From: "Xie, Huawei" <huawei.xie@intel.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Subject: [dpdk-dev] vring_init bug
Date: Wed, 9 Sep 2015 03:00:15 +0000 [thread overview]
Message-ID: <C37D651A908B024F974696C65296B57B2BDC1D8F@SHSMSX101.ccr.corp.intel.com> (raw)
static inline void
vring_init(struct vring *vr, unsigned int num, uint8_t *p,
unsigned long align)
{
vr->num = num;
vr->desc = (struct vring_desc *) p;
vr->avail = (struct vring_avail *) (p +
num * sizeof(struct vring_desc));
vr->used = (void *)
RTE_ALIGN_CEIL((uintptr_t)(&vr->avail->ring[num]), align);
}
There is a bug in vr->used calculation. 2 bytes of used_event_idx isn't
considered. Would submit a fix.
__u16 available[num];
__u16 used_event_idx;
next reply other threads:[~2015-09-09 3:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-09 3:00 Xie, Huawei [this message]
2015-09-09 3:18 ` Ouyang, Changchun
2015-09-09 3:20 ` Xie, Huawei
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