Merge tag 'mlx5-updates-2020-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2020-07-28

Misc and small update to mlx5 driver:

1) Aya adds PCIe relaxed ordering support for mlx5 netdev queues.
2) Eran Refactors pages data base to be per vf/function to speedup
   unload time.
3) Parav changes eswitch steering initialization to account for
   tota_vports rather than for only active vports and
   Link non uplink representors to PCI device, for uniform naming scheme.

4) Tariq, trivial RX code improvements and missing inidirect calls
   wrappers.

5) Small cleanup patches
====================

Signed-off-by: David S. Miller <[email protected]>

Author: davem330

drivers/net/ethernet/mellanox/mlx5/core/en.h

@@ -530,6 +530,8 @@ typedef struct sk_buff *
 typedef bool (*mlx5e_fp_post_rx_wqes)(struct mlx5e_rq *rq);
 typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16);
 
+int mlx5e_rq_set_handlers(struct mlx5e_rq *rq, struct mlx5e_params *params, bool xsk);
+
 enum mlx5e_rq_flag {
 	MLX5E_RQ_FLAG_XDP_XMIT,
 	MLX5E_RQ_FLAG_XDP_REDIRECT,
@@ -812,6 +814,13 @@ struct mlx5e_priv {
 	struct mlx5e_scratchpad    scratchpad;
 };
 
+struct mlx5e_rx_handlers {
+	mlx5e_fp_handle_rx_cqe handle_rx_cqe;
+	mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe;
+};
+
+extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_nic;
+
 struct mlx5e_profile {
 	int	(*init)(struct mlx5_core_dev *mdev,
 			struct net_device *netdev,
@@ -828,58 +837,17 @@ struct mlx5e_profile {
 	void	(*update_carrier)(struct mlx5e_priv *priv);
 	unsigned int (*stats_grps_num)(struct mlx5e_priv *priv);
 	mlx5e_stats_grp_t *stats_grps;
-	struct {
-		mlx5e_fp_handle_rx_cqe handle_rx_cqe;
-		mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe;
-	} rx_handlers;
+	const struct mlx5e_rx_handlers *rx_handlers;
 	int	max_tc;
 	u8	rq_groups;
 };
 
 void mlx5e_build_ptys2ethtool_map(void);
 
-u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
-		       struct net_device *sb_dev);
-netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
-void mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
-		   struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more);
-
-void mlx5e_trigger_irq(struct mlx5e_icosq *sq);
-void mlx5e_completion_event(struct mlx5_core_cq *mcq, struct mlx5_eqe *eqe);
-void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
-int mlx5e_napi_poll(struct napi_struct *napi, int budget);
-bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
-int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
-void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
-
 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev);
 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
 				struct mlx5e_params *params);
 
-void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info);
-void mlx5e_page_release_dynamic(struct mlx5e_rq *rq,
-				struct mlx5e_dma_info *dma_info,
-				bool recycle);
-void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
-void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
-bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
-int mlx5e_poll_ico_cq(struct mlx5e_cq *cq);
-bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq);
-void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix);
-void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix);
-struct sk_buff *
-mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
-				u16 cqe_bcnt, u32 head_offset, u32 page_idx);
-struct sk_buff *
-mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
-				   u16 cqe_bcnt, u32 head_offset, u32 page_idx);
-struct sk_buff *
-mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
-			  struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
-struct sk_buff *
-mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
-			     struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
-
 void mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats);
 void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s);
 
@@ -982,8 +950,6 @@ void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
 int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, int next_state);
 void mlx5e_activate_rq(struct mlx5e_rq *rq);
 void mlx5e_deactivate_rq(struct mlx5e_rq *rq);
-void mlx5e_free_rx_descs(struct mlx5e_rq *rq);
-void mlx5e_free_rx_in_progress_descs(struct mlx5e_rq *rq);
 void mlx5e_activate_icosq(struct mlx5e_icosq *icosq);
 void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq);
 
@@ -1008,6 +974,7 @@ int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev);
 void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev);
 int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb,
 		       bool enable_mc_lb);
+void mlx5e_mkey_set_relaxed_ordering(struct mlx5_core_dev *mdev, void *mkc);
 
 /* common netdev helpers */
 void mlx5e_create_q_counters(struct mlx5e_priv *priv);

drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h

@@ -5,6 +5,7 @@
 #define __MLX5_EN_TXRX_H___
 
 #include "en.h"
+#include <linux/indirect_call_wrapper.h>
 
 #define INL_HDR_START_SZ (sizeof(((struct mlx5_wqe_eth_seg *)NULL)->inline_hdr.start))
 
