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Commit 77bead46 authored by Manish Chopra's avatar Manish Chopra Committed by David S. Miller
Browse files

qlcnic: Loopback Inter Driver Communication AEN handler 



o Loopback initiator function drivers should process loopback time extend AEN.
  These AENs are triggered by the loopback time extend mailbox command
  issued by the target function drivers.

Signed-off-by: default avatarManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: default avatarHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 58945e1b

drivers/net/ethernet/qlogic/qlcnic/qlcnic.h

+1 −0
Original line number Diff line number Diff line
@@ -467,6 +467,7 @@ struct qlcnic_hardware_context { 
	u32 mbox_aen[QLC_83XX_MBX_AEN_CNT];

	u32 mbox_reg[4];

	struct qlcnic_mailbox *mailbox;

	u8 extend_lb_time;

};



struct qlcnic_adapter_stats {

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c

+36 −9
Original line number Diff line number Diff line
@@ -860,9 +860,9 @@ static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter, 


void __qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter)

{

	struct qlcnic_hardware_context *ahw = adapter->ahw;

	u32 event[QLC_83XX_MBX_AEN_CNT];

	int i;

	struct qlcnic_hardware_context *ahw = adapter->ahw;



	for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++)

		event[i] = readl(QLCNIC_MBX_FW(ahw, i));
@@ -882,6 +882,7 @@ void __qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter) 
				   &adapter->idc_aen_work, 0);

		break;

	case QLCNIC_MBX_TIME_EXTEND_EVENT:

		ahw->extend_lb_time = event[1] >> 8 & 0xf;

		break;

	case QLCNIC_MBX_BC_EVENT:

		qlcnic_sriov_handle_bc_event(adapter, event[1]);
@@ -1706,13 +1707,28 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode) 
	return ret;

}



static void qlcnic_extend_lb_idc_cmpltn_wait(struct qlcnic_adapter *adapter,

					     u32 *max_wait_count)

{

	struct qlcnic_hardware_context *ahw = adapter->ahw;

	int temp;



	netdev_info(adapter->netdev, "Recieved loopback IDC time extend event for 0x%x seconds\n",

		    ahw->extend_lb_time);

	temp = ahw->extend_lb_time * 1000;

	*max_wait_count += temp / QLC_83XX_LB_MSLEEP_COUNT;

	ahw->extend_lb_time = 0;

}



int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)

{

	struct qlcnic_hardware_context *ahw = adapter->ahw;

	struct net_device *netdev = adapter->netdev;

	u32 config, max_wait_count;

	int status = 0, loop = 0;

	u32 config;



	ahw->extend_lb_time = 0;

	max_wait_count = QLC_83XX_LB_WAIT_COUNT;

	status = qlcnic_83xx_get_port_config(adapter);

	if (status)

		return status;
@@ -1754,9 +1770,14 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode) 
			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);

			return -EBUSY;

		}

		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {

			netdev_err(netdev,

				   "Did not receive IDC completion AEN\n");



		if (ahw->extend_lb_time)

			qlcnic_extend_lb_idc_cmpltn_wait(adapter,

							 &max_wait_count);



		if (loop++ > max_wait_count) {

			netdev_err(netdev, "%s: Did not receive loopback IDC completion AEN\n",

				   __func__);

			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);

			qlcnic_83xx_clear_lb_mode(adapter, mode);

			return -ETIMEDOUT;
@@ -1771,10 +1792,12 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode) 
int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)

{

	struct qlcnic_hardware_context *ahw = adapter->ahw;

	u32 config = ahw->port_config, max_wait_count;

	struct net_device *netdev = adapter->netdev;

	int status = 0, loop = 0;

	u32 config = ahw->port_config;



	ahw->extend_lb_time = 0;

	max_wait_count = QLC_83XX_LB_WAIT_COUNT;

	set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);

	if (mode == QLCNIC_ILB_MODE)

		ahw->port_config &= ~QLC_83XX_CFG_LOOPBACK_HSS;
@@ -1802,9 +1825,13 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode) 
			return -EBUSY;

		}



		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {

			netdev_err(netdev,

				   "Did not receive IDC completion AEN\n");

		if (ahw->extend_lb_time)

			qlcnic_extend_lb_idc_cmpltn_wait(adapter,

							 &max_wait_count);



		if (loop++ > max_wait_count) {

			netdev_err(netdev, "%s: Did not receive loopback IDC completion AEN\n",

				   __func__);

			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);

			return -ETIMEDOUT;

		}