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cxgb4: impose mandatory VLAN usage when non-zero TAG ID

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When a non-zero VLAN Tag ID is passed to t4_set_vlan_acl()
then impose mandatory VLAN Usage with that VLAN ID.
I.e any other VLAN ID should result in packets getting
dropped.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Casey Leedom 2018-09-07 15:59:33 +05:30 committed by David S. Miller
parent be7e1b334b
commit a89cdd8e7c
2 changed files with 4 additions and 0 deletions
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3
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
View File

@ -10210,6 +10210,9 @@ int t4_set_vlan_acl(struct adapter *adap, unsigned int mbox, unsigned int vf,
vlan_cmd.en_to_len16 = cpu_to_be32(enable | FW_LEN16(vlan_cmd)); vlan_cmd.en_to_len16 = cpu_to_be32(enable | FW_LEN16(vlan_cmd));
/* Drop all packets that donot match vlan id */ /* Drop all packets that donot match vlan id */
vlan_cmd.dropnovlan_fm = FW_ACL_VLAN_CMD_FM_F; vlan_cmd.dropnovlan_fm = FW_ACL_VLAN_CMD_FM_F;
vlan_cmd.dropnovlan_fm = (enable
? (FW_ACL_VLAN_CMD_DROPNOVLAN_F |
FW_ACL_VLAN_CMD_FM_F) : 0);
if (enable != 0) { if (enable != 0) {
vlan_cmd.nvlan = 1; vlan_cmd.nvlan = 1;
vlan_cmd.vlanid[0] = cpu_to_be16(vlan); vlan_cmd.vlanid[0] = cpu_to_be16(vlan);

1
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
View File

@ -2464,6 +2464,7 @@ struct fw_acl_vlan_cmd {
#define FW_ACL_VLAN_CMD_DROPNOVLAN_S 7 #define FW_ACL_VLAN_CMD_DROPNOVLAN_S 7
#define FW_ACL_VLAN_CMD_DROPNOVLAN_V(x) ((x) << FW_ACL_VLAN_CMD_DROPNOVLAN_S) #define FW_ACL_VLAN_CMD_DROPNOVLAN_V(x) ((x) << FW_ACL_VLAN_CMD_DROPNOVLAN_S)
#define FW_ACL_VLAN_CMD_DROPNOVLAN_F FW_ACL_VLAN_CMD_DROPNOVLAN_V(1U)
#define FW_ACL_VLAN_CMD_FM_S 6 #define FW_ACL_VLAN_CMD_FM_S 6
#define FW_ACL_VLAN_CMD_FM_M 0x1 #define FW_ACL_VLAN_CMD_FM_M 0x1