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Subject[PATCH 5.4 349/388] net: qede: Disable aRFS for NPAR and 100G
Date
From: Dmitry Bogdanov <dbogdanov@marvell.com>

[ Upstream commit 0367f05885b9f21d062447bd2ba1302ba3cc7392 ]

In some configurations ARFS cannot be used, so disable it if device
is not capable.

Fixes: e4917d46a653 ("qede: Add aRFS support")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/qlogic/qede/qede_filter.c | 3 +++
drivers/net/ethernet/qlogic/qede/qede_main.c | 11 +++++------
2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c
index c8bdbf057d5a2..5041994bf03fb 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
@@ -336,6 +336,9 @@ int qede_alloc_arfs(struct qede_dev *edev)
{
int i;

+ if (!edev->dev_info.common.b_arfs_capable)
+ return -EINVAL;
+
edev->arfs = vzalloc(sizeof(*edev->arfs));
if (!edev->arfs)
return -ENOMEM;
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 2c3d654c84543..ce3e62e73e4cd 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -770,7 +770,7 @@ static void qede_init_ndev(struct qede_dev *edev)
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_TC;

- if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
+ if (edev->dev_info.common.b_arfs_capable)
hw_features |= NETIF_F_NTUPLE;

if (edev->dev_info.common.vxlan_enable ||
@@ -2211,7 +2211,7 @@ static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
qede_vlan_mark_nonconfigured(edev);
edev->ops->fastpath_stop(edev->cdev);

- if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
+ if (edev->dev_info.common.b_arfs_capable) {
qede_poll_for_freeing_arfs_filters(edev);
qede_free_arfs(edev);
}
@@ -2278,10 +2278,9 @@ static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
if (rc)
goto err2;

- if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
- rc = qede_alloc_arfs(edev);
- if (rc)
- DP_NOTICE(edev, "aRFS memory allocation failed\n");
+ if (qede_alloc_arfs(edev)) {
+ edev->ndev->features &= ~NETIF_F_NTUPLE;
+ edev->dev_info.common.b_arfs_capable = false;
}

qede_napi_add_enable(edev);
--
2.25.1


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