diff mbox series

[net-next,08/13] bnxt_en: Add support for HWRM_FUNC_BACKING_STORE_CFG_V2 firmware calls

Message ID 20231120234405.194542-9-michael.chan@broadcom.com (mailing list archive)
State Accepted
Commit 236e237f8ffe77c704cee1e63beb9578922bcc5c
Delegated to: Netdev Maintainers
Headers show
Series bnxt_en: Prepare to support new P7 chips | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/codegen success Generated files up to date
netdev/tree_selection success Clearly marked for net-next
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: 1127 this patch: 1127
netdev/cc_maintainers success CCed 4 of 4 maintainers
netdev/build_clang success Errors and warnings before: 1154 this patch: 1154
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 No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1158 this patch: 1158
netdev/checkpatch warning WARNING: line length of 81 exceeds 80 columns WARNING: line length of 97 exceeds 80 columns
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 Nov. 20, 2023, 11:44 p.m. UTC 
Newer chips starting with 57600 will use this new firmware HWRM call to
configure backing store memory.  Add this new call if it is supported
by the firmware.

Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 71 ++++++++++++++++++++++-
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |  1 +
 2 files changed, 71 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 19da6c8f8650..85d1fdb616ca 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7670,6 +7670,71 @@  static int bnxt_setup_ctxm_pg_tbls(struct bnxt *bp,
 	return rc;
 }
 
+static int bnxt_hwrm_func_backing_store_cfg_v2(struct bnxt *bp,
+					       struct bnxt_ctx_mem_type *ctxm,
+					       bool last)
+{
+	struct hwrm_func_backing_store_cfg_v2_input *req;
+	u32 instance_bmap = ctxm->instance_bmap;
+	int i, j, rc = 0, n = 1;
+	__le32 *p;
+
+	if (!(ctxm->flags & BNXT_CTX_MEM_TYPE_VALID) || !ctxm->pg_info)
+		return 0;
+
+	if (instance_bmap)
+		n = hweight32(ctxm->instance_bmap);
+	else
+		instance_bmap = 1;
+
+	rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_CFG_V2);
+	if (rc)
+		return rc;
+	hwrm_req_hold(bp, req);
+	req->type = cpu_to_le16(ctxm->type);
+	req->entry_size = cpu_to_le16(ctxm->entry_size);
+	req->subtype_valid_cnt = ctxm->split_entry_cnt;
+	for (i = 0, p = &req->split_entry_0; i < ctxm->split_entry_cnt; i++)
+		p[i] = cpu_to_le32(ctxm->split[i]);
+	for (i = 0, j = 0; j < n && !rc; i++) {
+		struct bnxt_ctx_pg_info *ctx_pg;
+
+		if (!(instance_bmap & (1 << i)))
+			continue;
+		req->instance = cpu_to_le16(i);
+		ctx_pg = &ctxm->pg_info[j++];
+		if (!ctx_pg->entries)
+			continue;
+		req->num_entries = cpu_to_le32(ctx_pg->entries);
+		bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
+				      &req->page_size_pbl_level,
+				      &req->page_dir);
+		if (last && j == n)
+			req->flags =
+				cpu_to_le32(FUNC_BACKING_STORE_CFG_V2_REQ_FLAGS_BS_CFG_ALL_DONE);
+		rc = hwrm_req_send(bp, req);
+	}
+	hwrm_req_drop(bp, req);
+	return rc;
+}
+
+static int bnxt_backing_store_cfg_v2(struct bnxt *bp)
+{
+	struct bnxt_ctx_mem_info *ctx = bp->ctx;
+	struct bnxt_ctx_mem_type *ctxm;
+	int rc = 0;
+	u16 type;
+
+	for (type = 0 ; type < BNXT_CTX_V2_MAX; type++) {
+		ctxm = &ctx->ctx_arr[type];
+
+		rc = bnxt_hwrm_func_backing_store_cfg_v2(bp, ctxm, ctxm->last);
+		if (rc)
+			return rc;
+	}
+	return 0;
+}
+
 void bnxt_free_ctx_mem(struct bnxt *bp)
 {
 	struct bnxt_ctx_mem_info *ctx = bp->ctx;
@@ -7804,7 +7869,11 @@  static int bnxt_alloc_ctx_mem(struct bnxt *bp)
 	for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++)
 		ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i;
 	ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES;
-	rc = bnxt_hwrm_func_backing_store_cfg(bp, ena);
+
+	if (bp->fw_cap & BNXT_FW_CAP_BACKING_STORE_V2)
+		rc = bnxt_backing_store_cfg_v2(bp);
+	else
+		rc = bnxt_hwrm_func_backing_store_cfg(bp, ena);
 	if (rc) {
 		netdev_err(bp->dev, "Failed configuring context mem, rc = %d.\n",
 			   rc);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 0dbf854530f1..a591f950ce14 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1548,6 +1548,7 @@  struct bnxt_ctx_mem_type {
 	u16	type;
 	u16	entry_size;
 	u32	flags;
+#define BNXT_CTX_MEM_TYPE_VALID FUNC_BACKING_STORE_QCAPS_V2_RESP_FLAGS_TYPE_VALID
 	u32	instance_bmap;
 	u8	init_value;
 	u8	entry_multiple;