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Merge branch 'octeontx2-pf-Miscellaneous-fixes'

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Sunil Goutham says:

====================
octeontx2-pf: Miscellaneous fixes

This patchset fixes couple of issues related to missing
page refcount updation and taking a mutex lock in atomic
context.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2020-03-25 12:20:00 -07:00
commit 6e22c60480
3 changed files with 30 additions and 2 deletions
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2
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
View File

@ -243,6 +243,8 @@ struct otx2_nic {
struct workqueue_struct *flr_wq;
struct flr_work *flr_wrk;
struct refill_work *refill_wrk;
struct workqueue_struct *otx2_wq;
struct work_struct rx_mode_work;
/* Ethtool stuff */
u32 msg_enable;

29
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
View File

@ -1679,6 +1679,14 @@ static netdev_tx_t otx2_xmit(struct sk_buff *skb, struct net_device *netdev)
static void otx2_set_rx_mode(struct net_device *netdev)
{
struct otx2_nic *pf = netdev_priv(netdev);
queue_work(pf->otx2_wq, &pf->rx_mode_work);
}
static void otx2_do_set_rx_mode(struct work_struct *work)
{
struct otx2_nic *pf = container_of(work, struct otx2_nic, rx_mode_work);
struct net_device *netdev = pf->netdev;
struct nix_rx_mode *req;
if (!(netdev->flags & IFF_UP))
@ -1740,6 +1748,17 @@ static const struct net_device_ops otx2_netdev_ops = {
.ndo_get_stats64 = otx2_get_stats64,
};
static int otx2_wq_init(struct otx2_nic *pf)
{
pf->otx2_wq = create_singlethread_workqueue("otx2_wq");
if (!pf->otx2_wq)
return -ENOMEM;
INIT_WORK(&pf->rx_mode_work, otx2_do_set_rx_mode);
INIT_WORK(&pf->reset_task, otx2_reset_task);
return 0;
}
static int otx2_check_pf_usable(struct otx2_nic *nic)
{
u64 rev;
@ -1924,14 +1943,16 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id)
netdev->min_mtu = OTX2_MIN_MTU;
netdev->max_mtu = OTX2_MAX_MTU;
INIT_WORK(&pf->reset_task, otx2_reset_task);
err = register_netdev(netdev);
if (err) {
dev_err(dev, "Failed to register netdevice\n");
goto err_detach_rsrc;
}
err = otx2_wq_init(pf);
if (err)
goto err_unreg_netdev;
otx2_set_ethtool_ops(netdev);
/* Enable link notifications */
@ -1943,6 +1964,8 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
err_unreg_netdev:
unregister_netdev(netdev);
err_detach_rsrc:
otx2_detach_resources(&pf->mbox);
err_disable_mbox_intr:
@ -2089,6 +2112,8 @@ static void otx2_remove(struct pci_dev *pdev)
unregister_netdev(netdev);
otx2_sriov_disable(pf->pdev);
if (pf->otx2_wq)
destroy_workqueue(pf->otx2_wq);
otx2_detach_resources(&pf->mbox);
otx2_disable_mbox_intr(pf);

1
drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
View File

@ -304,6 +304,7 @@ static int otx2_rx_napi_handler(struct otx2_nic *pfvf,
otx2_aura_freeptr(pfvf, cq->cq_idx, bufptr + OTX2_HEAD_ROOM);
cq->pool_ptrs--;
}
otx2_get_page(cq->rbpool);
return processed_cqe;
}