diff options
Diffstat (limited to 'drivers/block')
30 files changed, 1142 insertions, 1275 deletions
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index ce1fa923c414..459f1bc25a7b 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -2534,8 +2534,8 @@ static bool DAC960_RegisterBlockDevice(DAC960_Controller_T *Controller) blk_queue_bounce_limit(RequestQueue, Controller->BounceBufferLimit); RequestQueue->queuedata = Controller; blk_queue_max_hw_segments(RequestQueue, Controller->DriverScatterGatherLimit); - blk_queue_max_phys_segments(RequestQueue, Controller->DriverScatterGatherLimit); - blk_queue_max_sectors(RequestQueue, Controller->MaxBlocksPerCommand); + blk_queue_max_segments(RequestQueue, Controller->DriverScatterGatherLimit); + blk_queue_max_hw_sectors(RequestQueue, Controller->MaxBlocksPerCommand); disk->queue = RequestQueue; sprintf(disk->disk_name, "rd/c%dd%d", Controller->ControllerNumber, n); disk->major = MajorNumber; @@ -7134,7 +7134,7 @@ static struct DAC960_privdata DAC960_P_privdata = { .MemoryWindowSize = DAC960_PD_RegisterWindowSize, }; -static struct pci_device_id DAC960_id_table[] = { +static const struct pci_device_id DAC960_id_table[] = { { .vendor = PCI_VENDOR_ID_MYLEX, .device = PCI_DEVICE_ID_MYLEX_DAC960_GEM, diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index a5af1d6dda8b..e35cf59cbfde 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -1470,8 +1470,6 @@ repeat: void do_fd_request(struct request_queue * q) { - unsigned long flags; - DPRINT(("do_fd_request for pid %d\n",current->pid)); while( fdc_busy ) sleep_on( &fdc_wait ); fdc_busy = 1; diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 4f688434daf1..c6ddeacb77fd 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -434,7 +434,7 @@ static struct brd_device *brd_alloc(int i) goto out_free_dev; blk_queue_make_request(brd->brd_queue, brd_make_request); blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL); - blk_queue_max_sectors(brd->brd_queue, 1024); + blk_queue_max_hw_sectors(brd->brd_queue, 1024); blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY); disk = brd->brd_disk = alloc_disk(1 << part_shift); diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 9291614ac6b7..9e3af307aae1 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -257,6 +257,79 @@ static inline void removeQ(CommandList_struct *c) hlist_del_init(&c->list); } +static void cciss_free_sg_chain_blocks(SGDescriptor_struct **cmd_sg_list, + int nr_cmds) +{ + int i; + + if (!cmd_sg_list) + return; + for (i = 0; i < nr_cmds; i++) { + kfree(cmd_sg_list[i]); + cmd_sg_list[i] = NULL; + } + kfree(cmd_sg_list); +} + +static SGDescriptor_struct **cciss_allocate_sg_chain_blocks( + ctlr_info_t *h, int chainsize, int nr_cmds) +{ + int j; + SGDescriptor_struct **cmd_sg_list; + + if (chainsize <= 0) + return NULL; + + cmd_sg_list = kmalloc(sizeof(*cmd_sg_list) * nr_cmds, GFP_KERNEL); + if (!cmd_sg_list) + return NULL; + + /* Build up chain blocks for each command */ + for (j = 0; j < nr_cmds; j++) { + /* Need a block of chainsized s/g elements. */ + cmd_sg_list[j] = kmalloc((chainsize * + sizeof(*cmd_sg_list[j])), GFP_KERNEL); + if (!cmd_sg_list[j]) { + dev_err(&h->pdev->dev, "Cannot get memory " + "for s/g chains.\n"); + goto clean; + } + } + return cmd_sg_list; +clean: + cciss_free_sg_chain_blocks(cmd_sg_list, nr_cmds); + return NULL; +} + +static void cciss_unmap_sg_chain_block(ctlr_info_t *h, CommandList_struct *c) +{ + SGDescriptor_struct *chain_sg; + u64bit temp64; + + if (c->Header.SGTotal <= h->max_cmd_sgentries) + return; + + chain_sg = &c->SG[h->max_cmd_sgentries - 1]; + temp64.val32.lower = chain_sg->Addr.lower; + temp64.val32.upper = chain_sg->Addr.upper; + pci_unmap_single(h->pdev, temp64.val, chain_sg->Len, PCI_DMA_TODEVICE); +} + +static void cciss_map_sg_chain_block(ctlr_info_t *h, CommandList_struct *c, + SGDescriptor_struct *chain_block, int len) +{ + SGDescriptor_struct *chain_sg; + u64bit temp64; + + chain_sg = &c->SG[h->max_cmd_sgentries - 1]; + chain_sg->Ext = CCISS_SG_CHAIN; + chain_sg->Len = len; + temp64.val = pci_map_single(h->pdev, chain_block, len, + PCI_DMA_TODEVICE); + chain_sg->Addr.lower = temp64.val32.lower; + chain_sg->Addr.upper = temp64.val32.upper; +} + #include "cciss_scsi.c" /* For SCSI tape support */ static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG", @@ -1344,26 +1417,27 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, kfree(buff); return -ENOMEM; } - // Fill in the command type + /* Fill in the command type */ c->cmd_type = CMD_IOCTL_PEND; - // Fill in Command Header - c->Header.ReplyQueue = 0; // unused in simple mode - if (iocommand.buf_size > 0) // buffer to fill + /* Fill in Command Header */ + c->Header.ReplyQueue = 0; /* unused in simple mode */ + if (iocommand.buf_size > 0) /* buffer to fill */ { c->Header.SGList = 1; c->Header.SGTotal = 1; - } else // no buffers to fill + } else /* no buffers to fill */ { c->Header.SGList = 0; c->Header.SGTotal = 0; } c->Header.LUN = iocommand.LUN_info; - c->Header.Tag.lower = c->busaddr; // use the kernel address the cmd block for tag + /* use the kernel address the cmd block for tag */ + c->Header.Tag.lower = c->busaddr; - // Fill in Request block + /* Fill in Request block */ c->Request = iocommand.Request; - // Fill in the scatter gather information + /* Fill in the scatter gather information */ if (iocommand.buf_size > 0) { temp64.val = pci_map_single(host->pdev, buff, iocommand.buf_size, @@ -1371,7 +1445,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, c->SG[0].Addr.lower = temp64.val32.lower; c->SG[0].Addr.upper = temp64.val32.upper; c->SG[0].Len = iocommand.buf_size; - c->SG[0].Ext = 0; // we are not chaining + c->SG[0].Ext = 0; /* we are not chaining */ } c->waiting = &wait; @@ -1670,14 +1744,9 @@ static void cciss_softirq_done(struct request *rq) /* unmap the DMA mapping for all the scatter gather elements */ for (i = 0; i < cmd->Header.SGList; i++) { if (curr_sg[sg_index].Ext == CCISS_SG_CHAIN) { - temp64.val32.lower = cmd->SG[i].Addr.lower; - temp64.val32.upper = cmd->SG[i].Addr.upper; - pci_dma_sync_single_for_cpu(h->pdev, temp64.val, - cmd->SG[i].Len, ddir); - pci_unmap_single(h->pdev, temp64.val, - cmd->SG[i].Len, ddir); + cciss_unmap_sg_chain_block(h, cmd); /* Point to the next block */ - curr_sg = h->cmd_sg_list[cmd->cmdindex]->sgchain; + curr_sg = h->cmd_sg_list[cmd->cmdindex]; sg_index = 0; } temp64.val32.lower = curr_sg[sg_index].Addr.lower; @@ -1796,12 +1865,9 @@ static int cciss_add_disk(ctlr_info_t *h, struct gendisk *disk, blk_queue_bounce_limit(disk->queue, h->pdev->dma_mask); /* This is a hardware imposed limit. */ - blk_queue_max_hw_segments(disk->queue, h->maxsgentries); - - /* This is a limit in the driver and could be eliminated. */ - blk_queue_max_phys_segments(disk->queue, h->maxsgentries); + blk_queue_max_segments(disk->queue, h->maxsgentries); - blk_queue_max_sectors(disk->queue, h->cciss_max_sectors); + blk_queue_max_hw_sectors(disk->queue, h->cciss_max_sectors); blk_queue_softirq_done(disk->queue, cciss_softirq_done); @@ -2425,7 +2491,7 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, c->Request.Type.Direction = XFER_READ; c->Request.Timeout = 0; c->Request.CDB[0] = cmd; - c->Request.CDB[6] = (size >> 24) & 0xFF; //MSB + c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ c->Request.CDB[7] = (size >> 16) & 0xFF; c->Request.CDB[8] = (size >> 8) & 0xFF; c->Request.CDB[9] = size & 0xFF; @@ -2694,7 +2760,7 @@ static void cciss_geometry_inquiry(int ctlr, int logvol, "cciss: reading geometry failed, volume " "does not support reading geometry\n"); drv->heads = 255; - drv->sectors = 32; // Sectors per track + drv->sectors = 32; /* Sectors per track */ drv->cylinders = total_size + 1; drv->raid_level = RAID_UNKNOWN; } else { @@ -3082,7 +3148,6 @@ static void do_cciss_request(struct request_queue *q) SGDescriptor_struct *curr_sg; drive_info_struct *drv; int i, dir; - int nseg = 0; int sg_index = 0; int chained = 0; @@ -3112,19 +3177,19 @@ static void do_cciss_request(struct request_queue *q) /* fill in the request */ drv = creq->rq_disk->private_data; - c->Header.ReplyQueue = 0; // unused in simple mode + c->Header.ReplyQueue = 0; /* unused in simple mode */ /* got command from pool, so use the command block index instead */ /* for direct lookups. */ /* The first 2 bits are reserved for controller error reporting. */ c->Header.Tag.lower = (c->cmdindex << 3); c->Header.Tag.lower |= 0x04; /* flag for direct lookup. */ memcpy(&c->Header.LUN, drv->LunID, sizeof(drv->LunID)); - c->Request.CDBLen = 10; // 12 byte commands not in FW yet; - c->Request.Type.Type = TYPE_CMD; // It is a command. + c->Request.CDBLen = 10; /* 12 byte commands not in FW yet; */ + c->Request.Type.Type = TYPE_CMD; /* It is a command. */ c->Request.Type.Attribute = ATTR_SIMPLE; c->Request.Type.Direction = (rq_data_dir(creq) == READ) ? XFER_READ : XFER_WRITE; - c->Request.Timeout = 0; // Don't time out + c->Request.Timeout = 0; /* Don't time out */ c->Request.CDB[0] = (rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write; start_blk = blk_rq_pos(creq); @@ -3149,13 +3214,8 @@ static void do_cciss_request(struct request_queue *q) for (i = 0; i < seg; i++) { if (((sg_index+1) == (h->max_cmd_sgentries)) && !chained && ((seg - i) > 1)) { - nseg = seg - i; - curr_sg[sg_index].Len = (nseg) * - sizeof(SGDescriptor_struct); - curr_sg[sg_index].Ext = CCISS_SG_CHAIN; - /* Point to next chain block. */ - curr_sg = h->cmd_sg_list[c->cmdindex]->sgchain; + curr_sg = h->cmd_sg_list[c->cmdindex]; sg_index = 0; chained = 1; } @@ -3166,31 +3226,12 @@ static void do_cciss_request(struct request_queue *q) curr_sg[sg_index].Addr.lower = temp64.val32.lower; curr_sg[sg_index].Addr.upper = temp64.val32.upper; curr_sg[sg_index].Ext = 0; /* we are not chaining */ - ++sg_index; } - - if (chained) { - int len; - curr_sg = c->SG; - sg_index = h->max_cmd_sgentries - 1; - len = curr_sg[sg_index].Len; - /* Setup pointer to next chain block. - * Fill out last element in current chain - * block with address of next chain block. - */ - temp64.val = pci_map_single(h->pdev, - h->cmd_sg_list[c->cmdindex]->sgchain, - len, dir); - - h->cmd_sg_list[c->cmdindex]->sg_chain_dma = temp64.val; - curr_sg[sg_index].Addr.lower = temp64.val32.lower; - curr_sg[sg_index].Addr.upper = temp64.val32.upper; - - pci_dma_sync_single_for_device(h->pdev, - h->cmd_sg_list[c->cmdindex]->sg_chain_dma, - len, dir); - } + if (chained) + cciss_map_sg_chain_block(h, c, h->cmd_sg_list[c->cmdindex], + (seg - (h->max_cmd_sgentries - 1)) * + sizeof(SGDescriptor_struct)); /* track how many SG entries we are using */ if (seg > h->maxSG) @@ -3209,11 +3250,11 @@ static void do_cciss_request(struct request_queue *q) if (likely(blk_fs_request(creq))) { if(h->cciss_read == CCISS_READ_10) { c->Request.CDB[1] = 0; - c->Request.CDB[2] = (start_blk >> 24) & 0xff; //MSB + c->Request.CDB[2] = (start_blk >> 24) & 0xff; /* MSB */ c->Request.CDB[3] = (start_blk >> 16) & 0xff; c->Request.CDB[4] = (start_blk >> 8) & 0xff; c->Request.CDB[5] = start_blk & 0xff; - c->Request.CDB[6] = 0; // (sect >> 24) & 0xff; MSB + c->Request.CDB[6] = 0; /* (sect >> 24) & 0xff; MSB */ c->Request.CDB[7] = (blk_rq_sectors(creq) >> 8) & 0xff; c->Request.CDB[8] = blk_rq_sectors(creq) & 0xff; c->Request.CDB[9] = c->Request.CDB[11] = c->Request.CDB[12] = 0; @@ -3222,7 +3263,7 @@ static void do_cciss_request(struct request_queue *q) c->Request.CDBLen = 16; c->Request.CDB[1]= 0; - c->Request.CDB[2]= (upper32 >> 24) & 0xff; //MSB + c->Request.CDB[2]= (upper32 >> 24) & 0xff; /* MSB */ c->Request.CDB[3]= (upper32 >> 16) & 0xff; c->Request.CDB[4]= (upper32 >> 8) & 0xff; c->Request.CDB[5]= upper32 & 0xff; @@ -4240,37 +4281,10 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, goto clean4; } } - hba[i]->cmd_sg_list = kmalloc(sizeof(struct Cmd_sg_list *) * - hba[i]->nr_cmds, - GFP_KERNEL); - if (!hba[i]->cmd_sg_list) { - printk(KERN_ERR "cciss%d: Cannot get memory for " - "s/g chaining.\n", i); + hba[i]->cmd_sg_list = cciss_allocate_sg_chain_blocks(hba[i], + hba[i]->chainsize, hba[i]->nr_cmds); + if (!hba[i]->cmd_sg_list && hba[i]->chainsize > 0) goto clean4; - } - /* Build up chain blocks for each command */ - if (hba[i]->chainsize > 0) { - for (j = 0; j < hba[i]->nr_cmds; j++) { - hba[i]->cmd_sg_list[j] = - kmalloc(sizeof(struct Cmd_sg_list), - GFP_KERNEL); - if (!hba[i]->cmd_sg_list[j]) { - printk(KERN_ERR "cciss%d: Cannot get memory " - "for chain block.\n", i); - goto clean4; - } - /* Need a block of chainsized s/g elements. */ - hba[i]->cmd_sg_list[j]->sgchain = - kmalloc((hba[i]->chainsize * - sizeof(SGDescriptor_struct)), - GFP_KERNEL); - if (!hba[i]->cmd_sg_list[j]->sgchain) { - printk(KERN_ERR "cciss%d: Cannot get memory " - "for s/g chains\n", i); - goto clean4; - } - } - } spin_lock_init(&hba[i]->lock); @@ -4329,16 +4343,7 @@ clean4: for (k = 0; k < hba[i]->nr_cmds; k++) kfree(hba[i]->scatter_list[k]); kfree(hba[i]->scatter_list); - /* Only free up extra s/g lists if controller supports them */ - if (hba[i]->chainsize > 0) { - for (j = 0; j < hba[i]->nr_cmds; j++) { - if (hba[i]->cmd_sg_list[j]) { - kfree(hba[i]->cmd_sg_list[j]->sgchain); - kfree(hba[i]->cmd_sg_list[j]); - } - } - kfree(hba[i]->cmd_sg_list); - } + cciss_free_sg_chain_blocks(hba[i]->cmd_sg_list, hba[i]->nr_cmds); if (hba[i]->cmd_pool) pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(CommandList_struct), @@ -4456,16 +4461,7 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev) for (j = 0; j < hba[i]->nr_cmds; j++) kfree(hba[i]->scatter_list[j]); kfree(hba[i]->scatter_list); - /* Only free up extra s/g lists if controller supports them */ - if (hba[i]->chainsize > 0) { - for (j = 0; j < hba[i]->nr_cmds; j++) { - if (hba[i]->cmd_sg_list[j]) { - kfree(hba[i]->cmd_sg_list[j]->sgchain); - kfree(hba[i]->cmd_sg_list[j]); - } - } - kfree(hba[i]->cmd_sg_list); - } + cciss_free_sg_chain_blocks(hba[i]->cmd_sg_list, hba[i]->nr_cmds); /* * Deliberately omit pci_disable_device(): it does something nasty to * Smart Array controllers that pci_enable_device does not undo @@ -4498,7 +4494,7 @@ static int __init cciss_init(void) * boundary. Given that we use pci_alloc_consistent() to allocate an * array of them, the size must be a multiple of 8 bytes. */ - BUILD_BUG_ON(sizeof(CommandList_struct) % 8); + BUILD_BUG_ON(sizeof(CommandList_struct) % COMMANDLIST_ALIGNMENT); printk(KERN_INFO DRIVER_NAME "\n"); diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 1d95db254069..c5d411174db0 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -55,18 +55,12 @@ typedef struct _drive_info_struct char device_initialized; /* indicates whether dev is initialized */ } drive_info_struct; -struct Cmd_sg_list { - SGDescriptor_struct *sgchain; - dma_addr_t sg_chain_dma; - int chain_block_size; -}; - struct ctlr_info { int ctlr; char devname[8]; char *product_name; - char firm_ver[4]; // Firmware version + char firm_ver[4]; /* Firmware version */ struct pci_dev *pdev; __u32 board_id; void __iomem *vaddr; @@ -89,7 +83,7 @@ struct ctlr_info int maxsgentries; int chainsize; int max_cmd_sgentries; - struct Cmd_sg_list **cmd_sg_list; + SGDescriptor_struct **cmd_sg_list; # define DOORBELL_INT 0 # define PERF_MODE_INT 1 @@ -103,7 +97,7 @@ struct ctlr_info BYTE cciss_write; BYTE cciss_read_capacity; - // information about each logical volume + /* information about each logical volume */ drive_info_struct *drv[CISS_MAX_LUN]; struct access_method access; @@ -116,7 +110,7 @@ struct ctlr_info unsigned int maxSG; spinlock_t lock; - //* pointers to command and error info pool */ + /* pointers to command and error info pool */ CommandList_struct *cmd_pool; dma_addr_t cmd_pool_dhandle; ErrorInfo_struct *errinfo_pool; @@ -134,12 +128,10 @@ struct ctlr_info */ int next_to_run; - // Disk structures we need to pass back + /* Disk structures we need to pass back */ struct gendisk *gendisk[CISS_MAX_LUN]; #ifdef CONFIG_CISS_SCSI_TAPE - void *scsi_ctlr; /* ptr to structure containing scsi related stuff */ - /* list of block side commands the scsi error handling sucked up */ - /* and saved for later processing */ + struct cciss_scsi_adapter_data_t *scsi_ctlr; #endif unsigned char alive; struct list_head scan_list; @@ -315,4 +307,3 @@ struct board_type { #define CCISS_LOCK(i) (&hba[i]->lock) #endif /* CCISS_H */ - diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h index 6afa700890ff..e624ff959cb6 100644 --- a/drivers/block/cciss_cmd.h +++ b/drivers/block/cciss_cmd.h @@ -1,31 +1,16 @@ #ifndef CCISS_CMD_H #define CCISS_CMD_H -//########################################################################### -//DEFINES -//########################################################################### + +#include <linux/cciss_defs.h> + +/* DEFINES */ #define CISS_VERSION "1.00" -//general boundary definitions -#define SENSEINFOBYTES 32//note that this value may vary between host implementations +/* general boundary definitions */ #define MAXSGENTRIES 32 #define CCISS_SG_CHAIN 0x80000000 #define MAXREPLYQS 256 -//Command Status value -#define CMD_SUCCESS 0x0000 -#define CMD_TARGET_STATUS 0x0001 -#define CMD_DATA_UNDERRUN 0x0002 -#define CMD_DATA_OVERRUN 0x0003 -#define CMD_INVALID 0x0004 -#define CMD_PROTOCOL_ERR 0x0005 -#define CMD_HARDWARE_ERR 0x0006 -#define CMD_CONNECTION_LOST 0x0007 -#define CMD_ABORTED 0x0008 -#define CMD_ABORT_FAILED 0x0009 -#define CMD_UNSOLICITED_ABORT 0x000A -#define CMD_TIMEOUT 0x000B -#define CMD_UNABORTABLE 0x000C - /* Unit Attentions ASC's as defined for the MSA2012sa */ #define POWER_OR_RESET 0x29 #define STATE_CHANGED 0x2a @@ -49,30 +34,13 @@ #define ASYM_ACCESS_CHANGED 0x06 #define LUN_CAPACITY_CHANGED 0x09 -//transfer direction -#define XFER_NONE 0x00 -#define XFER_WRITE 0x01 -#define XFER_READ 0x02 -#define XFER_RSVD 0x03 - -//task attribute -#define ATTR_UNTAGGED 0x00 -#define ATTR_SIMPLE 0x04 -#define ATTR_HEADOFQUEUE 0x05 -#define ATTR_ORDERED 0x06 -#define ATTR_ACA 0x07 - -//cdb type -#define TYPE_CMD 0x00 -#define TYPE_MSG 0x01 - -//config space register offsets +/* config space register offsets */ #define CFG_VENDORID 0x00 #define CFG_DEVICEID 0x02 #define CFG_I2OBAR 0x10 #define CFG_MEM1BAR 0x14 -//i2o space register offsets +/* i2o space register offsets */ #define I2O_IBDB_SET 0x20 #define I2O_IBDB_CLEAR 0x70 #define I2O_INT_STATUS 0x30 @@ -81,7 +49,7 @@ #define I2O_OBPOST_Q 0x44 #define I2O_DMA1_CFG 0x214 -//Configuration Table +/* Configuration Table */ #define CFGTBL_ChangeReq 0x00000001l #define CFGTBL_AccCmds 0x00000001l @@ -103,24 +71,17 @@ typedef union _u64bit __u64 val; } u64bit; -// Type defs used in the following structs -#define BYTE __u8 -#define WORD __u16 -#define HWORD __u16 -#define DWORD __u32 +/* Type defs used in the