@@ -18,6 +19,33 @@ enum mlx5e_icosq_wqe_type {
 #endif
 };
 
+/* General */
+void mlx5e_trigger_irq(struct mlx5e_icosq *sq);
+void mlx5e_completion_event(struct mlx5_core_cq *mcq, struct mlx5_eqe *eqe);
+void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
+int mlx5e_napi_poll(struct napi_struct *napi, int budget);
+int mlx5e_poll_ico_cq(struct mlx5e_cq *cq);
+
+/* RX */
+void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info);
+void mlx5e_page_release_dynamic(struct mlx5e_rq *rq,
+				struct mlx5e_dma_info *dma_info,
+				bool recycle);
+INDIRECT_CALLABLE_DECLARE(bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq));
+INDIRECT_CALLABLE_DECLARE(bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq));
+int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
+void mlx5e_free_rx_descs(struct mlx5e_rq *rq);
+void mlx5e_free_rx_in_progress_descs(struct mlx5e_rq *rq);
+
+/* TX */
+u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
+		       struct net_device *sb_dev);
+netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
+void mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
+		   struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more);
+bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
+void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
+
 static inline bool
 mlx5e_wqc_has_room_for(struct mlx5_wq_cyc *wq, u16 cc, u16 pc, u16 n)
 {
@@ -360,7 +388,7 @@ mlx5e_set_eseg_swp(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg,
 	switch (swp_spec->tun_l4_proto) {
 	case IPPROTO_UDP:
 		eseg->swp_flags |= MLX5_ETH_WQE_SWP_INNER_L4_UDP;
-		/* fall through */
+		fallthrough;
 	case IPPROTO_TCP:
 		eseg->swp_inner_l4_offset = skb_inner_transport_offset(skb) / 2;
 		break;

drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c

@@ -34,7 +34,6 @@
 #include <net/xdp_sock_drv.h>
 #include "en/xdp.h"
 #include "en/params.h"
-#include <linux/indirect_call_wrapper.h>
 
 int mlx5e_xdp_max_mtu(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk)
 {
@@ -153,11 +152,11 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
 		return true;
 	default:
 		bpf_warn_invalid_xdp_action(act);
-		/* fall through */
+		fallthrough;
 	case XDP_ABORTED:
 xdp_abort:
 		trace_xdp_exception(rq->netdev, prog, act);
-		/* fall through */
+		fallthrough;
 	case XDP_DROP:
 		rq->stats->xdp_drop++;
 		return true;

drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c

@@ -3,6 +3,7 @@
 
 #include "setup.h"
 #include "en/params.h"
+#include "en/txrx.h"
 
 /* It matches XDP_UMEM_MIN_CHUNK_SIZE, but as this constant is private and may
  * change unexpectedly, and mlx5e has a minimum valid stride size for striding

drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c

@@ -6,7 +6,6 @@
 #include "en/xdp.h"
 #include "en/params.h"
 #include <net/xdp_sock_drv.h>
-#include <linux/indirect_call_wrapper.h>
 
 int mlx5e_xsk_wakeup(struct net_device *dev, u32 qid, u32 flags)
 {

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.h

@@ -47,7 +47,6 @@
 
 struct sk_buff *mlx5e_ipsec_handle_rx_skb(struct net_device *netdev,
 					  struct sk_buff *skb, u32 *cqe_bcnt);
-void mlx5e_ipsec_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
 
 void mlx5e_ipsec_inverse_table_init(void);
 bool mlx5e_ipsec_feature_check(struct sk_buff *skb, struct net_device *netdev,

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c

@@ -470,7 +470,7 @@ bool mlx5e_ktls_handle_tx_skb(struct tls_context *tls_ctx, struct mlx5e_txqsq *s
 			if (likely(!skb->decrypted))
 				goto out;
 			WARN_ON_ONCE(1);
-			/* fall-through */
+			fallthrough;
 		case MLX5E_KTLS_SYNC_FAIL:
 			goto err_out;
 		}

drivers/net/ethernet/mellanox/mlx5/core/en_common.c

@@ -60,6 +60,16 @@ void mlx5e_destroy_tir(struct mlx5_core_dev *mdev,
 	mutex_unlock(&mdev->mlx5e_res.td.list_lock);
 }
 
