diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index d58581b83c8d..40d840e56256 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -107,6 +107,72 @@ static int mtip_exec_internal_command(struct mtip_port *port, gfp_t atomic, unsigned long timeout); +/* + * This function check_for_surprise_removal is called + * while card is removed from the system and it will + * read the vendor id from the configration space + * + * @pdev Pointer to the pci_dev structure. + * + * return value + * true if device removed, else false + */ +static bool mtip_check_surprise_removal(struct pci_dev *pdev) +{ + u16 vendor_id = 0; + + /* Read the vendorID from the configuration space */ + pci_read_config_word(pdev, 0x00, &vendor_id); + if (vendor_id == 0xFFFF) + return true; /* device removed */ + + return false; /* device present */ +} + +/* + * This function is called for clean the pending command in the + * command slot during the surprise removal of device and return + * error to the upper layer. + * + * @dd Pointer to the DRIVER_DATA structure. + * + * return value + * None + */ +static void mtip_command_cleanup(struct driver_data *dd) +{ + int group = 0, commandslot = 0, commandindex = 0; + struct mtip_cmd *command; + struct mtip_port *port = dd->port; + + for (group = 0; group < 4; group++) { + for (commandslot = 0; commandslot < 32; commandslot++) { + if (!(port->allocated[group] & (1 << commandslot))) + continue; + + commandindex = group << 5 | commandslot; + command = &port->commands[commandindex]; + + if (atomic_read(&command->active) + && (command->async_callback)) { + command->async_callback(command->async_data, + -ENODEV); + command->async_callback = NULL; + command->async_data = NULL; + } + + dma_unmap_sg(&port->dd->pdev->dev, + command->sg, + command->scatter_ents, + command->direction); + } + } + + up(&port->cmd_slot); + + atomic_set(&dd->drv_cleanup_done, true); +} + /* * Obtain an empty command slot. * @@ -166,6 +232,47 @@ static inline void release_slot(struct mtip_port *port, int tag) smp_mb__after_clear_bit(); } +/* + * Reset the HBA (without sleeping) + * + * Just like hba_reset, except does not call sleep, so can be + * run from interrupt/tasklet context. + * + * @dd Pointer to the driver data structure. + * + * return value + * 0 The reset was successful. + * -1 The HBA Reset bit did not clear. + */ +static int hba_reset_nosleep(struct driver_data *dd) +{ + unsigned long timeout; + + /* Chip quirk: quiesce any chip function */ + mdelay(10); + + /* Set the reset bit */ + writel(HOST_RESET, dd->mmio + HOST_CTL); + + /* Flush */ + readl(dd->mmio + HOST_CTL); + + /* + * Wait 10ms then spin for up to 1 second + * waiting for reset acknowledgement + */ + timeout = jiffies + msecs_to_jiffies(1000); + mdelay(10); + while ((readl(dd->mmio + HOST_CTL) & HOST_RESET) + && time_before(jiffies, timeout)) + mdelay(1); + + if (readl(dd->mmio + HOST_CTL) & HOST_RESET) + return -1; + + return 0; +} + /* * Issue a command to the hardware. * @@ -194,6 +301,207 @@ static inline void mtip_issue_ncq_command(struct mtip_port *port, int tag) spin_unlock_irqrestore(&port->cmd_issue_lock, flags); } +/* + * Enable/disable the reception of FIS + * + * @port Pointer to the port data structure + * @enable 1 to enable, 0 to disable + * + * return value + * Previous state: 1 enabled, 0 disabled + */ +static int mtip_enable_fis(struct mtip_port *port, int enable) +{ + u32 