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qlcnic: Mailbox refactoring

PATCH In review Himanshu Madhani 2 participants 7 messages Aug 2, 2013

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#0 lore raw

v3 cover qlcnic: Mailbox refactoring

From: Himanshu Madhani <[email protected]>

This series contains following patches

o in v2 series, we received feedback on return codes to use standard error codes instead of mixing custom error codes. We have modified patch for loopback diagnostic test to return standard error codes.

o rest of the 3 patches in the series are for mailbox refactoring

Current driver-firmware mailbox interface was operating in polling mode because of some limitations with the earlier versions of 83xx adapter firmware. These issues are resolved now and we are implementing the mailbox interface in interrupt mode.

There are three patches which refactors mailbox handling:
* Interrupt mode mailbox implantation.
* Replace poll mode mailbox interfaces with interrupt mode interfaces.
* Operate mailbox in poll mode when interrupts are not available.

changes from v2 -> v3
* Addressed review feedback to use standard return codes for loopback diagnostic test.

Please consider applying these patches to net-next.

Thanks,
Himanshu

Himanshu Madhani (1):
qlcnic: Update version to 5.2.45

Jitendra Kalsaria (1):
qlcnic: Enhance diagnostic loopback error codes.

Manish Chopra (3):
qlcnic: Interrupt based driver firmware mailbox mechanism
qlcnic: Replace poll mode mailbox interface with interrupt based
mailbox interface
qlcnic: Enable mailbox interface in poll mode when interrupts are not
available

 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  59 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    | 615 +++++++++++++++------
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |  27 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  |  83 ++-
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    |   6 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c     |   6 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   |  18 +-
 .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c   | 146 ++---
 8 files changed, 651 insertions(+), 309 deletions(-)
Signature · 1 line
1.8.1.4
#1 lore raw

PATCH v3 1/5 qlcnic: Enhance diagnostic loopback error codes.

From: Jitendra Kalsaria <[email protected]>

o Enhanced the driver to use standard Linux error codes
o Return a unique error code to indicate loopback is in progress

---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  6 ------
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    | 23 +++++++++++++++-------
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    |  6 +++---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c     |  6 +++---
 4 files changed, 22 insertions(+), 19 deletions(-)
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +0 -6
index b00cf56..aa0e68e 100644
@@ -950,12 +950,6 @@ struct qlcnic_ipaddr {
 #define QLCNIC_READD_AGE	20
 #define QLCNIC_LB_MAX_FILTERS	64
 #define QLCNIC_LB_BUCKET_SIZE	32
-
-/* QLCNIC Driver Error Code */
-#define QLCNIC_FW_NOT_RESPOND		51
-#define QLCNIC_TEST_IN_PROGRESS		52
-#define QLCNIC_UNDEFINED_ERROR		53
-#define QLCNIC_LB_CABLE_NOT_CONN	54
 #define QLCNIC_ILB_MAX_RCV_LOOP	10
 
 struct qlcnic_filter {
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +16 -7
index 0913c62..cda188d 100644
@@ -1652,7 +1652,7 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 	if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
 		netdev_warn(netdev,
 			    "Loopback test not supported in non privileged mode\n");
-		return ret;
+		return -ENOTSUPP;
 	}
 
 	if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
@@ -1686,13 +1686,13 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
 			netdev_info(netdev,
 				    "Device is resetting, free LB test resources\n");
-			ret = -EIO;
+			ret = -EBUSY;
 			goto free_diag_res;
 		}
 		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
 			netdev_info(netdev,
 				    "Firmware didn't sent link up event to loopback request\n");
-			ret = -QLCNIC_FW_NOT_RESPOND;
+			ret = -ETIMEDOUT;
 			qlcnic_83xx_clear_lb_mode(adapter, mode);
 			goto free_diag_res;
 		}
@@ -1729,6 +1729,15 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 		return status;
 
