qed*: Add support for VFs over legacy PFs

Modern VFs can't run on old non-compatible as the fastpath HSI is
slightly changed - but as the HSI is actually very close [basically,
a single bit whose meaning flipped] this can be supported with small
modifications.

The major differences would be in:
  - Recognizing that VF is running on top of a legacy PF.
  - Returning some slowpath configurations that are no longer needed
    on top of modern PFs, but would be required when working over
    the legacy ones.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/qed/qed_eth_if.h b/include/linux/qed/qed_eth_if.h
index 4475a9d8ae15..33c24ebc9b7f 100644
--- a/include/linux/qed/qed_eth_if.h
+++ b/include/linux/qed/qed_eth_if.h
@@ -23,6 +23,9 @@ struct qed_dev_eth_info {
 
         u8      port_mac[ETH_ALEN];
         u8      num_vlan_filters;
+
+        /* Legacy VF - this affects the datapath, so qede has to know */
+        bool is_legacy;
 };
 
 struct qed_update_vport_rss_params {