diff options
Diffstat (limited to 'drivers/scsi/isci')
| -rw-r--r-- | drivers/scsi/isci/host.c | 69 | ||||
| -rw-r--r-- | drivers/scsi/isci/host.h | 15 | ||||
| -rw-r--r-- | drivers/scsi/isci/init.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/isci/isci.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/phy.c | 11 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/port_config.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/registers.h | 122 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_device.c | 24 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_device.h | 9 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.c | 380 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.h | 31 | ||||
| -rw-r--r-- | drivers/scsi/isci/sas.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.c | 29 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.h | 19 |
15 files changed, 522 insertions, 198 deletions
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 6981b77..f07f30f 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1263,6 +1263,10 @@ void isci_host_deinit(struct isci_host *ihost) { int i; + /* disable output data selects */ + for (i = 0; i < isci_gpio_count(ihost); i++) + writel(SGPIO_HW_CONTROL, &ihost->scu_registers->peg0.sgpio.output_data_select[i]); + isci_host_change_state(ihost, isci_stopping); for (i = 0; i < SCI_MAX_PORTS; i++) { struct isci_port *iport = &ihost->ports[i]; @@ -1281,6 +1285,12 @@ void isci_host_deinit(struct isci_host *ihost) spin_unlock_irq(&ihost->scic_lock); wait_for_stop(ihost); + + /* disable sgpio: where the above wait should give time for the + * enclosure to sample the gpios going inactive + */ + writel(0, &ihost->scu_registers->peg0.sgpio.interface_control); + sci_controller_reset(ihost); /* Cancel any/all outstanding port timers */ @@ -2365,6 +2375,12 @@ int isci_host_init(struct isci_host *ihost) for (i = 0; i < SCI_MAX_PHYS; i++) isci_phy_init(&ihost->phys[i], ihost, i); + /* enable sgpio */ + writel(1, &ihost->scu_registers->peg0.sgpio.interface_control); + for (i = 0; i < isci_gpio_count(ihost); i++) + writel(SGPIO_HW_CONTROL, &ihost->scu_registers->peg0.sgpio.output_data_select[i]); + writel(0, &ihost->scu_registers->peg0.sgpio.vendor_specific_code); + for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) { struct isci_remote_device *idev = &ihost->devices[i]; @@ -2760,3 +2776,56 @@ enum sci_task_status sci_controller_start_task(struct isci_host *ihost, return status; } + +static int sci_write_gpio_tx_gp(struct isci_host *ihost, u8 reg_index, u8 reg_count, u8 *write_data) +{ + int d; + + /* no support for TX_GP_CFG */ + if (reg_index == 0) + return -EINVAL; + + for (d = 0; d < isci_gpio_count(ihost); d++) { + u32 val = 0x444; /* all ODx.n clear */ + int i; + + for (i = 0; i < 3; i++) { + int bit = (i << 2) + 2; + + bit = try_test_sas_gpio_gp_bit(to_sas_gpio_od(d, i), + write_data, reg_index, + reg_count); + if (bit < 0) + break; + + /* if od is set, clear the 'invert' bit */ + val &= ~(bit << ((i << 2) + 2)); + } + + if (i < 3) + break; + writel(val, &ihost->scu_registers->peg0.sgpio.output_data_select[d]); + } + + /* unless reg_index is > 1, we should always be able to write at + * least one register + */ + return d > 0; +} + +int isci_gpio_write(struct sas_ha_struct *sas_ha, u8 reg_type, u8 reg_index, + u8 reg_count, u8 *write_data) +{ + struct isci_host *ihost = sas_ha->lldd_ha; + int written; + + switch (reg_type) { + case SAS_GPIO_REG_TX_GP: + written = sci_write_gpio_tx_gp(ihost, reg_index, reg_count, write_data); + break; + default: + written = -EINVAL; + } + + return written; +} diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 9f33831..646051a 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -440,6 +440,18 @@ static inline bool is_c0(struct pci_dev *pdev) return false; } +/* set hw control for 'activity', even though active enclosures seem to drive + * the activity led on their own. Skip setting FSENG control on 'status' due + * to unexpected operation and 'error' due to not being a supported automatic + * FSENG output + */ +#define SGPIO_HW_CONTROL 0x00000443 + +static inline int isci_gpio_count(struct isci_host *ihost) +{ + return ARRAY_SIZE(ihost->scu_registers->peg0.sgpio.output_data_select); +} + void sci_controller_post_request(struct isci_host *ihost, u32 request); void sci_controller_release_frame(struct isci_host *ihost, @@ -542,4 +554,7 @@ void sci_port_configuration_agent_construct( enum sci_status sci_port_configuration_agent_initialize( struct isci_host *ihost, struct sci_port_configuration_agent *port_agent); + +int isci_gpio_write(struct sas_ha_struct *, u8 reg_type, u8 reg_index, + u8 reg_count, u8 *write_data); #endif diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 29aa34e..43fe840 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -192,6 +192,9 @@ static struct sas_domain_function_template isci_transport_ops = { /* Phy management */ .lldd_control_phy = isci_phy_control, + + /* GPIO support */ + .lldd_write_gpio = isci_gpio_write, }; diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index d1de633..8efeb6b 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -97,7 +97,7 @@ #define SCU_MAX_COMPLETION_QUEUE_SHIFT (ilog2(SCU_MAX_COMPLETION_QUEUE_ENTRIES)) #define SCU_ABSOLUTE_MAX_UNSOLICITED_FRAMES (4096) -#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE (1024) +#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE (1024U) #define SCU_INVALID_FRAME_INDEX (0xFFFF) #define SCU_IO_REQUEST_MAX_SGE_SIZE (0x00FFFFFF) diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 09e6113..35f50c2 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -1313,6 +1313,17 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, ret = isci_port_perform_hard_reset(ihost, iport, iphy); break; + case PHY_FUNC_GET_EVENTS: { + struct scu_link_layer_registers __iomem *r; + struct sas_phy *phy = sas_phy->phy; + + r = iphy->link_layer_registers; + phy->running_disparity_error_count = readl(&r->running_disparity_error_count); + phy->loss_of_dword_sync_count = readl(&r->loss_of_sync_error_count); + phy->phy_reset_problem_count = readl(&r->phy_reset_problem_count); + phy->invalid_dword_count = readl(&r->invalid_dword_counter); + break; + } default: dev_dbg(&ihost->pdev->dev, diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 8f6f9b7..8e59c88 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -294,8 +294,8 @@ static void isci_port_link_down(struct isci_host *isci_host, __func__, isci_device); set_bit(IDEV_GONE, &isci_device->flags); } + isci_port_change_state(isci_port, isci_stopping); } - isci_port_change_state(isci_port, isci_stopping); } /* Notify libsas of the borken link, this will trigger calls to our diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index 486b113..38a99d2 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -678,7 +678,7 @@ static void apc_agent_timeout(unsigned long data) configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask; if (!configure_phy_mask) - return; + goto done; for (index = 0; index < SCI_MAX_PHYS; index++) { if ((configure_phy_mask & (1 << index)) == 0) diff --git a/drivers/scsi/isci/registers.h b/drivers/scsi/isci/registers.h index 00afc73..eaa541a 100644 --- a/drivers/scsi/isci/registers.h +++ b/drivers/scsi/isci/registers.h @@ -875,122 +875,6 @@ struct scu_iit_entry { #define SCU_PTSxSR_GEN_BIT(name) \ SCU_GEN_BIT(SCU_PTSG_PORT_TASK_SCHEDULER_STATUS_ ## name) - -/* - * ***************************************************************************** - * * SGPIO Register shift and mask values - * ***************************************************************************** */ -#define SCU_SGPIO_CONTROL_SGPIO_ENABLE_SHIFT (0) -#define SCU_SGPIO_CONTROL_SGPIO_ENABLE_MASK (0x00000001) -#define SCU_SGPIO_CONTROL_SGPIO_SERIAL_CLOCK_SELECT_SHIFT (1) -#define SCU_SGPIO_CONTROL_SGPIO_SERIAL_CLOCK_SELECT_MASK (0x00000002) -#define SCU_SGPIO_CONTROL_SGPIO_SERIAL_SHIFT_WIDTH_SELECT_SHIFT (2) -#define SCU_SGPIO_CONTROL_SGPIO_SERIAL_SHIFT_WIDTH_SELECT_MASK (0x00000004) -#define SCU_SGPIO_CONTROL_SGPIO_TEST_BIT_SHIFT (15) -#define SCU_SGPIO_CONTROL_SGPIO_TEST_BIT_MASK (0x00008000) -#define SCU_SGPIO_CONTROL_SGPIO_RESERVED_MASK (0xFFFF7FF8) - -#define SCU_SGICRx_GEN_BIT(name) \ - SCU_GEN_BIT(SCU_SGPIO_CONTROL_SGPIO_ ## name) - -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R0_SHIFT (0) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R0_MASK (0x0000000F) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R1_SHIFT (4) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R1_MASK (0x000000F0) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R2_SHIFT (8) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R2_MASK (0x00000F00) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R3_SHIFT (12) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_R3_MASK (0x0000F000) -#define SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_RESERVED_MASK (0xFFFF0000) - -#define SCU_SGPBRx_GEN_VAL(name, value) \ - SCU_GEN_VALUE(SCU_SGPIO_PROGRAMMABLE_BLINK_REGISTER_ ## name, value) - -#define SCU_SGPIO_START_DRIVE_LOWER_R0_SHIFT (0) -#define SCU_SGPIO_START_DRIVE_LOWER_R0_MASK (0x00000003) -#define SCU_SGPIO_START_DRIVE_LOWER_R1_SHIFT (4) -#define SCU_SGPIO_START_DRIVE_LOWER_R1_MASK (0x00000030) -#define SCU_SGPIO_START_DRIVE_LOWER_R2_SHIFT (8) -#define SCU_SGPIO_START_DRIVE_LOWER_R2_MASK (0x00000300) -#define