Message-ID: <20200706153821.786-7-alobakin@marvell.com>
Date:   Mon, 6 Jul 2020 18:38:18 +0300
From:   Alexander Lobakin <alobakin@...vell.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Alexander Lobakin <alobakin@...vell.com>,
        Igor Russkikh <irusskikh@...vell.com>,
        Michal Kalderon <michal.kalderon@...vell.com>,
        "Ariel Elior" <aelior@...vell.com>,
        Denis Bolotin <denis.bolotin@...vell.com>,
        <GR-everest-linux-l2@...vell.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next 6/9] net: qed: use ptr shortcuts to dedup field accessing in some parts

Use intermediate pointers instead of multiple dereferencing to
simplify and beautify parts of code that will be addressed in
the next commit.

Signed-off-by: Alexander Lobakin <alobakin@...vell.com>
Signed-off-by: Igor Russkikh <irusskikh@...vell.com>
---
 drivers/net/ethernet/qlogic/qed/qed_cxt.c     |  5 +-
 drivers/net/ethernet/qlogic/qed/qed_iwarp.c   | 18 +++---
 drivers/net/ethernet/qlogic/qed/qed_l2.c      | 61 ++++++++++---------
 drivers/net/ethernet/qlogic/qed/qed_roce.c    | 24 +++-----
 .../net/ethernet/qlogic/qed/qed_sp_commands.c | 24 ++++----
 5 files changed, 68 insertions(+), 64 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index e3fe982532d5..3a62358b9749 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -2170,6 +2170,7 @@ qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
 			  enum qed_cxt_elem_type elem_type, u32 iid)
 {
 	u32 reg_offset, shadow_line, elem_size, hw_p_size, elems_per_p, line;
+	struct tdif_task_context *tdif_context;
 	struct qed_ilt_client_cfg *p_cli;
 	struct qed_ilt_cli_blk *p_blk;
 	struct qed_ptt *p_ptt;
@@ -2252,7 +2253,9 @@ qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
 
 		for (elem_i = 0; elem_i < elems_per_p; elem_i++) {
 			elem = (union type1_task_context *)elem_start;
-			SET_FIELD(elem->roce_ctx.tdif_context.flags1,
+			tdif_context = &elem->roce_ctx.tdif_context;
+
+			SET_FIELD(tdif_context->flags1,
 				  TDIF_TASK_CONTEXT_REF_TAG_MASK, 0xf);
 			elem_start += TYPE1_TASK_CXT_SIZE(p_hwfn);
 		}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index 6f2cd5a18e5f..55e73a842507 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -808,6 +808,7 @@ static int
 qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
 {
 	struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod;
+	struct mpa_outgoing_params *common;
 	struct qed_iwarp_info *iwarp_info;
 	struct qed_sp_init_data init_data;
 	dma_addr_t async_output_phys;
@@ -840,16 +841,17 @@ qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
 		return rc;
 
 	p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload;
+	common = &p_mpa_ramrod->common;
+
 	out_pdata_phys = ep->ep_buffer_phys +
 			 offsetof(struct qed_iwarp_ep_memory, out_pdata);
-	DMA_REGPAIR_LE(p_mpa_ramrod->common.outgoing_ulp_buffer.addr,
-		       out_pdata_phys);
-	p_mpa_ramrod->common.outgoing_ulp_buffer.len =
-	    ep->cm_info.private_data_len;
-	p_mpa_ramrod->common.crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed;
+	DMA_REGPAIR_LE(common->outgoing_ulp_buffer.addr, out_pdata_phys);
+
+	common->outgoing_ulp_buffer.len = ep->cm_info.private_data_len;
+	common->crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed;
 
-	p_mpa_ramrod->common.out_rq.ord = ep->cm_info.ord;
-	p_mpa_ramrod->common.out_rq.ird = ep->cm_info.ird;
+	common->out_rq.ord = ep->cm_info.ord;
+	common->out_rq.ird = ep->cm_info.ird;
 
 	p_mpa_ramrod->tcp_cid = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid;
 
