git: 4471ff11969e - main - cxgbev(4): Shared code for the VF driver to query a VF's VLAN config.

[Navdeep Parhar]

The branch main has been updated by np:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=4471ff11969ec6bd2e5d3c745fc5ba90fda596ed

commit 4471ff11969ec6bd2e5d3c745fc5ba90fda596ed
Author:     Navdeep Parhar <n...@freebsd.org>
AuthorDate: 2024-06-12 22:24:25 +0000
Commit:     Navdeep Parhar <n...@freebsd.org>
CommitDate: 2024-06-17 17:29:17 +0000

    cxgbev(4): Shared code for the VF driver to query a VF's VLAN config.
    
    MFC after:      1 week
    Sponsored by:   Chelsio Communications
---
 sys/dev/cxgbe/common/common.h  |  1 +
 sys/dev/cxgbe/common/t4vf_hw.c | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/sys/dev/cxgbe/common/common.h b/sys/dev/cxgbe/common/common.h
index a49c21576994..6e80ce40648b 100644
--- a/sys/dev/cxgbe/common/common.h
+++ b/sys/dev/cxgbe/common/common.h
@@ -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);
diff --git a/sys/dev/cxgbe/common/t4vf_hw.c b/sys/dev/cxgbe/common/t4vf_hw.c
index a0c2eb5f60b3..8091eb5db2f9 100644
--- a/sys/dev/cxgbe/common/t4vf_hw.c
+++ b/sys/dev/cxgbe/common/t4vf_hw.c
@@ -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;
+}