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qed: Fix reading stale configuration information 

Configuration information read at driver load can become stale after it is
updated. Mark information as not valid and re-populate when this happens.

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis Bolotin 2018-07-04 17:06:46 +03:00 committed by David S. Miller
parent df8ed346d4
commit 5e7ba042fd
2 changed files with 28 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/qlogic/qed/qed.h
View File

@ -502,6 +502,7 @@ enum BAR_ID {
struct qed_nvm_image_info {
u32 num_images;
struct bist_nvm_image_att *image_att;
bool valid;
};
#define DRV_MODULE_VERSION \

39
drivers/net/ethernet/qlogic/qed/qed_mcp.c
View File

@ -592,6 +592,9 @@ int qed_mcp_nvm_wr_cmd(struct qed_hwfn *p_hwfn,
*o_mcp_resp = mb_params.mcp_resp;
*o_mcp_param = mb_params.mcp_param;
/* nvm_info needs to be updated */
p_hwfn->nvm_info.valid = false;
return 0;
}
@ -2555,11 +2558,14 @@ int qed_mcp_bist_nvm_get_image_att(struct qed_hwfn *p_hwfn,
int qed_mcp_nvm_info_populate(struct qed_hwfn *p_hwfn)
{
struct qed_nvm_image_info *nvm_info = &p_hwfn->nvm_info;
struct qed_nvm_image_info nvm_info;
struct qed_ptt *p_ptt;
int rc;
u32 i;
if (p_hwfn->nvm_info.valid)
return 0;
p_ptt = qed_ptt_acquire(p_hwfn);
if (!p_ptt) {
DP_ERR(p_hwfn, "failed to acquire ptt\n");
@ -2567,29 +2573,29 @@ int qed_mcp_nvm_info_populate(struct qed_hwfn *p_hwfn)
}
/* Acquire from MFW the amount of available images */
nvm_info->num_images = 0;
nvm_info.num_images = 0;
rc = qed_mcp_bist_nvm_get_num_images(p_hwfn,
p_ptt, &nvm_info->num_images);
p_ptt, &nvm_info.num_images);
if (rc == -EOPNOTSUPP) {
DP_INFO(p_hwfn, "DRV_MSG_CODE_BIST_TEST is not supported\n");
goto out;
} else if (rc || !nvm_info->num_images) {
} else if (rc || !nvm_info.num_images) {
DP_ERR(p_hwfn, "Failed getting number of images\n");
goto err0;
}
nvm_info->image_att = kmalloc_array(nvm_info->num_images,
sizeof(struct bist_nvm_image_att),
GFP_KERNEL);
if (!nvm_info->image_att) {
nvm_info.image_att = kmalloc_array(nvm_info.num_images,
sizeof(struct bist_nvm_image_att),
GFP_KERNEL);
if (!nvm_info.image_att) {
rc = -ENOMEM;
goto err0;
}
/* Iterate over images and get their attributes */
for (i = 0; i < nvm_info->num_images; i++) {
for (i = 0; i < nvm_info.num_images; i++) {
rc = qed_mcp_bist_nvm_get_image_att(p_hwfn, p_ptt,
&nvm_info->image_att[i], i);
&nvm_info.image_att[i], i);
if (rc) {
DP_ERR(p_hwfn,
"Failed getting image index %d attributes\n", i);
@ -2597,14 +2603,22 @@ int qed_mcp_nvm_info_populate(struct qed_hwfn *p_hwfn)
}
DP_VERBOSE(p_hwfn, QED_MSG_SP, "image index %d, size %x\n", i,
nvm_info->image_att[i].len);
nvm_info.image_att[i].len);
}
out:
/* Update hwfn's nvm_info */
if (nvm_info.num_images) {
p_hwfn->nvm_info.num_images = nvm_info.num_images;
kfree(p_hwfn->nvm_info.image_att);
p_hwfn->nvm_info.image_att = nvm_info.image_att;
p_hwfn->nvm_info.valid = true;
}
qed_ptt_release(p_hwfn, p_ptt);
return 0;
err1:
kfree(nvm_info->image_att);
kfree(nvm_info.image_att);
err0:
qed_ptt_release(p_hwfn, p_ptt);
return rc;
@ -2641,6 +2655,7 @@ qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
return -EINVAL;
}
qed_mcp_nvm_info_populate(p_hwfn);
for (i = 0; i < p_hwfn->nvm_info.num_images; i++)
if (type == p_hwfn->nvm_info.image_att[i].image_type)
break;