 	config = ahw->port_config;
+
+	/* Check if port is already in loopback mode */
+	if ((config & QLC_83XX_CFG_LOOPBACK_HSS) ||
+	    (config & QLC_83XX_CFG_LOOPBACK_EXT)) {
+		netdev_err(netdev,
+			   "Port already in Loopback mode.\n");
+		return -EINPROGRESS;
+	}
+
 	set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 
 	if (mode == QLCNIC_ILB_MODE)
@@ -1756,14 +1765,14 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 			netdev_info(netdev,
 				    "Device is resetting, free LB test resources\n");
 			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
-			return -EIO;
+			return -EBUSY;
 		}
 		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
 			netdev_err(netdev,
 				   "Did not receive IDC completion AEN\n");
 			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 			qlcnic_83xx_clear_lb_mode(adapter, mode);
-			return -EIO;
+			return -ETIMEDOUT;
 		}
 	} while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
 
@@ -1805,14 +1814,14 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 			netdev_info(netdev,
 				    "Device is resetting, free LB test resources\n");
 			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
-			return -EIO;
+			return -EBUSY;
 		}
 
 		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
 			netdev_err(netdev,
 				   "Did not receive IDC completion AEN\n");
 			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
-			return -EIO;
+			return -ETIMEDOUT;
 		}
 	} while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
 
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c +3 -3
index 700a463..94a728d 100644
@@ -980,9 +980,9 @@ int qlcnic_loopback_test(struct net_device *netdev, u8 mode)
 		msleep(500);
 		qlcnic_process_rcv_ring_diag(sds_ring);
 		if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-			netdev_info(netdev, "firmware didnt respond to loopback"
-				" configure request\n");
-			ret = -QLCNIC_FW_NOT_RESPOND;
+			netdev_info(netdev,
+				    "Firmware didn't sent link up event to loopback request\n");
+			ret = -ETIMEDOUT;
 			goto free_res;
 		} else if (adapter->ahw->diag_cnt) {
 			ret = adapter->ahw->diag_cnt;
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +3 -3
index d3f8797..1994b44 100644
@@ -919,17 +919,17 @@ static void qlcnic_handle_fw_message(int desc_cnt, int index,
 			break;
 		case 1:
 			dev_info(dev, "loopback already in progress\n");
-			adapter->ahw->diag_cnt = -QLCNIC_TEST_IN_PROGRESS;
+			adapter->ahw->diag_cnt = -EINPROGRESS;
 			break;
 		case 2:
 			dev_info(dev, "loopback cable is not connected\n");
-			adapter->ahw->diag_cnt = -QLCNIC_LB_CABLE_NOT_CONN;
+			adapter->ahw->diag_cnt = -ENODEV;
 			break;
 		default:
 			dev_info(dev,
 				 "loopback configure request failed, err %x\n",
 				 ret);
-			adapter->ahw->diag_cnt = -QLCNIC_UNDEFINED_ERROR;
+			adapter->ahw->diag_cnt = -EIO;
 			break;
 		}
 		break;
Signature · 1 line
1.8.1.4
#2 lore raw

PATCH v3 2/5 qlcnic: Interrupt based driver firmware mailbox mechanism

In reply to Himanshu Madhani

From: Manish Chopra <[email protected]>

o Driver firmware mailbox interface was operating in polling mode because of limitations with the earlier versions of 83xx adapter firmware. These issues are resolved and we are implementing interrupt based mailbox mechanism.

o Data structures and API's for interrupt mode mailbox mechanism.

