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authorIvan Mikhaylov <i.mikhaylov@yadro.com>2021-08-30 20:18:06 +0300
committerJakub Kicinski <kuba@kernel.org>2021-09-02 03:18:56 +0300
commit205b95fe658ddba25236c60da777f67b4eec3fd3 (patch)
treeaecdf475823d921d2a6c2ac374edfab9961d9b20 /net/ncsi/ncsi-rsp.c
parent5240118f08a07669537677be19edbf008682f8bd (diff)
downloadlinux-205b95fe658ddba25236c60da777f67b4eec3fd3.tar.xz
net/ncsi: add get MAC address command to get Intel i210 MAC address
This patch adds OEM Intel GMA command and response handler for it. Signed-off-by: Brad Ho <Brad_Ho@phoenix.com> Signed-off-by: Paul Fertser <fercerpav@gmail.com> Signed-off-by: Ivan Mikhaylov <i.mikhaylov@yadro.com> Link: https://lore.kernel.org/r/20210830171806.119857-2-i.mikhaylov@yadro.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ncsi/ncsi-rsp.c')
-rw-r--r--net/ncsi/ncsi-rsp.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
index d48374894817..6447a09932f5 100644
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -699,9 +699,51 @@ static int ncsi_rsp_handler_oem_bcm(struct ncsi_request *nr)
return 0;
}
+/* Response handler for Intel command Get Mac Address */
+static int ncsi_rsp_handler_oem_intel_gma(struct ncsi_request *nr)
+{
+ struct ncsi_dev_priv *ndp = nr->ndp;
+ struct net_device *ndev = ndp->ndev.dev;
+ const struct net_device_ops *ops = ndev->netdev_ops;
+ struct ncsi_rsp_oem_pkt *rsp;
+ struct sockaddr saddr;
+ int ret = 0;
+
+ /* Get the response header */
+ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
+
+ saddr.sa_family = ndev->type;
+ ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+ memcpy(saddr.sa_data, &rsp->data[INTEL_MAC_ADDR_OFFSET], ETH_ALEN);
+ /* Increase mac address by 1 for BMC's address */
+ eth_addr_inc((u8 *)saddr.sa_data);
+ if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
+ return -ENXIO;
+
+ /* Set the flag for GMA command which should only be called once */
+ ndp->gma_flag = 1;
+
+ ret = ops->ndo_set_mac_address(ndev, &saddr);
+ if (ret < 0)
+ netdev_warn(ndev,
+ "NCSI: 'Writing mac address to device failed\n");
+
+ return ret;
+}
+
/* Response handler for Intel card */
static int ncsi_rsp_handler_oem_intel(struct ncsi_request *nr)
{
+ struct ncsi_rsp_oem_intel_pkt *intel;
+ struct ncsi_rsp_oem_pkt *rsp;
+
+ /* Get the response header */
+ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
+ intel = (struct ncsi_rsp_oem_intel_pkt *)(rsp->data);
+
+ if (intel->cmd == NCSI_OEM_INTEL_CMD_GMA)
+ return ncsi_rsp_handler_oem_intel_gma(nr);
+
return 0;
}