eseg->inline_hdr.start, skb,
+ ihs - VLAN_HLEN, &skb_data, &skb_len);
+ stats->added_vlan_packets++;
} else {
memcpy(eseg->inline_hdr.start, skb_data, ihs);
mlx5e_tx_skb_pull_inline(&skb_data, &skb_len, ihs);
}
eseg->inline_hdr.sz = cpu_to_be16(ihs);
- ds_cnt += DIV_ROUND_UP(ihs - sizeof(eseg->inline_hdr.start), MLX5_SEND_WQE_DS);
+ dseg += ds_cnt_inl;
} else if (skb_vlan_tag_present(skb)) {
eseg->insert.type = cpu_to_be16(MLX5_ETH_WQE_INSERT_VLAN);
if (skb->vlan_proto == cpu_to_be16(ETH_P_8021AD))
eseg->insert.type |= cpu_to_be16(MLX5_ETH_WQE_SVLAN);
eseg->insert.vlan_tci = cpu_to_be16(skb_vlan_tag_get(skb));
- sq->stats.added_vlan_packets++;
+ stats->added_vlan_packets++;
}
- headlen = skb_len - skb->data_len;
- num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb_data, headlen,
- (struct mlx5_wqe_data_seg *)cseg + ds_cnt);
+ num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb_data, headlen, dseg);
if (unlikely(num_dma < 0))
goto err_drop;
- mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt + num_dma,
- num_bytes, num_dma, wi, cseg);
+ mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt, num_wqebbs, num_bytes,
+ num_dma, wi, cseg);
return NETDEV_TX_OK;
err_drop:
- sq->stats.dropped++;
+ stats->dropped++;
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
sq = container_of(cq, struct mlx5e_txqsq, cq);
- if (unlikely(!MLX5E_TEST_BIT(sq->state, MLX5E_SQ_STATE_ENABLED)))
+ if (unlikely(!test_bit(MLX5E_SQ_STATE_ENABLED, &sq->state)))
return false;
cqe = mlx5_cqwq_get_cqe(&cq->wq);
queue_work(cq->channel->priv->wq,
&sq->recover.recover_work);
}
- sq->stats.cqe_err++;
+ sq->stats->cqe_err++;
}
do {
last_wqe = (sqcc == wqe_counter);
- ci = sqcc & sq->wq.sz_m1;
+ ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sqcc);
wi = &sq->db.wqe_info[ci];
skb = wi->skb;
MLX5E_SQ_STOP_ROOM) &&
!test_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state)) {
netif_tx_wake_queue(sq->txq);
- sq->stats.wake++;
+ sq->stats->wake++;
}
return (i == MLX5E_TX_CQ_POLL_BUDGET);
int i;
while (sq->cc != sq->pc) {
- ci = sq->cc & sq->wq.sz_m1;
+ ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->cc);
wi = &sq->db.wqe_info[ci];
skb = wi->skb;
}
#ifdef CONFIG_MLX5_CORE_IPOIB
-
-struct mlx5_wqe_eth_pad {
- u8 rsvd0[16];
-};
-
-struct mlx5i_tx_wqe {
- struct mlx5_wqe_ctrl_seg ctrl;
- struct mlx5_wqe_datagram_seg datagram;
- struct mlx5_wqe_eth_pad pad;
- struct mlx5_wqe_eth_seg eth;
-};
-
static inline void
mlx5i_txwqe_build_datagram(struct mlx5_av *av, u32 dqpn, u32 dqkey,
struct mlx5_wqe_datagram_seg *dseg)
netdev_tx_t mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
struct mlx5_av *av, u32 dqpn, u32 dqkey)
{
- struct mlx5_wq_cyc *wq = &sq->wq;
- u16 pi = sq->pc & wq->sz_m1;
- struct mlx5i_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);
- struct mlx5e_tx_wqe_info *wi = &sq->db.wqe_info[pi];
+ struct mlx5_wq_cyc *wq = &sq->wq;
+ struct mlx5i_tx_wqe *wqe;
- struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
- struct mlx5_wqe_datagram_seg *datagram = &wqe->datagram;
- struct mlx5_wqe_eth_seg *eseg = &wqe->eth;
+ struct mlx5_wqe_datagram_seg *datagram;
+ struct mlx5_wqe_ctrl_seg *cseg;
+ struct mlx5_wqe_eth_seg *eseg;
