Alan,
Please apply this patch for kernel 2.5.6-pre2 for the 3ware driver to
support the new DMA mapping code, and several other fixes.
Thanks.
-- Adam Radford Software Engineer 3ware, Inc.diff -Naur linux-2.5.6-pre1/drivers/scsi/3w-xxxx.c linux-2.5.6-pre2/drivers/scsi/3w-xxxx.c --- linux-2.5.6-pre1/drivers/scsi/3w-xxxx.c Tue Feb 19 18:11:00 2002 +++ linux-2.5.6-pre2/drivers/scsi/3w-xxxx.c Wed Feb 27 11:53:49 2002 @@ -6,7 +6,7 @@ Arnaldo Carvalho de Melo <acme@conectiva.com.br> Brad Strand <linux@3ware.com>
- Copyright (C) 1999-2001 3ware Inc. + Copyright (C) 1999-2002 3ware Inc.
Kernel compatablity By: Andre Hedrick <andre@suse.com> Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com> @@ -106,17 +106,41 @@ Add entire aen code string list. 1.02.00.010 - Cleanup queueing code, fix jbod thoughput. Fix get_param for specific units. + 1.02.00.011 - Fix bug in tw_aen_complete() where aen's could be lost. + Fix tw_aen_drain_queue() to display useful info at init. + Set tw_host->max_id for 12 port cards. + Add ioctl support for raw command packet post from userspace + with sglist fragments (parameter and io). + 1.02.00.012 - Fix read capacity to under report by 1 sector to fix get + last sector ioctl. + 1.02.00.013 - Fix bug where more AEN codes weren't coming out during + driver initialization. + Improved handling of PCI aborts. + 1.02.00.014 - Fix bug in tw_findcards() where AEN code could be lost. + Increase timeout in tw_aen_drain_queue() to 30 seconds. + 1.02.00.015 - Re-write raw command post with data ioctl method. + Remove raid5 bounce buffers for raid5 for 6XXX for kernel 2.5 + Add tw_map/unmap_scsi_sg/single_data() for kernel 2.5 + Replace io_request_lock with host_lock for kernel 2.5 + Set max_cmd_len to 16 for 3dm for kernel 2.5 + 1.02.00.016 - Set host->max_sectors back up to 256. + 1.02.00.017 - Modified pci parity error handling/clearing from config space + during initialization. + 1.02.00.018 - Better handling of request sense opcode and sense information + for failed commands. Add tw_decode_sense(). + Replace all mdelay()'s with scsi_sleep(). + 1.02.00.019 - Revert mdelay's and scsi_sleep's, this caused problems on + some SMP systems. + 1.02.00.020 - Add pci_set_dma_mask(), rewrite kmalloc()/virt_to_bus() to + pci_alloc/free_consistent(). */
-#error Please convert me to Documentation/DMA-mapping.txt - #include <linux/module.h>
MODULE_AUTHOR ("3ware Inc."); MODULE_DESCRIPTION ("3ware Storage Controller Linux Driver"); MODULE_LICENSE("GPL");
- #include <linux/kernel.h> #include <linux/pci.h> #include <linux/time.h> @@ -148,14 +172,17 @@ static void tw_copy_mem_info(TW_Info *info, char *data, int len); static void tw_interrupt(int irq, void *dev_instance, struct pt_regs *regs); static int tw_halt(struct notifier_block *nb, ulong event, void *buf); +static int tw_map_scsi_sg_data(struct pci_dev *pdev, Scsi_Cmnd *cmd); +static u32 tw_map_scsi_single_data(struct pci_dev *pdev, Scsi_Cmnd *cmd); +static void tw_unmap_scsi_data(struct pci_dev *pdev, Scsi_Cmnd *cmd);
/* Notifier block to get a notify on system shutdown/halt/reboot */ static struct notifier_block tw_notifier = { - tw_halt, NULL, 0 + tw_halt, NULL, 0 };
/* Globals */ -char *tw_driver_version="1.02.00.010"; +char *tw_driver_version="1.02.00.020"; TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT]; int tw_device_extension_count = 0;
@@ -166,6 +193,7 @@ { TW_Param *param; unsigned short aen; + int error = 0;
dprintk(KERN_WARNING "3w-xxxx: tw_aen_complete()\n"); if (tw_dev->alignment_virtual_address[request_id] == NULL) { @@ -184,12 +212,15 @@ if ((tw_aen_string[aen & 0xff][strlen(tw_aen_string[aen & 0xff])-1]) == '#') { printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s%d.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff], aen >> 8); } else { - printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff]); + if (aen != 0x0) + printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff]); } - } else + } else { printk(KERN_WARNING "3w-xxxx: scsi%d: Received AEN %d.\n", tw_dev->host->host_no, aen); + } } - tw_dev->aen_count++; + if (aen != 0x0) + tw_dev->aen_count++;
