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cxgbev(4): Shared code for the VF driver to query a VF's VLAN config.

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MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2024-06-12 15:24:25 -07:00
parent c6030b3804
commit 4471ff1196
2 changed files with 28 additions and 0 deletions
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1
sys/dev/cxgbe/common/common.h
View File

@ -948,6 +948,7 @@ int t4vf_get_vfres(struct adapter *adapter);
int t4vf_prep_adapter(struct adapter *adapter);
int t4vf_get_vf_mac(struct adapter *adapter, unsigned int port,
unsigned int *naddr, u8 *addr);
int t4vf_get_vf_vlan(struct adapter *adapter);
int t4_bar2_sge_qregs(struct adapter *adapter, unsigned int qid,
enum t4_bar2_qtype qtype, int user, u64 *pbar2_qoffset,
unsigned int *pbar2_qid);

27
sys/dev/cxgbe/common/t4vf_hw.c
View File

@ -429,3 +429,30 @@ int t4vf_get_vf_mac(struct adapter *adapter, unsigned int port,
return ret;
}
/*
* t4vf_get_vf_vlan - Get the VLAN ID to be set to the VI of this VF.
* @adapter: The adapter
*
* Find the VLAN ID to be set to the VF's VI. The requested VLAN ID
* is from the host OS via callback in the PF driver.
*/
int t4vf_get_vf_vlan(struct adapter *adapter)
{
struct fw_acl_vlan_cmd cmd = {0};
int vlan = 0;
int ret = 0;
cmd.op_to_vfn = htonl(V_FW_CMD_OP(FW_ACL_VLAN_CMD) |
F_FW_CMD_REQUEST | F_FW_CMD_READ);
/* Note: Do not enable the ACL */
cmd.en_to_len16 = htonl((unsigned int)FW_LEN16(cmd));
ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &cmd);
if (!ret)
vlan = be16_to_cpu(cmd.vlanid[0]);
return vlan;
}