tmp; + + /* enable FIS reception */ + tmp = readl(port->mmio + PORT_CMD); + if (enable) + writel(tmp | PORT_CMD_FIS_RX, port->mmio + PORT_CMD); + else + writel(tmp & ~PORT_CMD_FIS_RX, port->mmio + PORT_CMD); + + /* Flush */ + readl(port->mmio + PORT_CMD); + + return (((tmp & PORT_CMD_FIS_RX) == PORT_CMD_FIS_RX)); +} + +/* + * Enable/disable the DMA engine + * + * @port Pointer to the port data structure + * @enable 1 to enable, 0 to disable + * + * return value + * Previous state: 1 enabled, 0 disabled. + */ +static int mtip_enable_engine(struct mtip_port *port, int enable) +{ + u32 tmp; + + /* enable FIS reception */ + tmp = readl(port->mmio + PORT_CMD); + if (enable) + writel(tmp | PORT_CMD_START, port->mmio + PORT_CMD); + else + writel(tmp & ~PORT_CMD_START, port->mmio + PORT_CMD); + + readl(port->mmio + PORT_CMD); + return (((tmp & PORT_CMD_START) == PORT_CMD_START)); +} + +/* + * Enables the port DMA engine and FIS reception. + * + * return value + * None + */ +static inline void mtip_start_port(struct mtip_port *port) +{ + /* Enable FIS reception */ + mtip_enable_fis(port, 1); + + /* Enable the DMA engine */ + mtip_enable_engine(port, 1); +} + +/* + * Deinitialize a port by disabling port interrupts, the DMA engine, + * and FIS reception. + * + * @port Pointer to the port structure + * + * return value + * None + */ +static inline void mtip_deinit_port(struct mtip_port *port) +{ + /* Disable interrupts on this port */ + writel(0, port->mmio + PORT_IRQ_MASK); + + /* Disable the DMA engine */ + mtip_enable_engine(port, 0); + + /* Disable FIS reception */ + mtip_enable_fis(port, 0); +} + +/* + * Initialize a port. + * + * This function deinitializes the port by calling mtip_deinit_port() and + * then initializes it by setting the command header and RX FIS addresses, + * clearing the SError register and any pending port interrupts before + * re-enabling the default set of port interrupts. + * + * @port Pointer to the port structure. + * + * return value + * None + */ +static void mtip_init_port(struct mtip_port *port) +{ + int i; + mtip_deinit_port(port); + + /* Program the command list base and FIS base addresses */ + if (readl(port->dd->mmio + HOST_CAP) & HOST_CAP_64) { + writel((port->command_list_dma >> 16) >> 16, + port->mmio + PORT_LST_ADDR_HI); + writel((port->rxfis_dma >> 16) >> 16, + port->mmio + PORT_FIS_ADDR_HI); + } + + writel(port->command_list_dma & 0xffffffff, + port->mmio + PORT_LST_ADDR); + writel(port->rxfis_dma & 0xffffffff, port->mmio + PORT_FIS_ADDR); + + /* Clear SError */ + writel(readl(port->mmio + PORT_SCR_ERR), port->mmio + PORT_SCR_ERR); + + /* reset the completed registers.*/ + for (i = 0; i < port->dd->slot_groups; i++) + writel(0xFFFFFFFF, port->completed[i]); + + /* Clear any pending interrupts for this port */ + writel(readl(port->mmio + PORT_IRQ_STAT), port->mmio + PORT_IRQ_STAT); + + /* Enable port interrupts */ + writel(DEF_PORT_IRQ, port->mmio + PORT_IRQ_MASK); +} + +/* + * Restart a port + * + * @port Pointer to the port data structure. + * + * return value + * None + */ +static void mtip_restart_port(struct mtip_port *port) +{ + unsigned long timeout; + + /* Disable the DMA engine */ + mtip_enable_engine(port, 0); + + /* Chip quirk: wait up to 500ms for PxCMD.CR == 0 */ + timeout = jiffies + msecs_to_jiffies(500); + while ((readl(port->mmio + PORT_CMD) & PORT_CMD_LIST_ON) + && time_before(jiffies, timeout)) + ; + + /* + * Chip quirk: escalate to hba reset if + * PxCMD.CR not clear after 500 ms + */ + if (readl(port->mmio + PORT_CMD) & PORT_CMD_LIST_ON) { + dev_warn(&port->dd->pdev->dev, + "PxCMD.CR not clear, escalating reset\n"); + + if (hba_reset_nosleep(port->dd)) + dev_err(&port->dd->pdev->dev, + "HBA reset escalation failed.