@@ -873,7 +875,7 @@ qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
 		p_mpa_ramrod->stats_counter_id =
 		    RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + qp->stats_queue;
 	} else {
-		p_mpa_ramrod->common.reject = 1;
+		common->reject = 1;
 	}
 
 	iwarp_info = &p_hwfn->p_rdma_info->iwarp;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index bf02748f5185..41afd15f4991 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -342,6 +342,7 @@ int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
 			   struct qed_sp_vport_start_params *p_params)
 {
 	struct vport_start_ramrod_data *p_ramrod = NULL;
+	struct eth_vport_tpa_param *tpa_param;
 	struct qed_spq_entry *p_ent =  NULL;
 	struct qed_sp_init_data init_data;
 	u8 abs_vport_id = 0;
@@ -378,21 +379,21 @@ int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
 	p_ramrod->rx_mode.state = cpu_to_le16(rx_mode);
 
 	/* TPA related fields */
-	memset(&p_ramrod->tpa_param, 0, sizeof(struct eth_vport_tpa_param));
+	tpa_param = &p_ramrod->tpa_param;
+	memset(tpa_param, 0, sizeof(*tpa_param));
 
-	p_ramrod->tpa_param.max_buff_num = p_params->max_buffers_per_cqe;
+	tpa_param->max_buff_num = p_params->max_buffers_per_cqe;
 
 	switch (p_params->tpa_mode) {
 	case QED_TPA_MODE_GRO:
-		p_ramrod->tpa_param.tpa_max_aggs_num = ETH_TPA_MAX_AGGS_NUM;
-		p_ramrod->tpa_param.tpa_max_size = (u16)-1;
-		p_ramrod->tpa_param.tpa_min_size_to_cont = p_params->mtu / 2;
-		p_ramrod->tpa_param.tpa_min_size_to_start = p_params->mtu / 2;
-		p_ramrod->tpa_param.tpa_ipv4_en_flg = 1;
-		p_ramrod->tpa_param.tpa_ipv6_en_flg = 1;
-		p_ramrod->tpa_param.tpa_pkt_split_flg = 1;
-		p_ramrod->tpa_param.tpa_gro_consistent_flg = 1;
-		break;
+		tpa_param->tpa_max_aggs_num = ETH_TPA_MAX_AGGS_NUM;
+		tpa_param->tpa_max_size = (u16)-1;
+		tpa_param->tpa_min_size_to_cont = p_params->mtu / 2;
+		tpa_param->tpa_min_size_to_start = p_params->mtu / 2;
+		tpa_param->tpa_ipv4_en_flg = 1;
+		tpa_param->tpa_ipv6_en_flg = 1;
+		tpa_param->tpa_pkt_split_flg = 1;
+		tpa_param->tpa_gro_consistent_flg = 1;
 	default:
 		break;
 	}
@@ -601,33 +602,33 @@ qed_sp_update_accept_mode(struct qed_hwfn *p_hwfn,
 static void
 qed_sp_vport_update_sge_tpa(struct qed_hwfn *p_hwfn,
 			    struct vport_update_ramrod_data *p_ramrod,
-			    struct qed_sge_tpa_params *p_params)
+			    const struct qed_sge_tpa_params *param)
 {
-	struct eth_vport_tpa_param *p_tpa;
+	struct eth_vport_tpa_param *tpa;
 
-	if (!p_params) {
+	if (!param) {
 		p_ramrod->common.update_tpa_param_flg = 0;
 		p_ramrod->common.update_tpa_en_flg = 0;
 		p_ramrod->common.update_tpa_param_flg = 0;
 		return;
 	}
 