+void mlx5e_mkey_set_relaxed_ordering(struct mlx5_core_dev *mdev, void *mkc)
+{
+	bool ro_pci_enable = pcie_relaxed_ordering_enabled(mdev->pdev);
+	bool ro_write = MLX5_CAP_GEN(mdev, relaxed_ordering_write);
+	bool ro_read = MLX5_CAP_GEN(mdev, relaxed_ordering_read);
+
+	MLX5_SET(mkc, mkc, relaxed_ordering_read, ro_pci_enable && ro_read);
+	MLX5_SET(mkc, mkc, relaxed_ordering_write, ro_pci_enable && ro_write);
+}
+
 static int mlx5e_create_mkey(struct mlx5_core_dev *mdev, u32 pdn,
 			     struct mlx5_core_mkey *mkey)
 {
@@ -76,7 +86,7 @@ static int mlx5e_create_mkey(struct mlx5_core_dev *mdev, u32 pdn,
 	MLX5_SET(mkc, mkc, access_mode_1_0, MLX5_MKC_ACCESS_MODE_PA);
 	MLX5_SET(mkc, mkc, lw, 1);
 	MLX5_SET(mkc, mkc, lr, 1);
-
+	mlx5e_mkey_set_relaxed_ordering(mdev, mkc);
 	MLX5_SET(mkc, mkc, pd, pdn);
 	MLX5_SET(mkc, mkc, length64, 1);
 	MLX5_SET(mkc, mkc, qpn, 0xffffff);

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

@@ -243,7 +243,7 @@ int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
 		return MLX5E_NUM_PFLAGS;
 	case ETH_SS_TEST:
 		return mlx5e_self_test_num(priv);
-	/* fallthrough */
+		fallthrough;
 	default:
 		return -EOPNOTSUPP;
 	}

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -45,7 +45,6 @@
 #include "en_tc.h"
 #include "en_rep.h"
 #include "en_accel/ipsec.h"
-#include "en_accel/ipsec_rxtx.h"
 #include "en_accel/en_accel.h"
 #include "en_accel/tls.h"
 #include "accel/ipsec.h"
@@ -65,7 +64,6 @@
 #include "en/hv_vhca_stats.h"
 #include "en/devlink.h"
 #include "lib/mlx5.h"
-#include "fpga/ipsec.h"
 
 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
 {
@@ -276,7 +274,7 @@ static int mlx5e_create_umr_mkey(struct mlx5_core_dev *mdev,
 	MLX5_SET(mkc, mkc, lw, 1);
 	MLX5_SET(mkc, mkc, lr, 1);
 	MLX5_SET(mkc, mkc, access_mode_1_0, MLX5_MKC_ACCESS_MODE_MTT);
-
+	mlx5e_mkey_set_relaxed_ordering(mdev, mkc);
 	MLX5_SET(mkc, mkc, qpn, 0xffffff);
 	MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.pdn);
 	MLX5_SET64(mkc, mkc, len, npages << page_shift);
@@ -428,29 +426,6 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 		pool_size = MLX5_MPWRQ_PAGES_PER_WQE <<
 			mlx5e_mpwqe_get_log_rq_size(params, xsk);
 
-		rq->post_wqes = mlx5e_post_rx_mpwqes;
-		rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe;
-
-		rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe_mpwqe;
-#ifdef CONFIG_MLX5_EN_IPSEC
-		if (MLX5_IPSEC_DEV(mdev)) {
-			err = -EINVAL;
-			netdev_err(c->netdev, "MPWQE RQ with IPSec offload not supported\n");
-			goto err_rq_wq_destroy;
-		}
-#endif
-		if (!rq->handle_rx_cqe) {
-			err = -EINVAL;
-			netdev_err(c->netdev, "RX handler of MPWQE RQ is not set, err %d\n", err);
-			goto err_rq_wq_destroy;
-		}
-
-		rq->mpwqe.skb_from_cqe_mpwrq = xsk ?
-			mlx5e_xsk_skb_from_cqe_mpwrq_linear :
-			mlx5e_rx_mpwqe_is_linear_skb(mdev, params, NULL) ?
-				mlx5e_skb_from_cqe_mpwrq_linear :
-				mlx5e_skb_from_cqe_mpwrq_nonlinear;
-
 		rq->mpwqe.log_stride_sz = mlx5e_mpwqe_get_log_stride_size(mdev, params, xsk);
 		rq->mpwqe.num_strides =
 			BIT(mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk));
@@ -492,30 +467,13 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 		if (err)
 			goto err_free;
 