\n"); + + /* 30 ms delay before com reset to quiesce chip */ + mdelay(30); + } + + dev_warn(&port->dd->pdev->dev, "Issuing COM reset\n"); + + /* Set PxSCTL.DET */ + writel(readl(port->mmio + PORT_SCR_CTL) | + 1, port->mmio + PORT_SCR_CTL); + readl(port->mmio + PORT_SCR_CTL); + + /* Wait 1 ms to quiesce chip function */ + timeout = jiffies + msecs_to_jiffies(1); + while (time_before(jiffies, timeout)) + ; + + /* Clear PxSCTL.DET */ + writel(readl(port->mmio + PORT_SCR_CTL) & ~1, + port->mmio + PORT_SCR_CTL); + readl(port->mmio + PORT_SCR_CTL); + + /* Wait 500 ms for bit 0 of PORT_SCR_STS to be set */ + timeout = jiffies + msecs_to_jiffies(500); + while (((readl(port->mmio + PORT_SCR_STAT) & 0x01) == 0) + && time_before(jiffies, timeout)) + ; + + if ((readl(port->mmio + PORT_SCR_STAT) & 0x01) == 0) + dev_warn(&port->dd->pdev->dev, + "COM reset failed\n"); + + /* Clear SError, the PxSERR.DIAG.x should be set so clear it */ + writel(readl(port->mmio + PORT_SCR_ERR), port->mmio + PORT_SCR_ERR); + + /* Enable the DMA engine */ + mtip_enable_engine(port, 1); +} + /* * Called periodically to see if any read/write commands are * taking too long to complete. @@ -203,7 +511,7 @@ static inline void mtip_issue_ncq_command(struct mtip_port *port, int tag) * return value * None */ -void mtip_timeout_function(unsigned long int data) +static void mtip_timeout_function(unsigned long int data) { struct mtip_port *port = (struct mtip_port *) data; struct host_to_dev_fis *fis; @@ -377,248 +685,6 @@ static void mtip_completion(struct mtip_port *port, complete(waiting); } -/* - * Enable/disable the reception of FIS - * - * @port Pointer to the port data structure - * @enable 1 to enable, 0 to disable - * - * return value - * Previous state: 1 enabled, 0 disabled - */ -static int mtip_enable_fis(struct mtip_port *port, int enable) -{ - u32 tmp; - - /* enable FIS reception */ - tmp = readl(port->mmio + PORT_CMD); - if (enable) - writel(tmp | PORT_CMD_FIS_RX, port->mmio + PORT_CMD); - else - writel(tmp & ~PORT_CMD_FIS_RX, port->mmio + PORT_CMD); - - /* Flush */ - readl(port->mmio + PORT_CMD); - - return (((tmp & PORT_CMD_FIS_RX) == PORT_CMD_FIS_RX)); -} - -/* - * Enable/disable the DMA engine - * - * @port Pointer to the port data structure - * @enable 1 to enable, 0 to disable - * - * return value - * Previous state: 1 enabled, 0 disabled. - */ -static int mtip_enable_engine(struct mtip_port *port, int enable) -{ - u32 tmp; - - /* enable FIS reception */ - tmp = readl(port->mmio + PORT_CMD); - if (enable) - writel(tmp | PORT_CMD_START, port->mmio + PORT_CMD); - else - writel(tmp & ~PORT_CMD_START, port->mmio + PORT_CMD); - - readl(port->mmio + PORT_CMD); - return (((tmp & PORT_CMD_START) == PORT_CMD_START)); -} - -/* - * Enables the port DMA engine and FIS reception. - * - * return value - * None - */ -static inline void mtip_start_port(struct mtip_port *port) -{ - /* Enable FIS reception */ - mtip_enable_fis(port, 1); - - /* Enable the DMA engine */ - mtip_enable_engine(port, 1); -} - -/* - * Deinitialize a port by disabling port interrupts, the DMA engine, - * and FIS