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octeontx2-pf: Fix adding mbox work queue entry when num_vfs > 64 

[ Upstream commit 51597219e0 ]

When more than 64 VFs are enabled for a PF then mbox communication
between VF and PF is not working as mbox work queueing for few VFs
are skipped due to wrong calculation of VF numbers.

Fixes: d424b6c024 ("octeontx2-pf: Enable SRIOV and added VF mbox handling")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Link: https://lore.kernel.org/r/1700930042-5400-1-git-send-email-sbhatta@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Geetha sowjanya 2023-11-25 22:04:02 +05:30 committed by Greg Kroah-Hartman
parent 54260f1483
commit 2587d8fe14
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
View File

@ -557,7 +557,9 @@ static irqreturn_t otx2_pfvf_mbox_intr_handler(int irq, void *pf_irq)
otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(1), intr);
otx2_queue_work(mbox, pf->mbox_pfvf_wq, 64, vfs, intr,
TYPE_PFVF);
vfs -= 64;
if (intr)
trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
vfs = 64;
}
intr = otx2_read64(pf, RVU_PF_VFPF_MBOX_INTX(0));
@ -565,7 +567,8 @@ static irqreturn_t otx2_pfvf_mbox_intr_handler(int irq, void *pf_irq)
otx2_queue_work(mbox, pf->mbox_pfvf_wq, 0, vfs, intr, TYPE_PFVF);
trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
if (intr)
trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
return IRQ_HANDLED;
}