[3/3] net/bnxt: fix VF info allocation
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Commit Message
From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
1. Renamed bnxt_hwrm_alloc_vf_info()/bnxt_hwrm_free_vf_info to
bnxt_alloc_vf_info()/bnxt_free_vf_info as it does not
issue any HWRM command to fw.
2. Fix missing unlock when memory allocation fails.
Fixes: b7778e8a1c00 ("net/bnxt: refactor to properly allocate resources for PF/VF")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde@broadcom.com>
---
drivers/net/bnxt/bnxt_ethdev.c | 2 +-
drivers/net/bnxt/bnxt_hwrm.c | 94 ++++++++++++++++++++++++------------------
drivers/net/bnxt/bnxt_hwrm.h | 2 +-
3 files changed, 57 insertions(+), 41 deletions(-)
@@ -1557,7 +1557,7 @@ static void bnxt_drv_uninit(struct bnxt *bp)
rte_memzone_free((const struct rte_memzone *)bp->rx_mem_zone);
bp->rx_mem_zone = NULL;
- bnxt_hwrm_free_vf_info(bp);
+ bnxt_free_vf_info(bp);
rte_free(bp->grp_info);
bp->grp_info = NULL;
@@ -788,10 +788,13 @@ static int bnxt_hwrm_ptp_qcfg(struct bnxt *bp)
return 0;
}
-void bnxt_hwrm_free_vf_info(struct bnxt *bp)
+void bnxt_free_vf_info(struct bnxt *bp)
{
int i;
+ if (bp->pf->vf_info == NULL)
+ return;
+
for (i = 0; i < bp->pf->max_vfs; i++) {
rte_free(bp->pf->vf_info[i].vlan_table);
bp->pf->vf_info[i].vlan_table = NULL;
@@ -802,6 +805,50 @@ void bnxt_hwrm_free_vf_info(struct bnxt *bp)
bp->pf->vf_info = NULL;
}
+static int bnxt_alloc_vf_info(struct bnxt *bp, uint16_t max_vfs)
+{
+ struct bnxt_child_vf_info *vf_info = bp->pf->vf_info;
+ int i;
+
+ if (vf_info)
+ bnxt_free_vf_info(bp);
+
+ vf_info = rte_zmalloc("bnxt_vf_info", sizeof(*vf_info) * max_vfs, 0);
+ if (vf_info == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc vf info\n");
+ return -ENOMEM;
+ }
+
+ bp->pf->max_vfs = max_vfs;
+ for (i = 0; i < max_vfs; i++) {
+ vf_info[i].fid = bp->pf->first_vf_id + i;
+ vf_info[i].vlan_table = rte_zmalloc("VF VLAN table",
+ getpagesize(), getpagesize());
+ if (vf_info[i].vlan_table == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc VLAN table for VF %d\n", i);
+ goto err;
+ }
+ rte_mem_lock_page(vf_info[i].vlan_table);
+
+ vf_info[i].vlan_as_table = rte_zmalloc("VF VLAN AS table",
+ getpagesize(), getpagesize());
+ if (vf_info[i].vlan_as_table == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc VLAN AS table for VF %d\n", i);
+ goto err;
+ }
+ rte_mem_lock_page(vf_info[i].vlan_as_table);
+
+ STAILQ_INIT(&vf_info[i].filter);
+ }
+
+ bp->pf->vf_info = vf_info;
+
+ return 0;
+err:
+ bnxt_free_vf_info(bp);
+ return -ENOMEM;
+}
+
static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
{
int rc = 0;
@@ -809,7 +856,6 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
uint16_t new_max_vfs;
uint32_t flags;
- int i;
HWRM_PREP(&req, HWRM_FUNC_QCAPS, BNXT_USE_CHIMP_MB);
@@ -827,43 +873,9 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
bp->pf->total_vfs = rte_le_to_cpu_16(resp->max_vfs);
new_max_vfs = bp->pdev->max_vfs;
if (new_max_vfs != bp->pf->max_vfs) {
- if (bp->pf->vf_info)
- bnxt_hwrm_free_vf_info(bp);
- bp->pf->vf_info = rte_zmalloc("bnxt_vf_info",
- sizeof(bp->pf->vf_info[0]) * new_max_vfs, 0);
- if (bp->pf->vf_info == NULL) {
- PMD_DRV_LOG(ERR, "Alloc vf info fail\n");
- HWRM_UNLOCK();
- return -ENOMEM;
- }
- bp->pf->max_vfs = new_max_vfs;
- for (i = 0; i < new_max_vfs; i++) {
- bp->pf->vf_info[i].fid =
- bp->pf->first_vf_id + i;
- bp->pf->vf_info[i].vlan_table =
- rte_zmalloc("VF VLAN table",
- getpagesize(),
- getpagesize());
- if (bp->pf->vf_info[i].vlan_table == NULL)
- PMD_DRV_LOG(ERR,
- "Fail to alloc VLAN table for VF %d\n",
- i);
- else
- rte_mem_lock_page(
- bp->pf->vf_info[i].vlan_table);
- bp->pf->vf_info[i].vlan_as_table =
- rte_zmalloc("VF VLAN AS table",
- getpagesize(),
- getpagesize());
- if (bp->pf->vf_info[i].vlan_as_table == NULL)
- PMD_DRV_LOG(ERR,
- "Alloc VLAN AS table for VF %d fail\n",
- i);
- else
- rte_mem_lock_page(
- bp->pf->vf_info[i].vlan_as_table);
- STAILQ_INIT(&bp->pf->vf_info[i].filter);
- }
+ rc = bnxt_alloc_vf_info(bp, new_max_vfs);
+ if (rc)
+ goto unlock;
}
}
@@ -922,6 +934,7 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
if (flags & HWRM_FUNC_QCAPS_OUTPUT_FLAGS_LINK_ADMIN_STATUS_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_LINK_ADMIN;
+unlock:
HWRM_UNLOCK();
return rc;
@@ -932,6 +945,9 @@ int bnxt_hwrm_func_qcaps(struct bnxt *bp)
int rc;
rc = __bnxt_hwrm_func_qcaps(bp);
+ if (rc == -ENOMEM)
+ return rc;
+
if (!rc && bp->hwrm_spec_code >= HWRM_SPEC_CODE_1_8_3) {
rc = bnxt_alloc_ctx_mem(bp);
if (rc)
@@ -297,7 +297,7 @@ int bnxt_hwrm_port_phy_qcaps(struct bnxt *bp);
int bnxt_hwrm_oem_cmd(struct bnxt *bp, uint32_t entry_num);
int bnxt_clear_one_vnic_filter(struct bnxt *bp,
struct bnxt_filter_info *filter);
-void bnxt_hwrm_free_vf_info(struct bnxt *bp);
+void bnxt_free_vf_info(struct bnxt *bp);
int bnxt_hwrm_first_vf_id_query(struct bnxt *bp, uint16_t fid,
uint16_t *first_vf_id);
int bnxt_hwrm_cfa_pair_alloc(struct bnxt *bp, struct bnxt_representor *rep);