reception. - * - * @port Pointer to the port structure - * - * return value - * None - */ -static inline void mtip_deinit_port(struct mtip_port *port) -{ - /* Disable interrupts on this port */ - writel(0, port->mmio + PORT_IRQ_MASK); - - /* Disable the DMA engine */ - mtip_enable_engine(port, 0); - - /* Disable FIS reception */ - mtip_enable_fis(port, 0); -} - -/* - * Initialize a port. - * - * This function deinitializes the port by calling mtip_deinit_port() and - * then initializes it by setting the command header and RX FIS addresses, - * clearing the SError register and any pending port interrupts before - * re-enabling the default set of port interrupts. - * - * @port Pointer to the port structure. - * - * return value - * None - */ -static void mtip_init_port(struct mtip_port *port) -{ - int i; - mtip_deinit_port(port); - - /* Program the command list base and FIS base addresses */ - if (readl(port->dd->mmio + HOST_CAP) & HOST_CAP_64) { - writel((port->command_list_dma >> 16) >> 16, - port->mmio + PORT_LST_ADDR_HI); - writel((port->rxfis_dma >> 16) >> 16, - port->mmio + PORT_FIS_ADDR_HI); - } - - writel(port->command_list_dma & 0xffffffff, - port->mmio + PORT_LST_ADDR); - writel(port->rxfis_dma & 0xffffffff, port->mmio + PORT_FIS_ADDR); - - /* Clear SError */ - writel(readl(port->mmio + PORT_SCR_ERR), port->mmio + PORT_SCR_ERR); - - /* reset the completed registers.*/ - for (i = 0; i < port->dd->slot_groups; i++) - writel(0xFFFFFFFF, port->completed[i]); - - /* Clear any pending interrupts for this port */ - writel(readl(port->mmio + PORT_IRQ_STAT), port->mmio + PORT_IRQ_STAT); - - /* Enable port interrupts */ - writel(DEF_PORT_IRQ, port->mmio + PORT_IRQ_MASK); -} - -/* - * Reset the HBA (without sleeping) - * - * Just like hba_reset, except does not call sleep, so can be - * run from interrupt/tasklet context. - * - * @dd Pointer to the driver data structure. - * - * return value - * 0 The reset was successful. - * -1 The HBA Reset bit did not clear. - */ -int hba_reset_nosleep(struct driver_data *dd) -{ - unsigned long timeout; - - /* Chip quirk: quiesce any chip function */ - mdelay(10); - - /* Set the reset bit */ - writel(HOST_RESET, dd->mmio + HOST_CTL); - - /* Flush */ - readl(dd->mmio + HOST_CTL); - - /* - * Wait 10ms then spin for up to 1 second - * waiting for reset acknowledgement - */ - timeout = jiffies + msecs_to_jiffies(1000); - mdelay(10); - while ((readl(dd->mmio + HOST_CTL) & HOST_RESET) - && time_before(jiffies, timeout)) - mdelay(1); - - if (readl(dd->mmio + HOST_CTL) & HOST_RESET) - return -1; - - return 0; -} - -/* - * Restart a port - * - * @port Pointer to the port data structure. - * - * return value - * None - */ -void mtip_restart_port(struct mtip_port *port) -{ - unsigned long timeout; - - /* Disable the DMA engine */ - mtip_enable_engine(port, 0); - - /* Chip quirk: wait up to 500ms for PxCMD.CR == 0 */ - timeout = jiffies + msecs_to_jiffies(500); - while ((readl(port->mmio + PORT_CMD) & PORT_CMD_LIST_ON) - && time_before(jiffies, timeout)) - ; - - /* - * Chip quirk: escalate to hba reset if - * PxCMD.CR not clear after 500 ms - */ - if (readl(port->mmio + PORT_CMD) & PORT_CMD_LIST_ON) { - dev_warn(&port->dd->pdev->dev, - "PxCMD.CR not clear, escalating reset\n"); - - if (hba_reset_nosleep(port->dd)) - dev_err(&port->dd->pdev->dev, - "HBA reset escalation failed.