SCU_SGPIO_START_DRIVE_LOWER_R3_SHIFT (12) -#define SCU_SGPIO_START_DRIVE_LOWER_R3_MASK (0x00003000) -#define SCU_SGPIO_START_DRIVE_LOWER_RESERVED_MASK (0xFFFF8888) - -#define SCU_SGSDLRx_GEN_VAL(name, value) \ - SCU_GEN_VALUE(SCU_SGPIO_START_DRIVE_LOWER_ ## name, value) - -#define SCU_SGPIO_START_DRIVE_UPPER_R0_SHIFT (0) -#define SCU_SGPIO_START_DRIVE_UPPER_R0_MASK (0x00000003) -#define SCU_SGPIO_START_DRIVE_UPPER_R1_SHIFT (4) -#define SCU_SGPIO_START_DRIVE_UPPER_R1_MASK (0x00000030) -#define SCU_SGPIO_START_DRIVE_UPPER_R2_SHIFT (8) -#define SCU_SGPIO_START_DRIVE_UPPER_R2_MASK (0x00000300) -#define SCU_SGPIO_START_DRIVE_UPPER_R3_SHIFT (12) -#define SCU_SGPIO_START_DRIVE_UPPER_R3_MASK (0x00003000) -#define SCU_SGPIO_START_DRIVE_UPPER_RESERVED_MASK (0xFFFF8888) - -#define SCU_SGSDURx_GEN_VAL(name, value) \ - SCU_GEN_VALUE(SCU_SGPIO_START_DRIVE_LOWER_ ## name, value) - -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D0_SHIFT (0) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D0_MASK (0x00000003) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D1_SHIFT (4) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D1_MASK (0x00000030) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D2_SHIFT (8) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D2_MASK (0x00000300) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D3_SHIFT (12) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_D3_MASK (0x00003000) -#define SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_RESERVED_MASK (0xFFFF8888) - -#define SCU_SGSIDLRx_GEN_VAL(name, value) \ - SCU_GEN_VALUE(SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_ ## name, value) - -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D0_SHIFT (0) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D0_MASK (0x00000003) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D1_SHIFT (4) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D1_MASK (0x00000030) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D2_SHIFT (8) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D2_MASK (0x00000300) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D3_SHIFT (12) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_D3_MASK (0x00003000) -#define SCU_SGPIO_SERIAL_INPUT_DATA_UPPER_RESERVED_MASK (0xFFFF8888) - -#define SCU_SGSIDURx_GEN_VAL(name, value) \ - SCU_GEN_VALUE(SCU_SGPIO_SERIAL_INPUT_DATA_LOWER_ ## name, value) - -#define SCU_SGPIO_VENDOR_SPECIFIC_CODE_SHIFT (0) -#define SCU_SGPIO_VENDOR_SPECIFIC_CODE_MASK (0x0000000F) -#define SCU_SGPIO_VENDOR_SPECIFIC_CODE_RESERVED_MASK (0xFFFFFFF0) - -#define SCU_SGVSCR_GEN_VAL(value) \ - SCU_GEN_VALUE(SCU_SGPIO_VENDOR_SPECIFIC_CODE ## name, value) - -#define SCU_SGPIO_OUPUT_DATA_SELECT_INPUT_DATA0_SHIFT (0) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INPUT_DATA0_MASK (0x00000003) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INVERT_INPUT_DATA0_SHIFT (2) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INVERT_INPUT_DATA0_MASK (0x00000004) -#define SCU_SGPIO_OUPUT_DATA_SELECT_JOG_ENABLE_DATA0_SHIFT (3) -#define SCU_SGPIO_OUPUT_DATA_SELECT_JOG_ENABLE_DATA0_MASK (0x00000008) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INPUT_DATA1_SHIFT (4) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INPUT_DATA1_MASK (0x00000030) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INVERT_INPUT_DATA1_SHIFT (6) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INVERT_INPUT_DATA1_MASK (0x00000040) -#define SCU_SGPIO_OUPUT_DATA_SELECT_JOG_ENABLE_DATA1_SHIFT (7) -#define SCU_SGPIO_OUPUT_DATA_SELECT_JOG_ENABLE_DATA1_MASK (0x00000080) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INPUT_DATA2_SHIFT (8) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INPUT_DATA2_MASK (0x00000300) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INVERT_INPUT_DATA2_SHIFT (10) -#define SCU_SGPIO_OUPUT_DATA_SELECT_INVERT_INPUT_DATA2_MASK (0x00000400) -#define SCU_SGPIO_OUPUT_DATA_SELECT_JOG_ENABLE_DATA2_SHIFT (11) -#define SCU_SGPIO_OUPUT_DATA_SELECT_JOG_ENABLE_DATA2_MASK (0x00000800) -#define SCU_SGPIO_OUPUT_DATA_SELECT_RESERVED_MASK (0xFFFFF000) - -#define SCU_SGODSR_GEN_VAL(name, value) \ - SCU_GEN_VALUE(SCU_SGPIO_OUPUT_DATA_SELECT_ ## name, value) - -#define SCU_SGODSR_GEN_BIT(name) \ - SCU_GEN_BIT(SCU_SGPIO_OUPUT_DATA_SELECT_ ## name) - /* * ***************************************************************************** * * SMU Registers @@ -1529,10 +1413,12 @@ struct scu_sgpio_registers { u32 serial_input_upper; /* 0x0018 SGPIO_SGVSCR */ u32 vendor_specific_code; +/* 0x001C Reserved */ + u32 reserved_001c; /* 0x0020 SGPIO_SGODSR */ - u32 ouput_data_select[8]; + u32 output_data_select[8]; /* Remainder of memory space 256 bytes */ - u32 