[PATCH 4/5] net/bnxt: check if MAC address is all zeros
From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: 2018-01-22 06:20:54
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
In certain cases the MAC address of a port could be all zeros. Catch it early, log a message and fail the initiaization. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> --- drivers/net/bnxt/bnxt_ethdev.c | 10 ++++++++++ drivers/net/bnxt/bnxt_filter.c | 2 +- drivers/net/bnxt/bnxt_filter.h | 1 + 3 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index af4673dc2..ebc2dfab2 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c@@ -3247,6 +3247,16 @@ bnxt_dev_init(struct rte_eth_dev *eth_dev) rc = -ENOMEM; goto error_free; } + + if (check_zero_bytes(bp->dflt_mac_addr, ETHER_ADDR_LEN)) { + PMD_DRV_LOG(ERR, + "Invalid MAC addr %02X:%02X:%02X:%02X:%02X:%02X\n", + bp->dflt_mac_addr[0], bp->dflt_mac_addr[1], + bp->dflt_mac_addr[2], bp->dflt_mac_addr[3], + bp->dflt_mac_addr[4], bp->dflt_mac_addr[5]); + rc = -EINVAL; + goto error_free; + } /* Copy the permanent MAC from the qcap response address now. */ memcpy(bp->mac_addr, bp->dflt_mac_addr, sizeof(bp->mac_addr)); memcpy(ð_dev->data->mac_addrs[0], bp->mac_addr, ETHER_ADDR_LEN);
diff --git a/drivers/net/bnxt/bnxt_filter.c b/drivers/net/bnxt/bnxt_filter.c
index 0716dd8fd..032e8eed0 100644
--- a/drivers/net/bnxt/bnxt_filter.c
+++ b/drivers/net/bnxt/bnxt_filter.c@@ -250,7 +250,7 @@ nxt_non_void_action(const struct rte_flow_action *cur) } } -static inline int check_zero_bytes(const uint8_t *bytes, int len) +int check_zero_bytes(const uint8_t *bytes, int len) { int i; for (i = 0; i < len; i++)
diff --git a/drivers/net/bnxt/bnxt_filter.h b/drivers/net/bnxt/bnxt_filter.h
index 2591a87e2..a3c702df6 100644
--- a/drivers/net/bnxt/bnxt_filter.h
+++ b/drivers/net/bnxt/bnxt_filter.h@@ -97,6 +97,7 @@ struct bnxt_filter_info *bnxt_get_unused_filter(struct bnxt *bp); void bnxt_free_filter(struct bnxt *bp, struct bnxt_filter_info *filter); struct bnxt_filter_info *bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf, struct bnxt_vnic_info *vnic); +int check_zero_bytes(const uint8_t *bytes, int len); #define NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR \ HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_SRC_MACADDR
--
2.14.3 (Apple Git-98)