+ struct mlx5_wqe_data_seg *dseg;
+ struct mlx5e_tx_wqe_info *wi;
+ struct mlx5e_sq_stats *stats = sq->stats;
unsigned char *skb_data = skb->data;
unsigned int skb_len = skb->len;
- u8 opcode = MLX5_OPCODE_SEND;
- unsigned int num_bytes;
+ u16 headlen, ihs, pi, frag_pi;
+ u16 ds_cnt, ds_cnt_inl = 0;
+ u8 num_wqebbs, opcode;
+ u32 num_bytes;
int num_dma;
- u16 headlen;
- u16 ds_cnt;
- u16 ihs;
+ __be16 mss;
- memset(wqe, 0, sizeof(*wqe));
-
- mlx5i_txwqe_build_datagram(av, dqpn, dqkey, datagram);
-
- mlx5e_txwqe_build_eseg_csum(sq, skb, eseg);
+ mlx5i_sq_fetch_wqe(sq, &wqe, &pi);
+ /* Calc ihs and ds cnt, no writes to wqe yet */
+ ds_cnt = sizeof(*wqe) / MLX5_SEND_WQE_DS;
if (skb_is_gso(skb)) {
- opcode = MLX5_OPCODE_LSO;
- ihs = mlx5e_txwqe_build_eseg_gso(sq, skb, eseg, &num_bytes);
- sq->stats.packets += skb_shinfo(skb)->gso_segs;
+ opcode = MLX5_OPCODE_LSO;
+ mss = cpu_to_be16(skb_shinfo(skb)->gso_size);
+ ihs = mlx5e_tx_get_gso_ihs(sq, skb);
+ num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
+ stats->packets += skb_shinfo(skb)->gso_segs;
} else {
- ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
+ opcode = MLX5_OPCODE_SEND;
+ mss = 0;
+ ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
num_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
- sq->stats.packets++;
+ stats->packets++;
}
- sq->stats.bytes += num_bytes;
- sq->stats.xmit_more += skb->xmit_more;
+ stats->bytes += num_bytes;
+ stats->xmit_more += skb->xmit_more;
+
+ headlen = skb_len - ihs - skb->data_len;
+ ds_cnt += !!headlen;
+ ds_cnt += skb_shinfo(skb)->nr_frags;
+
+ if (ihs) {
+ ds_cnt_inl = DIV_ROUND_UP(ihs - INL_HDR_START_SZ, MLX5_SEND_WQE_DS);
+ ds_cnt += ds_cnt_inl;
+ }
+
+ num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS);
+ frag_pi = mlx5_wq_cyc_ctr2fragix(wq, sq->pc);
+ if (unlikely(frag_pi + num_wqebbs > mlx5_wq_cyc_get_frag_size(wq))) {
+ mlx5e_fill_sq_frag_edge(sq, wq, pi, frag_pi);
+ mlx5i_sq_fetch_wqe(sq, &wqe, &pi);
+ }
+
+ /* fill wqe */
+ wi = &sq->db.wqe_info[pi];
+ cseg = &wqe->ctrl;
+ datagram = &wqe->datagram;
+ eseg = &wqe->eth;
+ dseg = wqe->data;
+
+ mlx5i_txwqe_build_datagram(av, dqpn, dqkey, datagram);
+
+ mlx5e_txwqe_build_eseg_csum(sq, skb, eseg);
+
+ eseg->mss = mss;
- ds_cnt = sizeof(*wqe) / MLX5_SEND_WQE_DS;
if (ihs) {
memcpy(eseg->inline_hdr.start, skb_data, ihs);
- mlx5e_tx_skb_pull_inline(&skb_data, &skb_len, ihs);
eseg->inline_hdr.sz = cpu_to_be16(ihs);
- ds_cnt += DIV_ROUND_UP(ihs - sizeof(eseg->inline_hdr.start), MLX5_SEND_WQE_DS);
+ dseg += ds_cnt_inl;
}
- headlen = skb_len - skb->data_len;
- num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb_data, headlen,
- (struct mlx5_wqe_data_seg *)cseg + ds_cnt);
+ num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb_data, headlen, dseg);
if (unlikely(num_dma < 0))
goto err_drop;
- mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt + num_dma,
- num_bytes, num_dma, wi, cseg);
+ mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt, num_wqebbs, num_bytes,
+ num_dma, wi, cseg);
return NETDEV_TX_OK;
err_drop:
- sq->stats.dropped++;
+ stats->dropped++;
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
-
#endif
git.samba.org / sfrench / cifs-2.6.git / blobdiff