sfc: Store vf_index in nic_data for Ef10.

Added function efx_ef10_get_vf_index to store the vf_index
in nic_data during probe

vf_index is needed in future patches to access a particular
VF in the VF data structure.

Moved efx_ef10_probe_pf and efx_ef10_probe_vf in order to
used efx_ef10_remove

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 70cbad3..8b6579a 100644 (file)
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -119,6 +119,26 @@ static int efx_ef10_get_pf_index(struct efx_nic *efx)
        return 0;
 }
 
+#ifdef CONFIG_SFC_SRIOV
+static int efx_ef10_get_vf_index(struct efx_nic *efx)
+{
+       MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_FUNCTION_INFO_OUT_LEN);
+       struct efx_ef10_nic_data *nic_data = efx->nic_data;
+       size_t outlen;
+       int rc;
+
+       rc = efx_mcdi_rpc(efx, MC_CMD_GET_FUNCTION_INFO, NULL, 0, outbuf,
+                         sizeof(outbuf), &outlen);
+       if (rc)
+               return rc;
+       if (outlen < sizeof(outbuf))
+               return -EIO;
+
+       nic_data->vf_index = MCDI_DWORD(outbuf, GET_FUNCTION_INFO_OUT_VF);
+       return 0;
+}
+#endif
+
 static int efx_ef10_init_datapath_caps(struct efx_nic *efx)
 {
        MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CAPABILITIES_OUT_LEN);
@@ -328,23 +348,6 @@ fail1:
        return rc;
 }
 
-static int efx_ef10_probe_pf(struct efx_nic *efx)
-{
-       return efx_ef10_probe(efx);
-}
-
-#ifdef CONFIG_SFC_SRIOV
-static int efx_ef10_probe_vf(struct efx_nic *efx)
-{
-       return efx_ef10_probe(efx);
-}
-#else
-static int efx_ef10_probe_vf(struct efx_nic *efx __attribute__ ((unused)))
-{
-       return 0;
-}
-#endif
-
 static int efx_ef10_free_vis(struct efx_nic *efx)
 {
        MCDI_DECLARE_BUF_OUT_OR_ERR(outbuf, 0);
@@ -561,6 +564,37 @@ static void efx_ef10_remove(struct efx_nic *efx)
        kfree(nic_data);
 }
 
+static int efx_ef10_probe_pf(struct efx_nic *efx)
+{
+       return efx_ef10_probe(efx);
+}
+
+#ifdef CONFIG_SFC_SRIOV
+static int efx_ef10_probe_vf(struct efx_nic *efx)
+{
+       int rc;
+
+       rc = efx_ef10_probe(efx);
+       if (rc)
+               return rc;
+
+       rc = efx_ef10_get_vf_index(efx);
+       if (rc)
+               goto fail;
+
+       return 0;
+
+fail:
+       efx_ef10_remove(efx);
+       return rc;
+}
+#else
+static int efx_ef10_probe_vf(struct efx_nic *efx __attribute__ ((unused)))
+{
+       return 0;
+}
+#endif
+
 static int efx_ef10_alloc_vis(struct efx_nic *efx,
                              unsigned int min_vis, unsigned int max_vis)
 {

diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 2fd3055..db8562e 100644 (file)
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -525,6 +525,7 @@ struct efx_ef10_nic_data {
        bool must_probe_vswitching;
        unsigned int pf_index;
 #ifdef CONFIG_SFC_SRIOV
+       unsigned int vf_index;
        struct ef10_vf *vf;
 #endif
        u8 vport_mac[ETH_ALEN];