---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  48 +++-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    | 314 ++++++++++++++++++++-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |  25 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  |   4 +-
 .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c   |  18 +-
 5 files changed, 388 insertions(+), 21 deletions(-)
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +44 -4
index aa0e68e..5a49b64 100644
@@ -20,7 +20,6 @@
 #include <linux/tcp.h>
 #include <linux/skbuff.h>
 #include <linux/firmware.h>
-
 #include <linux/ethtool.h>
 #include <linux/mii.h>
 #include <linux/timer.h>
@@ -468,6 +467,7 @@ struct qlcnic_hardware_context {
 	u32 mbox_aen[QLC_83XX_MBX_AEN_CNT];
 	u32 mbox_reg[4];
 	spinlock_t mbx_lock;
+	struct qlcnic_mailbox *mailbox;
 };
 
 struct qlcnic_adapter_stats {
@@ -966,6 +966,21 @@ struct qlcnic_filter_hash {
 	u16 fbucket_size;
 };
 
+/* Mailbox specific data structures */
+struct qlcnic_mailbox {
+	struct workqueue_struct	*work_q;
+	struct qlcnic_adapter	*adapter;
+	struct qlcnic_mbx_ops	*ops;
+	struct work_struct	work;
+	struct completion	completion;
+	struct list_head	cmd_q;
+	unsigned long		status;
+	spinlock_t		queue_lock;	/* Mailbox queue lock */
+	spinlock_t		aen_lock;	/* Mailbox response/AEN lock */
+	atomic_t		rsp_status;
+	u32			num_cmds;
+};
+
 struct qlcnic_adapter {
 	struct qlcnic_hardware_context *ahw;
 	struct qlcnic_recv_context *recv_ctx;
@@ -1379,9 +1394,20 @@ struct _cdrp_cmd {
 };
 
 struct qlcnic_cmd_args {
-	struct _cdrp_cmd req;
-	struct _cdrp_cmd rsp;
-	int op_type;
+	struct completion	completion;
+	struct list_head	list;
+	struct _cdrp_cmd	req;
+	struct _cdrp_cmd	rsp;
+	atomic_t		rsp_status;
+	int			pay_size;
+	u32			rsp_opcode;
+	u32			total_cmds;
+	u32			op_type;
+	u32			type;
+	u32			cmd_op;
+	u32			*hdr;	/* Back channel message header */
+	u32			*pay;	/* Back channel message payload */
+	u8			func_num;
 };
 
 int qlcnic_fw_cmd_get_minidump_temp(struct qlcnic_adapter *adapter);
@@ -1594,6 +1620,20 @@ struct qlcnic_nic_template {
 	int (*resume)(struct qlcnic_adapter *);
 };
 
+struct qlcnic_mbx_ops {
+	int (*enqueue_cmd) (struct qlcnic_adapter *,
+			    struct qlcnic_cmd_args *, unsigned long *);
+	void (*dequeue_cmd) (struct qlcnic_adapter *, struct qlcnic_cmd_args *);
+	void (*decode_resp) (struct qlcnic_adapter *, struct qlcnic_cmd_args *);
+	void (*encode_cmd) (struct qlcnic_adapter *, struct qlcnic_cmd_args *);
+	void (*nofity_fw) (struct qlcnic_adapter *, u8);
+};
+
+int qlcnic_83xx_init_mailbox_work(struct qlcnic_adapter *);
+void qlcnic_83xx_detach_mailbox_work(struct qlcnic_adapter *);
+void qlcnic_83xx_reinit_mbx_work(struct qlcnic_mailbox *mbx);
+void qlcnic_83xx_free_mailbox(struct qlcnic_mailbox *mbx);
+
 /* Adapter hardware abstraction */
 struct qlcnic_hardware_ops {
 	void (*read_crb) (struct qlcnic_adapter *, char *, loff_t, size_t);
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +309 -5

353 lines not on this page · raw message

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h +23 -2
index 2548d14..542b58d 100644
@@ -89,6 +89,13 @@
 
