[PATCH v2 virtio 3/5] pds_vdpa: clean and reset vqs entries
From: Shannon Nelson <hidden>
Date: 2023-07-11 04:25:07
Also in:
virtualization
Subsystem:
pds dsc virtio data path accelerator, the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Make sure that we initialize the vqs[] entries the same
way both for initial setup and after a vq reset.
Fixes: 151cc834f3dd ("pds_vdpa: add support for vdpa and vdpamgmt interfaces")
Signed-off-by: Shannon Nelson <redacted>
---
drivers/vdpa/pds/vdpa_dev.c | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/vdpa/pds/vdpa_dev.c b/drivers/vdpa/pds/vdpa_dev.c
index 5b566e0eef0a..04a362648b02 100644
--- a/drivers/vdpa/pds/vdpa_dev.c
+++ b/drivers/vdpa/pds/vdpa_dev.c@@ -428,6 +428,17 @@ static void pds_vdpa_set_status(struct vdpa_device *vdpa_dev, u8 status) } } +static void pds_vdpa_init_vqs_entry(struct pds_vdpa_device *pdsv, int qid, + void __iomem *notify) +{ + memset(&pdsv->vqs[qid], 0, sizeof(pdsv->vqs[0])); + pdsv->vqs[qid].qid = qid; + pdsv->vqs[qid].pdsv = pdsv; + pdsv->vqs[qid].ready = false; + pdsv->vqs[qid].irq = VIRTIO_MSI_NO_VECTOR; + pdsv->vqs[qid].notify = notify; +} + static int pds_vdpa_reset(struct vdpa_device *vdpa_dev) { struct pds_vdpa_device *pdsv = vdpa_to_pdsv(vdpa_dev);
@@ -450,8 +461,7 @@ static int pds_vdpa_reset(struct vdpa_device *vdpa_dev) dev_err(dev, "%s: reset_vq failed qid %d: %pe\n", __func__, i, ERR_PTR(err)); pds_vdpa_release_irq(pdsv, i); - memset(&pdsv->vqs[i], 0, sizeof(pdsv->vqs[0])); - pdsv->vqs[i].ready = false; + pds_vdpa_init_vqs_entry(pdsv, i, pdsv->vqs[i].notify); } }
@@ -640,11 +650,11 @@ static int pds_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, pds_vdpa_cmd_set_mac(pdsv, pdsv->mac); for (i = 0; i < pdsv->num_vqs; i++) { - pdsv->vqs[i].qid = i; - pdsv->vqs[i].pdsv = pdsv; - pdsv->vqs[i].irq = VIRTIO_MSI_NO_VECTOR; - pdsv->vqs[i].notify = vp_modern_map_vq_notify(&pdsv->vdpa_aux->vd_mdev, - i, &pdsv->vqs[i].notify_pa); + void __iomem *notify; + + notify = vp_modern_map_vq_notify(&pdsv->vdpa_aux->vd_mdev, + i, &pdsv->vqs[i].notify_pa); + pds_vdpa_init_vqs_entry(pdsv, i, notify); } pdsv->vdpa_dev.mdev = &vdpa_aux->vdpa_mdev;
--
2.17.1