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qed: Relax VF firmware requirements

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Current driver require an exact match between VF and PF storm firmware;
Any difference would fail the VF acquire message, causing the VF probe
to be aborted.

While there's still dependencies between the two, the recent FW submission
has relaxed the match requirement - instead of an exact match, there's now
a 'fastpath' HSI major/minor scheme, where VFs and PFs that match in their
major number can co-exist even if their minor is different.

In order to accomadate this change some changes in the vf-start init flow
had to be made, as the VF start ramrod now has to be sent only after PF
learns which fastpath HSI its VF is requiring.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz
2016-06-05 13:11:11 +03:00
committed by David S. Miller
parent 3bcb846ca4
commit 1fe614d10f
4 changed files with 116 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/qlogic/qed/qed_vf.c
View File

@ -147,6 +147,8 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
req->vfdev_info.fw_minor = FW_MINOR_VERSION;
req->vfdev_info.fw_revision = FW_REVISION_VERSION;
req->vfdev_info.fw_engineering = FW_ENGINEERING_VERSION;
req->vfdev_info.eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
req->vfdev_info.eth_fp_hsi_minor = ETH_HSI_VER_MINOR;
/* Fill capability field with any non-deprecated config we support */
req->vfdev_info.capabilities |= VFPF_ACQUIRE_CAP_100G;
@ -200,6 +202,16 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
/* Clear response buffer */
memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
} else if ((resp->hdr.status == PFVF_STATUS_NOT_SUPPORTED) &&
pfdev_info->major_fp_hsi &&
(pfdev_info->major_fp_hsi != ETH_HSI_VER_MAJOR)) {
DP_NOTICE(p_hwfn,
"PF uses an incompatible fastpath HSI %02x.%02x [VF requires %02x.%02x]. Please change to a VF driver using %02x.xx.\n",
pfdev_info->major_fp_hsi,
pfdev_info->minor_fp_hsi,
ETH_HSI_VER_MAJOR,
ETH_HSI_VER_MINOR, pfdev_info->major_fp_hsi);
return -EINVAL;
} else {
DP_ERR(p_hwfn,
"PF returned error %d to VF acquisition request\n",
@ -225,6 +237,13 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
}
}
if (ETH_HSI_VER_MINOR &&
(resp->pfdev_info.minor_fp_hsi < ETH_HSI_VER_MINOR)) {
DP_INFO(p_hwfn,
"PF is using older fastpath HSI; %02x.%02x is configured\n",
ETH_HSI_VER_MAJOR, resp->pfdev_info.minor_fp_hsi);
}
return 0;
}