following structs */ #define QWORD vals32 -//########################################################################### -//STRUCTURES -//########################################################################### -#define CISS_MAX_LUN 1024 +/* STRUCTURES */ #define CISS_MAX_PHYS_LUN 1024 -// SCSI-3 Cmmands +/* SCSI-3 Cmmands */ #pragma pack(1) #define CISS_INQUIRY 0x12 -//Date returned +/* Date returned */ typedef struct _InquiryData_struct { BYTE data_byte[36]; @@ -128,7 +89,7 @@ typedef struct _InquiryData_struct #define CISS_REPORT_LOG 0xc2 /* Report Logical LUNs */ #define CISS_REPORT_PHYS 0xc3 /* Report Physical LUNs */ -// Data returned +/* Data returned */ typedef struct _ReportLUNdata_struct { BYTE LUNListLength[4]; @@ -139,8 +100,8 @@ typedef struct _ReportLUNdata_struct #define CCISS_READ_CAPACITY 0x25 /* Read Capacity */ typedef struct _ReadCapdata_struct { - BYTE total_size[4]; // Total size in blocks - BYTE block_size[4]; // Size of blocks in bytes + BYTE total_size[4]; /* Total size in blocks */ + BYTE block_size[4]; /* Size of blocks in bytes */ } ReadCapdata_struct; #define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */ @@ -172,52 +133,13 @@ typedef struct _ReadCapdata_struct_16 #define CDB_LEN10 10 #define CDB_LEN16 16 -// BMIC commands +/* BMIC commands */ #define BMIC_READ 0x26 #define BMIC_WRITE 0x27 #define BMIC_CACHE_FLUSH 0xc2 -#define CCISS_CACHE_FLUSH 0x01 //C2 was already being used by CCISS - -//Command List Structure -typedef union _SCSI3Addr_struct { - struct { - BYTE Dev; - BYTE Bus:6; - BYTE Mode:2; // b00 - } PeripDev; - struct { - BYTE DevLSB; - BYTE DevMSB:6; - BYTE Mode:2; // b01 - } LogDev; - struct { - BYTE Dev:5; - BYTE Bus:3; - BYTE Targ:6; - BYTE Mode:2; // b10 - } LogUnit; -} SCSI3Addr_struct; - -typedef struct _PhysDevAddr_struct { - DWORD TargetId:24; - DWORD Bus:6; - DWORD Mode:2; - SCSI3Addr_struct Target[2]; //2 level target device addr -} PhysDevAddr_struct; - -typedef struct _LogDevAddr_struct { - DWORD VolId:30; - DWORD Mode:2; - BYTE reserved[4]; -} LogDevAddr_struct; - -typedef union _LUNAddr_struct { - BYTE LunAddrBytes[8]; - SCSI3Addr_struct SCSI3Lun[4]; - PhysDevAddr_struct PhysDev; - LogDevAddr_struct LogDev; -} LUNAddr_struct; +#define CCISS_CACHE_FLUSH 0x01 /* C2 was already being used by CCISS */ +/* Command List Structure */ #define CTLR_LUNID "\0\0\0\0\0\0\0\0" typedef struct _CommandListHeader_struct { @@ -227,16 +149,6 @@ typedef struct _CommandListHeader_struct { QWORD Tag; LUNAddr_struct LUN; } CommandListHeader_struct; -typedef struct _RequestBlock_struct { - BYTE CDBLen; - struct { - BYTE Type:3; - BYTE Attribute:3; - BYTE Direction:2; - } Type; - HWORD Timeout; - BYTE CDB[16]; -} RequestBlock_struct; typedef struct _ErrDescriptor_struct { QWORD Addr; DWORD Len; @@ -247,28 +159,6 @@ typedef struct _SGDescriptor_struct { DWORD Ext; } SGDescriptor_struct; -typedef union _MoreErrInfo_struct{ - struct { - BYTE Reserved[3]; - BYTE Type; - DWORD ErrorInfo; - }Common_Info; - struct{ - BYTE Reserved[2]; - BYTE offense_size;//size of offending entry - BYTE offense_num; //byte # of offense 0-base - DWORD offense_value; - }Invalid_Cmd; -}MoreErrInfo_struct; -typedef struct _ErrorInfo_struct { - BYTE ScsiStatus; - BYTE SenseLen; - HWORD CommandStatus; - DWORD ResidualCnt; - MoreErrInfo_struct MoreErrInfo; - BYTE SenseInfo[SENSEINFOBYTES]; -} ErrorInfo_struct; - /* Command types */ #define CMD_RWREQ 0x00 #define CMD_IOCTL_PEND 0x01 @@ -277,10 +167,18 @@ typedef struct _ErrorInfo_struct { #define CMD_MSG_TIMEOUT 0x05 #define CMD_MSG_STALE 0xff -/* This structure needs to be divisible by 8 for new - * indexing method. +/* This structure needs to be divisible by COMMANDLIST_ALIGNMENT + * because low bits of the address are used to to indicate that + * whether the tag contains an index or an address. PAD_32 and + * PAD_64 can be adjusted independently as needed for 32-bit + * and 64-bits systems. */ -#define PADSIZE (sizeof(long) - 4) +#define COMMANDLIST_ALIGNMENT (8) +#define IS_64_BIT ((sizeof(long) - 4)/4) +#define IS_32_BIT (!IS_64_BIT) +#define PAD_32 (0) +#define PAD_64 (4) +#define PADSIZE (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64) typedef struct _CommandList_struct { CommandListHeader_struct Header; RequestBlock_struct Request; @@ -300,7 +198,7 @@ typedef struct _CommandList_struct { char pad[PADSIZE]; } CommandList_struct; -//Configuration Table Structure +/* Configuration Table Structure */ typedef struct _HostWrite_struct { DWORD TransportRequest; DWORD Reserved; @@ -326,4 +224,4 @@ typedef struct _CfgTable_struct { DWORD MaxPhysicalDrivesPerLogicalUnit; } CfgTable_struct; #pragma pack() -#endif // CCISS_CMD_H +#endif /* CCISS_CMD_H */ diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 5d0e46dc3632..e1d0e2cfec72 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -84,7 +84,6 @@ static struct scsi_host_template cciss_driver_template = { .queuecommand = cciss_scsi_queue_command, .can_queue = SCSI_CCISS_CAN_QUEUE, .this_id = 7, - .sg_tablesize = MAXSGENTRIES, .cmd_per_lun = 1, .use_clustering = DISABLE_CLUSTERING, /* Can't have eh_bus_reset_handler or eh_host_reset_handler for cciss */ @@ -93,11 +92,16 @@ static struct scsi_host_template cciss_driver_template = { }; #pragma pack(1) + +#define SCSI_PAD_32 0 +#define SCSI_PAD_64 0 + struct cciss_scsi_cmd_stack_elem_t { CommandList_struct cmd; ErrorInfo_struct Err; __u32 busaddr; - __u32 pad; + int cmdindex; + u8 pad[IS_32_BIT * SCSI_PAD_32 + IS_64_BIT * SCSI_PAD_64]; }; #pragma pack() @@ -118,16 +122,15 @@ struct cciss_scsi_cmd_stack_t { struct cciss_scsi_adapter_data_t { struct Scsi_Host *scsi_host; struct cciss_scsi_cmd_stack_t cmd_stack; + SGDescriptor_struct **cmd_sg_list; int registered; spinlock_t lock; // to protect ccissscsi[ctlr]; }; #define CPQ_TAPE_LOCK(ctlr, flags) spin_lock_irqsave( \ - &(((struct cciss_scsi_adapter_data_t *) \ - hba[ctlr]->scsi_ctlr)->lock), flags); + &hba[ctlr]->scsi_ctlr->lock, flags); #define CPQ_TAPE_UNLOCK(ctlr, flags) spin_unlock_irqrestore( \ - &(((struct cciss_scsi_adapter_data_t *) \ - hba[ctlr]->scsi_ctlr)->lock), flags); + &hba[ctlr]->scsi_ctlr->lock, flags); static CommandList_struct * scsi_cmd_alloc(ctlr_info_t *h) @@ -143,7 +146,7 @@ scsi_cmd_alloc(ctlr_info_t *h) struct cciss_scsi_cmd_stack_t *stk; u64bit temp64; - sa = (struct cciss_scsi_adapter_data_t *) h->scsi_ctlr; + sa = h->scsi_ctlr; stk = &sa->cmd_stack; if (stk->top < 0) @@ -154,6 +157,7 @@ scsi_cmd_alloc(ctlr_info_t *h) memset(&c->Err, 0, sizeof(c->Err)); /* set physical addr of cmd and addr of scsi parameters */ c->cmd.busaddr = c->busaddr; + c->cmd.cmdindex = c->cmdindex; /* (__u32) (stk->cmd_pool_handle + (sizeof(struct cciss_scsi_cmd_stack_elem_t)*stk->top)); */ @@ -182,7 +186,7 @@ scsi_cmd_free(ctlr_info_t *h, CommandList_struct *cmd) struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; - sa = (struct cciss_scsi_adapter_data_t *) h->scsi_ctlr; + sa = h->scsi_ctlr; stk = &sa->cmd_stack; if (stk->top >= CMD_STACK_SIZE) { printk("cciss: scsi_cmd_free called too many times.\n"); @@ -199,24 +203,31 @@ scsi_cmd_stack_setup(int ctlr, struct cciss_scsi_adapter_data_t *sa) struct cciss_scsi_cmd_stack_t *stk; size_t size; + sa->cmd_sg_list = cciss_allocate_sg_chain_blocks(hba[ctlr], + hba[ctlr]->chainsize, CMD_STACK_SIZE); + if (!sa->cmd_sg_list && hba[ctlr]->chainsize > 0) + return -ENOMEM; + stk = &sa->cmd_stack; size = sizeof(struct cciss_scsi_cmd_stack_elem_t) * CMD_STACK_SIZE; - // pci_alloc_consistent guarantees 32-bit DMA address will - // be used - + /* Check alignment, see cciss_cmd.h near CommandList_struct def. */ + BUILD_BUG_ON((sizeof(*stk->pool) % COMMANDLIST_ALIGNMENT) != 0); + /* pci_alloc_consistent guarantees 32-bit DMA address will be used */ stk->pool = (struct cciss_scsi_cmd_stack_elem_t *) pci_alloc_consistent(hba[ctlr]->pdev, size, &stk->cmd_pool_handle); if (stk->pool == NULL) { - printk("stk->pool is null\n"); - return -1; + cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE); + sa->cmd_sg_list = NULL; + return -ENOMEM; } for (i=0; i<CMD_STACK_SIZE; i++) { stk->elem[i] = &stk->pool[i]; stk->elem[i]->busaddr = (__u32) (stk->cmd_pool_handle + (sizeof(struct cciss_scsi_cmd_stack_elem_t) * i)); + stk->elem[i]->cmdindex = i; } stk->top = CMD_STACK_SIZE-1; return 0; @@ -229,7 +240,7 @@ scsi_cmd_stack_free(int ctlr) struct cciss_scsi_cmd_stack_t *stk; size_t size; - sa = (struct cciss_scsi_adapter_data_t *) hba[ctlr]->scsi_ctlr; + sa = hba[ctlr]->scsi_ctlr; stk = &sa->cmd_stack; if (stk->top != CMD_STACK_SIZE-1) { printk( "cciss: %d scsi commands are still outstanding.\n", @@ -241,6 +252,7 @@ scsi_cmd_stack_free(int ctlr) pci_free_consistent(hba[ctlr]->pdev, size, stk->pool, stk->cmd_pool_handle); stk->pool = NULL; + cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE); } #if 0 @@ -530,8 +542,7 @@ adjust_cciss_scsi_table(int ctlr, int hostno, CPQ_TAPE_LOCK(ctlr, flags); if (hostno != -1) /* if it's not the first time... */ - sh = ((struct cciss_scsi_adapter_data_t *) - hba[ctlr]->scsi_ctlr)->scsi_host; + sh = hba[ctlr]->scsi_ctlr->scsi_host; /* find any devices in ccissscsi[] that are not in sd[] and remove them from ccissscsi[] */ @@ -702,7 +713,7 @@ cciss_scsi_setup(int cntl_num) kfree(shba); shba = NULL; } - hba[cntl_num]->scsi_ctlr = (void *) shba; + hba[cntl_num]->scsi_ctlr = shba; return; } @@ -725,6 +736,8 @@ complete_scsi_command( CommandList_struct *cp, int timeout, __u32 tag) ctlr = hba[cp->ctlr]; scsi_dma_unmap(cmd); + if (cp->Header.SGTotal > ctlr->max_cmd_sgentries) + cciss_unmap_sg_chain_block(ctlr, cp); cmd->result = (DID_OK << 16); /* host byte */ cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ @@ -847,9 +860,10 @@ cciss_scsi_detect(int ctlr) sh->io_port = 0; // good enough? FIXME, sh->n_io_port = 0; // I don't think we use these two... sh->this_id = SELF_SCSI_ID; + sh->sg_tablesize = hba[ctlr]->maxsgentries; ((struct cciss_scsi_adapter_data_t *) - hba[ctlr]->scsi_ctlr)->scsi_host = (void *) sh; + hba[ctlr]->scsi_ctlr)->scsi_host = sh; sh->hostdata[0] = (unsigned long) hba[ctlr]; sh->irq = hba[ctlr]->intr[SIMPLE_MODE_INT]; sh->unique_id = sh->irq; @@ -1364,34 +1378,54 @@ cciss_scsi_proc_info(struct Scsi_Host *sh, dma mapping and fills in the scatter gather entries of the cciss command, cp. */ -static void -cciss_scatter_gather(struct pci_dev *pdev, - CommandList_struct *cp, - struct scsi_cmnd *cmd) +static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *cp, + struct scsi_cmnd *cmd) { unsigned int len; struct scatterlist *sg; __u64 addr64; - int use_sg, i; - - BUG_ON(scsi_sg_count(cmd) > MAXSGENTRIES); - - use_sg = scsi_dma_map(cmd); - if (use_sg) { /* not too many addrs? */ - scsi_for_each_sg(cmd, sg, use_sg, i) { + int request_nsgs, i, chained, sg_index; + struct cciss_scsi_adapter_data_t *sa = h->scsi_ctlr; + SGDescriptor_struct *curr_sg; + + BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); + + chained = 0; + sg_index = 0; + curr_sg = cp->SG; + request_nsgs = scsi_dma_map(cmd); + if (request_nsgs) { + scsi_for_each_sg(cmd, sg, request_nsgs, i) { + if (sg_index + 1 == h->max_cmd_sgentries && + !chained && request_nsgs - i > 1) { + chained = 1; + sg_index = 0; + curr_sg = sa->cmd_sg_list[cp->cmdindex]; + } addr64 = (__u64) sg_dma_address(sg); len = sg_dma_len(sg); - cp->SG[i].Addr.lower = - (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF); - cp->SG[i].Addr.upper = - (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF); - cp->SG[i].Len = len; - cp->SG[i].Ext = 0; // we are not chaining + curr_sg[sg_index].Addr.lower = + (__u32) (addr64 & 0x0FFFFFFFFULL); + curr_sg[sg_index].Addr.upper = + (__u32) ((addr64 >> 32) & 0x0FFFFFFFFULL); + curr_sg[sg_index].Len = len; + curr_sg[sg_index].Ext = 0; + ++sg_index; } + if (chained) + cciss_map_sg_chain_block(h, cp, + sa->cmd_sg_list[cp->cmdindex], + (request_nsgs - (h->max_cmd_sgentries - 1)) * + sizeof(SGDescriptor_struct)); } - - cp->Header.SGList = (__u8) use_sg; /* no. SGs contig in this cmd */ - cp->Header.SGTotal = (__u16) use_sg; /* total sgs in this cmd list */ + /* track how many SG entries we are using */ + if (request_nsgs > h->maxSG) + h->maxSG = request_nsgs; + cp->Header.SGTotal = (__u8) request_nsgs + chained; + if (request_nsgs > h->max_cmd_sgentries) + cp->Header.SGList = h->max_cmd_sgentries; + else + cp->Header.SGList = cp->Header.SGTotal; return; } @@ -1399,7 +1433,7 @@ cciss_scatter_gather(struct pci_dev *pdev, static int cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *)) { - ctlr_info_t **c; + ctlr_info_t *c; int ctlr, rc; unsigned char scsi3addr[8]; CommandList_struct *cp; @@ -1407,8 +1441,8 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd // Get the ptr to our adapter structure (hba[i]) out of cmd->host. // We violate cmd->host privacy here. (Is there another way?) - c = (ctlr_info_t **) &cmd->device->host->hostdata[0]; - ctlr = (*c)->ctlr; + c = (ctlr_info_t *) cmd->device->host->hostdata[0]; + ctlr = c->ctlr; rc = lookup_scsi3addr(ctlr, cmd->device->channel, cmd->device->id, cmd->device->lun, scsi3addr); @@ -1431,7 +1465,7 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd see what the device thinks of it. */ spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - cp = scsi_cmd_alloc(*c); + cp = scsi_cmd_alloc(c); spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); if (cp == NULL) { /* trouble... */ printk("scsi_cmd_alloc returned NULL!\n"); @@ -1489,15 +1523,14 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd BUG(); break; } - - cciss_scatter_gather((*c)->pdev, cp, cmd); // Fill the SG list + cciss_scatter_gather(c, cp, cmd); /* Put the request on the tail of the request queue */ spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - addQ(&(*c)->reqQ, cp); - (*c)->Qdepth++; - start_io(*c); + addQ(&c->reqQ, cp); + c->Qdepth++; + start_io(c); spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); /* the cmd'll come back via intr handler in complete_scsi_command() */ @@ -1514,7 +1547,7 @@ cciss_unregister_scsi(int ctlr) /* we are being forcibly unloaded, and may not refuse. */ spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - sa = (struct cciss_scsi_adapter_data_t *) hba[ctlr]->scsi_ctlr; + sa = hba[ctlr]->scsi_ctlr; stk = &sa->cmd_stack; /* if we weren't ever actually registered, don't unregister */ @@ -1541,7 +1574,7 @@ cciss_engage_scsi(int ctlr) unsigned long flags; spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - sa = (struct cciss_scsi_adapter_data_t *) hba[ctlr]->scsi_ctlr; + sa = hba[ctlr]->scsi_ctlr; stk = &sa->cmd_stack; if (sa->registered) { @@ -1654,14 +1687,14 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) int rc; CommandList_struct *cmd_in_trouble; unsigned char lunaddr[8]; - ctlr_info_t **c; + ctlr_info_t *c; int ctlr; /* find the controller to which the command to be aborted was sent */ - c = (ctlr_info_t **) &scsicmd->device->host->hostdata[0]; + c = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; if (c == NULL) /* paranoia */ return FAILED; - ctlr = (*c)->ctlr; + ctlr = c->ctlr; printk(KERN_WARNING "cciss%d: resetting tape drive or medium changer.\n", ctlr); /* find the command that's giving us trouble */ cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble; @@ -1671,7 +1704,7 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) /* send a reset to the SCSI LUN which the command was sent to */ rc = sendcmd_withirq(CCISS_RESET_MSG, ctlr, NULL, 0, 0, lunaddr, TYPE_MSG); - if (rc == 0 && wait_for_device_to_become_ready(*c, lunaddr) == 0) + if (rc == 0 && wait_for_device_to_become_ready(c, lunaddr) == 0) return SUCCESS; printk(KERN_WARNING "cciss%d: resetting device failed.\n", ctlr); return FAILED; @@ -1682,14 +1715,14 @@ static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) int rc; CommandList_struct *cmd_to_abort; unsigned char lunaddr[8]; - ctlr_info_t **c; + ctlr_info_t *c; int ctlr; /* find the controller to which the command to be aborted was sent */ - c = (ctlr_info_t **) &scsicmd->device->host->hostdata[0]; + c = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; if (c == NULL) /* paranoia */ return FAILED; - ctlr = (*c)->ctlr; + ctlr = c->ctlr; printk(KERN_WARNING "cciss%d: aborting tardy SCSI cmd\n", ctlr); /* find the command to be aborted */ diff --git a/drivers/block/cciss_scsi.h b/drivers/block/cciss_scsi.h index 7b750245ae76..6d5822fe851a 100644 --- a/drivers/block/cciss_scsi.h +++ b/drivers/block/cciss_scsi.h @@ -25,16 +25,16 @@ #include <scsi/scsicam.h> /* possibly irrelevant, since we don't show disks */ - // the scsi id of the adapter... + /* the scsi id of the adapter... */ #define SELF_SCSI_ID 15 - // 15 is somewhat arbitrary, since the scsi-2 bus - // that's presented by the driver to the OS is - // fabricated. The "real" scsi-3 bus the - // hardware presents is fabricated too. - // The actual, honest-to-goodness physical - // bus that the devices are attached to is not - // addressible natively, and may in fact turn - // out to be not scsi at all. + /* 15 is somewhat arbitrary, since the scsi-2 bus + that's presented by the driver to the OS is + fabricated. The "real" scsi-3 bus the + hardware presents is fabricated too. + The actual, honest-to-goodness physical + bus that the devices are attached to is not + addressible natively, and may in fact turn + out to be not scsi at all. */ #define SCSI_CCISS_CAN_QUEUE 2 diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index 6422651ec364..91d11631cec9 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -448,11 +448,8 @@ static int __init cpqarray_register_ctlr( int i, struct pci_dev *pdev) blk_queue_bounce_limit(q, hba[i]->pci_dev->dma_mask); /* This is a hardware imposed limit. */ - blk_queue_max_hw_segments(q, SG_MAX); + blk_queue_max_segments(q, SG_MAX); - /* This is a driver limit and could be eliminated. */ - blk_queue_max_phys_segments(q, SG_MAX); - init_timer(&hba[i]->timer); hba[i]->timer.expires = jiffies + IDA_TIMER; hba[i]->timer.data = (unsigned long)hba[i]; diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 2bf3a6ef3684..d9301e861d9f 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -95,7 +95,7 @@ extern char usermode_helper[]; /* All EEs on the free list should have ID_VACANT (== 0) * freshly allocated EEs get !ID_VACANT (== 1) - * so if it says "cannot dereference null pointer at adress 0x00000001", + * so if it says "cannot dereference null pointer at address 0x00000001", * it is most likely one of these :( */ #define ID_IN_SYNC (4711ULL) @@ -1171,7 +1171,7 @@ extern int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf /* Meta data layout We reserve a 128MB Block (4k aligned) * either at the end of the backing device - * or on a seperate meta data device. */ + * or on a separate meta