qed: Add NVMeTCP Offload PF Level FW and HW HSI

This patch introduces the NVMeTCP device and PF level HSI and HSI
functionality in order to initialize and interact with the HW device.
The patch also adds qed NVMeTCP personality.

This patch is based on the qede, qedr, qedi, qedf drivers HSI.

Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dean Balandin <dbalandin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 11 deletions

diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 286e53927866..02a4610d9330 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -960,7 +960,8 @@ static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,
 
 	if (test_bit(QED_MF_LL2_NON_UNICAST, &p_hwfn->cdev->mf_bits) &&
 	    p_ramrod->main_func_queue && conn_type != QED_LL2_TYPE_ROCE &&
-	    conn_type != QED_LL2_TYPE_IWARP) {
+	    conn_type != QED_LL2_TYPE_IWARP &&
+		(!QED_IS_NVMETCP_PERSONALITY(p_hwfn))) {
 		p_ramrod->mf_si_bcast_accept_all = 1;
 		p_ramrod->mf_si_mcast_accept_all = 1;
 	} else {
@@ -1047,7 +1048,8 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
 		p_ramrod->conn_type = PROTOCOLID_IWARP;
 		break;
 	case QED_LL2_TYPE_OOO:
-		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
+		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI ||
+		    p_hwfn->hw_info.personality == QED_PCI_NVMETCP)
 			p_ramrod->conn_type = PROTOCOLID_TCP_ULP;
 		else
 			p_ramrod->conn_type = PROTOCOLID_IWARP;
@@ -1634,7 +1636,8 @@ int qed_ll2_establish_connection(void *cxt, u8 connection_handle)
 	if (rc)
 		goto out;
 
-	if (!QED_IS_RDMA_PERSONALITY(p_hwfn))
+	if (!QED_IS_RDMA_PERSONALITY(p_hwfn) &&
+	    !QED_IS_NVMETCP_PERSONALITY(p_hwfn))
 		qed_wr(p_hwfn, p_ptt, PRS_REG_USE_LIGHT_L2, 1);
 
 	qed_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);
@@ -2376,7 +2379,8 @@ out:
 static bool qed_ll2_is_storage_eng1(struct qed_dev *cdev)
 {
 	return (QED_IS_FCOE_PERSONALITY(QED_LEADING_HWFN(cdev)) ||
-		QED_IS_ISCSI_PERSONALITY(QED_LEADING_HWFN(cdev))) &&
+		QED_IS_ISCSI_PERSONALITY(QED_LEADING_HWFN(cdev)) ||
+		QED_IS_NVMETCP_PERSONALITY(QED_LEADING_HWFN(cdev))) &&
 		(QED_AFFIN_HWFN(cdev) != QED_LEADING_HWFN(cdev));
 }
 
@@ -2402,11 +2406,13 @@ static int qed_ll2_stop(struct qed_dev *cdev)
 
 	if (cdev->ll2->handle == QED_LL2_UNUSED_HANDLE)
 		return 0;
+	if (!QED_IS_NVMETCP_PERSONALITY(p_hwfn))
+		qed_llh_remove_mac_filter(cdev, 0, cdev->ll2_mac_address);
 
 	qed_llh_remove_mac_filter(cdev, 0, cdev->ll2_mac_address);
 	eth_zero_addr(cdev->ll2_mac_address);
 
-	if (QED_IS_ISCSI_PERSONALITY(p_hwfn))
+	if (QED_IS_ISCSI_PERSONALITY(p_hwfn) || QED_IS_NVMETCP_PERSONALITY(p_hwfn))
 		qed_ll2_stop_ooo(p_hwfn);
 
 	/* In CMT mode, LL2 is always started on engine 0 for a storage PF */
@@ -2442,6 +2448,7 @@ static int __qed_ll2_start(struct qed_hwfn *p_hwfn,
 		conn_type = QED_LL2_TYPE_FCOE;
 		break;
 	case QED_PCI_ISCSI:
+	case QED_PCI_NVMETCP:
 		conn_type = QED_LL2_TYPE_TCP_ULP;
 		break;
 	case QED_PCI_ETH_ROCE:
@@ -2567,7 +2574,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
 		}
 	}
 
-	if (QED_IS_ISCSI_PERSONALITY(p_hwfn)) {
+	if (QED_IS_ISCSI_PERSONALITY(p_hwfn) || QED_IS_NVMETCP_PERSONALITY(p_hwfn)) {
 		DP_VERBOSE(cdev, QED_MSG_STORAGE, "Starting OOO LL2 queue\n");
 		rc = qed_ll2_start_ooo(p_hwfn, params);
 		if (rc) {
@@ -2576,10 +2583,13 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
 		}
 	}
 
-	rc = qed_llh_add_mac_filter(cdev, 0, params->ll2_mac_address);
-	if (rc) {
-		DP_NOTICE(cdev, "Failed to add an LLH filter\n");
-		goto err3;
+	if (!QED_IS_NVMETCP_PERSONALITY(p_hwfn)) {
+		rc = qed_llh_add_mac_filter(cdev, 0, params->ll2_mac_address);
+		if (rc) {
+			DP_NOTICE(cdev, "Failed to add an LLH filter\n");
+			goto err3;
+		}
+
 	}
 
 	ether_addr_copy(cdev->ll2_mac_address, params->ll2_mac_address);
@@ -2587,7 +2597,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
 	return 0;
 
 err3:
-	if (QED_IS_ISCSI_PERSONALITY(p_hwfn))
+	if (QED_IS_ISCSI_PERSONALITY(p_hwfn) || QED_IS_NVMETCP_PERSONALITY(p_hwfn))
 		qed_ll2_stop_ooo(p_hwfn);
 err2:
 	if (b_is_storage_eng1)