From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla@dpdk.org
Subject: [Bug 92] i40e RX capabilities include scatter/gather on
 VF, but not on PF
Date: Wed, 19 Sep 2018 19:11:41 +0000
Message-ID: <bug-92-3@http.bugs.dpdk.org/>
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https://bugs.dpdk.org/show_bug.cgi?id=3D92

            Bug ID: 92
           Summary: i40e RX capabilities include scatter/gather on VF, but
                    not on PF
           Product: DPDK
           Version: 18.08
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: mgsmith@netgate.com
  Target Milestone: ---

In file drivers/net/i40e/i40e_ethdev.c, function i40e_dev_info_get(), the l=
ist
of RX capabilities advertised in dev_info->rx_offload_capa does not include
DEV_RX_OFFLOAD_SCATTER.

The DEV_RX_OFFLOAD_SCATTER flag is advertised as a capability for an i40e V=
F in
file drivers/net/i40e/i40e_ethdev_vf.c, function i40evf_dev_info_get().

The documentation at https://doc.dpdk.org/guides/nics/i40e.html lists
"Scattered and gather for TX and RX" as a feature of the PMD.

Since the documentation lists it as supported and the VF supports it, it se=
ems
like the omission of this flag in the PF RX capabilities may have been a
mistake. If it is actually intentional, perhaps the documentation can be
clarified to indicate that scatter/gather is only supported on the VF.

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