\n"); - - /* 30 ms delay before com reset to quiesce chip */ - mdelay(30); - } - - dev_warn(&port->dd->pdev->dev, "Issuing COM reset\n"); - - /* Set PxSCTL.DET */ - writel(readl(port->mmio + PORT_SCR_CTL) | - 1, port->mmio + PORT_SCR_CTL); - readl(port->mmio + PORT_SCR_CTL); - - /* Wait 1 ms to quiesce chip function */ - timeout = jiffies + msecs_to_jiffies(1); - while (time_before(jiffies, timeout)) - ; - - /* Clear PxSCTL.DET */ - writel(readl(port->mmio + PORT_SCR_CTL) & ~1, - port->mmio + PORT_SCR_CTL); - readl(port->mmio + PORT_SCR_CTL); - - /* Wait 500 ms for bit 0 of PORT_SCR_STS to be set */ - timeout = jiffies + msecs_to_jiffies(500); - while (((readl(port->mmio + PORT_SCR_STAT) & 0x01) == 0) - && time_before(jiffies, timeout)) - ; - - if ((readl(port->mmio + PORT_SCR_STAT) & 0x01) == 0) - dev_warn(&port->dd->pdev->dev, - "COM reset failed\n"); - - /* Clear SError, the PxSERR.DIAG.x should be set so clear it */ - writel(readl(port->mmio + PORT_SCR_ERR), port->mmio + PORT_SCR_ERR); - - /* Enable the DMA engine */ - mtip_enable_engine(port, 1); -} - /* * Helper function for tag logging */ @@ -1276,7 +1342,7 @@ static int mtip_standby_immediate(struct mtip_port *port) * 1 Capacity was returned successfully. * 0 The identify information is invalid. */ -bool mtip_hw_get_capacity(struct driver_data *dd, sector_t *sectors) +static bool mtip_hw_get_capacity(struct driver_data *dd, sector_t *sectors) { struct mtip_port *port = dd->port; u64 total, raw0, raw1, raw2, raw3; @@ -1423,7 +1489,7 @@ static inline void fill_command_sg(struct driver_data *dd, * return value 0 The command completed successfully. * return value -1 An error occurred while executing the command. */ -int exec_drive_task(struct mtip_port *port, u8 *command) +static int exec_drive_task(struct mtip_port *port, u8 *command) { struct host_to_dev_fis fis; struct host_to_dev_fis *reply = (port->rxfis + RX_FIS_D2H_REG); @@ -1499,8 +1565,8 @@ int exec_drive_task(struct mtip_port *port, u8 *command) * data to the user space buffer. * return value -1 An error occurred while executing the command. */ -int exec_drive_command(struct mtip_port *port, u8 *command, - void __user *user_buffer) +static int exec_drive_command(struct mtip_port *port, u8 *command, + void __user *user_buffer) { struct host_to_dev_fis fis; struct host_to_dev_fis *reply = (port->rxfis + RX_FIS_D2H_REG); @@ -2020,15 +2086,9 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd, * return value * None */ -void mtip_hw_submit_io(struct driver_data *dd, - sector_t start, - int nsect, - int nents, - int tag, - void *callback, - void *data, - int barrier, - int dir) +static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, + int nsect, int nents, int tag, void *callback, + void *data, int barrier, int dir) { struct host_to_dev_fis *fis; struct mtip_port *port = dd->port; @@ -2115,7 +2175,7 @@ void mtip_hw_submit_io(struct driver_data *dd, * return value * None */ -void mtip_hw_release_scatterlist(struct driver_data *dd, int tag) +static void mtip_hw_release_scatterlist(struct driver_data *dd, int tag) { release_slot(dd->port, tag); } @@ -2131,8 +2191,8 @@ void mtip_hw_release_scatterlist(struct driver_data *dd, int tag) * Pointer to the scatter list for the allocated command slot * or NULL if no command slots are available. */ -struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, - int *tag) +static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, + int *tag) { /* * It is