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bnxt_en: Add support for HWRM_FUNC_BACKING_STORE_CFG_V2 firmware calls

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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>
Link: https://lore.kernel.org/r/20231120234405.194542-9-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Michael Chan 2023-11-20 15:44:00 -08:00 committed by Jakub Kicinski
parent 6a4d0774f0
commit 236e237f8f
2 changed files with 71 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -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 @@ skip_rdma:
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);

1
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -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;