data device. */ #define MD_RESERVED_SECT (128LU << 11) /* 128 MB, unit sectors */ /* The following numbers are sectors */ diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 1292e0620663..4df3b40b1057 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -709,9 +709,8 @@ void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_seg_s) __mu max_seg_s = min(queue_max_sectors(b) * queue_logical_block_size(b), max_seg_s); - blk_queue_max_sectors(q, max_seg_s >> 9); - blk_queue_max_phys_segments(q, max_segments ? max_segments : MAX_PHYS_SEGMENTS); - blk_queue_max_hw_segments(q, max_segments ? max_segments : MAX_HW_SEGMENTS); + blk_queue_max_hw_sectors(q, max_seg_s >> 9); + blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS); blk_queue_max_segment_size(q, max_seg_s); blk_queue_logical_block_size(q, 512); blk_queue_segment_boundary(q, PAGE_SIZE-1); diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index f22c1bc8ec7e..16119d7056cc 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -57,7 +57,7 @@ * * It may me handed over to the local disk subsystem. * It may be completed by the local disk subsystem, - * either sucessfully or with io-error. + * either successfully or with io-error. * In case it is a READ request, and it failed locally, * it may be retried remotely. * diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 3266b4f65daa..90c4038702da 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -144,13 +144,23 @@ * Better audit of register_blkdev. */ -#define FLOPPY_SANITY_CHECK #undef FLOPPY_SILENT_DCL_CLEAR #define REALLY_SLOW_IO #define DEBUGT 2 -#define DCL_DEBUG /* debug disk change line */ + +#define DPRINT(format, args...) \ + pr_info("floppy%d: " format, current_drive, ##args) + +#define DCL_DEBUG /* debug disk change line */ +#ifdef DCL_DEBUG +#define debug_dcl(test, fmt, args...) \ + do { if ((test) & FD_DEBUG) DPRINT(fmt, ##args); } while (0) +#else +#define debug_dcl(test, fmt, args...) \ + do { if (0) DPRINT(fmt, ##args); } while (0) +#endif /* do print messages for unexpected interrupts */ static int print_unex = 1; @@ -180,6 +190,8 @@ static int print_unex = 1; #include <linux/mod_devicetable.h> #include <linux/buffer_head.h> /* for invalidate_buffers() */ #include <linux/mutex.h> +#include <linux/io.h> +#include <linux/uaccess.h> /* * PS/2 floppies have much slower step rates than regular floppies. @@ -191,8 +203,6 @@ static int slow_floppy; #include <asm/dma.h> #include <asm/irq.h> #include <asm/system.h> -#include <asm/io.h> -#include <asm/uaccess.h> static int FLOPPY_IRQ = 6; static int FLOPPY_DMA = 2; @@ -241,8 +251,6 @@ static int allowed_drive_mask = 0x33; static int irqdma_allocated; -#define DEVICE_NAME "floppy" - #include <linux/blkdev.h> #include <linux/blkpg.h> #include <linux/cdrom.h> /* for the compatibility eject ioctl */ @@ -250,7 +258,7 @@ static int irqdma_allocated; static struct request *current_req; static struct request_queue *floppy_queue; -static void do_fd_request(struct request_queue * q); +static void do_fd_request(struct request_queue *q); #ifndef fd_get_dma_residue #define fd_get_dma_residue() get_dma_residue(FLOPPY_DMA) @@ -263,7 +271,7 @@ static void do_fd_request(struct request_queue * q); #endif #ifndef fd_dma_mem_alloc -#define fd_dma_mem_alloc(size) __get_dma_pages(GFP_KERNEL,get_order(size)) +#define fd_dma_mem_alloc(size) __get_dma_pages(GFP_KERNEL, get_order(size)) #endif static inline void fallback_on_nodma_alloc(char **addr, size_t l) @@ -273,7 +281,7 @@ static inline void fallback_on_nodma_alloc(char **addr, size_t l) return; /* we have the memory */ if (can_use_virtual_dma != 2) return; /* no fallback allowed */ - printk("DMA memory shortage. Temporarily falling back on virtual DMA\n"); + pr_info("DMA memory shortage. Temporarily falling back on virtual DMA\n"); *addr = (char *)nodma_mem_alloc(l); #else return; @@ -283,59 +291,50 @@ static inline void fallback_on_nodma_alloc(char **addr, size_t l) /* End dma memory related stuff */ static unsigned long fake_change; -static int initialising = 1; +static bool initialized; -#define ITYPE(x) (((x)>>2) & 0x1f) -#define TOMINOR(x) ((x & 3) | ((x & 4) << 5)) -#define UNIT(x) ((x) & 0x03) /* drive on fdc */ -#define FDC(x) (((x) & 0x04) >> 2) /* fdc of drive */ +#define ITYPE(x) (((x) >> 2) & 0x1f) +#define TOMINOR(x) ((x & 3) | ((x & 4) << 5)) +#define UNIT(x) ((x) & 0x03) /* drive on fdc */ +#define FDC(x) (((x) & 0x04) >> 2) /* fdc of drive */ /* reverse mapping from unit and fdc to drive */ #define REVDRIVE(fdc, unit) ((unit) + ((fdc) << 2)) -#define DP (&drive_params[current_drive]) -#define DRS (&drive_state[current_drive]) -#define DRWE (&write_errors[current_drive]) -#define FDCS (&fdc_state[fdc]) -#define CLEARF(x) clear_bit(x##_BIT, &DRS->flags) -#define SETF(x) set_bit(x##_BIT, &DRS->flags) -#define TESTF(x) test_bit(x##_BIT, &DRS->flags) -#define UDP (&drive_params[drive]) -#define UDRS (&drive_state[drive]) -#define UDRWE (&write_errors[drive]) -#define UFDCS (&fdc_state[FDC(drive)]) -#define UCLEARF(x) clear_bit(x##_BIT, &UDRS->flags) -#define USETF(x) set_bit(x##_BIT, &UDRS->flags) -#define UTESTF(x) test_bit(x##_BIT, &UDRS->flags) +#define DP (&drive_params[current_drive]) +#define DRS (&drive_state[current_drive]) +#define DRWE (&write_errors[current_drive]) +#define FDCS (&fdc_state[fdc]) -#define DPRINT(format, args...) printk(DEVICE_NAME "%d: " format, current_drive , ## args) +#define UDP (&drive_params[drive]) +#define UDRS (&drive_state[drive]) +#define UDRWE (&write_errors[drive]) +#define UFDCS (&fdc_state[FDC(drive)]) -#define PH_HEAD(floppy,head) (((((floppy)->stretch & 2) >>1) ^ head) << 2) -#define STRETCH(floppy) ((floppy)->stretch & FD_STRETCH) - -#define CLEARSTRUCT(x) memset((x), 0, sizeof(*(x))) +#define PH_HEAD(floppy, head) (((((floppy)->stretch & 2) >> 1) ^ head) << 2) +#define STRETCH(floppy) ((floppy)->stretch & FD_STRETCH) /* read/write */ -#define COMMAND raw_cmd->cmd[0] -#define DR_SELECT raw_cmd->cmd[1] -#define TRACK raw_cmd->cmd[2] -#define HEAD raw_cmd->cmd[3] -#define SECTOR raw_cmd->cmd[4] -#define SIZECODE raw_cmd->cmd[5] -#define SECT_PER_TRACK raw_cmd->cmd[6] -#define GAP raw_cmd->cmd[7] -#define SIZECODE2 raw_cmd->cmd[8] +#define COMMAND (raw_cmd->cmd[0]) +#define DR_SELECT (raw_cmd->cmd[1]) +#define TRACK (raw_cmd->cmd[2]) +#define HEAD (raw_cmd->cmd[3]) +#define SECTOR (raw_cmd->cmd[4]) +#define SIZECODE (raw_cmd->cmd[5]) +#define SECT_PER_TRACK (raw_cmd->cmd[6]) +#define GAP (raw_cmd->cmd[7]) +#define SIZECODE2 (raw_cmd->cmd[8]) #define NR_RW 9 /* format */ -#define F_SIZECODE raw_cmd->cmd[2] -#define F_SECT_PER_TRACK raw_cmd->cmd[3] -#define F_GAP raw_cmd->cmd[4] -#define F_FILL raw_cmd->cmd[5] +#define F_SIZECODE (raw_cmd->cmd[2]) +#define F_SECT_PER_TRACK (raw_cmd->cmd[3]) +#define F_GAP (raw_cmd->cmd[4]) +#define F_FILL (raw_cmd->cmd[5]) #define NR_F 6 /* - * Maximum disk size (in kilobytes). This default is used whenever the - * current disk size is unknown. + * Maximum disk size (in kilobytes). + * This default is used whenever the current disk size is unknown. * [Now it is rather a minimum] */ #define MAX_DISK_SIZE 4 /* 3984 */ @@ -345,16 +344,17 @@ static int initialising = 1; */ #define MAX_REPLIES 16 static unsigned char reply_buffer[MAX_REPLIES]; -static int inr; /* size of reply buffer, when called from interrupt */ -#define ST0 (reply_buffer[0]) -#define ST1 (reply_buffer[1]) -#define ST2 (reply_buffer[2]) -#define ST3 (reply_buffer[0]) /* result of GETSTATUS */ -#define R_TRACK (reply_buffer[3]) -#define R_HEAD (reply_buffer[4]) -#define R_SECTOR (reply_buffer[5]) -#define R_SIZECODE (reply_buffer[6]) -#define SEL_DLY (2*HZ/100) +static int inr; /* size of reply buffer, when called from interrupt */ +#define ST0 (reply_buffer[0]) +#define ST1 (reply_buffer[1]) +#define ST2 (reply_buffer[2]) +#define ST3 (reply_buffer[0]) /* result of GETSTATUS */ +#define R_TRACK (reply_buffer[3]) +#define R_HEAD (reply_buffer[4]) +#define R_SECTOR (reply_buffer[5]) +#define R_SIZECODE (reply_buffer[6]) + +#define SEL_DLY (2 * HZ / 100) /* * this struct defines the different floppy drive types. @@ -505,9 +505,9 @@ static char floppy_device_name[] = "floppy"; static int probing; /* Synchronization of FDC access. */ -#define FD_COMMAND_NONE -1 -#define FD_COMMAND_ERROR 2 -#define FD_COMMAND_OKAY 3 +#define FD_COMMAND_NONE -1 +#define FD_COMMAND_ERROR 2 +#define FD_COMMAND_OKAY 3 static volatile int command_status = FD_COMMAND_NONE; static unsigned long fdc_busy; @@ -515,11 +515,6 @@ static DECLARE_WAIT_QUEUE_HEAD(fdc_wait); static DECLARE_WAIT_QUEUE_HEAD(command_done); #define NO_SIGNAL (!interruptible || !signal_pending(current)) -#define CALL(x) if ((x) == -EINTR) return -EINTR -#define ECALL(x) if ((ret = (x))) return ret; -#define _WAIT(x,i) CALL(ret=wait_til_done((x),i)) -#define WAIT(x) _WAIT((x),interruptible) -#define IWAIT(x) _WAIT((x),1) /* Errors during formatting are counted here. */ static int format_errors; @@ -545,8 +540,9 @@ static int max_buffer_sectors; static int *errors; typedef void (*done_f)(int); static struct cont_t { - void (*interrupt)(void); /* this is called after the interrupt of the - * main command */ + void (*interrupt)(void); + /* this is called after the interrupt of the + * main command */ void (*redo)(void); /* this is called to retry the operation */ void (*error)(void); /* this is called to tally an error */ done_f done; /* this is called to say if the operation has @@ -571,7 +567,6 @@ static void floppy_release_irq_and_dma(void); * reset doesn't need to be tested before sending commands, because * output_byte is automatically disabled when reset is set. */ -#define CHECK_RESET { if (FDCS->reset){ reset_fdc(); return; } } static void reset_fdc(void); /* @@ -579,9 +574,9 @@ static void reset_fdc(void); * information to interrupts. They are the data used for the current * request. */ -#define NO_TRACK -1 -#define NEED_1_RECAL -2 -#define NEED_2_RECAL -3 +#define NO_TRACK -1 +#define NEED_1_RECAL -2 +#define NEED_2_RECAL -3 static int usage_count; @@ -621,39 +616,35 @@ static inline void set_debugt(void) debugtimer = jiffies; } -static inline void debugt(const char *message) +static inline void debugt(const char *func, const char *msg) { if (DP->flags & DEBUGT) - printk("%s dtime=%lu\n", message, jiffies - debugtimer); + pr_info("%s:%s dtime=%lu\n", func, msg, jiffies - debugtimer); } #else static inline void set_debugt(void) { } -static inline void debugt(const char *message) { } +static inline void debugt(const char *func, const char *msg) { } #endif /* DEBUGT */ -typedef void (*timeout_fn) (unsigned long); +typedef void (*timeout_fn)(unsigned long); static DEFINE_TIMER(fd_timeout, floppy_shutdown, 0, 0); static const char *timeout_message; -#ifdef FLOPPY_SANITY_CHECK -static void is_alive(const char *message) +static void is_alive(const char *func, const char *message) { /* this routine checks whether the floppy driver is "alive" */ - if (test_bit(0, &fdc_busy) && command_status < 2 - && !timer_pending(&fd_timeout)) { - DPRINT("timeout handler died: %s\n", message); + if (test_bit(0, &fdc_busy) && command_status < 2 && + !timer_pending(&fd_timeout)) { + DPRINT("%s: timeout handler died. %s\n", func, message); } } -#endif -static void (*do_floppy) (void) = NULL; - -#ifdef FLOPPY_SANITY_CHECK +static void (*do_floppy)(void) = NULL; #define OLOGSIZE 20 -static void (*lasthandler) (void); +static void (*lasthandler)(void); static unsigned long interruptjiffies; static unsigned long resultjiffies; static int resultsize; @@ -666,12 +657,11 @@ static struct output_log { } output_log[OLOGSIZE]; static int output_log_pos; -#endif #define current_reqD -1 #define MAXTIMEOUT -2 -static void __reschedule_timeout(int drive, const char *message, int marg) +static void __reschedule_timeout(int drive, const char *message) { if (drive == current_reqD) drive = current_drive; @@ -682,25 +672,22 @@ static void __reschedule_timeout(int drive, const char *message, int marg) } else fd_timeout.expires = jiffies + UDP->timeout; add_timer(&fd_timeout); - if (UDP->flags & FD_DEBUG) { - DPRINT("reschedule timeout "); - printk(message, marg); - printk("\n"); - } + if (UDP->flags & FD_DEBUG) + DPRINT("reschedule timeout %s\n", message); timeout_message = message; } -static void reschedule_timeout(int drive, const char *message, int marg) +static void reschedule_timeout(int drive, const char *message) { unsigned long flags; spin_lock_irqsave(&floppy_lock, flags); - __reschedule_timeout(drive, message, marg); + __reschedule_timeout(drive, message); spin_unlock_irqrestore(&floppy_lock, flags); } -#define INFBOUND(a,b) (a)=max_t(int, a, b) -#define SUPBOUND(a,b) (a)=min_t(int, a, b) +#define INFBOUND(a, b) (a) = max_t(int, a, b) +#define SUPBOUND(a, b) (a) = min_t(int, a, b) /* * Bottom half floppy driver. @@ -739,7 +726,6 @@ static int disk_change(int drive) { int fdc = FDC(drive); -#ifdef FLOPPY_SANITY_CHECK if (time_before(jiffies, UDRS->select_date + UDP->select_delay)) DPRINT("WARNING disk change called early\n"); if (!(FDCS->dor & (0x10 << UNIT(drive))) || @@ -748,31 +734,27 @@ static int disk_change(int drive) DPRINT("drive=%d fdc=%d dor=%x\n", drive, FDC(drive), (unsigned int)FDCS->dor); } -#endif -#ifdef DCL_DEBUG - if (UDP->flags & FD_DEBUG) { - DPRINT("checking disk change line for drive %d\n", drive); - DPRINT("jiffies=%lu\n", jiffies); - DPRINT("disk change line=%x\n", fd_inb(FD_DIR) & 0x80); - DPRINT("flags=%lx\n", UDRS->flags); - } -#endif + debug_dcl(UDP->flags, + "checking disk change line for drive %d\n", drive); + debug_dcl(UDP->flags, "jiffies=%lu\n", jiffies); + debug_dcl(UDP->flags, "disk change line=%x\n", fd_inb(FD_DIR) & 0x80); + debug_dcl(UDP->flags, "flags=%lx\n", UDRS->flags); + if (UDP->flags & FD_BROKEN_DCL) - return UTESTF(FD_DISK_CHANGED); + return test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags); if ((fd_inb(FD_DIR) ^ UDP->flags) & 0x80) { - USETF(FD_VERIFY); /* verify write protection */ - if (UDRS->maxblock) { - /* mark it changed */ - USETF(FD_DISK_CHANGED); - } + set_bit(FD_VERIFY_BIT, &UDRS->flags); + /* verify write protection */ + + if (UDRS->maxblock) /* mark it changed */ + set_bit(FD_DISK_CHANGED_BIT, &UDRS->flags); /* invalidate its geometry */ if (UDRS->keep_data >= 0) { if ((UDP->flags & FTD_MSG) && current_type[drive] != NULL) - DPRINT("Disk type is undefined after " - "disk change\n"); + DPRINT("Disk type is undefined after disk change\n"); current_type[drive] = NULL; floppy_sizes[TOMINOR(drive)] = MAX_DISK_SIZE << 1; } @@ -780,7 +762,7 @@ static int disk_change(int drive) return 1; } else { UDRS->last_checked = jiffies; - UCLEARF(FD_DISK_NEWCHANGE); + clear_bit(FD_DISK_NEWCHANGE_BIT, &UDRS->flags); } return 0; } @@ -790,6 +772,12 @@ static inline int is_selected(int dor, int unit) return ((dor & (0x10 << unit)) && (dor & 3) == unit); } +static bool is_ready_state(int status) +{ + int state = status & (STATUS_READY | STATUS_DIR | STATUS_DMA); + return state == STATUS_READY; +} + static int set_dor(int fdc, char mask, char data) { unsigned char unit; @@ -806,11 +794,8 @@ static int set_dor(int fdc, char mask, char data) unit = olddor & 0x3; if (is_selected(olddor, unit) && !is_selected(newdor, unit)) { drive = REVDRIVE(fdc, unit); -#ifdef DCL_DEBUG - if (UDP->flags & FD_DEBUG) { - DPRINT("calling disk change from set_dor\n"); - } -#endif + debug_dcl(UDP->flags, + "calling disk change from set_dor\n"); disk_change(drive); } FDCS->dor = newdor; @@ -834,8 +819,10 @@ static void twaddle(void) DRS->select_date = jiffies; } -/* reset all driver information about the current fdc. This is needed after - * a reset, and after a raw command. */ +/* + * Reset all driver information about the current fdc. + * This is needed after a reset, and after a raw command. + */ static void reset_fdc_info(int mode) { int drive; @@ -857,7 +844,7 @@ static void set_fdc(int drive) current_drive = drive; } if (fdc != 1 && fdc != 0) { - printk("bad fdc value\n"); + pr_info("bad fdc value\n"); return; } set_dor(fdc, ~0, 8); @@ -871,11 +858,10 @@ static void set_fdc(int drive) } /* locks the driver */ -static int _lock_fdc(int drive, int interruptible, int line) +static int _lock_fdc(int drive, bool interruptible, int line) { if (!usage_count) { - printk(KERN_ERR - "Trying to lock fdc while usage count=0 at line %d\n", + pr_err("Trying to lock fdc while usage count=0 at line %d\n", line); return -1; } @@ -904,15 +890,13 @@ static int _lock_fdc(int drive, int interruptible, int line) } command_status = FD_COMMAND_NONE; - __reschedule_timeout(drive, "lock fdc", 0); + __reschedule_timeout(drive, "lock fdc"); set_fdc(drive); return 0; } -#define lock_fdc(drive,interruptible) _lock_fdc(drive,interruptible, __LINE__) - -#define LOCK_FDC(drive,interruptible) \ -if (lock_fdc(drive,interruptible)) return -EINTR; +#define lock_fdc(drive, interruptible) \ + _lock_fdc(drive, interruptible, __LINE__) /* unlocks the driver */ static inline void unlock_fdc(void) @@ -924,7 +908,7 @@ static inline void unlock_fdc(void) DPRINT("FDC access conflict!\n"); if (do_floppy) - DPRINT("device interrupt still active at FDC release: %p!\n", + DPRINT("device interrupt still active at FDC release: %pf!