 #define QLC_83XX_MAX_RESET_SEQ_ENTRIES	16
 
+#define QLC_83XX_MBX_POST_BC_OP		0x1
+#define QLC_83XX_MBX_COMPLETION		0x0
+#define QLC_83XX_MBX_REQUEST		0x1
+
+#define QLC_83XX_MBX_TIMEOUT		(5 * HZ)
+#define QLC_83XX_MBX_CMD_LOOP		5000000
+
 /* status descriptor mailbox data
  * @phy_addr_{low|high}: physical address of buffer
  * @sds_ring_size: buffer size
@@ -449,6 +456,20 @@ enum qlcnic_83xx_states {
 #define QLC_83xx_FLASH_MAX_WAIT_USEC		100
 #define QLC_83XX_FLASH_LOCK_TIMEOUT		10000
 
+enum qlc_83xx_mbx_cmd_type {
+	QLC_83XX_MBX_CMD_WAIT = 0,
+	QLC_83XX_MBX_CMD_NO_WAIT,
+	QLC_83XX_MBX_CMD_BUSY_WAIT,
+};
+
+enum qlc_83xx_mbx_response_states {
+	QLC_83XX_MBX_RESPONSE_WAIT = 0,
+	QLC_83XX_MBX_RESPONSE_ARRIVED,
+};
+
+#define QLC_83XX_MBX_RESPONSE_FAILED	0x2
+#define QLC_83XX_MBX_RESPONSE_UNKNOWN	0x3
+
 /* Additional registers in 83xx */
 enum qlc_83xx_ext_regs {
 	QLCNIC_GLOBAL_RESET = 0,
@@ -498,7 +519,7 @@ enum qlc_83xx_ext_regs {
 
 /* 83xx funcitons */
 int qlcnic_83xx_get_fw_version(struct qlcnic_adapter *);
-int qlcnic_83xx_mbx_op(struct qlcnic_adapter *, struct qlcnic_cmd_args *);
+int qlcnic_83xx_issue_cmd(struct qlcnic_adapter *, struct qlcnic_cmd_args *);
 int qlcnic_83xx_setup_intr(struct qlcnic_adapter *, u8);
 void qlcnic_83xx_get_func_no(struct qlcnic_adapter *);
 int qlcnic_83xx_cam_lock(struct qlcnic_adapter *);
@@ -551,7 +572,7 @@ void qlcnic_set_npar_data(struct qlcnic_adapter *, const struct qlcnic_info *,
 void qlcnic_83xx_config_intr_coal(struct qlcnic_adapter *);
 irqreturn_t qlcnic_83xx_handle_aen(int, void *);
 int qlcnic_83xx_get_port_info(struct qlcnic_adapter *);
-void qlcnic_83xx_enable_mbx_intrpt(struct qlcnic_adapter *);
+void qlcnic_83xx_enable_mbx_interrupt(struct qlcnic_adapter *);
 void qlcnic_83xx_disable_mbx_intr(struct qlcnic_adapter *);
 irqreturn_t qlcnic_83xx_clear_legacy_intr(struct qlcnic_adapter *);
 irqreturn_t qlcnic_83xx_intr(int, void *);
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c +2 -2
index f41dfab..0c5110c 100644
@@ -617,7 +617,7 @@ int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
 	if (err)
 		return err;
 
-	qlcnic_83xx_enable_mbx_intrpt(adapter);
+	qlcnic_83xx_enable_mbx_interrupt(adapter);
 
 	if (qlcnic_83xx_configure_opmode(adapter)) {
 		qlcnic_83xx_idc_enter_failed_state(adapter, 1);
@@ -2120,7 +2120,7 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 	/* Initilaize 83xx mailbox spinlock */
 	spin_lock_init(&ahw->mbx_lock);
 
-	set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+	set_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
 	qlcnic_83xx_clear_function_resources(adapter);
 
 	/* register for NIC IDC AEN Events */
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c +10 -8
index 62380ce..d9c6ae5 100644
@@ -33,7 +33,7 @@ static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *, u32);
 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *);
 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *);
 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *);
-static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *,
+static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *,
 				  struct qlcnic_cmd_args *);
 static void qlcnic_sriov_process_bc_cmd(struct work_struct *);
 
