[PATCH 5.4 052/138] ionic: fix up filter locks and debug msgs

From: Greg Kroah-Hartman
Date: Mon Jul 27 2020 - 10:35:38 EST


From: Shannon Nelson <snelson@xxxxxxxxxxx>

[ Upstream commit cbec2153a9a68d011454960ba84887e46e40b37d ]

Add in a couple of forgotten spinlocks and fix up some of
the debug messages around filter management.

Fixes: c1e329ebec8d ("ionic: Add management of rx filters")
Signed-off-by: Shannon Nelson <snelson@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 17 +++++++----------
.../ethernet/pensando/ionic/ionic_rx_filter.c | 5 +++++
2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index d5b0bf54f9610..c00ec9a020973 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -809,8 +809,7 @@ static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr)
if (f)
return 0;

- netdev_dbg(lif->netdev, "rx_filter add ADDR %pM (id %d)\n", addr,
- ctx.comp.rx_filter_add.filter_id);
+ netdev_dbg(lif->netdev, "rx_filter add ADDR %pM\n", addr);

memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN);
err = ionic_adminq_post_wait(lif, &ctx);
@@ -839,6 +838,9 @@ static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr)
return -ENOENT;
}

+ netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n",
+ addr, f->filter_id);
+
ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id);
ionic_rx_filter_free(lif, f);
spin_unlock_bh(&lif->rx_filters.lock);
@@ -847,9 +849,6 @@ static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr)
if (err)
return err;

- netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n", addr,
- ctx.cmd.rx_filter_del.filter_id);
-
return 0;
}

@@ -1291,13 +1290,11 @@ static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
};
int err;

+ netdev_dbg(netdev, "rx_filter add VLAN %d\n", vid);
err = ionic_adminq_post_wait(lif, &ctx);
if (err)
return err;

- netdev_dbg(netdev, "rx_filter add VLAN %d (id %d)\n", vid,
- ctx.comp.rx_filter_add.filter_id);
-
return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx);
}

@@ -1322,8 +1319,8 @@ static int ionic_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
return -ENOENT;
}

- netdev_dbg(netdev, "rx_filter del VLAN %d (id %d)\n", vid,
- le32_to_cpu(ctx.cmd.rx_filter_del.filter_id));
+ netdev_dbg(netdev, "rx_filter del VLAN %d (id %d)\n",
+ vid, f->filter_id);

ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id);
ionic_rx_filter_free(lif, f);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
index 7a093f148ee58..60cb77e2bab4c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
@@ -36,10 +36,12 @@ int ionic_rx_filters_init(struct ionic_lif *lif)

spin_lock_init(&lif->rx_filters.lock);

+ spin_lock_bh(&lif->rx_filters.lock);
for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
INIT_HLIST_HEAD(&lif->rx_filters.by_hash[i]);
INIT_HLIST_HEAD(&lif->rx_filters.by_id[i]);
}
+ spin_unlock_bh(&lif->rx_filters.lock);

return 0;
}
@@ -51,11 +53,13 @@ void ionic_rx_filters_deinit(struct ionic_lif *lif)
struct hlist_node *tmp;
unsigned int i;

+ spin_lock_bh(&lif->rx_filters.lock);
for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
head = &lif->rx_filters.by_id[i];
hlist_for_each_entry_safe(f, tmp, head, by_id)
ionic_rx_filter_free(lif, f);
}
+ spin_unlock_bh(&lif->rx_filters.lock);
}

int ionic_rx_filter_save(struct ionic_lif *lif, u32 flow_id, u16 rxq_index,
@@ -91,6 +95,7 @@ int ionic_rx_filter_save(struct ionic_lif *lif, u32 flow_id, u16 rxq_index,
f->filter_id = le32_to_cpu(ctx->comp.rx_filter_add.filter_id);
f->rxq_index = rxq_index;
memcpy(&f->cmd, ac, sizeof(f->cmd));
+ netdev_dbg(lif->netdev, "rx_filter add filter_id %d\n", f->filter_id);

INIT_HLIST_NODE(&f->by_hash);
INIT_HLIST_NODE(&f->by_id);
--
2.25.1