-	p_ramrod->common.update_tpa_en_flg = p_params->update_tpa_en_flg;
-	p_tpa = &p_ramrod->tpa_param;
-	p_tpa->tpa_ipv4_en_flg = p_params->tpa_ipv4_en_flg;
-	p_tpa->tpa_ipv6_en_flg = p_params->tpa_ipv6_en_flg;
-	p_tpa->tpa_ipv4_tunn_en_flg = p_params->tpa_ipv4_tunn_en_flg;
-	p_tpa->tpa_ipv6_tunn_en_flg = p_params->tpa_ipv6_tunn_en_flg;
-
-	p_ramrod->common.update_tpa_param_flg = p_params->update_tpa_param_flg;
-	p_tpa->max_buff_num = p_params->max_buffers_per_cqe;
-	p_tpa->tpa_pkt_split_flg = p_params->tpa_pkt_split_flg;
-	p_tpa->tpa_hdr_data_split_flg = p_params->tpa_hdr_data_split_flg;
-	p_tpa->tpa_gro_consistent_flg = p_params->tpa_gro_consistent_flg;
-	p_tpa->tpa_max_aggs_num = p_params->tpa_max_aggs_num;
-	p_tpa->tpa_max_size = p_params->tpa_max_size;
-	p_tpa->tpa_min_size_to_start = p_params->tpa_min_size_to_start;
-	p_tpa->tpa_min_size_to_cont = p_params->tpa_min_size_to_cont;
+	p_ramrod->common.update_tpa_en_flg = param->update_tpa_en_flg;
+	tpa = &p_ramrod->tpa_param;
+	tpa->tpa_ipv4_en_flg = param->tpa_ipv4_en_flg;
+	tpa->tpa_ipv6_en_flg = param->tpa_ipv6_en_flg;
+	tpa->tpa_ipv4_tunn_en_flg = param->tpa_ipv4_tunn_en_flg;
+	tpa->tpa_ipv6_tunn_en_flg = param->tpa_ipv6_tunn_en_flg;
+
+	p_ramrod->common.update_tpa_param_flg = param->update_tpa_param_flg;
+	tpa->max_buff_num = param->max_buffers_per_cqe;
+	tpa->tpa_pkt_split_flg = param->tpa_pkt_split_flg;
+	tpa->tpa_hdr_data_split_flg = param->tpa_hdr_data_split_flg;
+	tpa->tpa_gro_consistent_flg = param->tpa_gro_consistent_flg;
+	tpa->tpa_max_aggs_num = param->tpa_max_aggs_num;
+	tpa->tpa_max_size = param->tpa_max_size;
+	tpa->tpa_min_size_to_start = param->tpa_min_size_to_start;
+	tpa->tpa_min_size_to_cont = param->tpa_min_size_to_cont;
 }
 
 static void
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 871282187268..5433e43a1930 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -42,29 +42,25 @@ static int qed_roce_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code,
 				u8 fw_return_code)
 {
 	struct qed_rdma_events events = p_hwfn->p_rdma_info->events;
+	union rdma_eqe_data *rdata = &data->rdma_data;
 
 	if (fw_event_code == ROCE_ASYNC_EVENT_DESTROY_QP_DONE) {
-		u16 icid =
-		    (u16)le32_to_cpu(data->rdma_data.rdma_destroy_qp_data.cid);
+		u16 icid = (u16)le32_to_cpu(rdata->rdma_destroy_qp_data.cid);
 
 		/* icid release in this async event can occur only if the icid
 		 * was offloaded to the FW. In case it wasn't offloaded this is
 		 * handled in qed_roce_sp_destroy_qp.
 		 */
 		qed_roce_free_real_icid(p_hwfn, icid);
-	} else {
-		if (fw_event_code == ROCE_ASYNC_EVENT_SRQ_EMPTY ||
-		    fw_event_code == ROCE_ASYNC_EVENT_SRQ_LIMIT) {
-			u16 srq_id = (u16)data->rdma_data.async_handle.lo;
-
-			events.affiliated_event(events.context, fw_event_code,
-						&srq_id);
-		} else {
-			union rdma_eqe_data rdata = data->rdma_data;
+	} else if (fw_event_code == ROCE_ASYNC_EVENT_SRQ_EMPTY ||
+		   fw_event_code == ROCE_ASYNC_EVENT_SRQ_LIMIT) {
+		u16 srq_id = (u16)rdata->async_handle.lo;
 
