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path: root/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_tx.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_tx.c117
1 files changed, 36 insertions, 81 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index 195a7d903cec..600e92cb629a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -35,55 +35,12 @@
#include <net/geneve.h>
#include <net/dsfield.h>
#include "en.h"
+#include "en/txrx.h"
#include "ipoib/ipoib.h"
#include "en_accel/en_accel.h"
+#include "en_accel/ktls.h"
#include "lib/clock.h"
-#define MLX5E_SQ_NOPS_ROOM MLX5_SEND_WQE_MAX_WQEBBS
-
-#ifndef CONFIG_MLX5_EN_TLS
-#define MLX5E_SQ_STOP_ROOM (MLX5_SEND_WQE_MAX_WQEBBS +\
- MLX5E_SQ_NOPS_ROOM)
-#else
-/* TLS offload requires MLX5E_SQ_STOP_ROOM to have
- * enough room for a resync SKB, a normal SKB and a NOP
- */
-#define MLX5E_SQ_STOP_ROOM (2 * MLX5_SEND_WQE_MAX_WQEBBS +\
- MLX5E_SQ_NOPS_ROOM)
-#endif
-
-static inline void mlx5e_tx_dma_unmap(struct device *pdev,
- struct mlx5e_sq_dma *dma)
-{
- switch (dma->type) {
- case MLX5E_DMA_MAP_SINGLE:
- dma_unmap_single(pdev, dma->addr, dma->size, DMA_TO_DEVICE);
- break;
- case MLX5E_DMA_MAP_PAGE:
- dma_unmap_page(pdev, dma->addr, dma->size, DMA_TO_DEVICE);
- break;
- default:
- WARN_ONCE(true, "mlx5e_tx_dma_unmap unknown DMA type!\n");
- }
-}
-
-static inline struct mlx5e_sq_dma *mlx5e_dma_get(struct mlx5e_txqsq *sq, u32 i)
-{
- return &sq->db.dma_fifo[i & sq->dma_fifo_mask];
-}
-
-static inline void mlx5e_dma_push(struct mlx5e_txqsq *sq,
- dma_addr_t addr,
- u32 size,
- enum mlx5e_dma_map_type map_type)
-{
- struct mlx5e_sq_dma *dma = mlx5e_dma_get(sq, sq->dma_fifo_pc++);
-
- dma->addr = addr;
- dma->size = size;
- dma->type = map_type;
-}
-
static void mlx5e_dma_unmap_wqe_err(struct mlx5e_txqsq *sq, u8 num_dma)
{
int i;
@@ -113,13 +70,13 @@ static inline int mlx5e_get_dscp_up(struct mlx5e_priv *priv, struct sk_buff *skb
u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
struct net_device *sb_dev)
{
- int channel_ix = netdev_pick_tx(dev, skb, NULL);
+ int txq_ix = netdev_pick_tx(dev, skb, NULL);
struct mlx5e_priv *priv = netdev_priv(dev);
u16 num_channels;
int up = 0;
if (!netdev_get_num_tc(dev))
- return channel_ix;
+ return txq_ix;
#ifdef CONFIG_MLX5_CORE_EN_DCB
if (priv->dcbx_dp.trust_state == MLX5_QPTS_TRUST_DSCP)
@@ -129,14 +86,14 @@ u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
if (skb_vlan_tag_present(skb))
up = skb_vlan_tag_get_prio(skb);
- /* channel_ix can be larger than num_channels since
+ /* txq_ix can be larger than num_channels since
* dev->num_real_tx_queues = num_channels * num_tc
*/
num_channels = priv->channels.params.num_channels;
- if (channel_ix >= num_channels)
- channel_ix = reciprocal_scale(channel_ix, num_channels);
+ if (txq_ix >= num_channels)
+ txq_ix = priv->txq2sq[txq_ix]->ch_ix;
- return priv->channel_tc2txq[channel_ix][up];
+ return priv->channel_tc2txq[txq_ix][up];
}
static inline int mlx5e_skb_l2_header_offset(struct sk_buff *skb)
@@ -277,23 +234,6 @@ dma_unmap_wqe_err:
return -ENOMEM;
}
-static inline void mlx5e_fill_sq_frag_edge(struct mlx5e_txqsq *sq,
- struct mlx5_wq_cyc *wq,
- u16 pi, u16 nnops)
-{