\n", do_floppy); command_status = FD_COMMAND_NONE; spin_lock_irqsave(&floppy_lock, flags); @@ -1003,7 +987,7 @@ static void empty(void) static DECLARE_WORK(floppy_work, NULL); -static void schedule_bh(void (*handler) (void)) +static void schedule_bh(void (*handler)(void)) { PREPARE_WORK(&floppy_work, (work_func_t)handler); schedule_work(&floppy_work); @@ -1026,11 +1010,7 @@ static void cancel_activity(void) * transfer */ static void fd_watchdog(void) { -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("calling disk change from watchdog\n"); - } -#endif + debug_dcl(DP->flags, "calling disk change from watchdog\n"); if (disk_change(current_drive)) { DPRINT("disk removed during i/o\n"); @@ -1039,7 +1019,7 @@ static void fd_watchdog(void) reset_fdc(); } else { del_timer(&fd_timer); - fd_timer.function = (timeout_fn) fd_watchdog; + fd_timer.function = (timeout_fn)fd_watchdog; fd_timer.expires = jiffies + HZ / 10; add_timer(&fd_timer); } @@ -1105,25 +1085,23 @@ static void setup_DMA(void) { unsigned long f; -#ifdef FLOPPY_SANITY_CHECK if (raw_cmd->length == 0) { int i; - printk("zero dma transfer size:"); + pr_info("zero dma transfer size:"); for (i = 0; i < raw_cmd->cmd_count; i++) - printk("%x,", raw_cmd->cmd[i]); - printk("\n"); + pr_cont("%x,", raw_cmd->cmd[i]); + pr_cont("\n"); cont->done(0); FDCS->reset = 1; return; } if (((unsigned long)raw_cmd->kernel_data) % 512) { - printk("non aligned address: %p\n", raw_cmd->kernel_data); + pr_info("non aligned address: %p\n", raw_cmd->kernel_data); cont->done(0); FDCS->reset = 1; return; } -#endif f = claim_dma_lock(); fd_disable_dma(); #ifdef fd_dma_setup @@ -1165,7 +1143,7 @@ static int wait_til_ready(void) if (status & STATUS_READY) return status; } - if (!initialising) { + if (initialized) { DPRINT("Getstatus times out (%x) on fdc %d\n", status, fdc); show_floppy(); } @@ -1176,22 +1154,21 @@ static int wait_til_ready(void) /* sends a command byte to the fdc */ static int output_byte(char byte) { - int status; + int status = wait_til_ready(); - if ((status = wait_til_ready()) < 0) + if (status < 0) return -1; - if ((status & (STATUS_READY | STATUS_DIR | STATUS_DMA)) == STATUS_READY) { + + if (is_ready_state(status)) { fd_outb(byte, FD_DATA); -#ifdef FLOPPY_SANITY_CHECK output_log[output_log_pos].data = byte; output_log[output_log_pos].status = status; output_log[output_log_pos].jiffies = jiffies; output_log_pos = (output_log_pos + 1) % OLOGSIZE; -#endif return 0; } FDCS->reset = 1; - if (!initialising) { + if (initialized) { DPRINT("Unable to send byte %x to FDC. Fdc=%x Status=%x\n", byte, fdc, status); show_floppy(); @@ -1199,8 +1176,6 @@ static int output_byte(char byte) return -1; } -#define LAST_OUT(x) if (output_byte(x)<0){ reset_fdc();return;} - /* gets the response from the fdc */ static int result(void) { @@ -1208,14 +1183,13 @@ static int result(void) int status = 0; for (i = 0; i < MAX_REPLIES; i++) { - if ((status = wait_til_ready()) < 0) + status = wait_til_ready(); + if (status < 0) break; status &= STATUS_DIR | STATUS_READY | STATUS_BUSY | STATUS_DMA; if ((status & ~STATUS_BUSY) == STATUS_READY) { -#ifdef FLOPPY_SANITY_CHECK resultjiffies = jiffies; resultsize = i; -#endif return i; } if (status == (STATUS_DIR | STATUS_READY | STATUS_BUSY)) @@ -1223,10 +1197,9 @@ static int result(void) else break; } - if (!initialising) { - DPRINT - ("get result error. Fdc=%d Last status=%x Read bytes=%d\n", - fdc, status, i); + if (initialized) { + DPRINT("get result error. Fdc=%d Last status=%x Read bytes=%d\n", + fdc, status, i); show_floppy(); } FDCS->reset = 1; @@ -1237,12 +1210,14 @@ static int result(void) /* does the fdc need more output? */ static int need_more_output(void) { - int status; + int status = wait_til_ready(); - if ((status = wait_til_ready()) < 0) + if (status < 0) return -1; - if ((status & (STATUS_READY | STATUS_DIR | STATUS_DMA)) == STATUS_READY) + + if (is_ready_state(status)) return MORE_OUTPUT; + return result(); } @@ -1264,9 +1239,12 @@ static inline void perpendicular_mode(void) default: DPRINT("Invalid data rate for perpendicular mode!\n"); cont->done(0); - FDCS->reset = 1; /* convenient way to return to - * redo without to much hassle (deep - * stack et al. */ + FDCS->reset = 1; + /* + * convenient way to return to + * redo without too much hassle + * (deep stack et al.) + */ return; } } else @@ -1366,9 +1344,9 @@ static void fdc_specify(void) /* Convert step rate from microseconds to milliseconds and 4 bits */ srt = 16 - DIV_ROUND_UP(DP->srt * scale_dtr / 1000, NOMINAL_DTR); - if (slow_floppy) { + if (slow_floppy) srt = srt / 4; - } + SUPBOUND(srt, 0xf); INFBOUND(srt, 0); @@ -1415,16 +1393,46 @@ static int fdc_dtr(void) * Pause 5 msec to avoid trouble. (Needs to be 2 jiffies) */ FDCS->dtr = raw_cmd->rate & 3; - return (fd_wait_for_completion(jiffies + 2UL * HZ / 100, - (timeout_fn) floppy_ready)); + return fd_wait_for_completion(jiffies + 2UL * HZ / 100, + (timeout_fn)floppy_ready); } /* fdc_dtr */ static void tell_sector(void) { - printk(": track %d, head %d, sector %d, size %d", - R_TRACK, R_HEAD, R_SECTOR, R_SIZECODE); + pr_cont(": track %d, head %d, sector %d, size %d", + R_TRACK, R_HEAD, R_SECTOR, R_SIZECODE); } /* tell_sector */ +static void print_errors(void) +{ + DPRINT(""); + if (ST0 & ST0_ECE) { + pr_cont("Recalibrate failed!"); + } else if (ST2 & ST2_CRC) { + pr_cont("data CRC error"); + tell_sector(); + } else if (ST1 & ST1_CRC) { + pr_cont("CRC error"); + tell_sector(); + } else if ((ST1 & (ST1_MAM | ST1_ND)) || + (ST2 & ST2_MAM)) { + if (!probing) { + pr_cont("sector not found"); + tell_sector(); + } else + pr_cont("probe failed..."); + } else if (ST2 & ST2_WC) { /* seek error */ + pr_cont("wrong cylinder"); + } else if (ST2 & ST2_BC) { /* cylinder marked as bad */ + pr_cont("bad cylinder"); + } else { + pr_cont("unknown error. ST[0..2] are: 0x%x 0x%x 0x%x", + ST0, ST1, ST2); + tell_sector(); + } + pr_cont("\n"); +} + /* * OK, this error interpreting routine is called after a * DMA read/write has succeeded @@ -1437,7 +1445,7 @@ static int interpret_errors(void) char bad; if (inr != 7) { - DPRINT("-- FDC reply error"); + DPRINT("-- FDC reply error\n"); FDCS->reset = 1; return 1; } @@ -1450,43 +1458,17 @@ static int interpret_errors(void) bad = 1; if (ST1 & ST1_WP) { DPRINT("Drive is write protected\n"); - CLEARF(FD_DISK_WRITABLE); + clear_bit(FD_DISK_WRITABLE_BIT, &DRS->flags); cont->done(0); bad = 2; } else if (ST1 & ST1_ND) { - SETF(FD_NEED_TWADDLE); + set_bit(FD_NEED_TWADDLE_BIT, &DRS->flags); } else if (ST1 & ST1_OR) { if (DP->flags & FTD_MSG) DPRINT("Over/Underrun - retrying\n"); bad = 0; } else if (*errors >= DP->max_errors.reporting) { - DPRINT(""); - if (ST0 & ST0_ECE) { - printk("Recalibrate failed!"); - } else if (ST2 & ST2_CRC) { - printk("data CRC error"); - tell_sector(); - } else if (ST1 & ST1_CRC) { - printk("CRC error"); - tell_sector(); - } else if ((ST1 & (ST1_MAM | ST1_ND)) - || (ST2 & ST2_MAM)) { - if (!probing) { - printk("sector not found"); - tell_sector(); - } else - printk("probe failed..."); - } else if (ST2 & ST2_WC) { /* seek error */ - printk("wrong cylinder"); - } else if (ST2 & ST2_BC) { /* cylinder marked as bad */ - printk("bad cylinder"); - } else { - printk - ("unknown error. ST[0..2] are: 0x%x 0x%x 0x%x", - ST0, ST1, ST2); - tell_sector(); - } - printk("\n"); + print_errors(); } if (ST2 & ST2_WC || ST2 & ST2_BC) /* wrong cylinder => recal */ @@ -1531,9 +1513,9 @@ static void setup_rw_floppy(void) */ if (time_after(ready_date, jiffies + DP->select_delay)) { ready_date -= DP->select_delay; - function = (timeout_fn) floppy_start; + function = (timeout_fn)floppy_start; } else - function = (timeout_fn) setup_rw_floppy; + function = (timeout_fn)setup_rw_floppy; /* wait until the floppy is spinning fast enough */ if (fd_wait_for_completion(ready_date, function)) @@ -1551,7 +1533,7 @@ static void setup_rw_floppy(void) for (i = 0; i < raw_cmd->cmd_count; i++) r |= output_byte(raw_cmd->cmd[i]); - debugt("rw_command: "); + debugt(__func__, "rw_command"); if (r) { cont->error(); @@ -1574,7 +1556,7 @@ static int blind_seek; */ static void seek_interrupt(void) { - debugt("seek interrupt:"); + debugt(__func__, ""); if (inr != 2 || (ST0 & 0xF8) != 0x20) { DPRINT("seek failed\n"); DRS->track = NEED_2_RECAL; @@ -1583,14 +1565,11 @@ static void seek_interrupt(void) return; } if (DRS->track >= 0 && DRS->track != ST1 && !blind_seek) { -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT - ("clearing NEWCHANGE flag because of effective seek\n"); - DPRINT("jiffies=%lu\n", jiffies); - } -#endif - CLEARF(FD_DISK_NEWCHANGE); /* effective seek */ + debug_dcl(DP->flags, + "clearing NEWCHANGE flag because of effective seek\n"); + debug_dcl(DP->flags, "jiffies=%lu\n", jiffies); + clear_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags); + /* effective seek */ DRS->select_date = jiffies; } DRS->track = ST1; @@ -1599,26 +1578,23 @@ static void seek_interrupt(void) static void check_wp(void) { - if (TESTF(FD_VERIFY)) { - /* check write protection */ + if (test_bit(FD_VERIFY_BIT, &DRS->flags)) { + /* check write protection */ output_byte(FD_GETSTATUS); output_byte(UNIT(current_drive)); if (result() != 1) { FDCS->reset = 1; return; } - CLEARF(FD_VERIFY); - CLEARF(FD_NEED_TWADDLE); -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("checking whether disk is write protected\n"); - DPRINT("wp=%x\n", ST3 & 0x40); - } -#endif + clear_bit(FD_VERIFY_BIT, &DRS->flags); + clear_bit(FD_NEED_TWADDLE_BIT, &DRS->flags); + debug_dcl(DP->flags, + "checking whether disk is write protected\n"); + debug_dcl(DP->flags, "wp=%x\n", ST3 & 0x40); if (!(ST3 & 0x40)) - SETF(FD_DISK_WRITABLE); + set_bit(FD_DISK_WRITABLE_BIT, &DRS->flags); else - CLEARF(FD_DISK_WRITABLE); + clear_bit(FD_DISK_WRITABLE_BIT, &DRS->flags); } } @@ -1628,19 +1604,15 @@ static void seek_floppy(void) blind_seek = 0; -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("calling disk change from seek\n"); - } -#endif + debug_dcl(DP->flags, "calling disk change from %s\n", __func__); - if (!TESTF(FD_DISK_NEWCHANGE) && + if (!test_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags) && disk_change(current_drive) && (raw_cmd->flags & FD_RAW_NEED_DISK)) { /* the media changed flag should be cleared after the seek. * If it isn't, this means that there is really no disk in * the drive. */ - SETF(FD_DISK_CHANGED); + set_bit(FD_DISK_CHANGED_BIT, &DRS->flags); cont->done(0); cont->redo(); return; @@ -1648,7 +1620,7 @@ static void seek_floppy(void) if (DRS->track <= NEED_1_RECAL) { recalibrate_floppy(); return; - } else if (TESTF(FD_DISK_NEWCHANGE) && + } else if (test_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags) && (raw_cmd->flags & FD_RAW_NEED_DISK) && (DRS->track <= NO_TRACK || DRS->track == raw_cmd->track)) { /* we seek to clear the media-changed condition. Does anybody @@ -1677,19 +1649,22 @@ static void seek_floppy(void) do_floppy = seek_interrupt; output_byte(FD_SEEK); output_byte(UNIT(current_drive)); - LAST_OUT(track); - debugt("seek command:"); + if (output_byte(track) < 0) { + reset_fdc(); + return; + } + debugt(__func__, ""); } static void recal_interrupt(void) { - debugt("recal interrupt:"); + debugt(__func__, ""); if (inr != 2) FDCS->reset = 1; else if (ST0 & ST0_ECE) { switch (DRS->track) { case NEED_1_RECAL: - debugt("recal interrupt need 1 recal:"); + debugt(__func__, "need 1 recal"); /* after a second recalibrate, we still haven't * reached track 0. Probably no drive. Raise an * error, as failing immediately might upset @@ -1698,25 +1673,21 @@ static void recal_interrupt(void) cont->redo(); return; case NEED_2_RECAL: - debugt("recal interrupt need 2 recal:"); + debugt(__func__, "need 2 recal"); /* If we already did a recalibrate, * and we are not at track 0, this * means we have moved. (The only way * not to move at recalibration is to * be already at track 0.) Clear the * new change flag */ -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT - ("clearing NEWCHANGE flag because of second recalibrate\n"); - } -#endif + debug_dcl(DP->flags, + "clearing NEWCHANGE flag because of second recalibrate\n"); - CLEARF(FD_DISK_NEWCHANGE); + clear_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags); DRS->select_date = jiffies; /* fall through */ default: - debugt("recal interrupt default:"); + debugt(__func__, "default"); /* Recalibrate moves the head by at * most 80 steps. If after one * recalibrate we don't have reached @@ -1738,8 +1709,8 @@ static void print_result(char *message, int inr) DPRINT("%s ", message); if (inr >= 0) for (i = 0; i < inr; i++) - printk("repl[%d]=%x ", i, reply_buffer[i]); - printk("\n"); + pr_cont("repl[%d]=%x ", i, reply_buffer[i]); + pr_cont("\n"); } /* interrupt handler. Note that this can be called externally on the Sparc */ @@ -1760,10 +1731,10 @@ irqreturn_t floppy_interrupt(int irq, void *dev_id) do_floppy = NULL; if (fdc >= N_FDC || FDCS->address == -1) { /* we don't even know which FDC is the culprit */ - printk("DOR0=%x\n", fdc_state[0].dor); - printk("floppy interrupt on bizarre fdc %d\n", fdc); - printk("handler=%p\n", handler); - is_alive("bizarre fdc"); + pr_info("DOR0=%x\n", fdc_state[0].dor); + pr_info("floppy interrupt on bizarre fdc %d\n", fdc); + pr_info("handler=%pf\n", handler); + is_alive(__func__, "bizarre fdc"); return IRQ_NONE; } @@ -1777,7 +1748,7 @@ irqreturn_t floppy_interrupt(int irq, void *dev_id) * activity. */ - do_print = !handler && print_unex && !initialising; + do_print = !handler && print_unex && initialized; inr = result(); if (do_print) @@ -1790,15 +1761,15 @@ irqreturn_t floppy_interrupt(int irq, void *dev_id) if (do_print) print_result("sensei", inr); max_sensei--; - } while ((ST0 & 0x83) != UNIT(current_drive) && inr == 2 - && max_sensei); + } while ((ST0 & 0x83) != UNIT(current_drive) && + inr == 2 && max_sensei); } if (!handler) { FDCS->reset = 1; return IRQ_NONE; } schedule_bh(handler); - is_alive("normal interrupt end"); + is_alive(__func__, "normal interrupt end"); /* FIXME! Was it really for us? */ return IRQ_HANDLED; @@ -1806,10 +1777,11 @@ irqreturn_t floppy_interrupt(int irq, void *dev_id) static void recalibrate_floppy(void) { - debugt("recalibrate floppy:"); + debugt(__func__, ""); do_floppy = recal_interrupt; output_byte(FD_RECALIBRATE); - LAST_OUT(UNIT(current_drive)); + if (output_byte(UNIT(current_drive)) < 0) + reset_fdc(); } /* @@ -1817,10 +1789,10 @@ static void recalibrate_floppy(void) */ static void reset_interrupt(void) { - debugt("reset interrupt:"); + debugt(__func__, ""); result(); /* get the status ready for set_fdc */ if (FDCS->reset) { - printk("reset set in interrupt, calling %p\n", cont->error); + pr_info("reset set in interrupt, calling %pf\n", cont->error); cont->error(); /* a reset just after a reset. BAD! */ } cont->redo(); @@ -1858,53 +1830,49 @@ static void show_floppy(void) { int i; - printk("\n"); - printk("floppy driver state\n"); - printk("-------------------\n"); - printk("now=%lu last interrupt=%lu diff=%lu last called handler=%p\n", - jiffies, interruptjiffies, jiffies - interruptjiffies, - lasthandler); + pr_info("\n"); + pr_info("floppy driver state\n"); + pr_info("-------------------\n"); + pr_info("now=%lu last interrupt=%lu diff=%lu last called handler=%pf\n", + jiffies, interruptjiffies, jiffies - interruptjiffies, + lasthandler); -#ifdef FLOPPY_SANITY_CHECK - printk("timeout_message=%s\n", timeout_message); - printk("last output bytes:\n"); + pr_info("timeout_message=%s\n", timeout_message); + pr_info("last output bytes:\n"); for (i = 0; i < OLOGSIZE; i++) - printk("%2x %2x %lu\n", - output_log[(i + output_log_pos) % OLOGSIZE].data, - output_log[(i + output_log_pos) % OLOGSIZE].status, - output_log[(i + output_log_pos) % OLOGSIZE].jiffies); - printk("last result at %lu\n", resultjiffies); - printk("last redo_fd_request at %lu\n", lastredo); - for (i = 0; i < resultsize; i++) { - printk("%2x ", reply_buffer[i]); - } - printk("\n"); -#endif - - printk("status=%x\n", fd_inb(FD_STATUS)); - printk("fdc_busy=%lu\n", fdc_busy); + pr_info("%2x %2x %lu\n", + output_log[(i + output_log_pos) % OLOGSIZE].data, + output_log[(i + output_log_pos) % OLOGSIZE].status, + output_log[(i + output_log_pos) % OLOGSIZE].jiffies); + pr_info("last result at %lu\n", resultjiffies); + pr_info("last redo_fd_request at %lu\n", lastredo); + print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 1, + reply_buffer, resultsize, true); + + pr_info("status=%x\n", fd_inb(FD_STATUS)); + pr_info("fdc_busy=%lu\n", fdc_busy); if (do_floppy) - printk("do_floppy=%p\n", do_floppy); + pr_info("do_floppy=%pf\n", do_floppy); if (work_pending(&floppy_work)) - printk("floppy_work.func=%p\n", floppy_work.func); + pr_info("floppy_work.func=%pf\n", floppy_work.func); if (timer_pending(&fd_timer)) - printk("fd_timer.function=%p\n", fd_timer.function); + pr_info("fd_timer.function=%pf\n", fd_timer.function); if (timer_pending(&fd_timeout)) { - printk("timer_function=%p\n", fd_timeout.function); - printk("expires=%lu\n", fd_timeout.expires - jiffies); - printk("now=%lu\n", jiffies); - } - printk("cont=%p\n", cont); - printk("current_req=%p\n", current_req); - printk("command_status=%d\n", command_status); - printk("\n"); + pr_info("timer_function=%pf\n", fd_timeout.function); + pr_info("expires=%lu\n", fd_timeout.expires - jiffies); + pr_info("now=%lu\n", jiffies); + } + pr_info("cont=%p\n", cont); + pr_info("current_req=%p\n", current_req); + pr_info("command_status=%d\n", command_status); + pr_info("\n"); } static void floppy_shutdown(unsigned long data) { unsigned long flags; - if (!initialising) + if (initialized) show_floppy(); cancel_activity(); @@ -1916,17 +1884,17 @@ static void floppy_shutdown(unsigned long data) /* avoid dma going to a random drive after shutdown */ - if (!initialising) + if (initialized) DPRINT("floppy timeout called\n"); FDCS->reset = 1; if (cont) { cont->done(0); cont->redo(); /* this will recall reset when needed */ } else { - printk("no cont in shutdown!\n"); + pr_info("no cont in shutdown!\n"); process_fd_request(); } - is_alive("floppy shutdown"); + is_alive(__func__, ""); } /* start motor, check media-changed condition and write protection */ @@ -1954,27 +1922,26 @@ static int start_motor(void (*function)(void)) set_dor(fdc, mask, data); /* wait_for_completion also schedules reset if needed. */ - return (fd_wait_for_completion(DRS->select_date + DP->select_delay, - (timeout_fn) function)); + return fd_wait_for_completion(DRS->select_date + DP->select_delay, + (timeout_fn)function); } static void floppy_ready(void) { - CHECK_RESET; + if (FDCS->reset) { + reset_fdc(); + return; + } if (start_motor(floppy_ready)) return; if (fdc_dtr()) return; -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("calling disk change from floppy_ready\n"); - } -#endif + debug_dcl(DP->flags, "calling disk change from floppy_ready\n"); if (!(raw_cmd->flags & FD_RAW_NO_MOTOR) && disk_change(current_drive) && !DP->select_delay) - twaddle(); /* this clears the dcl on certain drive/controller - * combinations */ + twaddle(); /* this clears the dcl on certain + * drive/controller combinations */ #ifdef fd_chose_dma_mode if ((raw_cmd->flags & FD_RAW_READ) || (raw_cmd->flags & FD_RAW_WRITE)) { @@ -1998,15 +1965,11 @@ static void floppy_ready(void) static void floppy_start(void) { - reschedule_timeout(current_reqD, "floppy start", 0); + reschedule_timeout(current_reqD, "floppy start"); scandrives(); -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("setting NEWCHANGE in floppy_start\n"); - } -#endif - SETF(FD_DISK_NEWCHANGE); + debug_dcl(DP->flags, "setting NEWCHANGE in floppy_start\n"); + set_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags); floppy_ready(); } @@ -2026,7 +1989,7 @@ static void floppy_start(void) static void do_wakeup(void) { - reschedule_timeout(MAXTIMEOUT, "do wakeup", 0); + reschedule_timeout(MAXTIMEOUT, "do wakeup"); cont = NULL; command_status += 2; wake_up(&command_done); @@ -2046,7 +2009,7 @@ static struct cont_t intr_cont = { .done = (done_f)empty }; -static int wait_til_done(void (*handler)(void), int interruptible) +static int wait_til_done(void (*handler)(void), bool interruptible) { int ret; @@ -2064,7 +2027,7 @@ static int wait_til_done(void (*handler)(void), int interruptible) if (command_status >= 2 || !NO_SIGNAL) break; - is_alive("wait_til_done"); + is_alive(__func__, ""); schedule(); } @@ -2180,9 +2143,9 @@ static void format_interrupt(void) cont->redo(); } -#define CODE2SIZE (ssize = ((1 << SIZECODE) + 3) >> 2) -#define FM_MODE(x,y) ((y) & ~(((x)->rate & 0x80) >>1)) +#define FM_MODE(x, y) ((y) & ~(((x)->rate & 0x80) >> 1)) #define CT(x) ((x) | 0xc0) + static void setup_format_params(int track) { int n; @@ -2197,8 +2160,8 @@ static void setup_format_params(int track) raw_cmd = &default_raw_cmd; raw_cmd->track = track; - raw_cmd->flags = FD_RAW_WRITE | FD_RAW_INTR | FD_RAW_SPIN | - FD_RAW_NEED_DISK | FD_RAW_NEED_SEEK; + raw_cmd->flags = (FD_RAW_WRITE | FD_RAW_INTR | FD_RAW_SPIN | + FD_RAW_NEED_DISK | FD_RAW_NEED_SEEK); raw_cmd->rate = _floppy->rate & 0x43; raw_cmd->cmd_count = NR_F; COMMAND = FM_MODE(_floppy, FD_FORMAT); @@ -2257,7 +2220,7 @@ static void redo_format(void) buffer_track = -1; setup_format_params(format_req.track << STRETCH(_floppy)); floppy_start(); - debugt("queue format request"); + debugt(__func__, "queue format request"); } static struct cont_t format_cont = { @@ -2271,7 +2234,9 @@ static int do_format(int drive, struct format_descr *tmp_format_req) { int ret; - LOCK_FDC(drive, 1); + if (lock_fdc(drive, true)) + return -EINTR; + set_floppy(drive); if (!