reserved_1444_14ff[0x31]; + u32 reserved_1444_14ff[0x30]; }; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index b6e6368..fbf9ce2 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -386,6 +386,18 @@ static bool is_remote_device_ready(struct isci_remote_device *idev) } } +/* + * called once the remote node context has transisitioned to a ready + * state (after suspending RX and/or TX due to early D2H fis) + */ +static void atapi_remote_device_resume_done(void *_dev) +{ + struct isci_remote_device *idev = _dev; + struct isci_request *ireq = idev->working_request; + + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); +} + enum sci_status sci_remote_device_event_handler(struct isci_remote_device *idev, u32 event_code) { @@ -432,6 +444,16 @@ enum sci_status sci_remote_device_event_handler(struct isci_remote_device *idev, if (status != SCI_SUCCESS) return status; + if (state == SCI_STP_DEV_ATAPI_ERROR) { + /* For ATAPI error state resume the RNC right away. */ + if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX || + scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) { + return sci_remote_node_context_resume(&idev->rnc, + atapi_remote_device_resume_done, + idev); + } + } + if (state == SCI_STP_DEV_IDLE) { /* We pick up suspension events to handle specifically to this @@ -625,6 +647,7 @@ enum sci_status sci_remote_device_complete_io(struct isci_host *ihost, case SCI_STP_DEV_CMD: case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: + case SCI_STP_DEV_ATAPI_ERROR: status = common_complete_io(iport, idev, ireq); if (status != SCI_SUCCESS) break; @@ -1020,6 +1043,7 @@ static const struct sci_base_state sci_remote_device_state_table[] = { [SCI_STP_DEV_NCQ_ERROR] = { .enter_state = sci_stp_remote_device_ready_ncq_error_substate_enter, }, + [SCI_STP_DEV_ATAPI_ERROR] = { }, [SCI_STP_DEV_AWAIT_RESET] = { }, [SCI_SMP_DEV_IDLE] = { .enter_state = sci_smp_remote_device_ready_idle_substate_enter, diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 57ccfc3..e1747ea 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -244,6 +244,15 @@ enum sci_remote_device_states { SCI_STP_DEV_NCQ_ERROR, /** + * This is the ATAPI error state for the STP ATAPI remote device. + * This state is entered when ATAPI device sends error status FIS + * without data while the device object is in CMD state. + * A suspension event is expected in this state. + * The device object will resume right away. + */ + SCI_STP_DEV_ATAPI_ERROR, + + /** * This is the READY substate indicates the device is waiting for the RESET task * coming to be recovered from certain hardware specific error. */ diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index b5d3a8c..565a9f0 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -481,7 +481,29 @@ static void sci_stp_optimized_request_construct(struct isci_request *ireq, } } +static void sci_atapi_construct(struct isci_request *ireq) +{ + struct host_to_dev_fis *h2d_fis = &ireq->stp.cmd; + struct sas_task *task; + + /* To simplify the implementation we take advantage of the + * silicon's partial acceleration of atapi protocol (dma data + * transfers), so we promote all commands to dma protocol. This + * breaks compatibility with ATA_HORKAGE_ATAPI_MOD16_DMA drives. + */ + h2d_fis->features |= ATAPI_PKT_DMA; + scu_stp_raw_request_construct_task_context(ireq); + + task = isci_request_access_task(ireq); + if (task->data_dir == DMA_NONE) + task->total_xfer_len = 0; + + /* clear the response so we can detect arrivial of an + * unsolicited h2d fis + */ + ireq->stp.rsp.fis_type = 0; +} static enum sci_status sci_io_request_construct_sata(struct isci_request *ireq, @@ -491,6 +513,7 @@ sci_io_request_construct_sata(struct isci_request *ireq, { enum sci_status status = SCI_SUCCESS; struct sas_task *task = isci_request_access_task(ireq); + struct domain_device *dev = ireq->target_device->domain_dev; /* check for management protocols */ if (ireq->ttype == tmf_task) { @@ -519,6 +542,13 @@ sci_io_request_construct_sata(struct isci_request *ireq, } + /* ATAPI */ + if (dev->sata_dev.command_set == ATAPI_COMMAND_SET && + task->ata_task.fis.command == ATA_CMD_PACKET) { + sci_atapi_construct(ireq); + return SCI_SUCCESS; + } + /* non data */ if (task->data_dir == DMA_NONE) { scu_stp_raw_request_construct_task_context(ireq); @@ -627,7 +657,7 @@ enum sci_status sci_task_request_construct_sata(struct isci_request *ireq) /** * sci_req_tx_bytes - bytes transferred when reply underruns request - * @sci_req: request that was terminated early + * @ireq: request that was terminated early */ #define SCU_TASK_CONTEXT_SRAM 0x200000 static u32 sci_req_tx_bytes(struct isci_request *ireq) @@ -729,6 +759,10 @@ sci_io_request_terminate(struct isci_request *ireq) case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED: case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG: case SCI_REQ_STP_SOFT_RESET_WAIT_D2H: + case SCI_REQ_ATAPI_WAIT_H2D: + case SCI_REQ_ATAPI_WAIT_PIO_SETUP: + case SCI_REQ_ATAPI_WAIT_D2H: + case SCI_REQ_ATAPI_WAIT_TC_COMP: sci_change_state(&ireq->sm, SCI_REQ_ABORTING); return SCI_SUCCESS; case SCI_REQ_TASK_WAIT_TC_RESP: @@ -1194,8 +1228,8 @@ static enum sci_status sci_stp_request_pio_data_out_transmit_data(struct isci_re { struct isci_stp_request *stp_req = &ireq->stp.req; struct scu_sgl_element_pair *sgl_pair; + enum sci_status status = SCI_SUCCESS; struct scu_sgl_element *sgl; - enum sci_status status; u32 offset; u32 len = 0; @@ -1249,7 +1283,7 @@ static enum sci_status sci_stp_request_pio_data_out_transmit_data(struct isci_re */ static enum sci_status sci_stp_request_pio_data_in_copy_data_buffer(struct isci_stp_request *stp_req, - u8 *data_buf, u32 len) + u8 *data_buf, u32 len) { struct isci_request *ireq; u8 *src_addr; @@ -1423,6 +1457,128 @@ static enum sci_status sci_stp_request_udma_general_frame_handler(struct isci_re return status; } +static enum sci_status process_unsolicited_fis(struct isci_request *ireq, + u32 frame_index) +{ + struct isci_host *ihost = ireq->owning_controller; + enum sci_status status; + struct dev_to_host_fis *frame_header; + u32 *frame_buffer; + + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, + frame_index, + (void **)&frame_header); + + if (status != SCI_SUCCESS) + return status; + + if (frame_header->fis_type != FIS_REGD2H) { + dev_err(&ireq->isci_host->pdev->dev, + "%s ERROR: invalid fis type 0x%X\n", + __func__, frame_header->fis_type); + return SCI_FAILURE; + } + + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, + frame_index, + (void **)&frame_buffer); + + sci_controller_copy_sata_response(&ireq->stp.rsp, + (u32 *)frame_header, + frame_buffer); + + /* Frame has been decoded return it to the controller */ + sci_controller_release_frame(ihost, frame_index); + + return status; +} + +static enum sci_status atapi_d2h_reg_frame_handler(struct isci_request *ireq, + u32 frame_index) +{ + struct sas_task *task = isci_request_access_task(ireq); + enum sci_status status; + + status = process_unsolicited_fis(ireq, frame_index); + + if (status == SCI_SUCCESS) { + if (ireq->stp.rsp.status & ATA_ERR) + status = SCI_IO_FAILURE_RESPONSE_VALID; + } else { + status = SCI_IO_FAILURE_RESPONSE_VALID; + } + + if (status != SCI_SUCCESS) { + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = status; + } else { + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; + } + + /* the d2h ufi is the end of non-data commands */ + if (task->data_dir == DMA_NONE) + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); + + return status; +} + +static void scu_atapi_reconstruct_raw_frame_task_context(struct isci_request *ireq) +{ + struct ata_device *dev = sas_to_ata_dev(ireq->target_device->domain_dev); + void *atapi_cdb = ireq->ttype_ptr.io_task_ptr->ata_task.atapi_packet; + struct scu_task_context *task_context = ireq->tc; + + /* fill in the SCU Task Context for a DATA fis containing CDB in Raw Frame + * type. The TC for previous Packet fis was already there, we only need to + * change the H2D fis content. + */ + memset(&ireq->stp.cmd, 0, sizeof(struct host_to_dev_fis)); + memcpy(((u8 *)&ireq->stp.cmd + sizeof(u32)), atapi_cdb, ATAPI_CDB_LEN); + memset(&(task_context->type.stp), 0, sizeof(struct stp_task_context)); + task_context->type.stp.fis_type = FIS_DATA; + task_context->transfer_length_bytes = dev->cdb_len; +} + +static void scu_atapi_construct_task_context(struct isci_request *ireq) +{ + struct ata_device *dev = sas_to_ata_dev(ireq->target_device->domain_dev); + struct sas_task *task = isci_request_access_task(ireq); + struct scu_task_context *task_context = ireq->tc; + int cdb_len = dev->cdb_len; + + /* reference: SSTL 1.13.4.2 + * task_type, sata_direction + */ + if (task->data_dir == DMA_TO_DEVICE) { + task_context->task_type = SCU_TASK_TYPE_PACKET_DMA_OUT; + task_context->sata_direction = 0; + } else { + /* todo: for NO_DATA command, we need to send out raw frame. */ + task_context->task_type = SCU_TASK_TYPE_PACKET_DMA_IN; + task_context->sata_direction = 1; + } + + memset(&task_context->type.stp, 0, sizeof(task_context->type.stp)); + task_context->type.stp.fis_type = FIS_DATA; + + memset(&ireq->stp.cmd, 0, sizeof(ireq->stp.cmd)); + memcpy(&ireq->stp.cmd.lbal, task->ata_task.atapi_packet, cdb_len); + task_context->ssp_command_iu_length = cdb_len / sizeof(u32); + + /* task phase is set to TX_CMD */ + task_context->task_phase = 0x1; + + /* retry counter */ + task_context->stp_retry_count = 0; + + /* data transfer