@@ -45,7 +45,7 @@ static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = {
 	.get_mac_address		= qlcnic_83xx_get_mac_address,
 	.setup_intr			= qlcnic_83xx_setup_intr,
 	.alloc_mbx_args			= qlcnic_83xx_alloc_mbx_args,
-	.mbx_cmd			= qlcnic_sriov_vf_mbx_op,
+	.mbx_cmd			= qlcnic_sriov_issue_cmd,
 	.get_func_no			= qlcnic_83xx_get_func_no,
 	.api_lock			= qlcnic_83xx_cam_lock,
 	.api_unlock			= qlcnic_83xx_cam_unlock,
@@ -295,7 +295,7 @@ static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr,
 
 	opcode = ((struct qlcnic_bc_hdr *)hdr)->cmd_op;
 
-	if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
+	if (!test_bit(QLC_83XX_MBX_READY, &ahw->idc.status)) {
 		dev_info(&adapter->pdev->dev,
 			 "Mailbox cmd attempted, 0x%x\n", opcode);
 		dev_info(&adapter->pdev->dev, "Mailbox detached\n");
@@ -1083,6 +1083,7 @@ static void qlcnic_sriov_process_bc_cmd(struct work_struct *work)
 	if (test_bit(QLC_BC_VF_FLR, &vf->state))
 		return;
 
+	memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
 	trans = list_first_entry(&vf->rcv_act.wait_list,
 				 struct qlcnic_bc_trans, list);
 	adapter = vf->adapter;
@@ -1232,6 +1233,7 @@ static void qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov *sriov,
 		return;
 	}
 
+	memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
 	cmd_op = hdr->cmd_op;
 	if (qlcnic_sriov_alloc_bc_trans(&trans))
 		return;
@@ -1357,7 +1359,7 @@ int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *adapter, u8 enable)
 	if (enable)
 		cmd.req.arg[1] = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7);
 
-	err = qlcnic_83xx_mbx_op(adapter, &cmd);
+	err = qlcnic_83xx_issue_cmd(adapter, &cmd);
 
 	if (err != QLCNIC_RCODE_SUCCESS) {
 		dev_err(&adapter->pdev->dev,
@@ -1389,7 +1391,7 @@ static int qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter *adapter,
 	return -EIO;
 }
 
-static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *adapter,
+static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter,
 				  struct qlcnic_cmd_args *cmd)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
@@ -1409,7 +1411,7 @@ static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *adapter,
 		goto cleanup_transaction;
 
 retry:
-	if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
+	if (!test_bit(QLC_83XX_MBX_READY, &ahw->idc.status)) {
 		rsp = -EIO;
 		QLCDB(adapter, DRV, "MBX not Ready!(cmd 0x%x) for VF 0x%x\n",
 		      QLCNIC_MBX_RSP(cmd->req.arg[0]), func);
@@ -1612,7 +1614,7 @@ static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter)
 	int err;
 
 	set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
-	qlcnic_83xx_enable_mbx_intrpt(adapter);
+	qlcnic_83xx_enable_mbx_interrupt(adapter);
 
 	err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
 	if (err)
@@ -1988,7 +1990,7 @@ int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter)
 	int err;
 
 	set_bit(QLC_83XX_MODULE_LOADED, &idc->status);
-	qlcnic_83xx_enable_mbx_intrpt(adapter);
+	qlcnic_83xx_enable_mbx_interrupt(adapter);
 	err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
 	if (err)
 		return err;
Signature · 1 line
1.8.1.4
#3 lore raw

PATCH v3 3/5 qlcnic: Replace poll mode mailbox interface with interrupt based mailbox interface