_floppy || _floppy->track > DP->tracks || @@ -2286,7 +2251,9 @@ static int do_format(int drive, struct format_descr *tmp_format_req) format_errors = 0; cont = &format_cont; errors = &format_errors; - IWAIT(redo_format); + ret = wait_til_done(redo_format, true); + if (ret == -EINTR) + return -EINTR; process_fd_request(); return ret; } @@ -2320,12 +2287,14 @@ static void request_done(int uptodate) struct request *req = current_req; unsigned long flags; int block; + char msg[sizeof("request done ") + sizeof(int) * 3]; probing = 0; - reschedule_timeout(MAXTIMEOUT, "request done %d", uptodate); + snprintf(msg, sizeof(msg), "request done %d", uptodate); + reschedule_timeout(MAXTIMEOUT, msg); if (!req) { - printk("floppy.c: no request in request_done\n"); + pr_info("floppy.c: no request in request_done\n"); return; } @@ -2377,7 +2346,7 @@ static void rw_interrupt(void) DRS->first_read_date = jiffies; nr_sectors = 0; - CODE2SIZE; + ssize = DIV_ROUND_UP(1 << SIZECODE, 4); if (ST1 & ST1_EOC) eoc = 1; @@ -2393,20 +2362,18 @@ static void rw_interrupt(void) R_HEAD - HEAD) * SECT_PER_TRACK + R_SECTOR - SECTOR + eoc) << SIZECODE >> 2; -#ifdef FLOPPY_SANITY_CHECK if (nr_sectors / ssize > DIV_ROUND_UP(in_sector_offset + current_count_sectors, ssize)) { DPRINT("long rw: %x instead of %lx\n", nr_sectors, current_count_sectors); - printk("rs=%d s=%d\n", R_SECTOR, SECTOR); - printk("rh=%d h=%d\n", R_HEAD, HEAD); - printk("rt=%d t=%d\n", R_TRACK, TRACK); - printk("heads=%d eoc=%d\n", heads, eoc); - printk("spt=%d st=%d ss=%d\n", SECT_PER_TRACK, - fsector_t, ssize); - printk("in_sector_offset=%d\n", in_sector_offset); + pr_info("rs=%d s=%d\n", R_SECTOR, SECTOR); + pr_info("rh=%d h=%d\n", R_HEAD, HEAD); + pr_info("rt=%d t=%d\n", R_TRACK, TRACK); + pr_info("heads=%d eoc=%d\n", heads, eoc); + pr_info("spt=%d st=%d ss=%d\n", + SECT_PER_TRACK, fsector_t, ssize); + pr_info("in_sector_offset=%d\n", in_sector_offset); } -#endif nr_sectors -= in_sector_offset; INFBOUND(nr_sectors, 0); @@ -2511,19 +2478,17 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) blk_rq_sectors(current_req)); remaining = current_count_sectors << 9; -#ifdef FLOPPY_SANITY_CHECK if (remaining > blk_rq_bytes(current_req) && CT(COMMAND) == FD_WRITE) { DPRINT("in copy buffer\n"); - printk("current_count_sectors=%ld\n", current_count_sectors); - printk("remaining=%d\n", remaining >> 9); - printk("current_req->nr_sectors=%u\n", - blk_rq_sectors(current_req)); - printk("current_req->current_nr_sectors=%u\n", - blk_rq_cur_sectors(current_req)); - printk("max_sector=%d\n", max_sector); - printk("ssize=%d\n", ssize); + pr_info("current_count_sectors=%ld\n", current_count_sectors); + pr_info("remaining=%d\n", remaining >> 9); + pr_info("current_req->nr_sectors=%u\n", + blk_rq_sectors(current_req)); + pr_info("current_req->current_nr_sectors=%u\n", + blk_rq_cur_sectors(current_req)); + pr_info("max_sector=%d\n", max_sector); + pr_info("ssize=%d\n", ssize); } -#endif buffer_max = max(max_sector, buffer_max); @@ -2539,26 +2504,24 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) SUPBOUND(size, remaining); buffer = page_address(bv->bv_page) + bv->bv_offset; -#ifdef FLOPPY_SANITY_CHECK if (dma_buffer + size > floppy_track_buffer + (max_buffer_sectors << 10) || dma_buffer < floppy_track_buffer) { DPRINT("buffer overrun in copy buffer %d\n", - (int)((floppy_track_buffer - - dma_buffer) >> 9)); - printk("fsector_t=%d buffer_min=%d\n", - fsector_t, buffer_min); - printk("current_count_sectors=%ld\n", - current_count_sectors); + (int)((floppy_track_buffer - dma_buffer) >> 9)); + pr_info("fsector_t=%d buffer_min=%d\n", + fsector_t, buffer_min); + pr_info("current_count_sectors=%ld\n", + current_count_sectors); if (CT(COMMAND) == FD_READ) - printk("read\n"); + pr_info("read\n"); if (CT(COMMAND) == FD_WRITE) - printk("write\n"); + pr_info("write\n"); break; } if (((unsigned long)buffer) % 512) DPRINT("%p buffer not aligned\n", buffer); -#endif + if (CT(COMMAND) == FD_READ) memcpy(buffer, dma_buffer, size); else @@ -2567,13 +2530,11 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) remaining -= size; dma_buffer += size; } -#ifdef FLOPPY_SANITY_CHECK if (remaining) { if (remaining > 0) max_sector -= remaining >> 9; DPRINT("weirdness: remaining %d\n", remaining >> 9); } -#endif } /* work around a bug in pseudo DMA @@ -2593,15 +2554,14 @@ static void virtualdmabug_workaround(void) hard_sectors = raw_cmd->length >> (7 + SIZECODE); end_sector = SECTOR + hard_sectors - 1; -#ifdef FLOPPY_SANITY_CHECK if (end_sector > SECT_PER_TRACK) { - printk("too many sectors %d > %d\n", - end_sector, SECT_PER_TRACK); + pr_info("too many sectors %d > %d\n", + end_sector, SECT_PER_TRACK); return; } -#endif - SECT_PER_TRACK = end_sector; /* make sure SECT_PER_TRACK points - * to end of transfer */ + SECT_PER_TRACK = end_sector; + /* make sure SECT_PER_TRACK + * points to end of transfer */ } } @@ -2624,7 +2584,7 @@ static int make_raw_rw_request(void) int ssize; if (max_buffer_sectors == 0) { - printk("VFS: Block I/O scheduled on unopened device\n"); + pr_info("VFS: Block I/O scheduled on unopened device\n"); return 0; } @@ -2641,7 +2601,7 @@ static int make_raw_rw_request(void) raw_cmd->flags |= FD_RAW_WRITE; COMMAND = FM_MODE(_floppy, FD_WRITE); } else { - DPRINT("make_raw_rw_request: unknown command\n"); + DPRINT("%s: unknown command\n", __func__); return 0; } @@ -2659,7 +2619,8 @@ static int make_raw_rw_request(void) HEAD = fsector_t / _floppy->sect; if (((_floppy->stretch & (FD_SWAPSIDES | FD_SECTBASEMASK)) || - TESTF(FD_NEED_TWADDLE)) && fsector_t < _floppy->sect) + test_bit(FD_NEED_TWADDLE_BIT, &DRS->flags)) && + fsector_t < _floppy->sect) max_sector = _floppy->sect; /* 2M disks have phantom sectors on the first track */ @@ -2685,7 +2646,7 @@ static int make_raw_rw_request(void) raw_cmd->track = TRACK << STRETCH(_floppy); DR_SELECT = UNIT(current_drive) + PH_HEAD(_floppy, HEAD); GAP = _floppy->gap; - CODE2SIZE; + ssize = DIV_ROUND_UP(1 << SIZECODE, 4); SECT_PER_TRACK = _floppy->sect << 2 >> SIZECODE; SECTOR = ((fsector_t % _floppy->sect) << 2 >> SIZECODE) + FD_SECTBASE(_floppy); @@ -2730,8 +2691,10 @@ static int make_raw_rw_request(void) } } else if (in_sector_offset || blk_rq_sectors(current_req) < ssize) { if (CT(COMMAND) == FD_WRITE) { - if (fsector_t + blk_rq_sectors(current_req) > ssize && - fsector_t + blk_rq_sectors(current_req) < ssize + ssize) + unsigned int sectors; + + sectors = fsector_t + blk_rq_sectors(current_req); + if (sectors > ssize && sectors < ssize + ssize) max_size = ssize + ssize; else max_size = ssize; @@ -2752,12 +2715,10 @@ static int make_raw_rw_request(void) * on a 64 bit machine! */ max_size = buffer_chain_size(); - dma_limit = - (MAX_DMA_ADDRESS - - ((unsigned long)current_req->buffer)) >> 9; - if ((unsigned long)max_size > dma_limit) { + dma_limit = (MAX_DMA_ADDRESS - + ((unsigned long)current_req->buffer)) >> 9; + if ((unsigned long)max_size > dma_limit) max_size = dma_limit; - } /* 64 kb boundaries */ if (CROSS_64KB(current_req->buffer, max_size << 9)) max_size = (K_64 - @@ -2773,16 +2734,16 @@ static int make_raw_rw_request(void) */ if (!direct || (indirect * 2 > direct * 3 && - *errors < DP->max_errors.read_track && ((!probing - || (DP->read_track & (1 << DRS->probed_format)))))) { + *errors < DP->max_errors.read_track && + ((!probing || + (DP->read_track & (1 << DRS->probed_format)))))) { max_size = blk_rq_sectors(current_req); } else { raw_cmd->kernel_data = current_req->buffer; raw_cmd->length = current_count_sectors << 9; if (raw_cmd->length == 0) { - DPRINT - ("zero dma transfer attempted from make_raw_request\n"); - DPRINT("indirect=%d direct=%d fsector_t=%d", + DPRINT("%s: zero dma transfer attempted\n", __func__); + DPRINT("indirect=%d direct=%d fsector_t=%d\n", indirect, direct, fsector_t); return 0; } @@ -2802,25 +2763,22 @@ static int make_raw_rw_request(void) ((CT(COMMAND) == FD_READ || (!in_sector_offset && blk_rq_sectors(current_req) >= ssize)) && max_sector > 2 * max_buffer_sectors + buffer_min && - max_size + fsector_t > 2 * max_buffer_sectors + buffer_min) - /* not enough space */ - ) { + max_size + fsector_t > 2 * max_buffer_sectors + buffer_min)) { + /* not enough space */ buffer_track = -1; buffer_drive = current_drive; buffer_max = buffer_min = aligned_sector_t; } raw_cmd->kernel_data = floppy_track_buffer + - ((aligned_sector_t - buffer_min) << 9); + ((aligned_sector_t - buffer_min) << 9); if (CT(COMMAND) == FD_WRITE) { /* copy write buffer to track buffer. * if we get here, we know that the write * is either aligned or the data already in the buffer * (buffer will be overwritten) */ -#ifdef FLOPPY_SANITY_CHECK if (in_sector_offset && buffer_track == -1) DPRINT("internal error offset !=0 on write\n"); -#endif buffer_track = raw_cmd->track; buffer_drive = current_drive; copy_buffer(ssize, max_sector, @@ -2834,7 +2792,6 @@ static int make_raw_rw_request(void) raw_cmd->length = in_sector_offset + current_count_sectors; raw_cmd->length = ((raw_cmd->length - 1) | (ssize - 1)) + 1; raw_cmd->length <<= 9; -#ifdef FLOPPY_SANITY_CHECK if ((raw_cmd->length < current_count_sectors << 9) || (raw_cmd->kernel_data != current_req->buffer && CT(COMMAND) == FD_WRITE && @@ -2845,19 +2802,19 @@ static int make_raw_rw_request(void) DPRINT("fractionary current count b=%lx s=%lx\n", raw_cmd->length, current_count_sectors); if (raw_cmd->kernel_data != current_req->buffer) - printk("addr=%d, length=%ld\n", - (int)((raw_cmd->kernel_data - - floppy_track_buffer) >> 9), - current_count_sectors); - printk("st=%d ast=%d mse=%d msi=%d\n", - fsector_t, aligned_sector_t, max_sector, max_size); - printk("ssize=%x SIZECODE=%d\n", ssize, SIZECODE); - printk("command=%x SECTOR=%d HEAD=%d, TRACK=%d\n", - COMMAND, SECTOR, HEAD, TRACK); - printk("buffer drive=%d\n", buffer_drive); - printk("buffer track=%d\n", buffer_track); - printk("buffer_min=%d\n", buffer_min); - printk("buffer_max=%d\n", buffer_max); + pr_info("addr=%d, length=%ld\n", + (int)((raw_cmd->kernel_data - + floppy_track_buffer) >> 9), + current_count_sectors); + pr_info("st=%d ast=%d mse=%d msi=%d\n", + fsector_t, aligned_sector_t, max_sector, max_size); + pr_info("ssize=%x SIZECODE=%d\n", ssize, SIZECODE); + pr_info("command=%x SECTOR=%d HEAD=%d, TRACK=%d\n", + COMMAND, SECTOR, HEAD, TRACK); + pr_info("buffer drive=%d\n", buffer_drive); + pr_info("buffer track=%d\n", buffer_track); + pr_info("buffer_min=%d\n", buffer_min); + pr_info("buffer_max=%d\n", buffer_max); return 0; } @@ -2868,14 +2825,14 @@ static int make_raw_rw_request(void) raw_cmd->kernel_data + raw_cmd->length > floppy_track_buffer + (max_buffer_sectors << 10)) { DPRINT("buffer overrun in schedule dma\n"); - printk("fsector_t=%d buffer_min=%d current_count=%ld\n", - fsector_t, buffer_min, raw_cmd->length >> 9); - printk("current_count_sectors=%ld\n", - current_count_sectors); + pr_info("fsector_t=%d buffer_min=%d current_count=%ld\n", + fsector_t, buffer_min, raw_cmd->length >> 9); + pr_info("current_count_sectors=%ld\n", + current_count_sectors); if (CT(COMMAND) == FD_READ) - printk("read\n"); + pr_info("read\n"); if (CT(COMMAND) == FD_WRITE) - printk("write\n"); + pr_info("write\n"); return 0; } } else if (raw_cmd->length > blk_rq_bytes(current_req) || @@ -2884,14 +2841,13 @@ static int make_raw_rw_request(void) return 0; } else if (raw_cmd->length < current_count_sectors << 9) { DPRINT("more sectors than bytes\n"); - printk("bytes=%ld\n", raw_cmd->length >> 9); - printk("sectors=%ld\n", current_count_sectors); + pr_info("bytes=%ld\n", raw_cmd->length >> 9); + pr_info("sectors=%ld\n", current_count_sectors); } if (raw_cmd->length == 0) { DPRINT("zero dma transfer attempted from make_raw_request\n"); return 0; } -#endif virtualdmabug_workaround(); return 2; @@ -2899,7 +2855,6 @@ static int make_raw_rw_request(void) static void redo_fd_request(void) { -#define REPEAT {request_done(0); continue; } int drive; int tmp; @@ -2907,63 +2862,63 @@ static void redo_fd_request(void) if (current_drive < N_DRIVE) floppy_off(current_drive); - for (;;) { - if (!current_req) { - struct request *req; - - spin_lock_irq(floppy_queue->queue_lock); - req = blk_fetch_request(floppy_queue); - spin_unlock_irq(floppy_queue->queue_lock); - if (!req) { - do_floppy = NULL; - unlock_fdc(); - return; - } - current_req = req; - } - drive = (long)current_req->rq_disk->private_data; - set_fdc(drive); - reschedule_timeout(current_reqD, "redo fd request", 0); +do_request: + if (!current_req) { + struct request *req; - set_floppy(drive); - raw_cmd = &default_raw_cmd; - raw_cmd->flags = 0; - if (start_motor(redo_fd_request)) + spin_lock_irq(floppy_queue->queue_lock); + req = blk_fetch_request(floppy_queue); + spin_unlock_irq(floppy_queue->queue_lock); + if (!req) { + do_floppy = NULL; + unlock_fdc(); return; - disk_change(current_drive); - if (test_bit(current_drive, &fake_change) || - TESTF(FD_DISK_CHANGED)) { - DPRINT("disk absent or changed during operation\n"); - REPEAT; - } - if (!_floppy) { /* Autodetection */ - if (!probing) { - DRS->probed_format = 0; - if (next_valid_format()) { - DPRINT("no autodetectable formats\n"); - _floppy = NULL; - REPEAT; - } - } - probing = 1; - _floppy = - floppy_type + DP->autodetect[DRS->probed_format]; - } else - probing = 0; - errors = &(current_req->errors); - tmp = make_raw_rw_request(); - if (tmp < 2) { - request_done(tmp); - continue; } + current_req = req; + } + drive = (long)current_req->rq_disk->private_data; + set_fdc(drive); + reschedule_timeout(current_reqD, "redo fd request"); - if (TESTF(FD_NEED_TWADDLE)) - twaddle(); - schedule_bh(floppy_start); - debugt("queue fd request"); + set_floppy(drive); + raw_cmd = &default_raw_cmd; + raw_cmd->flags = 0; + if (start_motor(redo_fd_request)) return; + + disk_change(current_drive); + if (test_bit(current_drive, &fake_change) || + test_bit(FD_DISK_CHANGED_BIT, &DRS->flags)) { + DPRINT("disk absent or changed during operation\n"); + request_done(0); + goto do_request; + } + if (!_floppy) { /* Autodetection */ + if (!probing) { + DRS->probed_format = 0; + if (next_valid_format()) { + DPRINT("no autodetectable formats\n"); + _floppy = NULL; + request_done(0); + goto do_request; + } + } + probing = 1; + _floppy = floppy_type + DP->autodetect[DRS->probed_format]; + } else + probing = 0; + errors = &(current_req->errors); + tmp = make_raw_rw_request(); + if (tmp < 2) { + request_done(tmp); + goto do_request; } -#undef REPEAT + + if (test_bit(FD_NEED_TWADDLE_BIT, &DRS->flags)) + twaddle(); + schedule_bh(floppy_start); + debugt(__func__, "queue fd request"); + return; } static struct cont_t rw_cont = { @@ -2979,30 +2934,30 @@ static void process_fd_request(void) schedule_bh(redo_fd_request); } -static void do_fd_request(struct request_queue * q) +static void do_fd_request(struct request_queue *q) { if (max_buffer_sectors == 0) { - printk("VFS: do_fd_request called on non-open device\n"); + pr_info("VFS: %s called on non-open device\n", __func__); return; } if (usage_count == 0) { - printk("warning: usage count=0, current_req=%p exiting\n", - current_req); - printk("sect=%ld type=%x flags=%x\n", - (long)blk_rq_pos(current_req), current_req->cmd_type, - current_req->cmd_flags); + pr_info("warning: usage count=0, current_req=%p exiting\n", + current_req); + pr_info("sect=%ld type=%x flags=%x\n", + (long)blk_rq_pos(current_req), current_req->cmd_type, + current_req->cmd_flags); return; } if (test_bit(0, &fdc_busy)) { /* fdc busy, this new request will be treated when the current one is done */ - is_alive("do fd request, old request running"); + is_alive(__func__, "old request running"); return; } - lock_fdc(MAXTIMEOUT, 0); + lock_fdc(MAXTIMEOUT, false); process_fd_request(); - is_alive("do fd request"); + is_alive(__func__, ""); } static struct cont_t poll_cont = { @@ -3012,24 +2967,18 @@ static struct cont_t poll_cont = { .done = generic_done }; -static int poll_drive(int interruptible, int flag) +static int poll_drive(bool interruptible, int flag) { - int ret; - /* no auto-sense, just clear dcl */ raw_cmd = &default_raw_cmd; raw_cmd->flags = flag; raw_cmd->track = 0; raw_cmd->cmd_count = 0; cont = &poll_cont; -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("setting NEWCHANGE in poll_drive\n"); - } -#endif - SETF(FD_DISK_NEWCHANGE); - WAIT(floppy_ready); - return ret; + debug_dcl(DP->flags, "setting NEWCHANGE in poll_drive\n"); + set_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags); + + return wait_til_done(floppy_ready, interruptible); } /* @@ -3039,7 +2988,7 @@ static int poll_drive(int interruptible, int flag) static void reset_intr(void) { - printk("weird, reset interrupt called\n"); + pr_info("weird, reset interrupt called\n"); } static struct cont_t reset_cont = { @@ -3049,20 +2998,23 @@ static struct cont_t reset_cont = { .done = generic_done }; -static int user_reset_fdc(int drive, int arg, int interruptible) +static int user_reset_fdc(int drive, int arg, bool interruptible) { int ret; - ret = 0; - LOCK_FDC(drive, interruptible); + if (lock_fdc(drive, interruptible)) + return -EINTR; + if (arg == FD_RESET_ALWAYS) FDCS->reset = 1; if (FDCS->reset) { cont = &reset_cont; - WAIT(reset_fdc); + ret = wait_til_done(reset_fdc, interruptible); + if (ret == -EINTR) + return -EINTR; } process_fd_request(); - return ret; + return 0; } /* @@ -3075,17 +3027,12 @@ static inline int fd_copyout(void __user *param, const void *address, return copy_to_user(param, address, size) ? -EFAULT : 0; } -static inline int fd_copyin(void __user *param, void *address, unsigned long size) +static inline int fd_copyin(void __user *param, void *address, + unsigned long size) { return copy_from_user(address, param, size) ? -EFAULT : 0; } -#define _COPYOUT(x) (copy_to_user((void __user *)param, &(x), sizeof(x)) ? -EFAULT : 0) -#define _COPYIN(x) (copy_from_user(&(x), (void __user *)param, sizeof(x)) ? -EFAULT : 0) - -#define COPYOUT(x) ECALL(_COPYOUT(x)) -#define COPYIN(x) ECALL(_COPYIN(x)) - static inline const char *drive_name(int type, int drive) { struct floppy_struct *floppy; @@ -3156,23 +3103,29 @@ static struct cont_t raw_cmd_cont = { .done = raw_cmd_done }; -static inline int raw_cmd_copyout(int cmd, char __user *param, +static inline int raw_cmd_copyout(int cmd, void __user *param, struct floppy_raw_cmd *ptr) { int ret; while (ptr) { - COPYOUT(*ptr); + ret = copy_to_user(param, ptr, sizeof(*ptr)); + if (ret) + return -EFAULT; param += sizeof(struct floppy_raw_cmd); if ((ptr->flags & FD_RAW_READ) && ptr->buffer_length) { - if (ptr->length >= 0 - && ptr->length <= ptr->buffer_length) - ECALL(fd_copyout - (ptr->data, ptr->kernel_data, - ptr->buffer_length - ptr->length)); + if (ptr->length >= 0 && + ptr->length <= ptr->buffer_length) { + long length = ptr->buffer_length - ptr->length; + ret = fd_copyout(ptr->data, ptr->kernel_data, + length); + if (ret) + return ret; + } } ptr = ptr->next; } + return 0; } @@ -3195,7 +3148,7 @@ static void raw_cmd_free(struct floppy_raw_cmd **ptr) } } -static inline int raw_cmd_copyin(int cmd, char __user *param, +static inline int raw_cmd_copyin(int cmd, void __user *param, struct floppy_raw_cmd **rcmd) { struct floppy_raw_cmd *ptr; @@ -3203,17 +3156,19 @@ static inline int raw_cmd_copyin(int cmd, char __user *param, int i; *rcmd = NULL; - while (1) { - ptr = (struct floppy_raw_cmd *) - kmalloc(sizeof(struct floppy_raw_cmd), GFP_USER); - if (!ptr) - return -ENOMEM; - *rcmd = ptr; - COPYIN(*ptr); - ptr->next = NULL; - ptr->buffer_length = 0; - param += sizeof(struct floppy_raw_cmd); - if (ptr->cmd_count > 33) + +loop: + ptr = kmalloc(sizeof(struct floppy_raw_cmd), GFP_USER); + if (!ptr) + return -ENOMEM; + *rcmd = ptr; + ret = copy_from_user(ptr, param, sizeof(*ptr)); + if (ret) + return -EFAULT; + ptr->next = NULL; + ptr->buffer_length = 0; + param += sizeof(struct floppy_raw_cmd); + if (ptr->cmd_count > 33) /* the command may now also take up the space * initially intended for the reply & the * reply count. Needed for long 82078 commands @@ -3222,31 +3177,35 @@ static inline int raw_cmd_copyin(int cmd, char __user *param, * 16 bytes for a structure, you'll one day * discover that you really need 17... */ + return -EINVAL; + + for (i = 0; i < 16; i++) + ptr->reply[i] = 0; + ptr->resultcode = 0; + ptr->kernel_data = NULL; + + if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) { + if (ptr->length <= 0) return -EINVAL; + ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length); + fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length); + if (!ptr->kernel_data) + return -ENOMEM; + ptr->buffer_length = ptr->length; + } + if (ptr->flags & FD_RAW_WRITE) { + ret = fd_copyin(ptr->data, ptr->kernel_data, ptr->length); + if (ret) + return ret; + } - for (i = 0; i < 16; i++) - ptr->reply[i] = 0; - ptr->resultcode = 0; - ptr->kernel_data = NULL; - - if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) { - if (ptr->length <= 0) - return -EINVAL; - ptr->kernel_data = - (char *)fd_dma_mem_alloc(ptr->length); - fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length); - if (!ptr->kernel_data) - return -ENOMEM; - ptr->buffer_length = ptr->length; - } - if (ptr->flags & FD_RAW_WRITE) - ECALL(fd_copyin(ptr->data, ptr->kernel_data, - ptr->length)); + if (ptr->flags & FD_RAW_MORE) { rcmd = &(ptr->next); - if (!(ptr->flags & FD_RAW_MORE)) - return 0; ptr->rate &= 0x43; + goto loop; } + + return 0; } static int raw_cmd_ioctl(int cmd, void __user *param) @@ -3283,12 +3242,8 @@ static int raw_cmd_ioctl(int cmd, void __user *param) raw_cmd = my_raw_cmd; cont = &raw_cmd_cont; - ret = wait_til_done(floppy_start, 1); -#ifdef DCL_DEBUG - if (DP->flags & FD_DEBUG) { - DPRINT("calling disk change from raw_cmd ioctl\n"); - } -#endif + ret = wait_til_done(floppy_start, true); + debug_dcl(DP->flags, "calling disk change from raw_cmd ioctl\n"); if (ret != -EINTR && FDCS->reset) ret = -EIO; @@ -3327,7 +3282,7 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g, if (!capable(CAP_SYS_ADMIN)) return -EPERM; mutex_lock(&open_lock); - if (lock_fdc(drive, 1)) { + if (lock_fdc(drive, true)) { mutex_unlock(&open_lock); return -EINTR; } @@ -3346,11 +3301,15 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g, mutex_unlock(&open_lock); } else { int oldStretch; - LOCK_FDC(drive, 1); - if (cmd != FDDEFPRM) + + if (lock_fdc(drive, true)) + return -EINTR; + if (cmd != FDDEFPRM) { /* notice a disk change immediately, else * we lose our settings immediately*/ - CALL(poll_drive(1, FD_RAW_NEED_DISK)); + if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR) + return -EINTR; + } oldStretch = g->stretch; user_params[drive] = *g; if (buffer_drive == drive) @@ -3415,7 +3374,7 @@ static inline int normalize_ioctl(int *cmd, int *size) *size = _IOC_SIZE(*cmd); *cmd = ioctl_table[i]; if (*size > _IOC_SIZE(*cmd)) { - printk("ioctl not yet supported\n"); + pr_info("ioctl not yet supported\n"); return -EFAULT; } return 0; @@ -3429,8 +3388,10 @@ static int get_floppy_geometry(int drive, int type, struct floppy_struct **g) if (type) *g = &floppy_type[type]; else { - LOCK_FDC(drive, 0); - CALL(poll_drive(0, 0)); + if (lock_fdc(drive, false)) + return -EINTR; + if (poll_drive(false, 0) == -EINTR) + return -EINTR; process_fd_request(); *g = current_type[drive]; } @@ -3459,10 +3420,6 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo) static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long param) { -#define FD_IOCTL_ALLOWED (mode & (FMODE_WRITE|FMODE_WRITE_IOCTL)) -#define OUT(c,x) case c: outparam = (const char *) (x); break -#define IN(c,x,tag) case c: *(x) = inparam. tag ; return 0 - int drive = (long)bdev->bd_disk->private_data; int type = ITYPE(UDRS->fd_device); int i; @@ -3474,26 +3431,28 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, struct floppy_max_errors max_errors; struct floppy_drive_params dp; } inparam; /* parameters coming from user space */ - const char *outparam; /* parameters passed back to user space */ + const void *outparam; /* parameters passed back to user space */ /* convert compatibility eject ioctls into floppy eject ioctl. * We do this in order to provide a means to eject floppy disks before * installing the new fdutils package */ if (cmd == CDROMEJECT || /* CD-ROM eject */ - cmd == 0x6470 /* SunOS floppy eject */ ) { + cmd == 0x6470) { /* SunOS floppy eject */ DPRINT("obsolete eject ioctl\n"); DPRINT("please use floppycontrol --eject\n"); cmd = FDEJECT; } - /* convert the old style command into a new style command */ - if ((cmd & 0xff00) == 0x0200) { - ECALL(normalize_ioctl(&cmd, &size)); - } else + if (!((cmd & 0xff00) == 0x0200)) return -EINVAL; + /* convert the old style command into a new style command */ + ret = normalize_ioctl(&cmd, &size); + if (ret) + return ret; + /* permission checks */ - if (((cmd & 0x40) && !FD_IOCTL_ALLOWED) || + if (((cmd & 0x40) && !(mode & (FMODE_WRITE | FMODE_WRITE_IOCTL))) || ((cmd & 0x80) && !capable(CAP_SYS_ADMIN))) return -EPERM; @@ -3501,129 +3460,142 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, return -EINVAL; /* copyin */ - CLEARSTRUCT(&inparam); - if (_IOC_DIR(cmd) & _IOC_WRITE) - ECALL(fd_copyin((void __user *)param, &inparam, size)) - - switch (cmd) { - case FDEJECT: - if (UDRS->fd_ref != 1) - /* somebody else has this drive open */ - return -EBUSY; - LOCK_FDC(drive, 1); - - /* do the actual eject. Fails on - * non-Sparc architectures */ - ret = fd_eject(UNIT(drive)); - - USETF(FD_DISK_CHANGED); - USETF(FD_VERIFY); - process_fd_request(); + memset(&inparam, 0, sizeof(inparam)); + if (_IOC_DIR(cmd) & _IOC_WRITE) { + ret = fd_copyin((void __user *)param, &inparam, size); + if (ret) return ret; - case FDCLRPRM: - LOCK_FDC(drive, 1); - current_type[drive] = NULL; - floppy_sizes[drive] = MAX_DISK_SIZE << 1; - UDRS->keep_data = 0; - return invalidate_drive(bdev); - case FDSETPRM: - case FDDEFPRM: - return set_geometry(cmd, &inparam.g, - drive, type, bdev); - case FDGETPRM: - ECALL(get_floppy_geometry(drive, type, - (struct floppy_struct **) - &outparam)); - break; - - case FDMSGON: - UDP->flags |= FTD_MSG; - return 0; - case FDMSGOFF: - UDP->flags &= ~FTD_MSG; - return 0; - - case FDFMTBEG: - LOCK_FDC(drive, 1); - CALL(poll_drive(1, FD_RAW_NEED_DISK)); - ret = UDRS->flags; - process_fd_request(); - if (ret & FD_VERIFY) - return -ENODEV; - if (!(ret & FD_DISK_WRITABLE)) - return -EROFS; - return 0; - case FDFMTTRK: - if (UDRS->fd_ref != 1) - return -EBUSY; - return do_format(drive, &inparam.f); - case FDFMTEND: - case FDFLUSH: - LOCK_FDC(drive, 1); - return invalidate_drive(bdev); - - case FDSETEMSGTRESH: - UDP->max_errors.reporting = - (unsigned short)(param & 0x0f); - return 0; - OUT(FDGETMAXERRS, &UDP->max_errors); - IN(FDSETMAXERRS, &UDP->max_errors, max_errors); - - case FDGETDRVTYP: - outparam = drive_name(type, drive); - SUPBOUND(size, strlen(outparam) + 1); - break; - - IN(FDSETDRVPRM, UDP, dp); - OUT(FDGETDRVPRM, UDP); - - case FDPOLLDRVSTAT: - LOCK_FDC(drive, 1); - CALL(poll_drive(1, FD_RAW_NEED_DISK)); - process_fd_request(); - /* fall through */ - OUT(FDGETDRVSTAT, UDRS); - - case FDRESET: - return user_reset_fdc(drive, (int)param, 1); - - OUT(FDGETFDCSTAT, UFDCS); + } - case FDWERRORCLR: - CLEARSTRUCT(UDRWE); - return 0; - OUT(FDWERRORGET, UDRWE); - - case FDRAWCMD: - if (type) - return -EINVAL; - LOCK_FDC(drive, 1); - set_floppy(drive); - CALL(i = raw_cmd_ioctl(cmd, (void __user *)param)); - process_fd_request(); - return i; + switch (cmd) { + case FDEJECT: + if (UDRS->fd_ref != 1) + /* somebody else has this drive open */ + return -EBUSY; + if (lock_fdc(drive, true)) + return -EINTR; - case FDTWADDLE: - LOCK_FDC(drive, 1); - twaddle(); - process_fd_request(); - return 0; + /* do the actual eject. Fails on + * non-Sparc architectures */ + ret = fd_eject(UNIT(drive)); - default: + set_bit(FD_DISK_CHANGED_BIT, &UDRS->flags); + set_bit(FD_VERIFY_BIT, &UDRS->flags); + process_fd_request(); + return ret; + case FDCLRPRM: + if (lock_fdc(drive, true)) + return -EINTR; + current_type[drive] = NULL; + floppy_sizes[drive] = MAX_DISK_SIZE << 1; + UDRS->keep_data = 0; + return invalidate_drive(bdev); + case FDSETPRM: + case FDDEFPRM: + return set_geometry(cmd, &inparam.g, drive, type, bdev); + case FDGETPRM: + ret = get_floppy_geometry(drive, type, + (struct floppy_struct **)&outparam); + if (ret) + return ret; + break; + case FDMSGON: + UDP->flags |= FTD_MSG; + return 0; + case FDMSGOFF: + UDP->flags &= ~FTD_MSG; + return 0; + case FDFMTBEG: + if (lock_fdc(drive, true)) + return -EINTR; + if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR) + return -EINTR; + ret = UDRS->flags; + process_fd_request(); + if (ret & FD_VERIFY) + return -ENODEV; + if (!(ret & FD_DISK_WRITABLE)) + return -EROFS; + return 0; + case FDFMTTRK: + if (UDRS->fd_ref != 1) + return -EBUSY; + return do_format(drive, &inparam.f); + case FDFMTEND: + case FDFLUSH: + if (lock_fdc(drive, true)) + return -EINTR; + return invalidate_drive(bdev); + case FDSETEMSGTRESH: + UDP->max_errors.reporting = (unsigned short)(param & 0x0f); + return 0; + case FDGETMAXERRS: + outparam = &UDP->max_errors; + break; + case FDSETMAXERRS: + UDP->max_errors = inparam.max_errors; + break; + case FDGETDRVTYP: + outparam = drive_name(type, drive); + SUPBOUND(size, strlen((const char *)outparam) + 1); + break; + case FDSETDRVPRM: + *UDP = inparam.dp; + break; + case FDGETDRVPRM: + outparam = UDP; + break; + case FDPOLLDRVSTAT: + if (lock_fdc(drive, true)) + return -EINTR; + if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR) + return -EINTR; + process_fd_request(); + /* fall through */ + case FDGETDRVSTAT: + outparam = UDRS; + break; + case FDRESET: + return user_reset_fdc(drive, (int)param, true); + case FDGETFDCSTAT: + outparam = UFDCS; + break; + case FDWERRORCLR: + memset(UDRWE, 0, sizeof(*UDRWE)); + return 0; + case FDWERRORGET: + outparam = UDRWE; + break; + case FDRAWCMD: + if (type) return -EINVAL; - } + if (lock_fdc(drive, true)) + return -EINTR; + set_floppy(drive); + i = raw_cmd_ioctl(cmd, (void __user *)param); + if (i == -EINTR) + return -EINTR; + process_fd_request(); + return i; + case FDTWADDLE: + if (lock_fdc(drive, true)) + return -EINTR; + twaddle(); + process_fd_request(); + return 0; + default: + return -EINVAL; + } if (_IOC_DIR(cmd) & _IOC_READ) return fd_copyout((void __user *)param, outparam, size); - else - return 0; -#undef OUT -#undef IN + + return 0; } static void __init config_types(void) { - int first = 1; + bool has_drive = false; int drive; /* read drive info out of physical CMOS */ @@ -3655,17 +3627,22 @@ static void __init config_types(void) name = temparea; } if (name) { - const char *prepend = ","; - if (first) { - prepend = KERN_INFO "Floppy drive(s):"; - first = 0; + const char *prepend; + if (!has_drive) { + prepend = ""; + has_drive = true; + pr_info("Floppy drive(s):"); + } else { + prepend = ","; } - printk("%s fd%d is %s", prepend, drive, name); + + pr_cont("%s fd%d is %s", prepend, drive, name); } *UDP = *params; } - if (!first) - printk("\n"); + + if (has_drive) + pr_cont("\n"); } static int floppy_release(struct gendisk *disk, fmode_t mode) @@ -3705,8 +3682,8 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) goto out2; if (!UDRS->fd_ref && (UDP->flags & FD_BROKEN_DCL)) { - USETF(FD_DISK_CHANGED); - USETF(FD_VERIFY); + set_bit(FD_DISK_CHANGED_BIT, &UDRS->flags); + set_bit(FD_VERIFY_BIT, &UDRS->flags); } if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (mode & FMODE_EXCL))) @@ -3735,9 +3712,8 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) INFBOUND(try, 16); tmp = (char *)fd_dma_mem_alloc(1024 * try); } - if (!tmp && !floppy_track_buffer) { + if (!tmp && !floppy_track_buffer) fallback_on_nodma_alloc(&tmp, 2048 * try); - } if (!tmp && !floppy_track_buffer) { DPRINT("Unable to allocate DMA memory\n"); goto out; @@ -3767,11 +3743,12 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) if (mode & (FMODE_READ|FMODE_WRITE)) { UDRS->last_checked = 0; check_disk_change(bdev); - if (UTESTF(FD_DISK_CHANGED)) + if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags)) goto out; } res = -EROFS; - if ((mode & FMODE_WRITE) && !(UTESTF(FD_DISK_WRITABLE))) + if ((mode & FMODE_WRITE) && + !test_bit(FD_DISK_WRITABLE_BIT, &UDRS->flags)) goto out; } mutex_unlock(&open_lock); @@ -3795,17 +3772,18 @@ static int check_floppy_change(struct gendisk *disk) { int drive = (long)disk->private_data; - if (UTESTF(FD_DISK_CHANGED) || UTESTF(FD_VERIFY)) + if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags) || + test_bit(FD_VERIFY_BIT, &UDRS->flags)) return 1; if (time_after(jiffies, UDRS->last_checked + UDP->checkfreq)) { - lock_fdc(drive, 0); - poll_drive(0, 0); + lock_fdc(drive, false); + poll_drive(false, 0); process_fd_request(); } - if (UTESTF(FD_DISK_CHANGED) || - UTESTF(FD_VERIFY) || + if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags) || + test_bit(FD_VERIFY_BIT, &UDRS->flags) || test_bit(drive, &fake_change) || (!ITYPE(UDRS->fd_device) && !current_type[drive])) return 1; @@ -3818,8 +3796,7 @@ static int check_floppy_change(struct gendisk *disk) * a disk in the drive, and whether that disk is writable. */ -static void floppy_rb0_complete(struct bio *bio, - int err) +static void floppy_rb0_complete(struct bio *bio, int err) { complete((struct completion *)bio->bi_private); } @@ -3877,14 +3854,16 @@ static int floppy_revalidate(struct gendisk *disk) int cf; int res = 0; - if (UTESTF(FD_DISK_CHANGED) || - UTESTF(FD_VERIFY) || test_bit(drive, &fake_change) || NO_GEOM) { + if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags) || + test_bit(FD_VERIFY_BIT, &UDRS->flags) || + test_bit(drive, &fake_change) || NO_GEOM) { if (usage_count == 0) { - printk("VFS: revalidate called on non-open device.\n"); + pr_info("VFS: revalidate called on non-open device.\n"); return -EFAULT; } - lock_fdc(drive, 0); - cf = UTESTF(FD_DISK_CHANGED) || UTESTF(FD_VERIFY); + lock_fdc(drive, false); + cf = (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags) || + test_bit(FD_VERIFY_BIT, &UDRS->flags)); if (!(cf || test_bit(drive, &fake_change) || NO_GEOM)) { process_fd_request(); /*already done by another thread */ return 0; @@ -3894,7 +3873,7 @@ static int floppy_revalidate(struct gendisk *disk) if (buffer_drive == drive) buffer_track = -1; clear_bit(drive, &fake_change); - UCLEARF(FD_DISK_CHANGED); + clear_bit(FD_DISK_CHANGED_BIT, &UDRS->flags); if (cf) UDRS->generation++; if (NO_GEOM) { @@ -3902,7 +3881,7 @@ static int floppy_revalidate(struct gendisk *disk) res = __floppy_read_block_0(opened_bdev[drive]); } else { if (cf) - poll_drive(0, FD_RAW_NEED_DISK); + poll_drive(false, FD_RAW_NEED_DISK); process_fd_request(); } } @@ -3934,21 +3913,21 @@ static char __init get_fdc_version(void) output_byte(FD_DUMPREGS); /* 82072 and better know DUMPREGS */ if (FDCS->reset) return FDC_NONE; - if ((r = result()) <= 0x00) + r = result(); + if (r <= 0x00) return FDC_NONE; /* No FDC present ??? */ if ((r == 1) && (reply_buffer[0] == 0x80)) { - printk(KERN_INFO "FDC %d is an 8272A\n", fdc); + pr_info("FDC %d is an 8272A\n", fdc); return FDC_8272A; /* 8272a/765 don't know DUMPREGS */ } if (r != 10) { - printk - ("FDC %d init: DUMPREGS: unexpected return of %d bytes.\n", - fdc, r); + pr_info("FDC %d init: DUMPREGS: unexpected return of %d bytes.\n", + fdc, r); return FDC_UNKNOWN; } if (!fdc_configure()) { - printk(KERN_INFO "FDC %d is an 82072\n", fdc); + pr_info("FDC %d is an 82072\n", fdc); return FDC_82072; /* 82072 doesn't know CONFIGURE */ } @@ -3956,52 +3935,50 @@ static char __init get_fdc_version(void) if (need_more_output() == MORE_OUTPUT) { output_byte(0); } else { - printk(KERN_INFO "FDC %d is an 82072A\n", fdc); + pr_info("FDC %d is an 82072A\n", fdc); return FDC_82072A; /* 82072A as found on Sparcs. */ } output_byte(FD_UNLOCK); r = result(); if ((r == 1) && (reply_buffer[0] == 0x80)) { - printk(KERN_INFO "FDC %d is a pre-1991 82077\n", fdc); - return FDC_82077_ORIG; /* Pre-1991 82077, doesn't know + pr_info("FDC %d is a pre-1991 82077\n", fdc); + return FDC_82077_ORIG; /* Pre-1991 82077, doesn't know * LOCK/UNLOCK */ } if ((r != 1) || (reply_buffer[0] != 0x00)) { - printk("FDC %d init: UNLOCK: unexpected return of %d bytes.