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From: Michael Chan <michael.chan@broadcom.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org
Subject: [PATCH net-next 07/15] bnxt_en: Initialize context memory to the value specified by firmware.
Date: Sat, 23 Nov 2019 03:26:02 -0500	[thread overview]
Message-ID: <1574497570-22102-8-git-send-email-michael.chan@broadcom.com> (raw)
In-Reply-To: <1574497570-22102-1-git-send-email-michael.chan@broadcom.com>

Some chips that need host context memory as a backing store requires
the memory to be initialized to a non-zero value.  Query the
value from firmware and initialize the context memory accordingly.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 26 +++++++++++++++++---------
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |  2 ++
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 6a12ab5..0e384c5 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -2688,6 +2688,9 @@ static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
 		if (!rmem->pg_arr[i])
 			return -ENOMEM;
 
+		if (rmem->init_val)
+			memset(rmem->pg_arr[i], rmem->init_val,
+			       rmem->page_size);
 		if (rmem->nr_pages > 1 || rmem->depth > 0) {
 			if (i == rmem->nr_pages - 2 &&
 			    (rmem->flags & BNXT_RMEM_RING_PTE_FLAG))
@@ -6487,6 +6490,7 @@ static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp)
 			le16_to_cpu(resp->mrav_num_entries_units);
 		ctx->tim_entry_size = le16_to_cpu(resp->tim_entry_size);
 		ctx->tim_max_entries = le32_to_cpu(resp->tim_max_entries);
+		ctx->ctx_kind_initializer = resp->ctx_kind_initializer;
 	} else {
 		rc = 0;
 	}
@@ -6641,7 +6645,7 @@ static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp,
 
 static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp,
 				  struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size,
-				  u8 depth)
+				  u8 depth, bool use_init_val)
 {
 	struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
 	int rc;
@@ -6679,6 +6683,8 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp,
 			rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i];
 			rmem->depth = 1;
 			rmem->nr_pages = MAX_CTX_PAGES;
+			if (use_init_val)
+				rmem->init_val = bp->ctx->ctx_kind_initializer;
 			if (i == (nr_tbls - 1)) {
 				int rem = ctx_pg->nr_pages % MAX_CTX_PAGES;
 
@@ -6693,6 +6699,8 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp,
 		rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE);
 		if (rmem->nr_pages > 1 || depth)
 			rmem->depth = 1;
+		if (use_init_val)
+			rmem->init_val = bp->ctx->ctx_kind_initializer;
 		rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg);
 	}
 	return rc;
@@ -6783,21 +6791,21 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 	ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries +
 			  extra_qps;
 	mem_size = ctx->qp_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true);
 	if (rc)
 		return rc;
 
 	ctx_pg = &ctx->srq_mem;
 	ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs;
 	mem_size = ctx->srq_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true);
 	if (rc)
 		return rc;
 
 	ctx_pg = &ctx->cq_mem;
 	ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2;
 	mem_size = ctx->cq_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true);
 	if (rc)
 		return rc;
 
@@ -6805,14 +6813,14 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 	ctx_pg->entries = ctx->vnic_max_vnic_entries +
 			  ctx->vnic_max_ring_table_entries;
 	mem_size = ctx->vnic_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, true);
 	if (rc)
 		return rc;
 
 	ctx_pg = &ctx->stat_mem;
 	ctx_pg->entries = ctx->stat_max_entries;
 	mem_size = ctx->stat_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, true);
 	if (rc)
 		return rc;
 
@@ -6828,7 +6836,7 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 	num_ah = 1024 * 128;
 	ctx_pg->entries = num_mr + num_ah;
 	mem_size = ctx->mrav_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2, true);
 	if (rc)
 		return rc;
 	ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV;
@@ -6840,7 +6848,7 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 	ctx_pg = &ctx->tim_mem;
 	ctx_pg->entries = ctx->qp_mem.entries;
 	mem_size = ctx->tim_entry_size * ctx_pg->entries;
-	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+	rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false);
 	if (rc)
 		return rc;
 	ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM;
@@ -6854,7 +6862,7 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 		ctx_pg = ctx->tqm_mem[i];
 		ctx_pg->entries = entries;
 		mem_size = ctx->tqm_entry_size * entries;
-		rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+		rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false);
 		if (rc)
 			return rc;
 		ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 35c483b..dbdd097 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -721,6 +721,7 @@ struct bnxt_ring_mem_info {
 #define BNXT_RMEM_USE_FULL_PAGE_FLAG	4
 
 	u16			depth;
+	u8			init_val;
 
 	void			**pg_arr;
 	dma_addr_t		*dma_arr;
@@ -1352,6 +1353,7 @@ struct bnxt_ctx_mem_info {
 	u32	tim_max_entries;
 	u16	mrav_num_entries_units;
 	u8	tqm_entries_multiple;
+	u8	ctx_kind_initializer;
 
 	u32	flags;
 	#define BNXT_CTX_FLAG_INITED	0x01
-- 
2.5.1


  parent reply	other threads:[~2019-11-23  8:26 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-23  8:25 [PATCH net-next 00/15] bnxt_en: Updates Michael Chan
2019-11-23  8:25 ` [PATCH net-next 01/15] bnxt_en: Add chip IDs for 57452 and 57454 chips Michael Chan
2019-11-23  8:25 ` [PATCH net-next 02/15] bnxt_en: Disable/enable Bus master during suspend/resume Michael Chan
2019-11-23  8:25 ` [PATCH net-next 03/15] bnxt_en: Do driver unregister cleanup in bnxt_init_one() failure path Michael Chan
2019-11-23  8:25 ` [PATCH net-next 04/15] bnxt_en: Combine 2 functions calling the same HWRM_DRV_RGTR fw command Michael Chan
2019-11-23  8:26 ` [PATCH net-next 05/15] bnxt_en: Send FUNC_RESOURCE_QCAPS command in bnxt_resume() Michael Chan
2019-11-23  8:26 ` [PATCH net-next 06/15] bnxt_en: Fix suspend/resume path on 57500 chips Michael Chan
2019-11-23  8:26 ` Michael Chan [this message]
2019-11-23  8:26 ` [PATCH net-next 08/15] bnxt_en: Assign more RSS context resources to the VFs Michael Chan
2019-11-23  8:26 ` [PATCH net-next 09/15] bnxt_en: Skip disabling autoneg before PHY loopback when appropriate Michael Chan
2019-11-23  8:26 ` [PATCH net-next 10/15] bnxt_en: Refactor the initialization of the ethtool link settings Michael Chan
2019-11-23  8:26 ` [PATCH net-next 11/15] bnxt_en: Add async. event logic for PHY configuration changes Michael Chan
2019-11-23  8:26 ` [PATCH net-next 12/15] bnxt_en: Allow PHY settings on multi-function or NPAR PFs if allowed by FW Michael Chan
2019-11-23  8:26 ` [PATCH net-next 13/15] bnxt_en: Add support for flashing the device via devlink Michael Chan
2019-11-23  8:26 ` [PATCH net-next 14/15] bnxt_en: Rename switch_id to dsn Michael Chan
2019-11-23  8:26 ` [PATCH net-next 15/15] bnxt_en: Add support for devlink info command Michael Chan
2019-11-23 19:55   ` Jakub Kicinski
2019-11-23 20:15     ` Michael Chan
2019-11-24  0:09       ` Jakub Kicinski

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