-		rq->post_wqes = mlx5e_post_rx_wqes;
-		rq->dealloc_wqe = mlx5e_dealloc_rx_wqe;
-
-#ifdef CONFIG_MLX5_EN_IPSEC
-		if ((mlx5_fpga_ipsec_device_caps(mdev) & MLX5_ACCEL_IPSEC_CAP_DEVICE) &&
-		    c->priv->ipsec)
-			rq->handle_rx_cqe = mlx5e_ipsec_handle_rx_cqe;
-		else
-#endif
-			rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe;
-		if (!rq->handle_rx_cqe) {
-			err = -EINVAL;
-			netdev_err(c->netdev, "RX handler of RQ is not set, err %d\n", err);
-			goto err_free;
-		}
-
-		rq->wqe.skb_from_cqe = xsk ?
-			mlx5e_xsk_skb_from_cqe_linear :
-			mlx5e_rx_is_linear_skb(params, NULL) ?
-				mlx5e_skb_from_cqe_linear :
-				mlx5e_skb_from_cqe_nonlinear;
 		rq->mkey_be = c->mkey_be;
 	}
 
+	err = mlx5e_rq_set_handlers(rq, params, xsk);
+	if (err)
+		goto err_free;
+
 	if (xsk) {
 		err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
 						 MEM_TYPE_XSK_BUFF_POOL, NULL);
@@ -5288,8 +5246,7 @@ static const struct mlx5e_profile mlx5e_nic_profile = {
 	.update_rx	   = mlx5e_update_nic_rx,
 	.update_stats	   = mlx5e_update_ndo_stats,
 	.update_carrier	   = mlx5e_update_carrier,
-	.rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe,
-	.rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
+	.rx_handlers       = &mlx5e_rx_handlers_nic,
 	.max_tc		   = MLX5E_MAX_NUM_TC,
 	.rq_groups	   = MLX5E_NUM_RQ_GROUPS(XSK),
 	.stats_grps	   = mlx5e_nic_stats_grps,

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -42,6 +42,7 @@
 #include "esw/chains.h"
 #include "en.h"
 #include "en_rep.h"
+#include "en/txrx.h"
 #include "en_tc.h"
 #include "en/rep/tc.h"
 #include "en/rep/neigh.h"
@@ -699,8 +700,8 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev)
 	struct mlx5_eswitch_rep *rep = rpriv->rep;
 	struct mlx5_core_dev *mdev = priv->mdev;
 
+	SET_NETDEV_DEV(netdev, mdev->device);
 	if (rep->vport == MLX5_VPORT_UPLINK) {
-		SET_NETDEV_DEV(netdev, mdev->device);
 		netdev->netdev_ops = &mlx5e_netdev_ops_uplink_rep;
 		/* we want a persistent mac for the uplink rep */
 		mlx5_query_mac_address(mdev, netdev->dev_addr);
@@ -1143,8 +1144,7 @@ static const struct mlx5e_profile mlx5e_rep_profile = {
 	.enable		        = mlx5e_rep_enable,
 	.update_rx		= mlx5e_update_rep_rx,
 	.update_stats           = mlx5e_update_ndo_stats,
-	.rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe_rep,
-	.rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq_rep,
+	.rx_handlers            = &mlx5e_rx_handlers_rep,
 	.max_tc			= 1,
 	.rq_groups		= MLX5E_NUM_RQ_GROUPS(REGULAR),
 	.stats_grps		= mlx5e_rep_stats_grps,
@@ -1163,8 +1163,7 @@ static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
 	.update_rx		= mlx5e_update_rep_rx,
 	.update_stats           = mlx5e_update_ndo_stats,
 	.update_carrier	        = mlx5e_update_carrier,
-	.rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe_rep,
-	.rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq_rep,
+	.rx_handlers            = &mlx5e_rx_handlers_rep,
 	.max_tc			= MLX5E_MAX_NUM_TC,
 	.rq_groups		= MLX5E_NUM_RQ_GROUPS(REGULAR),
 	.stats_grps		= mlx5e_ul_rep_stats_grps,

drivers/net/ethernet/mellanox/mlx5/core/en_rep.h

@@ -41,6 +41,8 @@
 #include "lib/port_tun.h"
 
 #ifdef CONFIG_MLX5_ESWITCH
+extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_rep;
+
 struct mlx5e_neigh_update_table {
 	struct rhashtable       neigh_ht;
 	/* Save the neigh hash entries in a list in addition to the hash table
@@ -223,10 +225,6 @@ bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv);
 int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv);
 void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv);
 
-void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
-void mlx5e_handle_rx_cqe_mpwrq_rep(struct mlx5e_rq *rq,
-				   struct mlx5_cqe64 *cqe);
-
 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
 
 bool mlx5e_eswitch_vf_rep(struct net_device *netdev);