[net-next,2/6] qlcnic: Add support to enable capability to extend minidump for iSCSI

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index c6dca5d..a861592 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -924,6 +924,7 @@  struct qlcnic_mac_vlan_list {
 #define QLCNIC_FW_CAPABILITY_SET_DRV_VER	BIT_5
 #define QLCNIC_FW_CAPABILITY_2_BEACON		BIT_7
 #define QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG	BIT_9
+#define QLCNIC_FW_CAPABILITY_2_EXT_ISCSI_DUMP	BIT_13
 
 #define QLCNIC_83XX_FW_CAPAB_ENCAP_RX_OFFLOAD	BIT_0
 #define QLCNIC_83XX_FW_CAPAB_ENCAP_TX_OFFLOAD	BIT_1
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 172192d..5ab3adf 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -119,6 +119,7 @@  static const struct qlcnic_mailbox_metadata qlcnic_83xx_mbx_tbl[] = {
 	{QLCNIC_CMD_DCB_QUERY_CAP, 1, 2},
 	{QLCNIC_CMD_DCB_QUERY_PARAM, 1, 50},
 	{QLCNIC_CMD_SET_INGRESS_ENCAP, 2, 1},
+	{QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP, 4, 1},
 };
 
 const u32 qlcnic_83xx_ext_reg_tbl[] = {
@@ -3514,6 +3515,31 @@  out:
 	qlcnic_free_mbx_args(&cmd);
 }
 
+#define QLCNIC_83XX_ADD_PORT0		BIT_0
+#define QLCNIC_83XX_ADD_PORT1		BIT_1
+#define QLCNIC_83XX_EXTENDED_MEM_SIZE	13 /* In MB */
+int qlcnic_83xx_extend_md_capab(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_cmd_args cmd;
+	int err;
+
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP);
+	if (err)
+		return err;
+
+	cmd.req.arg[1] = (QLCNIC_83XX_ADD_PORT0 | QLCNIC_83XX_ADD_PORT1);
+	cmd.req.arg[2] = QLCNIC_83XX_EXTENDED_MEM_SIZE;
+	cmd.req.arg[3] = QLCNIC_83XX_EXTENDED_MEM_SIZE;
+
+	err = qlcnic_issue_cmd(adapter, &cmd);
+	if (err)
+		dev_err(&adapter->pdev->dev,
+			"failed to issue extend iSCSI minidump capability\n");
+
+	return err;
+}
+
 int qlcnic_83xx_reg_test(struct qlcnic_adapter *adapter)
 {
 	u32 major, minor, sub;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 999a90e..331ae2c 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -627,6 +627,7 @@  int qlcnic_83xx_set_port_eswitch_status(struct qlcnic_adapter *, int, int *);
 
 void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *);
 void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data);
+int qlcnic_83xx_extend_md_capab(struct qlcnic_adapter *);
 int qlcnic_83xx_get_settings(struct qlcnic_adapter *, struct ethtool_cmd *);
 int qlcnic_83xx_set_settings(struct qlcnic_adapter *, struct ethtool_cmd *);
 void qlcnic_83xx_get_pauseparam(struct qlcnic_adapter *,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index cbe2399..4bb33af 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -109,6 +109,7 @@  enum qlcnic_regs {
 #define QLCNIC_CMD_GET_LED_CONFIG		0x6A
 #define QLCNIC_CMD_83XX_SET_DRV_VER		0x6F
 #define QLCNIC_CMD_ADD_RCV_RINGS		0x0B
+#define QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP	0x37
 
 #define QLCNIC_INTRPT_INTX			1
 #define QLCNIC_INTRPT_MSIX			3
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
index 6f33e2d..aca47fd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
@@ -1396,19 +1396,51 @@  int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
+static inline bool
+qlcnic_83xx_md_check_extended_dump_capability(struct qlcnic_adapter *adapter)
+{
+	/* For special adapters (with 0x8830 device ID), where iSCSI firmware
+	 * dump needs to be captured as part of regular firmware dump
+	 * collection process, firmware exports it's capability through
+	 * capability registers
+	 */
+	return ((adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE8830) &&
+		(adapter->ahw->extra_capability[0] &
+		 QLCNIC_FW_CAPABILITY_2_EXT_ISCSI_DUMP));
+}
+
 void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *adapter)
 {
 	u32 prev_version, current_version;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 	struct pci_dev *pdev = adapter->pdev;
+	bool extended = false;
 
 	prev_version = adapter->fw_version;
 	current_version = qlcnic_83xx_get_fw_version(adapter);
 
 	if (fw_dump->tmpl_hdr == NULL || current_version > prev_version) {
 		vfree(fw_dump->tmpl_hdr);
+
+		if (qlcnic_83xx_md_check_extended_dump_capability(adapter))
+			extended = !qlcnic_83xx_extend_md_capab(adapter);
+
 		if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 			dev_info(&pdev->dev, "Supports FW dump capability\n");
+
+		/* Once we have minidump template with extended iSCSI dump
+		 * capability, update the minidump capture mask to 0x1f as
+		 * per FW requirement
+		 */
+		if (extended) {
+			struct qlcnic_83xx_dump_template_hdr *hdr;
+
+			hdr = fw_dump->tmpl_hdr;
+			hdr->drv_cap_mask = 0x1f;
+			fw_dump->cap_mask = 0x1f;
+			dev_info(&pdev->dev,
+				 "Extended iSCSI dump capability and updated capture mask to 0x1f\n");
+		}
 	}
 }