possible that, even with this semaphore, a thread @@ -2216,7 +2276,7 @@ static DEVICE_ATTR(registers, S_IRUGO, hw_show_registers, NULL); * 0 Operation completed successfully. * -EINVAL Invalid parameter. */ -int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj) +static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj) { if (!kobj || !dd) return -EINVAL; @@ -2237,7 +2297,7 @@ int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj) * 0 Operation completed successfully. * -EINVAL Invalid parameter. */ -int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) +static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) { if (!kobj || !dd) return -EINVAL; @@ -2385,7 +2445,7 @@ static int mtip_ftl_rebuild_poll(struct driver_data *dd) * return value * 0 on success, else an error code. */ -int mtip_hw_init(struct driver_data *dd) +static int mtip_hw_init(struct driver_data *dd) { int i; int rv; @@ -2586,7 +2646,7 @@ out1: * return value * 0 */ -int mtip_hw_exit(struct driver_data *dd) +static int mtip_hw_exit(struct driver_data *dd) { /* * Send standby immediate (E0h) to the drive so that it @@ -2634,7 +2694,7 @@ int mtip_hw_exit(struct driver_data *dd) * return value * 0 */ -int mtip_hw_shutdown(struct driver_data *dd) +static int mtip_hw_shutdown(struct driver_data *dd) { /* * Send standby immediate (E0h) to the drive so that it @@ -2657,7 +2717,7 @@ int mtip_hw_shutdown(struct driver_data *dd) * 0 Suspend was successful * -EFAULT Suspend was not successful */ -int mtip_hw_suspend(struct driver_data *dd) +static int mtip_hw_suspend(struct driver_data *dd) { /* * Send standby immediate (E0h) to the drive @@ -2689,7 +2749,7 @@ int mtip_hw_suspend(struct driver_data *dd) * 0 Resume was successful * -EFAULT Resume was not successful */ -int mtip_hw_resume(struct driver_data *dd) +static int mtip_hw_resume(struct driver_data *dd) { /* Perform any needed hardware setup steps */ hba_setup(dd); @@ -2715,50 +2775,6 @@ int mtip_hw_resume(struct driver_data *dd) return 0; } -/* - * This function is called for clean the pending command in the - * command slot during the surprise removal of device and return - * error to the upper layer. - * - * @dd Pointer to the DRIVER_DATA structure. - * - * return value - * None - */ -void mtip_command_cleanup(struct driver_data *dd) -{ - int group = 0, commandslot = 0, commandindex = 0; - struct mtip_cmd *command; - struct mtip_port *port = dd->port; - - for (group = 0; group < 4; group++) { - for (commandslot = 0; commandslot < 32; commandslot++) { - if (!(port->allocated[group] & (1 << commandslot))) - continue; - - commandindex = group << 5 | commandslot; - command = &port->commands[commandindex]; - - if (atomic_read(&command->active) - && (command->async_callback)) { - command->async_callback(command->async_data, - -ENODEV); - command->async_callback = NULL; - command->async_data = NULL; - } - - dma_unmap_sg(&port->dd->pdev->dev, - command->sg, - command->scatter_ents, - command->direction); - } - } - - up(&port->cmd_slot); - - atomic_set(&dd->drv_cleanup_done, true); -} - /* * Helper function for reusing disk name * upon hot insertion. @@ -3037,7 +3053,7 @@ static int mtip_make_request(struct request_queue *queue, struct bio *bio) * return value * 0 on success else an error code. */ -int mtip_block_initialize(struct driver_data *dd) +static int mtip_block_initialize(struct driver_data *dd) { int rv = 0; sector_t capacity; @@ -3168,7 +3184,7 @@ protocol_init_error: * return value * 0 */ -int mtip_block_remove(struct driver_data *dd) +static int mtip_block_remove(struct driver_data *dd) { struct kobject *kobj; /* Clean up the sysfs attributes managed by the protocol layer. */ @@ -3205,7 +3221,7 @@ int mtip_block_remove(struct driver_data *dd) * return value * 0 */ -int mtip_block_shutdown(struct driver_data *dd) +static int mtip_block_shutdown(struct driver_data *dd) { dev_info(&dd->pdev->dev, "Shutting down %s ...