qed: Add llh ppfid interface and 100g support for offload protocols

This patch refactors the current llh implementation. It exposes a hw
resource called ppfid (port-pfid) and implements an API for configuring
the resource. Default configuration which was used until now limited
the number of filters per PF and did not support engine affinity per
protocol. The new API enables allocating more filter rules per PF and
enables affinitizing protocol packets to a certain engine which
enables full 100g protocol offload support.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qed/qed.h

@@ -140,6 +140,7 @@ struct qed_cxt_mngr;
 struct qed_sb_sp_info;
 struct qed_ll2_info;
 struct qed_mcp_info;
+struct qed_llh_info;
 
 struct qed_rt_data {
 	u32	*init_val;
@@ -741,6 +742,7 @@ struct qed_dev {
 #define QED_DEV_ID_MASK		0xff00
 #define QED_DEV_ID_MASK_BB	0x1600
 #define QED_DEV_ID_MASK_AH	0x8000
+#define QED_IS_E4(dev)  (QED_IS_BB(dev) || QED_IS_AH(dev))
 
 	u16	chip_num;
 #define CHIP_NUM_MASK                   0xffff
@@ -801,6 +803,11 @@ struct qed_dev {
 	u8				num_hwfns;
 	struct qed_hwfn			hwfns[MAX_HWFNS_PER_DEVICE];
 
+	/* Engine affinity */
+	u8				l2_affin_hint;
+	u8				fir_affin;
+	u8				iwarp_affin;
+
 	/* SRIOV */
 	struct qed_hw_sriov_info *p_iov_info;
 #define IS_QED_SRIOV(cdev)              (!!(cdev)->p_iov_info)
@@ -815,6 +822,10 @@ struct qed_dev {
 	/* Recovery */
 	bool recov_in_prog;
 
+	/* LLH info */
+	u8 ppfid_bitmap;
+	struct qed_llh_info *p_llh_info;
+
 	/* Linux specific here */
 	struct  qede_dev		*edev;
 	struct  pci_dev			*pdev;
@@ -904,6 +915,14 @@ void qed_set_fw_mac_addr(__le16 *fw_msb,
 			 __le16 *fw_mid, __le16 *fw_lsb, u8 *mac);
 
 #define QED_LEADING_HWFN(dev)   (&dev->hwfns[0])
+#define QED_IS_CMT(dev)		((dev)->num_hwfns > 1)
+/* Macros for getting the engine-affinitized hwfn (FIR: fcoe,iscsi,roce) */
+#define QED_FIR_AFFIN_HWFN(dev)		(&(dev)->hwfns[dev->fir_affin])
+#define QED_IWARP_AFFIN_HWFN(dev)       (&(dev)->hwfns[dev->iwarp_affin])
+#define QED_AFFIN_HWFN(dev)				   \
+	(QED_IS_IWARP_PERSONALITY(QED_LEADING_HWFN(dev)) ? \
+	 QED_IWARP_AFFIN_HWFN(dev) : QED_FIR_AFFIN_HWFN(dev))
+#define QED_AFFIN_HWFN_IDX(dev) (IS_LEAD_HWFN(QED_AFFIN_HWFN(dev)) ? 0 : 1)
 
 /* Flags for indication of required queues */
 #define PQ_FLAGS_RLS    (BIT(0))
@@ -923,8 +942,6 @@ u16 qed_get_cm_pq_idx_vf(struct qed_hwfn *p_hwfn, u16 vf);
 u16 qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn *p_hwfn, u8 tc);
 u16 qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn *p_hwfn, u8 tc);
 
-#define QED_LEADING_HWFN(dev)   (&dev->hwfns[0])
-
 /* doorbell recovery mechanism */
 void qed_db_recovery_dp(struct qed_hwfn *p_hwfn);
 void qed_db_recovery_execute(struct qed_hwfn *p_hwfn);