size. */ + task_context->transfer_length_bytes = task->total_xfer_len; + + /* setup sgl */ + sci_request_build_sgl(ireq); +} + enum sci_status sci_io_request_frame_handler(struct isci_request *ireq, u32 frame_index) @@ -1490,29 +1646,30 @@ sci_io_request_frame_handler(struct isci_request *ireq, return SCI_SUCCESS; case SCI_REQ_SMP_WAIT_RESP: { - struct smp_resp *rsp_hdr = &ireq->smp.rsp; - void *frame_header; + struct sas_task *task = isci_request_access_task(ireq); + struct scatterlist *sg = &task->smp_task.smp_resp; + void *frame_header, *kaddr; + u8 *rsp; sci_unsolicited_frame_control_get_header(&ihost->uf_control, - frame_index, - &frame_header); - - /* byte swap the header. */ - word_cnt = SMP_RESP_HDR_SZ / sizeof(u32); - sci_swab32_cpy(rsp_hdr, frame_header, word_cnt); + frame_index, + &frame_header); + kaddr = kmap_atomic(sg_page(sg), KM_IRQ0); + rsp = kaddr + sg->offset; + sci_swab32_cpy(rsp, frame_header, 1); - if (rsp_hdr->frame_type == SMP_RESPONSE) { + if (rsp[0] == SMP_RESPONSE) { void *smp_resp; sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, - frame_index, - &smp_resp); - - word_cnt = (sizeof(struct smp_resp) - SMP_RESP_HDR_SZ) / - sizeof(u32); + frame_index, + &smp_resp); - sci_swab32_cpy(((u8 *) rsp_hdr) + SMP_RESP_HDR_SZ, - smp_resp, word_cnt); + word_cnt = (sg->length/4)-1; + if (word_cnt > 0) + word_cnt = min_t(unsigned int, word_cnt, + SCU_UNSOLICITED_FRAME_BUFFER_SIZE/4); + sci_swab32_cpy(rsp + 4, smp_resp, word_cnt); ireq->scu_status = SCU_TASK_DONE_GOOD; ireq->sci_status = SCI_SUCCESS; @@ -1528,12 +1685,13 @@ sci_io_request_frame_handler(struct isci_request *ireq, __func__, ireq, frame_index, - rsp_hdr->frame_type); + rsp[0]); ireq->scu_status = SCU_TASK_DONE_SMP_FRM_TYPE_ERR; ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } + kunmap_atomic(kaddr, KM_IRQ0); sci_controller_release_frame(ihost, frame_index); @@ -1833,6 +1991,24 @@ sci_io_request_frame_handler(struct isci_request *ireq, return status; } + case SCI_REQ_ATAPI_WAIT_PIO_SETUP: { + struct sas_task *task = isci_request_access_task(ireq); + + sci_controller_release_frame(ihost, frame_index); + ireq->target_device->working_request = ireq; + if (task->data_dir == DMA_NONE) { + sci_change_state(&ireq->sm, SCI_REQ_ATAPI_WAIT_TC_COMP); + scu_atapi_reconstruct_raw_frame_task_context(ireq); + } else { + sci_change_state(&ireq->sm, SCI_REQ_ATAPI_WAIT_D2H); + scu_atapi_construct_task_context(ireq); + } + + sci_controller_continue_io(ireq); + return SCI_SUCCESS; + } + case SCI_REQ_ATAPI_WAIT_D2H: + return atapi_d2h_reg_frame_handler(ireq, frame_index); case SCI_REQ_ABORTING: /* * TODO: Is it even possible to get an unsolicited frame in the @@ -1898,10 +2074,9 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_MAX_PLD_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_R_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CMD_LL_R_ERR): - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CRC_ERR): sci_remote_device_suspend(ireq->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); - /* Fall through to the default case */ + /* Fall through to the default case */ default: /* All other completion status cause the IO to be complete. */ ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); @@ -1964,6 +2139,112 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, return SCI_SUCCESS; } +static enum sci_status atapi_raw_completion(struct isci_request *ireq, u32 completion_code, + enum sci_base_request_states next) +{ + enum sci_status status = SCI_SUCCESS; + + switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { + case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; + sci_change_state(&ireq->sm, next); + break; + default: + /* All other completion status cause the IO to be complete. + * If a NAK was received, then it is up to the user to retry + * the request. + */ + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; + + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); + break; + } + + return status; +} + +static enum sci_status atapi_data_tc_completion_handler(struct isci_request *ireq, + u32 completion_code) +{ + struct isci_remote_device *idev = ireq->target_device; + struct dev_to_host_fis *d2h = &ireq->stp.rsp; + enum sci_status status = SCI_SUCCESS; + + switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { + case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); + break; + + case (SCU_TASK_DONE_UNEXP_FIS << SCU_COMPLETION_TL_STATUS_SHIFT): { + u16 len = sci_req_tx_bytes(ireq); + + /* likely non-error data underrrun, workaround missing + * d2h frame from the controller + */ + if (d2h->fis_type != FIS_REGD2H) { + d2h->fis_type = FIS_REGD2H; + d2h->flags = (1 << 6); + d2h->status = 0x50; + d2h->error = 0; + d2h->lbal = 0; + d2h->byte_count_low = len & 0xff; + d2h->byte_count_high = len >> 8; + d2h->device = 0xa0; + d2h->lbal_exp = 0; + d2h->lbam_exp = 0; + d2h->lbah_exp = 0; + d2h->_r_a = 0; + d2h->sector_count = 0x3; + d2h->sector_count_exp = 0; + d2h->_r_b = 0; + d2h->_r_c = 0; + d2h->_r_d = 0; + } + + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS_IO_DONE_EARLY; + status = ireq->sci_status; + + /* the hw will have suspended the rnc, so complete the + * request upon pending resume + */ + sci_change_state(&idev->sm, SCI_STP_DEV_ATAPI_ERROR); + break; + } + case (SCU_TASK_DONE_EXCESS_DATA << SCU_COMPLETION_TL_STATUS_SHIFT): + /* In this case, there is no UF coming after. + * compelte the IO now. + */ + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); + break; + + default: + if (d2h->fis_type == FIS_REGD2H) { + /* UF received change the device state to ATAPI_ERROR */ + status = ireq->sci_status; + sci_change_state(&idev->sm, SCI_STP_DEV_ATAPI_ERROR); + } else { + /* If receiving any non-sucess TC status, no UF + * received yet, then an UF for the status fis + * is coming after (XXX: suspect this is + * actually a protocol error or a bug like the + * DONE_UNEXP_FIS case) + */ + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; + + sci_change_state(&ireq->sm, SCI_REQ_ATAPI_WAIT_D2H); + } + break; + } + + return status; +} + enum sci_status sci_io_request_tc_completion(struct isci_request *ireq, u32 completion_code) @@ -2015,6 +2296,17 @@ sci_io_request_tc_completion(struct isci_request *ireq, return request_aborting_state_tc_event(ireq, completion_code); + case SCI_REQ_ATAPI_WAIT_H2D: + return atapi_raw_completion(ireq, completion_code, + SCI_REQ_ATAPI_WAIT_PIO_SETUP); + + case SCI_REQ_ATAPI_WAIT_TC_COMP: + return atapi_raw_completion(ireq, completion_code, + SCI_REQ_ATAPI_WAIT_D2H); + + case SCI_REQ_ATAPI_WAIT_D2H: + return atapi_data_tc_completion_handler(ireq, completion_code); + default: dev_warn(&ihost->pdev->dev, "%s: SCIC IO Request given task completion " @@ -2421,6 +2713,8 @@ static void isci_process_stp_response(struct sas_task *task, struct dev_to_host_ */ if (fis->status & ATA_DF) ts->stat = SAS_PROTO_RESPONSE; + else if (fis->status & ATA_ERR) + ts->stat = SAM_STAT_CHECK_CONDITION; else ts->stat = SAM_STAT_GOOD; @@ -2603,18 +2897,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost, status = SAM_STAT_GOOD; set_bit(IREQ_COMPLETE_IN_TARGET, &request->flags); - if (task->task_proto == SAS_PROTOCOL_SMP) { - void *rsp = &request->smp.rsp; - - dev_dbg(&ihost->pdev->dev, - "%s: SMP protocol completion\n", - __func__); - - sg_copy_from_buffer( - &task->smp_task.smp_resp, 1, - rsp, sizeof(struct smp_resp)); - } else if (completion_status - == SCI_IO_SUCCESS_IO_DONE_EARLY) { + if (completion_status == SCI_IO_SUCCESS_IO_DONE_EARLY) { /* This was an SSP / STP / SATA transfer. * There is a possibility that less data than @@ -2791,6 +3074,7 @@ static void sci_request_started_state_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); struct domain_device *dev = ireq->target_device->domain_dev; + enum sci_base_request_states state; struct sas_task *task; /* XXX as hch said always creating an internal sas_task for tmf @@ -2802,26 +3086,30 @@ static void sci_request_started_state_enter(struct sci_base_state_machine *sm) * substates */ if (!task && dev->dev_type == SAS_END_DEV) { - sci_change_state(sm, SCI_REQ_TASK_WAIT_TC_COMP); + state = SCI_REQ_TASK_WAIT_TC_COMP; } else if (!task && (isci_request_access_tmf(ireq)->tmf_code == isci_tmf_sata_srst_high || isci_request_access_tmf(ireq)->tmf_code == isci_tmf_sata_srst_low)) { - sci_change_state(sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED); + state = SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED; } else if (task && task->task_proto == SAS_PROTOCOL_SMP) { - sci_change_state(sm, SCI_REQ_SMP_WAIT_RESP); + state = SCI_REQ_SMP_WAIT_RESP; } else if (task && sas_protocol_ata(task->task_proto) && !task->ata_task.use_ncq) { - u32 state; - - if (task->data_dir == DMA_NONE) + if (dev->sata_dev.command_set == ATAPI_COMMAND_SET && + task->ata_task.fis.command == ATA_CMD_PACKET) { + state = SCI_REQ_ATAPI_WAIT_H2D; + } else if (task->data_dir == DMA_NONE) { state = SCI_REQ_STP_NON_DATA_WAIT_H2D; - else if (task->ata_task.dma_xfer) + } else if (task->ata_task.dma_xfer) { state = SCI_REQ_STP_UDMA_WAIT_TC_COMP; - else /* PIO */ + } else /* PIO */ { state = SCI_REQ_STP_PIO_WAIT_H2D; - - sci_change_state(sm, state); + } + } else { + /* SSP or NCQ are fully accelerated, no substates */ + return; } + sci_change_state(sm, state); } static void sci_request_completed_state_enter(struct sci_base_state_machine *sm) @@ -2913,6 +3201,10 @@ static const struct