[PATCH AUTOSEL 4.19 39/97] bnx2x: Remove configured vlans as part of unload sequence.

Sasha Levin
2018-12-26T22:52:16Z

From: Sudarsana Reddy Kalluru <sudarsana.kalluru@cavium.com>

[ Upstream commit 04f05230c5c13b1384f66f5186a68d7499e34622 ]

Vlans are not getting removed when drivers are unloaded. The recent storm
firmware versions had added safeguards against re-configuring an already
configured vlan. As a result, PF inner reload flows (e.g., mtu change)
might trigger an assertion.
This change is going to remove vlans (same as we do for MACs) when doing
a chip cleanup during unload.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/ethernet/broadcom/bnx2x/bnx2x_main.c | 34 +++++++++++++++----
.../net/ethernet/broadcom/bnx2x/bnx2x_sp.h | 4 ++-
2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index b05c1d0f829b..20e5cda6555e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -8462,6 +8462,7 @@ int bnx2x_set_vlan_one(struct bnx2x *bp, u16 vlan,
/* Fill a user request section if needed */
if (!test_bit(RAMROD_CONT, ramrod_flags)) {
ramrod_param.user_req.u.vlan.vlan = vlan;
+ __set_bit(BNX2X_VLAN, &ramrod_param.user_req.vlan_mac_flags);
/* Set the command: ADD or DEL */
if (set)
ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
@@ -8482,6 +8483,27 @@ int bnx2x_set_vlan_one(struct bnx2x *bp, u16 vlan,
return rc;
}

+static int bnx2x_del_all_vlans(struct bnx2x *bp)
+{
+ struct bnx2x_vlan_mac_obj *vlan_obj = &bp->sp_objs[0].vlan_obj;
+ unsigned long ramrod_flags = 0, vlan_flags = 0;
+ struct bnx2x_vlan_entry *vlan;
+ int rc;
+
+ __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
+ __set_bit(BNX2X_VLAN, &vlan_flags);
+ rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_flags, &ramrod_flags);
+ if (rc)
+ return rc;
+
+ /* Mark that hw forgot all entries */
+ list_for_each_entry(vlan, &bp->vlan_reg, link)
+ vlan->hw = false;
+ bp->vlan_cnt = 0;
+
+ return 0;
+}
+
int bnx2x_del_all_macs(struct bnx2x *bp,
struct bnx2x_vlan_mac_obj *mac_obj,
int mac_type, bool wait_for_comp)
@@ -9320,6 +9342,11 @@ void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link)
BNX2X_ERR("Failed to schedule DEL commands for UC MACs list: %d\n",
rc);

+ /* Remove all currently configured VLANs */
+ rc = bnx2x_del_all_vlans(bp);
+ if (rc < 0)
+ BNX2X_ERR("Failed to delete all VLANs\n");
+
/* Disable LLH */
if (!CHIP_IS_E1(bp))
REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
@@ -13016,13 +13043,6 @@ static void bnx2x_vlan_configure(struct bnx2x *bp, bool set_rx_mode)

int bnx2x_vlan_reconfigure_vid(struct bnx2x *bp)
{
- struct bnx2x_vlan_entry *vlan;
-
- /* The hw forgot all entries after reload */
- list_for_each_entry(vlan, &bp->vlan_reg, link)
- vlan->hw = false;
- bp->vlan_cnt = 0;
-
/* Don't set rx mode here. Our caller will do it. */
bnx2x_vlan_configure(bp, false);

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index 0bf2fd470819..7a6e82db4231 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -265,6 +265,7 @@ enum {
BNX2X_ETH_MAC,
BNX2X_ISCSI_ETH_MAC,
BNX2X_NETQ_ETH_MAC,
+ BNX2X_VLAN,
BNX2X_DONT_CONSUME_CAM_CREDIT,
BNX2X_DONT_CONSUME_CAM_CREDIT_DEST,
};
@@ -272,7 +273,8 @@ enum {
#define BNX2X_VLAN_MAC_CMP_MASK (1 << BNX2X_UC_LIST_MAC | \
1 << BNX2X_ETH_MAC | \
1 << BNX2X_ISCSI_ETH_MAC | \
- 1 << BNX2X_NETQ_ETH_MAC)
+ 1 << BNX2X_NETQ_ETH_MAC | \
+ 1 << BNX2X_VLAN)
#define BNX2X_VLAN_MAC_CMP_FLAGS(flags) \
((flags) & BNX2X_VLAN_MAC_CMP_MASK)

--
2.19.1