In reply to Himanshu Madhani

From: Manish Chopra <[email protected]>

---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |   1 -
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    | 260 ++++++++++-----------
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |   2 -
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  |  81 +++++--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   |  18 +-
 .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c   | 134 ++++-------
 6 files changed, 232 insertions(+), 264 deletions(-)
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +0 -1
index 5a49b64..cd95442 100644
@@ -466,7 +466,6 @@ struct qlcnic_hardware_context {
 	u32 *ext_reg_tbl;
 	u32 mbox_aen[QLC_83XX_MBX_AEN_CNT];
 	u32 mbox_reg[4];
-	spinlock_t mbx_lock;
 	struct qlcnic_mailbox *mailbox;
 };
 
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +123 -137

389 lines not on this page · raw message

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h +0 -2
index 542b58d..9993705 100644
@@ -644,8 +644,6 @@ int qlcnic_83xx_set_led(struct net_device *, enum ethtool_phys_id_state);
 int qlcnic_83xx_flash_test(struct qlcnic_adapter *);
 int qlcnic_83xx_enable_flash_write(struct qlcnic_adapter *);
 int qlcnic_83xx_disable_flash_write(struct qlcnic_adapter *);
-u32 qlcnic_83xx_mac_rcode(struct qlcnic_adapter *);
-u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *, u32 *);
 void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *);
 void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *);
 void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *);
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c +61 -20

172 lines not on this page · raw message

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +8 -10
index 4528f8e..cdc24e4 100644
@@ -2141,16 +2141,12 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_warn(&pdev->dev,
 			 "83xx adapter do not support MSI interrupts\n");
 
-	err = qlcnic_setup_intr(adapter, 0);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to setup interrupt\n");
-		goto err_out_disable_msi;
-	}
-
-	if (qlcnic_83xx_check(adapter)) {
-		err = qlcnic_83xx_setup_mbx_intr(adapter);
-		if (err)
+	if (qlcnic_82xx_check(adapter)) {
+		err = qlcnic_setup_intr(adapter, 0);
+		if (err) {
+			dev_err(&pdev->dev, "Failed to setup interrupt\n");
 			goto err_out_disable_msi;
+		}
 	}
 
 	err = qlcnic_get_act_pci_func(adapter);
@@ -2237,9 +2233,11 @@ static void qlcnic_remove(struct pci_dev *pdev)
 	qlcnic_sriov_cleanup(adapter);
 
 	if (qlcnic_83xx_check(adapter)) {
-		qlcnic_83xx_free_mbx_intr(adapter);
 		qlcnic_83xx_register_nic_idc_func(adapter, 0);
 		cancel_delayed_work_sync(&adapter->idc_aen_work);
+		qlcnic_83xx_free_mbx_intr(adapter);
+		qlcnic_83xx_detach_mailbox_work(adapter);
+		qlcnic_83xx_free_mailbox(ahw->mailbox);
 	}
 
 	qlcnic_detach(adapter);
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c +40 -94

226 lines not on this page · raw message

Signature · 1 line
1.8.1.4
#4 lore raw

PATCH v3 4/5 qlcnic: Enable mailbox interface in poll mode when interrupts are not available

In reply to Himanshu Madhani

From: Manish Chopra <[email protected]>

---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +11 -7
index 1eeeed8..948ab72 100644
@@ -945,6 +945,7 @@ void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *adapter)
 		return;
 
 	INIT_DELAYED_WORK(&adapter->mbx_poll_work, qlcnic_83xx_mbx_poll_work);
+	queue_delayed_work(adapter->qlcnic_wq, &adapter->mbx_poll_work, 0);
 }
 
 void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *adapter)
@@ -1331,8 +1332,10 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
 
 	if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
 		/* disable and free mailbox interrupt */
-		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
+		if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
+			qlcnic_83xx_enable_mbx_poll(adapter);
 			qlcnic_83xx_free_mbx_intr(adapter);
+		}
 		adapter->ahw->loopback_state = 0;
 		adapter->ahw->hw_ops->setup_link_event(adapter, 1);
 	}
@@ -1353,6 +1356,8 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 		for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 			sds_ring = &adapter->recv_ctx->sds_rings[ring];
 			qlcnic_83xx_disable_intr(adapter, sds_ring);
+			if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
+				qlcnic_83xx_enable_mbx_poll(adapter);
 		}
 	}
 
