diff mbox series

[v2] common/mlx5: fix storing the synched MAC to internal table

Message ID 20210202035352.24512-1-sodey@rbbn.com (mailing list archive)
State Superseded, archived
Delegated to: Raslan Darawsheh
Headers
Series [v2] common/mlx5: fix storing the synched MAC to internal table |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS

Commit Message

Dey, Souvik Feb. 2, 2021, 3:53 a.m. UTC 
  From: Souvik Dey <sodey@rbbn.com>

As the internal MAC table is divided into Unicast and Multicast address
sections, we should check the type of synched MAC address before storing
it to the internal table. Currently the check is not done, and the
synched MAC of 33:33:00:00:00:01 gets stored in the unicast section
(mostly index 1) causing all subsequent mlx5_set_mc_addr_list()
to fail with error -EADDRINUSE, as the mac_list contains the MAC
33:33:00:00:00:01. This denies adding of any new multicast address to
the internal list and also fails to add the MAC address to the device
in case of SR-IOV VF.

Fixes: f22442cb5d42 (�net/mlx5: reduce Netlink commands dependencies�)
Fixes: ccdcba53a3f4 (�net/mlx5: use Netlink to add/remove MAC addresses�)
Cc: stable@dpdk.org

Signed-off-by: Souvik Dey <sodey@rbbn.com>
---
v2:
* net/ -> common/
* space after mlx5:
* synched -> synched
* section -> sections
* rewording which causes -> causing 
* typo: case (to remove)
* added Fixes for LTS ML
---
 drivers/common/mlx5/linux/mlx5_nl.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

Comments

Slava Ovsiienko Feb. 2, 2021, 12:58 p.m. UTC | #1 
Hi, 

It seems there is wrong quota character in the "Fixes: " tags:

( net/mlx5: reduce Netlink commands dependencies )

With best regards,
Slava

> -----Original Message-----
> From: Dey, Souvik <sodey@rbbn.com>
> Sent: Tuesday, February 2, 2021 5:54
> To: Raslan Darawsheh <rasland@nvidia.com>; Slava Ovsiienko
> <viacheslavo@nvidia.com>; Matan Azrad <matan@nvidia.com>; Shahaf
> Shuler <shahafs@nvidia.com>
> Cc: dev@dpdk.org; stable@dpdk.org; Souvik Dey <sodey@rbbn.com>
> Subject: [PATCH v2] common/mlx5: fix storing the synched MAC to internal
> table
> 
> From: Souvik Dey <sodey@rbbn.com>
> 
> As the internal MAC table is divided into Unicast and Multicast address
> sections, we should check the type of synched MAC address before storing it
> to the internal table. Currently the check is not done, and the synched MAC of
> 33:33:00:00:00:01 gets stored in the unicast section (mostly index 1) causing
> all subsequent mlx5_set_mc_addr_list() to fail with error -EADDRINUSE, as the
> mac_list contains the MAC 33:33:00:00:00:01. This denies adding of any new
> multicast address to the internal list and also fails to add the MAC address to
> the device in case of SR-IOV VF.
> 
> Fixes: f22442cb5d42 ( net/mlx5: reduce Netlink commands dependencies )
> Fixes: ccdcba53a3f4 ( net/mlx5: use Netlink to add/remove MAC addresses )
> Cc: stable@dpdk.org
> 
> Signed-off-by: Souvik Dey <sodey@rbbn.com>
> ---
> v2:
> * net/ -> common/
> * space after mlx5:
> * synched -> synched
> * section -> sections
> * rewording which causes -> causing
> * typo: case (to remove)
> * added Fixes for LTS ML
> ---
>  drivers/common/mlx5/linux/mlx5_nl.c | 20 +++++++++++++++-----
>  1 file changed, 15 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/common/mlx5/linux/mlx5_nl.c
> b/drivers/common/mlx5/linux/mlx5_nl.c
> index 40d8620..ef7a521 100644
> --- a/drivers/common/mlx5/linux/mlx5_nl.c
> +++ b/drivers/common/mlx5/linux/mlx5_nl.c
> @@ -758,11 +758,21 @@ mlx5_nl_mac_addr_sync(int nlsk_fd, unsigned int
> iface_idx,
>  				break;
>  		if (j != n)
>  			continue;
> -		/* Find the first entry available. */
> -		for (j = 0; j != n; ++j) {
> -			if (rte_is_zero_ether_addr(&mac_addrs[j])) {
> -				mac_addrs[j] = macs[i];
> -				break;
> +		if (rte_is_multicast_ether_addr(&macs[i])) {
> +			/* Find the first entry available. */
> +			for (j = MLX5_MAX_UC_MAC_ADDRESSES; j != n; ++j)
> {
> +				if (rte_is_zero_ether_addr(&mac_addrs[j])) {
> +					mac_addrs[j] = macs[i];
> +					break;
> +				}
> +			}
> +		} else {
> +			/* Find the first entry available. */
> +			for (j = 0; j != MLX5_MAX_UC_MAC_ADDRESSES; ++j)
> {
> +				if (rte_is_zero_ether_addr(&mac_addrs[j])) {
> +					mac_addrs[j] = macs[i];
> +					break;
> +				}
>  			}
>  		}
>  	}
> --
> 2.9.3.windows.1
> 
> 
> Notice: This e-mail together with any attachments may contain information of
> Ribbon Communications Inc. and its Affiliates that is confidential and/or
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diff mbox series

Patch

diff --git a/drivers/common/mlx5/linux/mlx5_nl.c b/drivers/common/mlx5/linux/mlx5_nl.c
index 40d8620..ef7a521 100644
--- a/drivers/common/mlx5/linux/mlx5_nl.c
+++ b/drivers/common/mlx5/linux/mlx5_nl.c
@@ -758,11 +758,21 @@  mlx5_nl_mac_addr_sync(int nlsk_fd, unsigned int iface_idx,
 				break;
 		if (j != n)
 			continue;
-		/* Find the first entry available. */
-		for (j = 0; j != n; ++j) {
-			if (rte_is_zero_ether_addr(&mac_addrs[j])) {
-				mac_addrs[j] = macs[i];
-				break;
+		if (rte_is_multicast_ether_addr(&macs[i])) {
+			/* Find the first entry available. */
+			for (j = MLX5_MAX_UC_MAC_ADDRESSES; j != n; ++j) {
+				if (rte_is_zero_ether_addr(&mac_addrs[j])) {
+					mac_addrs[j] = macs[i];
+					break;
+				}
+			}
+		} else {
+			/* Find the first entry available. */
+			for (j = 0; j != MLX5_MAX_UC_MAC_ADDRESSES; ++j) {
+				if (rte_is_zero_ether_addr(&mac_addrs[j])) {
+					mac_addrs[j] = macs[i];
+					break;
+				}
 			}
 		}
 	}