[dpdk-dev] net/bnxt: fix a segfault encountered during PMD exit
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Commit Message
This patch fixes segfault encountered during dev_uninit/close routine.
KNI sample app can be used to reproduce the issue.
backported from upstream commit 316e412
Cc: <stable@dpdk.org>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
drivers/net/bnxt/bnxt.h | 1 +
drivers/net/bnxt/bnxt_ethdev.c | 28 ++++++++++++++++++----------
2 files changed, 19 insertions(+), 10 deletions(-)
@@ -171,6 +171,7 @@ struct bnxt {
struct bnxt_pf_info pf;
struct bnxt_vf_info vf;
+ uint8_t dev_stopped;
};
#endif
@@ -384,6 +384,7 @@ static int bnxt_dev_start_op(struct rte_eth_dev *eth_dev)
struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
int rc;
+ bp->dev_stopped = 0;
rc = bnxt_hwrm_func_reset(bp);
if (rc) {
RTE_LOG(ERR, PMD, "hwrm chip reset failure rc: %x\n", rc);
@@ -427,16 +428,6 @@ static int bnxt_dev_set_link_down_op(struct rte_eth_dev *eth_dev)
return 0;
}
-static void bnxt_dev_close_op(struct rte_eth_dev *eth_dev)
-{
- struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
-
- bnxt_free_tx_mbufs(bp);
- bnxt_free_rx_mbufs(bp);
- bnxt_free_mem(bp);
- rte_free(eth_dev->data->mac_addrs);
-}
-
/* Unload the driver, release resources */
static void bnxt_dev_stop_op(struct rte_eth_dev *eth_dev)
{
@@ -449,6 +440,19 @@ static void bnxt_dev_stop_op(struct rte_eth_dev *eth_dev)
bnxt_shutdown_nic(bp);
}
+static void bnxt_dev_close_op(struct rte_eth_dev *eth_dev)
+{
+ struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
+
+ if (bp->dev_stopped == 0)
+ bnxt_dev_stop_op(eth_dev);
+
+ bnxt_free_tx_mbufs(bp);
+ bnxt_free_rx_mbufs(bp);
+ bnxt_free_mem(bp);
+ rte_free(eth_dev->data->mac_addrs);
+}
+
static void bnxt_mac_addr_remove_op(struct rte_eth_dev *eth_dev,
uint32_t index)
{
@@ -1021,6 +1025,8 @@ bnxt_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->pci_dev->mem_resource[0].phys_addr,
eth_dev->pci_dev->mem_resource[0].addr);
+ bp->dev_stopped = 0;
+
return 0;
error_free:
@@ -1040,6 +1046,8 @@ bnxt_dev_uninit(struct rte_eth_dev *eth_dev) {
rte_free(bp->grp_info);
rc = bnxt_hwrm_func_driver_unregister(bp, 0);
bnxt_free_hwrm_resources(bp);
+ if (bp->dev_stopped == 0)
+ bnxt_dev_close_op(eth_dev);
return rc;
}