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ice: Add feature bitmap, helpers and a check for DSCP

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DSCP a.k.a L3 QoS is only supported on certain devices. To enforce this,
this patch introduces a bitmap of features and helper functions.

The feature bitmap is set based on device IDs on driver init. Currently,
DSCP is the only feature in this bitmap, but there will be more in the
future. In the DCB netlink flow, check if the feature bit is set before
exercising DSCP.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Anirudh Venkataramanan
2021-07-16 15:16:41 -07:00
committed by Tony Nguyen
parent 2a87bd73e5
commit 40b247608b
5 changed files with 63 additions and 2 deletions
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2
drivers/net/ethernet/intel/ice/ice_main.c
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@@ -4270,6 +4270,8 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
goto err_exit_unroll;
}
ice_init_feature_support(pf);
ice_request_fw(pf);
/* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be