- struct mlx5e_tx_wqe_info *edge_wi, *wi = &sq->db.wqe_info[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, u8 num_wqebbs, u32 num_bytes, u8 num_dma,
@@ -301,6 +241,7 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
bool xmit_more)
{
struct mlx5_wq_cyc *wq = &sq->wq;
+ bool send_doorbell;
wi->num_bytes = num_bytes;
wi->num_dma = num_dma;
@@ -310,23 +251,21 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | opcode);
cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt);
- netdev_tx_sent_queue(sq->txq, num_bytes);
-
if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
sq->pc += wi->num_wqebbs;
- if (unlikely(!mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, MLX5E_SQ_STOP_ROOM))) {
+ if (unlikely(!mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, sq->stop_room))) {
netif_tx_stop_queue(sq->txq);
sq->stats->stopped++;
}
- if (!xmit_more || netif_xmit_stopped(sq->txq))
+ send_doorbell = __netdev_tx_sent_queue(sq->txq, num_bytes,
+ xmit_more);
+ if (send_doorbell)
mlx5e_notify_hw(wq, sq->pc, sq->uar_map, cseg);
}
-#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, bool xmit_more)
{
@@ -353,9 +292,12 @@ netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
stats->packets += skb_shinfo(skb)->gso_segs;
} else {
+ u8 mode = mlx5e_transport_inline_tx_wqe(wqe) ?
+ MLX5_INLINE_MODE_TCP_UDP : sq->min_inline_mode;
+
opcode = MLX5_OPCODE_SEND;
mss = 0;
- ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
+ ihs = mlx5e_calc_min_inline(mode, skb);
num_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
stats->packets++;
}
@@ -380,11 +322,17 @@ netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
#ifdef CONFIG_MLX5_EN_IPSEC
struct mlx5_wqe_eth_seg cur_eth = wqe->eth;
#endif
+#ifdef CONFIG_MLX5_EN_TLS
+ struct mlx5_wqe_ctrl_seg cur_ctrl = wqe->ctrl;
+#endif
mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
- mlx5e_sq_fetch_wqe(sq, &wqe, &pi);
+ wqe = mlx5e_sq_fetch_wqe(sq, sizeof(*wqe), &pi);
#ifdef CONFIG_MLX5_EN_IPSEC
wqe->eth = cur_eth;
#endif
+#ifdef CONFIG_MLX5_EN_TLS
+ wqe->ctrl = cur_ctrl;
+#endif
}
/* fill wqe */
@@ -443,7 +391,7 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
u16 pi;
sq = priv->txq2sq[skb_get_queue_mapping(skb)];
- mlx5e_sq_fetch_wqe(sq, &wqe, &pi);
+ wqe = mlx5e_sq_fetch_wqe(sq, sizeof(*wqe), &pi);
/* might send skbs and update wqe and pi */
skb = mlx5e_accel_handle_tx(skb, sq, dev, &wqe, &pi);
@@ -531,8 +479,16 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
wi = &sq->db.wqe_info[ci];
skb = wi->skb;
- if (unlikely(!skb)) { /* nop */
- sqcc++;
+ if (unlikely(!skb)) {
+#ifdef CONFIG_MLX5_EN_TLS
+ if (wi->resync_dump_frag) {
+ struct mlx5e_sq_dma *dma =
+ mlx5e_dma_get(sq, dma_fifo_cc++);
+
+ mlx5e_ktls_tx_handle_resync_dump_comp(sq, wi, dma);
+ }
+#endif
+ sqcc += wi->num_wqebbs;
continue;
}
@@ -574,8 +530,7 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
netdev_tx_completed_queue(sq->txq, npkts, nbytes);
if (netif_tx_queue_stopped(sq->txq) &&
- mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc,
- MLX5E_SQ_STOP_ROOM) &&
+ mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc, sq->stop_room) &&
!test_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state)) {
netif_tx_wake_queue(sq->txq);
stats->wake++;
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