Re: [net-next PATCH v10 5/6] octeontx2-af: CN20K mbox implementation for AF's VF
From: Paolo Abeni <pabeni@redhat.com>
Date: 2025-02-20 12:06:17
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lkml
On 2/17/25 9:52 AM, Sai Krishna wrote:
quoted hunk ↗ jump to hunk
@@ -61,3 +62,49 @@ irqreturn_t cn20k_pfaf_mbox_intr_handler(int irq, void *pf_irq) return IRQ_HANDLED; } + +irqreturn_t cn20k_vfaf_mbox_intr_handler(int irq, void *vf_irq) +{ + struct otx2_nic *vf = vf_irq; + struct otx2_mbox_dev *mdev; + struct otx2_mbox *mbox; + struct mbox_hdr *hdr; + int vf_trig_val; + + vf_trig_val = otx2_read64(vf, RVU_VF_INT) & 0x3; + /* Clear the IRQ */ + otx2_write64(vf, RVU_VF_INT, vf_trig_val); + + /* Read latest mbox data */ + smp_rmb(); + + if (vf_trig_val & BIT_ULL(1)) {
`vf_trig_val` has `int` type, why are casting the mask to unsigned long long? A similar thing below. /P