bnx2x: add vlan filtering offload

Current driver always uses vlan-promisc mode, i.e., it receives both
tagged and untagged traffic and lets the network stack drop packets
tagged with unrequested vlan tags.

This patch implements vlan-filtering offload in the driver -
Unless explicitly configured to promisc mode, only untagged packets or
packets tagged with requested vlans would reach the Rx flow.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 28 insertions, 15 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 2011205ec8d4..01f364358e5b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -77,7 +77,10 @@ struct bnx2x_vf_queue {
 
 	/* VLANs object */
 	struct bnx2x_vlan_mac_obj	vlan_obj;
-	atomic_t vlan_count;		/* 0 means vlan-0 is set  ~ untagged */
+
+	/* VLAN-MACs object */
+	struct bnx2x_vlan_mac_obj	vlan_mac_obj;
+
 	unsigned long accept_flags;	/* last accept flags configured */
 
 	/* Queue Slow-path State object */
@@ -105,8 +108,10 @@ struct bnx2x_virtf;
 
 struct bnx2x_vf_mac_vlan_filter {
 	int type;
-#define BNX2X_VF_FILTER_MAC	1
-#define BNX2X_VF_FILTER_VLAN	2
+#define BNX2X_VF_FILTER_MAC	BIT(0)
+#define BNX2X_VF_FILTER_VLAN	BIT(1)
+#define BNX2X_VF_FILTER_VLAN_MAC \
+	(BNX2X_VF_FILTER_MAC | BNX2X_VF_FILTER_VLAN) /*shortcut*/
 
 	bool add;
 	u8 *mac;
@@ -121,14 +126,9 @@ struct bnx2x_vf_mac_vlan_filters {
 /* vf context */
 struct bnx2x_virtf {
 	u16 cfg_flags;
-#define VF_CFG_STATS		0x0001
-#define VF_CFG_FW_FC		0x0002
-#define VF_CFG_TPA		0x0004
-#define VF_CFG_INT_SIMD		0x0008
-#define VF_CACHE_LINE		0x0010
-#define VF_CFG_VLAN		0x0020
-#define VF_CFG_STATS_COALESCE	0x0040
-#define VF_CFG_EXT_BULLETIN	0x0080
+#define VF_CFG_STATS_COALESCE	0x1
+#define VF_CFG_EXT_BULLETIN	0x2
+#define VF_CFG_VLAN_FILTER	0x4
 	u8 link_cfg;		/* IFLA_VF_LINK_STATE_AUTO
 				 * IFLA_VF_LINK_STATE_ENABLE
 				 * IFLA_VF_LINK_STATE_DISABLE
@@ -142,9 +142,8 @@ struct bnx2x_virtf {
 	bool flr_clnup_stage;	/* true during flr cleanup */
 
 	/* dma */
-	dma_addr_t fw_stat_map;		/* valid iff VF_CFG_STATS */
+	dma_addr_t fw_stat_map;
 	u16 stats_stride;
-	dma_addr_t spq_map;
 	dma_addr_t bulletin_map;
 
 	/* Allocated resources counters. Before the VF is acquired, the
@@ -165,8 +164,6 @@ struct bnx2x_virtf {
 #define vf_mac_rules_cnt(vf)		((vf)->alloc_resc.num_mac_filters)
 #define vf_vlan_rules_cnt(vf)		((vf)->alloc_resc.num_vlan_filters)
 #define vf_mc_rules_cnt(vf)		((vf)->alloc_resc.num_mc_filters)
-	/* Hide a single vlan filter credit for the hypervisor */
-#define vf_vlan_rules_visible_cnt(vf)	(vf_vlan_rules_cnt(vf) - 1)
 
 	u8 sb_count;	/* actual number of SBs */
 	u8 igu_base_id;	/* base igu status block id */
@@ -209,6 +206,9 @@ struct bnx2x_virtf {
 	enum channel_tlvs		op_current;
 
 	u8 fp_hsi;
+
+	struct bnx2x_credit_pool_obj	vf_vlans_pool;
+	struct bnx2x_credit_pool_obj	vf_macs_pool;
 };
 
 #define BNX2X_NR_VIRTFN(bp)	((bp)->vfdb->sriov.nr_virtfn)
@@ -232,6 +232,12 @@ struct bnx2x_virtf {
 #define FW_VF_HANDLE(abs_vfid)	\
 	(abs_vfid + FW_PF_MAX_HANDLE)
 
+#define GET_NUM_VFS_PER_PATH(bp)	64 /* use max possible value */
+#define GET_NUM_VFS_PER_PF(bp)		((bp)->vfdb ? (bp)->vfdb->sriov.total \
+						    : 0)
+#define VF_MAC_CREDIT_CNT		1
+#define VF_VLAN_CREDIT_CNT		2 /* VLAN0 + 'real' VLAN */
+
 /* locking and unlocking the channel mutex */
 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
 			      enum channel_tlvs tlv);
@@ -276,6 +282,10 @@ struct bnx2x_vf_sp {
 	} vlan_rdata;
 
 	union {
+		struct eth_classify_rules_ramrod_data	e2;
+	} vlan_mac_rdata;
+
+	union {
 		struct eth_filter_rules_ramrod_data	e2;
 	} rx_mode_rdata;
 
@@ -538,6 +548,7 @@ int bnx2x_iov_link_update_vf(struct bnx2x *bp, int idx);
 
 int bnx2x_set_vf_link_state(struct net_device *dev, int vf, int link_state);
 
+int bnx2x_vfpf_update_vlan(struct bnx2x *bp, u16 vid, u8 vf_qid, bool add);
 #else /* CONFIG_BNX2X_SRIOV */
 
 static inline void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
@@ -606,5 +617,7 @@ struct pf_vf_bulletin_content;
 static inline void bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content *bulletin,
 					      bool support_long) {}
 
+static inline int bnx2x_vfpf_update_vlan(struct bnx2x *bp, u16 vid, u8 vf_qid, bool add) {return 0; }
+
 #endif /* CONFIG_BNX2X_SRIOV */
 #endif /* bnx2x_sriov.h */