\n", - fdc, r); + pr_info("FDC %d init: UNLOCK: unexpected return of %d bytes.\n", + fdc, r); return FDC_UNKNOWN; } output_byte(FD_PARTID); r = result(); if (r != 1) { - printk("FDC %d init: PARTID: unexpected return of %d bytes.\n", - fdc, r); + pr_info("FDC %d init: PARTID: unexpected return of %d bytes.\n", + fdc, r); return FDC_UNKNOWN; } if (reply_buffer[0] == 0x80) { - printk(KERN_INFO "FDC %d is a post-1991 82077\n", fdc); + pr_info("FDC %d is a post-1991 82077\n", fdc); return FDC_82077; /* Revised 82077AA passes all the tests */ } switch (reply_buffer[0] >> 5) { case 0x0: /* Either a 82078-1 or a 82078SL running at 5Volt */ - printk(KERN_INFO "FDC %d is an 82078.\n", fdc); + pr_info("FDC %d is an 82078.\n", fdc); return FDC_82078; case 0x1: - printk(KERN_INFO "FDC %d is a 44pin 82078\n", fdc); + pr_info("FDC %d is a 44pin 82078\n", fdc); return FDC_82078; case 0x2: - printk(KERN_INFO "FDC %d is a S82078B\n", fdc); + pr_info("FDC %d is a S82078B\n", fdc); return FDC_S82078B; case 0x3: - printk(KERN_INFO "FDC %d is a National Semiconductor PC87306\n", - fdc); + pr_info("FDC %d is a National Semiconductor PC87306\n", fdc); return FDC_87306; default: - printk(KERN_INFO - "FDC %d init: 82078 variant with unknown PARTID=%d.\n", - fdc, reply_buffer[0] >> 5); + pr_info("FDC %d init: 82078 variant with unknown PARTID=%d.\n", + fdc, reply_buffer[0] >> 5); return FDC_82078_UNKN; } } /* get_fdc_version */ @@ -4113,9 +4090,9 @@ static int __init floppy_setup(char *str) else param = config_params[i].def_param; if (config_params[i].fn) - config_params[i]. - fn(ints, param, - config_params[i].param2); + config_params[i].fn(ints, param, + config_params[i]. + param2); if (config_params[i].var) { DPRINT("%s=%d\n", str, param); *config_params[i].var = param; @@ -4129,8 +4106,8 @@ static int __init floppy_setup(char *str) DPRINT("allowed options are:"); for (i = 0; i < ARRAY_SIZE(config_params); i++) - printk(" %s", config_params[i].name); - printk("\n"); + pr_cont(" %s", config_params[i].name); + pr_cont("\n"); } else DPRINT("botched floppy option\n"); DPRINT("Read Documentation/blockdev/floppy.txt\n"); @@ -4148,7 +4125,8 @@ static ssize_t floppy_cmos_show(struct device *dev, drive = p->id; return sprintf(buf, "%X\n", UDP->cmos); } -DEVICE_ATTR(cmos,S_IRUGO,floppy_cmos_show,NULL); + +DEVICE_ATTR(cmos, S_IRUGO, floppy_cmos_show, NULL); static void floppy_device_release(struct device *dev) { @@ -4160,7 +4138,7 @@ static int floppy_resume(struct device *dev) for (fdc = 0; fdc < N_FDC; fdc++) if (FDCS->address != -1) - user_reset_fdc(-1, FD_RESET_ALWAYS, 0); + user_reset_fdc(-1, FD_RESET_ALWAYS, false); return 0; } @@ -4172,8 +4150,8 @@ static const struct dev_pm_ops floppy_pm_ops = { static struct platform_driver floppy_driver = { .driver = { - .name = "floppy", - .pm = &floppy_pm_ops, + .name = "floppy", + .pm = &floppy_pm_ops, }, }; @@ -4234,7 +4212,7 @@ static int __init floppy_init(void) err = -ENOMEM; goto out_unreg_driver; } - blk_queue_max_sectors(floppy_queue, 64); + blk_queue_max_hw_sectors(floppy_queue, 64); blk_register_region(MKDEV(FLOPPY_MAJOR, 0), 256, THIS_MODULE, floppy_find, NULL, NULL); @@ -4245,16 +4223,16 @@ static int __init floppy_init(void) else floppy_sizes[i] = MAX_DISK_SIZE << 1; - reschedule_timeout(MAXTIMEOUT, "floppy init", MAXTIMEOUT); + reschedule_timeout(MAXTIMEOUT, "floppy init"); config_types(); for (i = 0; i < N_FDC; i++) { fdc = i; - CLEARSTRUCT(FDCS); + memset(FDCS, 0, sizeof(*FDCS)); FDCS->dtr = -1; FDCS->dor = 0x4; #if defined(__sparc__) || defined(__mc68000__) - /*sparcs/sun3x don't have a DOR reset which we can fall back on to */ + /*sparcs/sun3x don't have a DOR reset which we can fall back on to */ #ifdef __mc68000__ if (MACH_IS_SUN3X) #endif @@ -4283,11 +4261,11 @@ static int __init floppy_init(void) /* initialise drive state */ for (drive = 0; drive < N_DRIVE; drive++) { - CLEARSTRUCT(UDRS); - CLEARSTRUCT(UDRWE); - USETF(FD_DISK_NEWCHANGE); - USETF(FD_DISK_CHANGED); - USETF(FD_VERIFY); + memset(UDRS, 0, sizeof(*UDRS)); + memset(UDRWE, 0, sizeof(*UDRWE)); + set_bit(FD_DISK_NEWCHANGE_BIT, &UDRS->flags); + set_bit(FD_DISK_CHANGED_BIT, &UDRS->flags); + set_bit(FD_VERIFY_BIT, &UDRS->flags); UDRS->fd_device = -1; floppy_track_buffer = NULL; max_buffer_sectors = 0; @@ -4307,7 +4285,7 @@ static int __init floppy_init(void) if (FDCS->address == -1) continue; FDCS->rawcmd = 2; - if (user_reset_fdc(-1, FD_RESET_ALWAYS, 0)) { + if (user_reset_fdc(-1, FD_RESET_ALWAYS, false)) { /* free ioports reserved by floppy_grab_irq_and_dma() */ floppy_release_regions(fdc); FDCS->address = -1; @@ -4330,12 +4308,12 @@ static int __init floppy_init(void) * properly, so force a reset for the standard FDC clones, * to avoid interrupt garbage. */ - user_reset_fdc(-1, FD_RESET_ALWAYS, 0); + user_reset_fdc(-1, FD_RESET_ALWAYS, false); } fdc = 0; del_timer(&fd_timeout); current_drive = 0; - initialising = 0; + initialized = true; if (have_no_fdc) { DPRINT("no floppy controllers found\n"); err = have_no_fdc; @@ -4356,7 +4334,8 @@ static int __init floppy_init(void) if (err) goto out_flush_work; - err = device_create_file(&floppy_device[drive].dev,&dev_attr_cmos); + err = device_create_file(&floppy_device[drive].dev, + &dev_attr_cmos); if (err) goto out_unreg_platform_dev; @@ -4420,8 +4399,10 @@ static int floppy_request_regions(int fdc) const struct io_region *p; for (p = io_regions; p < ARRAY_END(io_regions); p++) { - if (!request_region(FDCS->address + p->offset, p->size, "floppy")) { - DPRINT("Floppy io-port 0x%04lx in use\n", FDCS->address + p->offset); + if (!request_region(FDCS->address + p->offset, + p->size, "floppy")) { + DPRINT("Floppy io-port 0x%04lx in use\n", + FDCS->address + p->offset); floppy_release_allocated_regions(fdc, p); return -EBUSY; } @@ -4512,11 +4493,9 @@ cleanup: static void floppy_release_irq_and_dma(void) { int old_fdc; -#ifdef FLOPPY_SANITY_CHECK #ifndef __sparc__ int drive; #endif -#endif long tmpsize; unsigned long tmpaddr; unsigned long flags; @@ -4547,20 +4526,18 @@ static void floppy_release_irq_and_dma(void) buffer_min = buffer_max = -1; fd_dma_mem_free(tmpaddr, tmpsize); } -#ifdef FLOPPY_SANITY_CHECK #ifndef __sparc__ for (drive = 0; drive < N_FDC * 4; drive++) if (timer_pending(motor_off_timer + drive)) - printk("motor off timer %d still active\n", drive); + pr_info("motor off timer %d still active\n", drive); #endif if (timer_pending(&fd_timeout)) - printk("floppy timer still active:%s\n", timeout_message); + pr_info("floppy timer still active:%s\n", timeout_message); if (timer_pending(&fd_timer)) - printk("auxiliary floppy timer still active\n"); + pr_info("auxiliary floppy timer still active\n"); if (work_pending(&floppy_work)) - printk("work still pending\n"); -#endif + pr_info("work still pending\n"); old_fdc = fdc; for (fdc = 0; fdc < N_FDC; fdc++) if (FDCS->address != -1) @@ -4577,7 +4554,9 @@ static void __init parse_floppy_cfg_string(char *cfg) char *ptr; while (*cfg) { - for (ptr = cfg; *cfg && *cfg != ' ' && *cfg != '\t'; cfg++) ; + ptr = cfg; + while (*cfg && *cfg != ' ' && *cfg != '\t') + cfg++; if (*cfg) { *cfg = '\0'; cfg++; @@ -4625,6 +4604,7 @@ static void __exit floppy_module_exit(void) /* eject disk, if any */ fd_eject(0); } + module_exit(floppy_module_exit); module_param(floppy, charp, 0); @@ -4636,9 +4616,10 @@ MODULE_LICENSE("GPL"); /* This doesn't actually get used other than for module information */ static const struct pnp_device_id floppy_pnpids[] = { - { "PNP0700", 0 }, - { } + {"PNP0700", 0}, + {} }; + MODULE_DEVICE_TABLE(pnp, floppy_pnpids); #else diff --git a/drivers/block/hd.c b/drivers/block/hd.c index d5cdce08ffd2..5116c65c07cb 100644 --- a/drivers/block/hd.c +++ b/drivers/block/hd.c @@ -719,7 +719,7 @@ static int __init hd_init(void) return -ENOMEM; } - blk_queue_max_sectors(hd_queue, 255); + blk_queue_max_hw_sectors(hd_queue, 255); init_timer(&device_timer); device_timer.function = hd_times_out; blk_queue_logical_block_size(hd_queue, 512); diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c index 02b2583df7fc..5416c9a606e4 100644 --- a/drivers/block/mg_disk.c +++ b/drivers/block/mg_disk.c @@ -980,7 +980,7 @@ static int mg_probe(struct platform_device *plat_dev) __func__, __LINE__); goto probe_err_6; } - blk_queue_max_sectors(host->breq, MG_MAX_SECTS); + blk_queue_max_hw_sectors(host->breq, MG_MAX_SECTS); blk_queue_logical_block_size(host->breq, MG_SECTOR_SIZE); init_timer(&host->timer); diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c index a808b1530b3b..eb2091aa1c19 100644 --- a/drivers/block/osdblk.c +++ b/drivers/block/osdblk.c @@ -476,7 +476,9 @@ static void class_osdblk_release(struct class *cls) kfree(cls); } -static ssize_t class_osdblk_list(struct class *c, char *data) +static ssize_t class_osdblk_list(struct class *c, + struct class_attribute *attr, + char *data) { int n = 0; struct list_head *tmp; @@ -500,7 +502,9 @@ static ssize_t class_osdblk_list(struct class *c, char *data) return n; } -static ssize_t class_osdblk_add(struct class *c, const char *buf, size_t count) +static ssize_t class_osdblk_add(struct class *c, + struct class_attribute *attr, + const char *buf, size_t count) { struct osdblk_device *osdev; ssize_t rc; @@ -592,7 +596,9 @@ err_out_mod: return rc; } -static ssize_t class_osdblk_remove(struct class *c, const char *buf, +static ssize_t class_osdblk_remove(struct class *c, + struct class_attribute *attr, + const char *buf, size_t count) { struct osdblk_device *osdev = NULL; diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 569e39e8f114..e712cd51af15 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -906,7 +906,7 @@ static int __init pd_init(void) if (!pd_queue) goto out1; - blk_queue_max_sectors(pd_queue, cluster); + blk_queue_max_hw_sectors(pd_queue, cluster); if (register_blkdev(major, name)) goto out2; diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c index ea54ea393553..ddb4f9abd480 100644 --- a/drivers/block/paride/pf.c +++ b/drivers/block/paride/pf.c @@ -956,8 +956,7 @@ static int __init pf_init(void) return -ENOMEM; } - blk_queue_max_phys_segments(pf_queue, cluster); - blk_queue_max_hw_segments(pf_queue, cluster); + blk_queue_max_segments(pf_queue, cluster); for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) { struct gendisk *disk = pf->disk; diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 68b5957f107c..39c8514442eb 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -284,7 +284,7 @@ static ssize_t kobj_pkt_store(struct kobject *kobj, return len; } -static struct sysfs_ops kobj_pkt_ops = { +static const struct sysfs_ops kobj_pkt_ops = { .show = kobj_pkt_show, .store = kobj_pkt_store }; @@ -337,7 +337,9 @@ static void class_pktcdvd_release(struct class *cls) { kfree(cls); } -static ssize_t class_pktcdvd_show_map(struct class *c, char *data) +static ssize_t class_pktcdvd_show_map(struct class *c, + struct class_attribute *attr, + char *data) { int n = 0; int idx; @@ -356,7 +358,9 @@ static ssize_t class_pktcdvd_show_map(struct class *c, char *data) return n; } -static ssize_t class_pktcdvd_store_add(struct class *c, const char *buf, +static ssize_t class_pktcdvd_store_add(struct class *c, + struct class_attribute *attr, + const char *buf, size_t count) { unsigned int major, minor; @@ -376,7 +380,9 @@ static ssize_t class_pktcdvd_store_add(struct class *c, const char *buf, return -EINVAL; } -static ssize_t class_pktcdvd_store_remove(struct class *c, const char *buf, +static ssize_t class_pktcdvd_store_remove(struct class *c, + struct class_attribute *attr, + const char *buf, size_t count) { unsigned int major, minor; @@ -569,6 +575,7 @@ static struct packet_data *pkt_alloc_packet_data(int frames) } spin_lock_init(&pkt->lock); + bio_list_init(&pkt->orig_bios); for (i = 0; i < frames; i++) { struct bio *bio = pkt_bio_alloc(1); @@ -721,43 +728,6 @@ static void pkt_rbtree_insert(struct pktcdvd_device *pd, struct pkt_rb_node *nod } /* - * Add a bio to a single linked list defined by its head and tail pointers. - */ -static void pkt_add_list_last(struct bio *bio, struct bio **list_head, struct bio **list_tail) -{ - bio->bi_next = NULL; - if (*list_tail) { - BUG_ON((*list_head) == NULL); - (*list_tail)->bi_next = bio; - (*list_tail) = bio; - } else { - BUG_ON((*list_head) != NULL); - (*list_head) = bio; - (*list_tail) = bio; - } -} - -/* - * Remove and return the first bio from a single linked list defined by its - * head and tail pointers. - */ -static inline struct bio *pkt_get_list_first(struct bio **list_head, struct bio **list_tail) -{ - struct bio *bio; - - if (*list_head == NULL) - return NULL; - - bio = *list_head; - *list_head = bio->bi_next; - if (*list_head == NULL) - *list_tail = NULL; - - bio->bi_next = NULL; - return bio; -} - -/* * Send a packet_command to the underlying block device and * wait for completion. */ @@ -876,13 +846,10 @@ static noinline_for_stack int pkt_set_speed(struct pktcdvd_device *pd, static void pkt_queue_bio(struct pktcdvd_device *pd, struct bio *bio) { spin_lock(&pd->iosched.lock); - if (bio_data_dir(bio) == READ) { - pkt_add_list_last(bio, &pd->iosched.read_queue, - &pd->iosched.read_queue_tail); - } else { - pkt_add_list_last(bio, &pd->iosched.write_queue, - &pd->iosched.write_queue_tail); - } + if (bio_data_dir(bio) == READ) + bio_list_add(&pd->iosched.read_queue, bio); + else + bio_list_add(&pd->iosched.write_queue, bio); spin_unlock(&pd->iosched.lock); atomic_set(&pd->iosched.attention, 1); @@ -917,8 +884,8 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd) int reads_queued, writes_queued; spin_lock(&pd->iosched.lock); - reads_queued = (pd->iosched.read_queue != NULL); - writes_queued = (pd->iosched.write_queue != NULL); + reads_queued = !bio_list_empty(&pd->iosched.read_queue); + writes_queued = !bio_list_empty(&pd->iosched.write_queue); spin_unlock(&pd->iosched.lock); if (!reads_queued && !writes_queued) @@ -927,7 +894,7 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd) if (pd->iosched.writing) { int need_write_seek = 1; spin_lock(&pd->iosched.lock); - bio = pd->iosched.write_queue; + bio = bio_list_peek(&pd->iosched.write_queue); spin_unlock(&pd->iosched.lock); if (bio && (bio->bi_sector == pd->iosched.last_write)) need_write_seek = 0; @@ -950,13 +917,10 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd) } spin_lock(&pd->iosched.lock); - if (pd->iosched.writing) { - bio = pkt_get_list_first(&pd->iosched.write_queue, - &pd->iosched.write_queue_tail); - } else { - bio = pkt_get_list_first(&pd->iosched.read_queue, - &pd->iosched.read_queue_tail); - } + if (pd->iosched.writing) + bio = bio_list_pop(&pd->iosched.write_queue); + else + bio = bio_list_pop(&pd->iosched.read_queue); spin_unlock(&pd->iosched.lock); if (!bio) @@ -992,14 +956,14 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd) static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_queue *q) { if ((pd->settings.size << 9) / CD_FRAMESIZE - <= queue_max_phys_segments(q)) { + <= queue_max_segments(q)) { /* * The cdrom device can handle one segment/frame */ clear_bit(PACKET_MERGE_SEGS, &pd->flags); return 0; } else if ((pd->settings.size << 9) / PAGE_SIZE - <= queue_max_phys_segments(q)) { + <= queue_max_segments(q)) { /* * We can handle this case at the expense of some extra memory * copies during write operations @@ -1114,7 +1078,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt) int f; char written[PACKET_MAX_SIZE]; - BUG_ON(!pkt->orig_bios); + BUG_ON(bio_list_empty(&pkt->orig_bios)); atomic_set(&pkt->io_wait, 0); atomic_set(&pkt->io_errors, 0); @@ -1124,7 +1088,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt) */ memset(written, 0, sizeof(written)); spin_lock(&pkt->lock); - for (bio = pkt->orig_bios; bio; bio = bio->bi_next) { + bio_list_for_each(bio, &pkt->orig_bios) { int first_frame = (bio->bi_sector - pkt->sector) / (CD_FRAMESIZE >> 9); int num_frames = bio->bi_size / CD_FRAMESIZE; pd->stats.secs_w += num_frames * (CD_FRAMESIZE >> 9); @@ -1363,7 +1327,7 @@ try_next_bio: break; pkt_rbtree_erase(pd, node); spin_lock(&pkt->lock); - pkt_add_list_last(bio, &pkt->orig_bios, &pkt->orig_bios_tail); + bio_list_add(&pkt->orig_bios, bio); pkt->write_size += bio->bi_size / CD_FRAMESIZE; spin_unlock(&pkt->lock); } @@ -1409,7 +1373,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt) */ frames_write = 0; spin_lock(&pkt->lock); - for (bio = pkt->orig_bios; bio; bio = bio->bi_next) { + bio_list_for_each(bio, &pkt->orig_bios) { int segment = bio->bi_idx; int src_offs = 0; int first_frame = (bio->bi_sector - pkt->sector) / (CD_FRAMESIZE >> 9); @@ -1472,20 +1436,14 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt) static void pkt_finish_packet(struct packet_data *pkt, int uptodate) { - struct bio *bio, *next; + struct bio *bio; if (!uptodate) pkt->cache_valid = 0; /* Finish all bios corresponding to this packet */ - bio = pkt->orig_bios; - while (bio) { - next = bio->bi_next; - bio->bi_next = NULL; + while ((bio = bio_list_pop(&pkt->orig_bios))) bio_endio(bio, uptodate ? 