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bnx2x: Fix accounting of vlan resources among the PFs

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While testing max vlan configuration on the PF, firmware gets
assert as driver was configuring number of vlans more than what
is supported per port/engine, it was figured out that there is an
implicit vlan (hidden default vlan consuming hardware cam entry resource)
which is configured default for all the clients (PF/VFs) on client_init
ramrod by the adapter implicitly, so when allocating resources among the
PFs this implicit vlan should be considered or total vlan entries should
be reduced by one to accommodate that default/implicit vlan entry.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2019-12-23 10:23:09 -08:00 committed by David S. Miller
parent 0444716a5d
commit 5cdc40c782
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
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@ -1536,8 +1536,11 @@ void bnx2x_get_rss_ind_table(struct bnx2x_rss_config_obj *rss_obj,
((MAX_MAC_CREDIT_E2 - GET_NUM_VFS_PER_PATH(bp) * VF_MAC_CREDIT_CNT) / \
func_num + GET_NUM_VFS_PER_PF(bp) * VF_MAC_CREDIT_CNT)
#define BNX2X_VFS_VLAN_CREDIT(bp) \
(GET_NUM_VFS_PER_PATH(bp) * VF_VLAN_CREDIT_CNT)
#define PF_VLAN_CREDIT_E2(bp, func_num) \
((MAX_VLAN_CREDIT_E2 - GET_NUM_VFS_PER_PATH(bp) * VF_VLAN_CREDIT_CNT) /\
((MAX_VLAN_CREDIT_E2 - 1 - BNX2X_VFS_VLAN_CREDIT(bp)) / \
func_num + GET_NUM_VFS_PER_PF(bp) * VF_VLAN_CREDIT_CNT)
#endif /* BNX2X_SP_VERBS */