sci_base_state sci_request_state_table[] = { [SCI_REQ_TASK_WAIT_TC_RESP] = { }, [SCI_REQ_SMP_WAIT_RESP] = { }, [SCI_REQ_SMP_WAIT_TC_COMP] = { }, + [SCI_REQ_ATAPI_WAIT_H2D] = { }, + [SCI_REQ_ATAPI_WAIT_PIO_SETUP] = { }, + [SCI_REQ_ATAPI_WAIT_D2H] = { }, + [SCI_REQ_ATAPI_WAIT_TC_COMP] = { }, [SCI_REQ_COMPLETED] = { .enter_state = sci_request_completed_state_enter, }, diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 7a1d5a9..f720b97 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -96,7 +96,6 @@ enum sci_request_protocol { * to wait for another fis or if the transfer is complete. Upon * receipt of a d2h fis this will be the status field of that fis. * @sgl - track pio transfer progress as we iterate through the sgl - * @device_cdb_len - atapi device advertises it's transfer constraints at setup */ struct isci_stp_request { u32 pio_len; @@ -107,7 +106,6 @@ struct isci_stp_request { u8 set; u32 offset; } sgl; - u32 device_cdb_len; }; struct isci_request { @@ -174,9 +172,6 @@ struct isci_request { }; } ssp; struct { - struct smp_resp rsp; - } smp; - struct { struct isci_stp_request req; struct host_to_dev_fis cmd; struct dev_to_host_fis rsp; @@ -252,6 +247,32 @@ enum sci_base_request_states { SCI_REQ_STP_PIO_DATA_OUT, /* + * While in this state the IO request object is waiting for the TC + * completion notification for the H2D Register FIS + */ + SCI_REQ_ATAPI_WAIT_H2D, + + /* + * While in this state the IO request object is waiting for either a + * PIO Setup. + */ + SCI_REQ_ATAPI_WAIT_PIO_SETUP, + + /* + * The non-data IO transit to this state in this state after receiving + * TC completion. While in this state IO request object is waiting for + * D2H status frame as UF. + */ + SCI_REQ_ATAPI_WAIT_D2H, + + /* + * When transmitting raw frames hardware reports task context completion + * after every frame submission, so in the non-accelerated case we need + * to expect the completion for the "cdb" frame. + */ + SCI_REQ_ATAPI_WAIT_TC_COMP, + + /* * The AWAIT_TC_COMPLETION sub-state indicates that the started raw * task management request is waiting for the transmission of the * initial frame (i.e. command, task, etc.). diff --git a/drivers/scsi/isci/sas.h b/drivers/scsi/isci/sas.h index 462b151..dc26b4a 100644 --- a/drivers/scsi/isci/sas.h +++ b/drivers/scsi/isci/sas.h @@ -204,8 +204,6 @@ struct smp_req { u8 req_data[0]; } __packed; -#define SMP_RESP_HDR_SZ 4 - /* * struct sci_sas_address - This structure depicts how a SAS address is * represented by SCI. diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index d6bcdd0..e2d9418 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -1345,29 +1345,6 @@ static void isci_smp_task_done(struct sas_task *task) complete(&task->completion); } -static struct sas_task *isci_alloc_task(void) -{ - struct sas_task *task = kzalloc(sizeof(*task), GFP_KERNEL); - - if (task) { - INIT_LIST_HEAD(&task->list); - spin_lock_init(&task->task_state_lock); - task->task_state_flags = SAS_TASK_STATE_PENDING; - init_timer(&task->timer); - init_completion(&task->completion); - } - - return task; -} - -static void isci_free_task(struct isci_host *ihost, struct sas_task *task) -{ - if (task) { - BUG_ON(!list_empty(&task->list)); - kfree(task); - } -} - static int isci_smp_execute_task(struct isci_host *ihost, struct domain_device *dev, void *req, int req_size, void *resp, int resp_size) @@ -1376,7 +1353,7 @@ static int isci_smp_execute_task(struct isci_host *ihost, struct sas_task *task = NULL; for (retry = 0; retry < 3; retry++) { - task = isci_alloc_task(); + task = sas_alloc_task(GFP_KERNEL); if (!task) return -ENOMEM; @@ -1439,13 +1416,13 @@ static int isci_smp_execute_task(struct isci_host *ihost, SAS_ADDR(dev->sas_addr), task->task_status.resp, task->task_status.stat); - isci_free_task(ihost, task); + sas_free_task(task); task = NULL; } } ex_err: BUG_ON(retry == 3 && task != NULL); - isci_free_task(ihost, task); + sas_free_task(task); return res; } diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index 4a7fa90..15b18d1 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -286,6 +286,25 @@ isci_task_set_completion_status( task->task_status.resp = response; task->task_status.stat = status; + switch (task->task_proto) { + + case SAS_PROTOCOL_SATA: + case SAS_PROTOCOL_STP: + case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: + + if (task_notification_selection + == isci_perform_error_io_completion) { + /* SATA/STP I/O has it's own means of scheduling device + * error handling on the normal path. + */ + task_notification_selection + = isci_perform_normal_io_completion; + } + break; + default: + break; + } + switch (task_notification_selection) { case isci_perform_error_io_completion: |
