diff mbox series

[net-next,01/15] bnxt_en: Fix backing store V2 logic

Message ID 20231201223924.26955-2-michael.chan@broadcom.com (mailing list archive)
State Accepted
Commit 08b386b132c61e06e573d6523a8c0c17b90fb8da
Delegated to: Netdev Maintainers
Headers show
Series bnxt_en: Support new 5760X P7 devices | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1115 this patch: 1115
netdev/cc_maintainers success CCed 4 of 4 maintainers
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 1146 this patch: 1146
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 60 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Michael Chan Dec. 1, 2023, 10:39 p.m. UTC
The current code determines the last backing store valid type during
bnxt_hwrm_func_backing_store_qcaps_v2().  In effect, the last type
is determined based on what firmware advertises.  The more correct
way is to determine it based on what the driver is configuring.  The
driver may not configure all the backing store types advertised by
firmware.

Move the logic to determine the last type to bnxt_backing_store_cfg_v2().
We need to pass the legacy enable flags to the function in case only
the legacy types are being configured.

Fixes: 236e237f8ffe ("bnxt_en: Add support for HWRM_FUNC_BACKING_STORE_CFG_V2 firmware calls")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 17 +++++++++++------
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |  1 +
 2 files changed, 12 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index e35e7e02538c..6f37b6ac8996 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7249,7 +7249,6 @@  static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp)
 {
 	struct hwrm_func_backing_store_qcaps_v2_output *resp;
 	struct hwrm_func_backing_store_qcaps_v2_input *req;
-	u16 last_valid_type = BNXT_CTX_INV;
 	struct bnxt_ctx_mem_info *ctx;
 	u16 type;
 	int rc;
@@ -7281,7 +7280,6 @@  static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp)
 			continue;
 
 		ctxm->type = le16_to_cpu(resp->type);
-		last_valid_type = ctxm->type;
 		ctxm->entry_size = le16_to_cpu(resp->entry_size);
 		ctxm->flags = flags;
 		ctxm->instance_bmap = le32_to_cpu(resp->instance_bit_map);
@@ -7298,8 +7296,6 @@  static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp)
 		     i++, p++)
 			ctxm->split[i] = le32_to_cpu(*p);
 	}
-	if (last_valid_type < BNXT_CTX_V2_MAX)
-		ctx->ctx_arr[last_valid_type].last = true;
 	rc = bnxt_alloc_all_ctx_pg_info(bp, BNXT_CTX_V2_MAX);
 
 ctx_done:
@@ -7751,13 +7747,22 @@  static int bnxt_hwrm_func_backing_store_cfg_v2(struct bnxt *bp,
 	return rc;
 }
 
-static int bnxt_backing_store_cfg_v2(struct bnxt *bp)
+static int bnxt_backing_store_cfg_v2(struct bnxt *bp, u32 ena)
 {
 	struct bnxt_ctx_mem_info *ctx = bp->ctx;
 	struct bnxt_ctx_mem_type *ctxm;
+	u16 last_type;
 	int rc = 0;
 	u16 type;
 
+	if (!ena)
+		return 0;
+	else if (ena & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM)
+		last_type = BNXT_CTX_MAX - 1;
+	else
+		last_type = BNXT_CTX_L2_MAX - 1;
+	ctx->ctx_arr[last_type].last = 1;
+
 	for (type = 0 ; type < BNXT_CTX_V2_MAX; type++) {
 		ctxm = &ctx->ctx_arr[type];
 
@@ -7904,7 +7909,7 @@  static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 	ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES;
 
 	if (bp->fw_cap & BNXT_FW_CAP_BACKING_STORE_V2)
-		rc = bnxt_backing_store_cfg_v2(bp);
+		rc = bnxt_backing_store_cfg_v2(bp, ena);
 	else
 		rc = bnxt_hwrm_func_backing_store_cfg(bp, ena);
 	if (rc) {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 94b3627406c4..f22800c1bb77 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1611,6 +1611,7 @@  struct bnxt_ctx_mem_type {
 #define BNXT_CTX_XPAR	FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_XID_PARTITION
 
 #define BNXT_CTX_MAX	(BNXT_CTX_TIM + 1)
+#define BNXT_CTX_L2_MAX	(BNXT_CTX_FTQM + 1)
 #define BNXT_CTX_V2_MAX	(BNXT_CTX_XPAR + 1)
 #define BNXT_CTX_INV	((u16)-1)