From: Rakesh Babu rsaladi2@marvell.com
[ Upstream commit ffd2f89ad05cd620d822112a07b0c5669fa9e333 ]
Whenever the interface is brought up/down then set_rx_mode function is called by the stack which enables promisc/allmulti MCAM entries. But there are cases when driver brings interface down and then up such as while changing number of channels. In these cases promisc/allmulti MCAM entries are left disabled as set_rx_mode callback is not called. This patch enables these MCAM entries in all such cases.
Signed-off-by: Rakesh Babu rsaladi2@marvell.com Signed-off-by: Subbaraya Sundeep sbhatta@marvell.com Signed-off-by: Sunil Goutham sgoutham@marvell.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- .../ethernet/marvell/octeontx2/nic/otx2_pf.c | 78 ++++++++++--------- 1 file changed, 43 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 53df7fff92c40..53a3e8de1a51e 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -1493,6 +1493,44 @@ static void otx2_free_hw_resources(struct otx2_nic *pf) mutex_unlock(&mbox->lock); }
+static void otx2_do_set_rx_mode(struct otx2_nic *pf) +{ + struct net_device *netdev = pf->netdev; + struct nix_rx_mode *req; + bool promisc = false; + + if (!(netdev->flags & IFF_UP)) + return; + + if ((netdev->flags & IFF_PROMISC) || + (netdev_uc_count(netdev) > OTX2_MAX_UNICAST_FLOWS)) { + promisc = true; + } + + /* Write unicast address to mcam entries or del from mcam */ + if (!promisc && netdev->priv_flags & IFF_UNICAST_FLT) + __dev_uc_sync(netdev, otx2_add_macfilter, otx2_del_macfilter); + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_set_rx_mode(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return; + } + + req->mode = NIX_RX_MODE_UCAST; + + if (promisc) + req->mode |= NIX_RX_MODE_PROMISC; + if (netdev->flags & (IFF_ALLMULTI | IFF_MULTICAST)) + req->mode |= NIX_RX_MODE_ALLMULTI; + + req->mode |= NIX_RX_MODE_USE_MCE; + + otx2_sync_mbox_msg(&pf->mbox); + mutex_unlock(&pf->mbox.lock); +} + int otx2_open(struct net_device *netdev) { struct otx2_nic *pf = netdev_priv(netdev); @@ -1646,6 +1684,8 @@ int otx2_open(struct net_device *netdev) if (err) goto err_tx_stop_queues;
+ otx2_do_set_rx_mode(pf); + return 0;
err_tx_stop_queues: @@ -1791,43 +1831,11 @@ static void otx2_set_rx_mode(struct net_device *netdev) queue_work(pf->otx2_wq, &pf->rx_mode_work); }
-static void otx2_do_set_rx_mode(struct work_struct *work) +static void otx2_rx_mode_wrk_handler(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; - bool promisc = false; - - if (!(netdev->flags & IFF_UP)) - return; - - if ((netdev->flags & IFF_PROMISC) || - (netdev_uc_count(netdev) > OTX2_MAX_UNICAST_FLOWS)) { - promisc = true; - }
- /* Write unicast address to mcam entries or del from mcam */ - if (!promisc && netdev->priv_flags & IFF_UNICAST_FLT) - __dev_uc_sync(netdev, otx2_add_macfilter, otx2_del_macfilter); - - mutex_lock(&pf->mbox.lock); - req = otx2_mbox_alloc_msg_nix_set_rx_mode(&pf->mbox); - if (!req) { - mutex_unlock(&pf->mbox.lock); - return; - } - - req->mode = NIX_RX_MODE_UCAST; - - if (promisc) - req->mode |= NIX_RX_MODE_PROMISC; - if (netdev->flags & (IFF_ALLMULTI | IFF_MULTICAST)) - req->mode |= NIX_RX_MODE_ALLMULTI; - - req->mode |= NIX_RX_MODE_USE_MCE; - - otx2_sync_mbox_msg(&pf->mbox); - mutex_unlock(&pf->mbox.lock); + otx2_do_set_rx_mode(pf); }
static int otx2_set_features(struct net_device *netdev, @@ -2358,7 +2366,7 @@ static int otx2_wq_init(struct otx2_nic *pf) if (!pf->otx2_wq) return -ENOMEM;
- INIT_WORK(&pf->rx_mode_work, otx2_do_set_rx_mode); + INIT_WORK(&pf->rx_mode_work, otx2_rx_mode_wrk_handler); INIT_WORK(&pf->reset_task, otx2_reset_task); return 0; }