0 : -EIO); - bio = next; - } - pkt->orig_bios = pkt->orig_bios_tail = NULL; } static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data *pkt) @@ -2360,7 +2318,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write) * even if the size is a multiple of the packet size. */ spin_lock_irq(q->queue_lock); - blk_queue_max_sectors(q, pd->settings.size); + blk_queue_max_hw_sectors(q, pd->settings.size); spin_unlock_irq(q->queue_lock); set_bit(PACKET_WRITABLE, &pd->flags); } else { @@ -2567,8 +2525,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) spin_lock(&pkt->lock); if ((pkt->state == PACKET_WAITING_STATE) || (pkt->state == PACKET_READ_WAIT_STATE)) { - pkt_add_list_last(bio, &pkt->orig_bios, - &pkt->orig_bios_tail); + bio_list_add(&pkt->orig_bios, bio); pkt->write_size += bio->bi_size / CD_FRAMESIZE; if ((pkt->write_size >= pkt->frames) && (pkt->state == PACKET_WAITING_STATE)) { @@ -2662,7 +2619,7 @@ static void pkt_init_queue(struct pktcdvd_device *pd) blk_queue_make_request(q, pkt_make_request); blk_queue_logical_block_size(q, CD_FRAMESIZE); - blk_queue_max_sectors(q, PACKET_MAX_SECTORS); + blk_queue_max_hw_sectors(q, PACKET_MAX_SECTORS); blk_queue_merge_bvec(q, pkt_merge_bvec); q->queuedata = pd; } @@ -2898,6 +2855,8 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev) spin_lock_init(&pd->lock); spin_lock_init(&pd->iosched.lock); + bio_list_init(&pd->iosched.read_queue); + bio_list_init(&pd->iosched.write_queue); sprintf(pd->name, DRIVER_NAME"%d", idx); init_waitqueue_head(&pd->wqueue); pd->bio_queue = RB_ROOT; diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index 03a130dca8ab..bc95469d33c1 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -474,7 +474,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev) blk_queue_bounce_limit(queue, BLK_BOUNCE_HIGH); - blk_queue_max_sectors(queue, dev->bounce_size >> 9); + blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9); blk_queue_segment_boundary(queue, -1UL); blk_queue_dma_alignment(queue, dev->blk_size-1); blk_queue_logical_block_size(queue, dev->blk_size); @@ -482,8 +482,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev) blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH, ps3disk_prepare_flush); - blk_queue_max_phys_segments(queue, -1); - blk_queue_max_hw_segments(queue, -1); + blk_queue_max_segments(queue, -1); blk_queue_max_segment_size(queue, dev->bounce_size); gendisk = alloc_disk(PS3DISK_MINORS); diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c index 1fb6c3135fc8..e44608229972 100644 --- a/drivers/block/ps3vram.c +++ b/drivers/block/ps3vram.c @@ -751,10 +751,9 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) priv->queue = queue; queue->queuedata = dev; blk_queue_make_request(queue, ps3vram_make_request); - blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS); - blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS); - blk_queue_max_segment_size(queue, MAX_SEGMENT_SIZE); - blk_queue_max_sectors(queue, SAFE_MAX_SECTORS); + blk_queue_max_segments(queue, BLK_MAX_SEGMENTS); + blk_queue_max_segment_size(queue, BLK_MAX_SEGMENT_SIZE); + blk_queue_max_hw_sectors(queue, BLK_SAFE_MAX_SECTORS); gendisk = alloc_disk(1); if (!gendisk) { diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c index 411f064760b4..48e8fee9f2d4 100644 --- a/drivers/block/sunvdc.c +++ b/drivers/block/sunvdc.c @@ -691,9 +691,8 @@ static int probe_disk(struct vdc_port *port) port->disk = g; - blk_queue_max_hw_segments(q, port->ring_cookies); - blk_queue_max_phys_segments(q, port->ring_cookies); - blk_queue_max_sectors(q, port->max_xfer_size); + blk_queue_max_segments(q, port->ring_cookies); + blk_queue_max_hw_sectors(q, port->max_xfer_size); g->major = vdc_major; g->first_minor = port->vio.vdev->dev_no << PARTITION_SHIFT; strcpy(g->disk_name, port->disk_name); diff --git a/drivers/block/swim.c b/drivers/block/swim.c index 8f569e3df890..821c2833f9cf 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -864,7 +864,7 @@ static int __devinit swim_probe(struct platform_device *dev) struct swim_priv *swd; int ret; - res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs"); + res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res) { ret = -ENODEV; goto out; @@ -942,7 +942,7 @@ static int __devexit swim_remove(struct platform_device *dev) iounmap(swd->base); - res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs"); + res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (res) release_mem_region(res->start, resource_size(res)); diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c index a7c4184f4a63..b70f0fca9a42 100644 --- a/drivers/block/sx8.c +++ b/drivers/block/sx8.c @@ -409,7 +409,7 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) static void carm_remove_one (struct pci_dev *pdev); static int carm_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo); -static struct pci_device_id carm_pci_tbl[] = { +static const struct pci_device_id carm_pci_tbl[] = { { PCI_VENDOR_ID_PROMISE, 0x8000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, }, { PCI_VENDOR_ID_PROMISE, 0x8002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, }, { } /* terminate list */ @@ -1518,8 +1518,7 @@ static int carm_init_disks(struct carm_host *host) break; } disk->queue = q; - blk_queue_max_hw_segments(q, CARM_MAX_REQ_SG); - blk_queue_max_phys_segments(q, CARM_MAX_REQ_SG); + blk_queue_max_segments(q, CARM_MAX_REQ_SG); blk_queue_segment_boundary(q, CARM_SG_BOUNDARY); q->queuedata = port; diff --git a/drivers/block/ub.c b/drivers/block/ub.c index c739b203fe91..2e889838e819 100644 --- a/drivers/block/ub.c +++ b/drivers/block/ub.c @@ -393,7 +393,7 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum); #define ub_usb_ids usb_storage_usb_ids #else -static struct usb_device_id ub_usb_ids[] = { +static const struct usb_device_id ub_usb_ids[] = { { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_SCSI, US_PR_BULK) }, { } }; @@ -2320,10 +2320,9 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum) disk->queue = q; blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH); - blk_queue_max_hw_segments(q, UB_MAX_REQ_SG); - blk_queue_max_phys_segments(q, UB_MAX_REQ_SG); + blk_queue_max_segments(q, UB_MAX_REQ_SG); blk_queue_segment_boundary(q, 0xffffffff); /* Dubious. */ - blk_queue_max_sectors(q, UB_MAX_SECTORS); + blk_queue_max_hw_sectors(q, UB_MAX_SECTORS); blk_queue_logical_block_size(q, lun->capacity.bsize); lun->disk = disk; diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c index a8c8b56b275e..788d93882ab9 100644 --- a/drivers/block/viodasd.c +++ b/drivers/block/viodasd.c @@ -28,6 +28,9 @@ * All disk operations are performed by sending messages back and forth to * the OS/400 partition. */ + +#define pr_fmt(fmt) "viod: " fmt + #include <linux/major.h> #include <linux/fs.h> #include <linux/module.h> @@ -63,9 +66,6 @@ MODULE_LICENSE("GPL"); #define VIOD_VERS "1.64" -#define VIOD_KERN_WARNING KERN_WARNING "viod: " -#define VIOD_KERN_INFO KERN_INFO "viod: " - enum { PARTITION_SHIFT = 3, MAX_DISKNO = HVMAXARCHITECTEDVIRTUALDISKS, @@ -156,7 +156,7 @@ static int viodasd_open(struct block_device *bdev, fmode_t mode) ((u64)DEVICE_NO(d) << 48) | ((u64)flags << 32), 0, 0, 0); if (hvrc != 0) { - printk(VIOD_KERN_WARNING "HV open failed %d\n", (int)hvrc); + pr_warning("HV open failed %d\n", (int)hvrc); return -EIO; } @@ -167,9 +167,8 @@ static int viodasd_open(struct block_device *bdev, fmode_t mode) const struct vio_error_entry *err = vio_lookup_rc(viodasd_err_table, we.sub_result); - printk(VIOD_KERN_WARNING - "bad rc opening disk: %d:0x%04x (%s)\n", - (int)we.rc, we.sub_result, err->msg); + pr_warning("bad rc opening disk: %d:0x%04x (%s)\n", + (int)we.rc, we.sub_result, err->msg); return -EIO; } @@ -195,8 +194,7 @@ static int viodasd_release(struct gendisk *disk, fmode_t mode) ((u64)DEVICE_NO(d) << 48) /* | ((u64)flags << 32) */, 0, 0, 0); if (hvrc != 0) - printk(VIOD_KERN_WARNING "HV close call failed %d\n", - (int)hvrc); + pr_warning("HV close call failed %d\n", (int)hvrc); return 0; } @@ -288,8 +286,7 @@ static int send_request(struct request *req) bevent = (struct vioblocklpevent *) vio_get_event_buffer(viomajorsubtype_blockio); if (bevent == NULL) { - printk(VIOD_KERN_WARNING - "error allocating disk event buffer\n"); + pr_warning("error allocating disk event buffer\n"); goto error_ret; } @@ -333,9 +330,8 @@ static int send_request(struct request *req) } if (hvrc != HvLpEvent_Rc_Good) { - printk(VIOD_KERN_WARNING - "error sending disk event to OS/400 (rc %d)\n", - (int)hvrc); + pr_warning("error sending disk event to OS/400 (rc %d)\n", + (int)hvrc); goto error_ret; } spin_unlock_irqrestore(&viodasd_spinlock, flags); @@ -402,7 +398,7 @@ retry: ((u64)dev_no << 48) | ((u64)flags<< 32), 0, 0, 0); if (hvrc != 0) { - printk(VIOD_KERN_WARNING "bad rc on HV open %d\n", (int)hvrc); + pr_warning("bad rc on HV open %d\n", (int)hvrc); return 0; } @@ -416,9 +412,8 @@ retry: goto retry; } if (we.max_disk > (MAX_DISKNO - 1)) { - printk_once(VIOD_KERN_INFO - "Only examining the first %d of %d disks connected\n", - MAX_DISKNO, we.max_disk + 1); + printk_once(KERN_INFO pr_fmt("Only examining the first %d of %d disks connected\n"), + MAX_DISKNO, we.max_disk + 1); } /* Send the close event to OS/400. We DON'T expect a response */ @@ -432,17 +427,15 @@ retry: ((u64)dev_no << 48) | ((u64)flags << 32), 0, 0, 0); if (hvrc != 0) { - printk(VIOD_KERN_WARNING - "bad rc sending event to OS/400 %d\n", (int)hvrc); + pr_warning("bad rc sending event to OS/400 %d\n", (int)hvrc); return 0; } if (d->dev == NULL) { /* this is when we reprobe for new disks */ if (vio_create_viodasd(dev_no) == NULL) { - printk(VIOD_KERN_WARNING - "cannot allocate virtual device for disk %d\n", - dev_no); + pr_warning("cannot allocate virtual device for disk %d\n", + dev_no); return 0; } /* @@ -457,23 +450,20 @@ retry: spin_lock_init(&d->q_lock); q = blk_init_queue(do_viodasd_request, &d->q_lock); if (q == NULL) { - printk(VIOD_KERN_WARNING "cannot allocate queue for disk %d\n", - dev_no); + pr_warning("cannot allocate queue for disk %d\n", dev_no); return 0; } g = alloc_disk(1 << PARTITION_SHIFT); if (g == NULL) { - printk(VIOD_KERN_WARNING - "cannot allocate disk structure for disk %d\n", - dev_no); + pr_warning("cannot allocate disk structure for disk %d\n", + dev_no); blk_cleanup_queue(q); return 0; } d->disk = g; - blk_queue_max_hw_segments(q, VIOMAXBLOCKDMA); - blk_queue_max_phys_segments(q, VIOMAXBLOCKDMA); - blk_queue_max_sectors(q, VIODASD_MAXSECTORS); + blk_queue_max_segments(q, VIOMAXBLOCKDMA); + blk_queue_max_hw_sectors(q, VIODASD_MAXSECTORS); g->major = VIODASD_MAJOR; g->first_minor = dev_no << PARTITION_SHIFT; if (dev_no >= 26) @@ -489,13 +479,12 @@ retry: g->driverfs_dev = d->dev; set_capacity(g, d->size >> 9); - printk(VIOD_KERN_INFO "disk %d: %lu sectors (%lu MB) " - "CHS=%d/%d/%d sector size %d%s\n", - dev_no, (unsigned long)(d->size >> 9), - (unsigned long)(d->size >> 20), - (int)d->cylinders, (int)d->tracks, - (int)d->sectors, (int)d->bytes_per_sector, - d->read_only ? " (RO)" : ""); + pr_info("disk %d: %lu sectors (%lu MB) CHS=%d/%d/%d sector size %d%s\n", + dev_no, (unsigned long)(d->size >> 9), + (unsigned long)(d->size >> 20), + (int)d->cylinders, (int)d->tracks, + (int)d->sectors, (int)d->bytes_per_sector, + d->read_only ? " (RO)" : ""); /* register us in the global list */ add_disk(g); @@ -580,8 +569,8 @@ static int viodasd_handle_read_write(struct vioblocklpevent *bevent) if (error) { const struct vio_error_entry *err; err = vio_lookup_rc(viodasd_err_table, bevent->sub_result); - printk(VIOD_KERN_WARNING "read/write error %d:0x%04x (%s)\n", - event->xRc, bevent->sub_result, err->msg); + pr_warning("read/write error %d:0x%04x (%s)\n", + event->xRc, bevent->sub_result, err->msg); num_sect = blk_rq_sectors(req); } qlock = req->q->queue_lock; @@ -606,8 +595,7 @@ static void handle_block_event(struct HvLpEvent *event) return; /* First, we should NEVER get an int here...only acks */ if (hvlpevent_is_int(event)) { - printk(VIOD_KERN_WARNING - "Yikes! got an int in viodasd event handler!\n"); + pr_warning("Yikes! got an int in viodasd event handler!\n"); if (hvlpevent_need_ack(event)) { event->xRc = HvLpEvent_Rc_InvalidSubtype; HvCallEvent_ackLpEvent(event); @@ -650,7 +638,7 @@ static void handle_block_event(struct HvLpEvent *event) break; default: - printk(VIOD_KERN_WARNING "invalid subtype!"); + pr_warning("invalid subtype!"); if (hvlpevent_need_ack(event)) { event->xRc = HvLpEvent_Rc_InvalidSubtype; HvCallEvent_ackLpEvent(event); @@ -739,29 +727,26 @@ static int __init viodasd_init(void) vio_set_hostlp(); if (viopath_hostLp == HvLpIndexInvalid) { - printk(VIOD_KERN_WARNING "invalid hosting partition\n"); + pr_warning("invalid hosting partition\n"); rc = -EIO; goto early_fail; } - printk(VIOD_KERN_INFO "vers " VIOD_VERS ", hosting partition %d\n", - viopath_hostLp); + pr_info("vers " VIOD_VERS ", hosting partition %d\n", viopath_hostLp); /* register the block device */ rc = register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME); if (rc) { - printk(VIOD_KERN_WARNING - "Unable to get major number %d for %s\n", - VIODASD_MAJOR, VIOD_GENHD_NAME); + pr_warning("Unable to get major number %d for %s\n", + VIODASD_MAJOR, VIOD_GENHD_NAME); goto early_fail; } /* Actually open the path to the hosting partition */ rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2); if (rc) { - printk(VIOD_KERN_WARNING - "error opening path to host partition %d\n", - viopath_hostLp); + pr_warning("error opening path to host partition %d\n", + viopath_hostLp); goto unregister_blk; } @@ -770,7 +755,7 @@ static int __init viodasd_init(void) rc = vio_register_driver(&viodasd_driver); if (rc) { - printk(VIOD_KERN_WARNING "vio_register_driver failed\n"); + pr_warning("vio_register_driver failed\n"); goto unset_handler; } diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 51042f0ba7e1..3c64af05fa82 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -243,10 +243,12 @@ static int index_to_minor(int index) static int __devinit virtblk_probe(struct virtio_device *vdev) { struct virtio_blk *vblk; + struct request_queue *q; int err; u64 cap; - u32 v; - u32 blk_size, sg_elems; + u32 v, blk_size, sg_elems, opt_io_size; + u16 min_io_size; + u8 physical_block_exp, alignment_offset; if (index_to_minor(index) >= 1 << MINORBITS) return -ENOSPC; @@ -293,13 +295,13 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) goto out_mempool; } - vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock); - if (!vblk->disk->queue) { + q = vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock); + if (!q) { err = -ENOMEM; goto out_put_disk; } - vblk->disk->queue->queuedata = vblk; + q->queuedata = vblk; if (index < 26) { sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26); @@ -323,10 +325,10 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) /* If barriers are supported, tell block layer that queue is ordered */ if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH)) - blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_DRAIN_FLUSH, + blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, virtblk_prepare_flush); else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER)) - blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL); + blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL); /* If disk is read-only in the host, the guest should obey */ if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO)) @@ -345,14 +347,14 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) set_capacity(vblk->disk, cap); /* We can handle whatever the host told us to handle. */ - blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2); - blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2); + blk_queue_max_phys_segments(q, vblk->sg_elems-2); + blk_queue_max_hw_segments(q, vblk->sg_elems-2); /* No need to bounce any requests */ - blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY); + blk_queue_bounce_limit(q, BLK_BOUNCE_ANY); /* No real sector limit. */ - blk_queue_max_sectors(vblk->disk->queue, -1U); + blk_queue_max_sectors(q, -1U); /* Host can optionally specify maximum segment size and number of * segments. */ @@ -360,16 +362,45 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) offsetof(struct virtio_blk_config, size_max), &v); if (!err) - blk_queue_max_segment_size(vblk->disk->queue, v); + blk_queue_max_segment_size(q, v); else - blk_queue_max_segment_size(vblk->disk->queue, -1U); + blk_queue_max_segment_size(q, -1U); /* Host can optionally specify the block size of the device */ err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE, offsetof(struct virtio_blk_config, blk_size), &blk_size); if (!err) - blk_queue_logical_block_size(vblk->disk->queue, blk_size); + blk_queue_logical_block_size(q, blk_size); + else + blk_size = queue_logical_block_size(q); + + /* Use topology information if available */ + err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY, + offsetof(struct virtio_blk_config, physical_block_exp), + &physical_block_exp); + if (!err && physical_block_exp) + blk_queue_physical_block_size(q, + blk_size * (1 << physical_block_exp)); + + err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY, + offsetof(struct virtio_blk_config, alignment_offset), + &alignment_offset); + if (!err && alignment_offset) + blk_queue_alignment_offset(q, blk_size * alignment_offset); + + err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY, + offsetof(struct virtio_blk_config, min_io_size), + &min_io_size); + if (!err && min_io_size) + blk_queue_io_min(q, blk_size * min_io_size); + + err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY, + offsetof(struct virtio_blk_config, opt_io_size), + &opt_io_size); + if (!err && opt_io_size) + blk_queue_io_opt(q, blk_size * opt_io_size); + add_disk(vblk->disk); return 0; @@ -404,7 +435,7 @@ static void __devexit virtblk_remove(struct virtio_device *vdev) kfree(vblk); } -static struct virtio_device_id id_table[] = { +static const struct virtio_device_id id_table[] = { { VIRTIO_ID_BLOCK, VIRTIO_DEV_ANY_ID }, { 0 }, }; @@ -412,7 +443,7 @@ static struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX, VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, - VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH + VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY }; /* diff --git a/drivers/block/xd.c b/drivers/block/xd.c index d1fd032e7514..1a325fb05c92 100644 --- a/drivers/block/xd.c +++ b/drivers/block/xd.c @@ -242,7 +242,7 @@ static int __init xd_init(void) } /* xd_maxsectors depends on controller - so set after detection */ - blk_queue_max_sectors(xd_queue, xd_maxsectors); + blk_queue_max_hw_sectors(xd_queue, xd_maxsectors); for (i = 0; i < xd_drives; i++) add_disk(xd_gendisk[i]); diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 05a31e55d278..9c09694b2520 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -346,15 +346,14 @@ static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) /* Hard sector size and max sectors impersonate the equiv. hardware. */ blk_queue_logical_block_size(rq, sector_size); - blk_queue_max_sectors(rq, 512); + blk_queue_max_hw_sectors(rq, 512); /* Each segment in a request is up to an aligned page in size. */ blk_queue_segment_boundary(rq, PAGE_SIZE - 1); blk_queue_max_segment_size(rq, PAGE_SIZE); /* Ensure a merged request will fit in a single I/O ring slot. */ - blk_queue_max_phys_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST); - blk_queue_max_hw_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST); + blk_queue_max_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST); /* Make sure buffer addresses are sector-aligned. */ blk_queue_dma_alignment(rq, 511); @@ -1050,7 +1049,7 @@ static const struct block_device_operations xlvbd_block_fops = }; -static struct xenbus_device_id blkfront_ids[] = { +static const struct xenbus_device_id blkfront_ids[] = { { "vbd" }, { "" } }; diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index e5c5415eb45e..e1c95e208a66 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -1227,7 +1227,7 @@ static int __devexit ace_of_remove(struct of_device *op) } /* Match table for of_platform binding */ -static struct of_device_id ace_of_match[] __devinitdata = { +static const struct of_device_id ace_of_match[] __devinitconst = { { .compatible = "xlnx,opb-sysace-1.00.b", }, { .compatible = "xlnx,opb-sysace-1.00.c", }, { .compatible = "xlnx,xps-sysace-1.00.a", }, |