@@ -1362,6 +1367,7 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 	if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
 		if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 			err = qlcnic_83xx_setup_mbx_intr(adapter);
+			qlcnic_83xx_disable_mbx_poll(adapter);
 			if (err) {
 				dev_err(&adapter->pdev->dev,
 					"%s: failed to setup mbx interrupt\n",
@@ -1378,6 +1384,10 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 
 	if (netif_running(netdev))
 		__qlcnic_up(adapter, netdev);
+
+	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST &&
+	    !(adapter->flags & QLCNIC_MSIX_ENABLED))
+		qlcnic_83xx_disable_mbx_poll(adapter);
 out:
 	netif_device_attach(netdev);
 }
@@ -1662,8 +1672,6 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 	/* Poll for link up event before running traffic */
 	do {
 		msleep(QLC_83XX_LB_MSLEEP_COUNT);
-		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
-			qlcnic_83xx_process_aen(adapter);
 
 		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
 			netdev_info(netdev,
@@ -1740,8 +1748,6 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 	/* Wait for Link and IDC Completion AEN */
 	do {
 		msleep(QLC_83XX_LB_MSLEEP_COUNT);
-		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
-			qlcnic_83xx_process_aen(adapter);
 
 		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
 			netdev_info(netdev,
@@ -1789,8 +1795,6 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 	/* Wait for Link and IDC Completion AEN */
 	do {
 		msleep(QLC_83XX_LB_MSLEEP_COUNT);
-		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
-			qlcnic_83xx_process_aen(adapter);
 
 		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
 			netdev_info(netdev,
Signature · 1 line
1.8.1.4
#5 lore raw

PATCH v3 5/5 qlcnic: Update version to 5.2.45

In reply to Himanshu Madhani

From: Himanshu Madhani <[email protected]>

---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +2 -2
index cd95442..eae41bc 100644
@@ -37,8 +37,8 @@
 
 #define _QLCNIC_LINUX_MAJOR 5
 #define _QLCNIC_LINUX_MINOR 2
-#define _QLCNIC_LINUX_SUBVERSION 44
-#define QLCNIC_LINUX_VERSIONID  "5.2.44"
+#define _QLCNIC_LINUX_SUBVERSION 45
+#define QLCNIC_LINUX_VERSIONID  "5.2.45"
 #define QLCNIC_DRV_IDC_VER  0x01
 #define QLCNIC_DRIVER_VERSION  ((_QLCNIC_LINUX_MAJOR << 16) |\
 		 (_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))
Signature · 1 line
1.8.1.4
maintainer
#6 lore raw
In reply to Himanshu Madhani

From: Himanshu Madhani <[email protected]>
Date: Fri, 2 Aug 2013 00:57:38 -0400

Quoted 20 lines

From: Himanshu Madhani <[email protected]>

This series contains following patches

o in v2 series, we received feedback on return codes to use standard error codes instead of mixing custom error codes. We have modified patch for loopback diagnostic test to return standard error codes.

o rest of the 3 patches in the series are for mailbox refactoring

Current driver-firmware mailbox interface was operating in polling mode because of some limitations with the earlier versions of 83xx adapter firmware. These issues are resolved now and we are implementing the mailbox interface in interrupt mode.

There are three patches which refactors mailbox handling:
* Interrupt mode mailbox implantation.
* Replace poll mode mailbox interfaces with interrupt mode interfaces.
* Operate mailbox in poll mode when interrupts are not available.

Quoted 5 lines

changes from v2 -> v3
* Addressed review feedback to use standard return codes for loopback diagnostic test.

Please consider applying these patches to net-next.

Series applied, thanks.