-			events.affiliated_event(events.context, fw_event_code,
-						(void *)&rdata.async_handle);
-		}
+		events.affiliated_event(events.context, fw_event_code,
+					&srq_id);
+	} else {
+		events.affiliated_event(events.context, fw_event_code,
+					(void *)&rdata->async_handle);
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
index 745d76d13732..71ab57bca7c9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
@@ -300,6 +300,7 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
 		    struct qed_tunnel_info *p_tunn,
 		    bool allow_npar_tx_switch)
 {
+	struct outer_tag_config_struct *outer_tag_config;
 	struct pf_start_ramrod_data *p_ramrod = NULL;
 	u16 sb = qed_int_get_sp_sb_id(p_hwfn);
 	u8 sb_index = p_hwfn->p_eq->eq_sb_index;
@@ -336,29 +337,30 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
 	else
 		p_ramrod->mf_mode = MF_NPAR;
 
-	p_ramrod->outer_tag_config.outer_tag.tci =
-				cpu_to_le16(p_hwfn->hw_info.ovlan);
+	outer_tag_config = &p_ramrod->outer_tag_config;
+	outer_tag_config->outer_tag.tci = cpu_to_le16(p_hwfn->hw_info.ovlan);
+
 	if (test_bit(QED_MF_8021Q_TAGGING, &p_hwfn->cdev->mf_bits)) {
-		p_ramrod->outer_tag_config.outer_tag.tpid = ETH_P_8021Q;
+		outer_tag_config->outer_tag.tpid = ETH_P_8021Q;
 	} else if (test_bit(QED_MF_8021AD_TAGGING, &p_hwfn->cdev->mf_bits)) {
-		p_ramrod->outer_tag_config.outer_tag.tpid = ETH_P_8021AD;
-		p_ramrod->outer_tag_config.enable_stag_pri_change = 1;
+		outer_tag_config->outer_tag.tpid = ETH_P_8021AD;
+		outer_tag_config->enable_stag_pri_change = 1;
 	}
 
-	p_ramrod->outer_tag_config.pri_map_valid = 1;
+	outer_tag_config->pri_map_valid = 1;
 	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
-		p_ramrod->outer_tag_config.inner_to_outer_pri_map[i] = i;
+		outer_tag_config->inner_to_outer_pri_map[i] = i;
 
 	/* enable_stag_pri_change should be set if port is in BD mode or,
 	 * UFP with Host Control mode.
 	 */
 	if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits)) {
 		if (p_hwfn->ufp_info.pri_type == QED_UFP_PRI_OS)
-			p_ramrod->outer_tag_config.enable_stag_pri_change = 1;
+			outer_tag_config->enable_stag_pri_change = 1;
 		else
-			p_ramrod->outer_tag_config.enable_stag_pri_change = 0;
+			outer_tag_config->enable_stag_pri_change = 0;
 
-		p_ramrod->outer_tag_config.outer_tag.tci |=
+		outer_tag_config->outer_tag.tci |=
 		    cpu_to_le16(((u16)p_hwfn->ufp_info.tc << 13));
 	}
 
@@ -406,7 +408,7 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
 
 	DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
 		   "Setting event_ring_sb [id %04x index %02x], outer_tag.tci [%d]\n",
-		   sb, sb_index, p_ramrod->outer_tag_config.outer_tag.tci);
+		   sb, sb_index, outer_tag_config->outer_tag.tci);
 
 	rc = qed_spq_post(p_hwfn, p_ent, NULL);
 
-- 
2.25.1

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