\n", dd->disk->disk_name); @@ -3220,7 +3236,7 @@ int mtip_block_shutdown(struct driver_data *dd) return 0; } -int mtip_block_suspend(struct driver_data *dd) +static int mtip_block_suspend(struct driver_data *dd) { dev_info(&dd->pdev->dev, "Suspending %s ...\n", dd->disk->disk_name); @@ -3228,7 +3244,7 @@ int mtip_block_suspend(struct driver_data *dd) return 0; } -int mtip_block_resume(struct driver_data *dd) +static int mtip_block_resume(struct driver_data *dd) { dev_info(&dd->pdev->dev, "Resuming %s ...\n", dd->disk->disk_name); @@ -3479,28 +3495,6 @@ static void mtip_pci_shutdown(struct pci_dev *pdev) mtip_block_shutdown(dd); } -/* - * This function check_for_surprise_removal is called - * while card is removed from the system and it will - * read the vendor id from the configration space - * - * @pdev Pointer to the pci_dev structure. - * - * return value - * true if device removed, else false - */ -bool mtip_check_surprise_removal(struct pci_dev *pdev) -{ - u16 vendor_id = 0; - - /* Read the vendorID from the configuration space */ - pci_read_config_word(pdev, 0x00, &vendor_id); - if (vendor_id == 0xFFFF) - return true; /* device removed */ - - return false; /* device present */ -} - /* Table of device ids supported by this driver. */ static DEFINE_PCI_DEVICE_TABLE(mtip_pci_tbl) = { { PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320_DEVICE_ID) }, diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index d6355c6f218f..17be4f444e7d 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -405,37 +405,4 @@ struct driver_data { atomic_t eh_active; /* Flag for error handling tracking */ }; -/* Function declarations */ -extern int mtip_block_initialize(struct driver_data *dd); -extern int mtip_block_remove(struct driver_data *dd); -extern int mtip_block_shutdown(struct driver_data *dd); -extern int mtip_block_suspend(struct driver_data *dd); -extern int mtip_block_resume(struct driver_data *dd); -extern int mtip_hw_init(struct driver_data *dd); -extern int mtip_hw_exit(struct driver_data *dd); -extern int mtip_hw_shutdown(struct driver_data *dd); -extern bool mtip_hw_get_capacity(struct driver_data *dd, sector_t *sectors); -extern void mtip_hw_release_scatterlist( - struct driver_data *dd, - int tag); -extern struct scatterlist *mtip_hw_get_scatterlist( - struct driver_data *dd, - int *tag); -extern void mtip_hw_submit_io(struct driver_data *dd, - sector_t start, - int nsect, - int nents, - int tag, - void *callback, - void *data, - int barrier, - int dir); -extern int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj); -extern int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj); -extern int mtip_hw_resume(struct driver_data *dd); -extern int mtip_hw_suspend(struct driver_data *dd); -void mtip_command_cleanup(struct driver_data *dd); -bool mtip_check_surprise_removal(struct pci_dev *pdev); -void mtip_restart_port(struct mtip_port *port); - #endif