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| author | Angus Chen <angus.chen@jaguarmicro.com> | 2022-09-23 17:10:13 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-09-27 18:30:48 -0400 |
| commit | db5db1a00d0816207be3a0166fcb4f523eaf3b52 (patch) | |
| tree | 46cf3685026075732ecae76a573f70514cf75217 /drivers/vdpa | |
| parent | f76349cf41451c5c42a99f18a9163377e4b364ff (diff) | |
| download | linux-stable-db5db1a00d0816207be3a0166fcb4f523eaf3b52.tar.gz linux-stable-db5db1a00d0816207be3a0166fcb4f523eaf3b52.tar.bz2 linux-stable-db5db1a00d0816207be3a0166fcb4f523eaf3b52.zip | |
vdpa/ifcvf: fix the calculation of queuepair
The q_pair_id to address a queue pair in the lm bar should be
calculated by queue_id / 2 rather than queue_id / nr_vring.
Fixes: 2ddae773c93b ("vDPA/ifcvf: detect and use the onboard number of queues directly")
Signed-off-by: Angus Chen <angus.chen@jaguarmicro.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20220923091013.191-1-angus.chen@jaguarmicro.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c index 75a703b803a2..3e4486bfa0b7 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.c +++ b/drivers/vdpa/ifcvf/ifcvf_base.c @@ -323,7 +323,7 @@ u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid) u32 q_pair_id; ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg; - q_pair_id = qid / hw->nr_vring; + q_pair_id = qid / 2; avail_idx_addr = &ifcvf_lm->vring_lm_cfg[q_pair_id].idx_addr[qid % 2]; last_avail_idx = vp_ioread16(avail_idx_addr); @@ -337,7 +337,7 @@ int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num) u32 q_pair_id; ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg; - q_pair_id = qid / hw->nr_vring; + q_pair_id = qid / 2; avail_idx_addr = &ifcvf_lm->vring_lm_cfg[q_pair_id].idx_addr[qid % 2]; hw->vring[qid].last_avail_idx = num; vp_iowrite16(num, avail_idx_addr); |