/* Now queue the code */ tw_dev->aen_queue[tw_dev->aen_tail] = aen; @@ -205,8 +236,18 @@ tw_dev->aen_head = tw_dev->aen_head + 1; } } - tw_dev->state[request_id] = TW_S_COMPLETED; - tw_state_request_finish(tw_dev, request_id); + + if (aen != TW_AEN_QUEUE_EMPTY) { + error = tw_aen_read_queue(tw_dev, request_id); + if (error) { + printk(KERN_WARNING "3w-xxxx: scsi%d: Error completing AEN.\n", tw_dev->host->host_no); + tw_dev->state[request_id] = TW_S_COMPLETED; + tw_state_request_finish(tw_dev, request_id); + } + } else { + tw_dev->state[request_id] = TW_S_COMPLETED; + tw_state_request_finish(tw_dev, request_id); + }
return 0; } /* End tw_aen_complete() */ @@ -237,10 +278,11 @@ status_reg_addr = tw_dev->registers.status_reg_addr; response_que_addr = tw_dev->registers.response_que_addr;
- if (tw_poll_status(tw_dev, TW_STATUS_ATTENTION_INTERRUPT, 15)) { + if (tw_poll_status(tw_dev, TW_STATUS_ATTENTION_INTERRUPT, 30)) { dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): No attention interrupt for card %d.\n", tw_device_extension_count); return 1; } + tw_clear_attention_interrupt(tw_dev);
/* Initialize command packet */ if (tw_dev->command_packet_virtual_address[request_id] == NULL) { @@ -288,7 +330,7 @@ do { /* Post command packet */ outl(command_que_value, command_que_addr); - + /* Now poll for completion */ for (i=0;i<imax;i++) { mdelay(5); @@ -311,8 +353,7 @@ if (command_packet->status != 0) { if (command_packet->flags != TW_AEN_TABLE_UNDEFINED) { /* Bad response */ - dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags); - tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit); + tw_decode_sense(tw_dev, request_id, 0); return 1; } else { /* We know this is a 3w-1x00, and doesn't support aen's */ @@ -326,7 +367,7 @@ queue = 0; switch (aen_code) { case TW_AEN_QUEUE_EMPTY: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_QUEUE_EMPTY.\n"); + dprintk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]); if (first_reset != 1) { continue; } else { @@ -334,51 +375,28 @@ } break; case TW_AEN_SOFT_RESET: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_SOFT_RESET.\n"); if (first_reset == 0) { first_reset = 1; } else { + printk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]); + tw_dev->aen_count++; queue = 1; } break; - case TW_AEN_DEGRADED_MIRROR: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_DEGRADED_MIRROR.\n"); - queue = 1; - break; - case TW_AEN_CONTROLLER_ERROR: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_CONTROLLER_ERROR.\n"); - queue = 1; - break; - case TW_AEN_REBUILD_FAIL: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_REBUILD_FAIL.\n"); - queue = 1; - break; - case TW_AEN_REBUILD_DONE: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_REBUILD_DONE.\n"); - queue = 1; - break; - case TW_AEN_QUEUE_FULL: - dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_QUEUE_FULL.\n"); - queue = 1; - break; - case TW_AEN_APORT_TIMEOUT: - printk(KERN_WARNING "3w-xxxx: Received drive timeout AEN on port %d, check drive and drive cables.\n", aen >> 8); - queue = 1; - break; - case TW_AEN_DRIVE_ERROR: - printk(KERN_WARNING "3w-xxxx: Received drive error AEN on port %d, check/replace cabling, or possible bad drive.\n", aen >> 8); - queue = 1; - break; - case TW_AEN_SMART_FAIL: - printk(KERN_WARNING "3w-xxxx: Received S.M.A.R.T. threshold AEN on port %d, check drive/cooling, or possible bad drive.\n", aen >> 8); - queue = 1; - break; - case TW_AEN_SBUF_FAIL: - printk(KERN_WARNING "3w-xxxx: Received SBUF integrity check failure AEN, reseat card or bad card.\n"); - queue = 1; - break; default: - dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Unknown AEN code 0x%x.\n", aen_code); + if (aen == 0x0ff) { + printk(KERN_WARNING "3w-xxxx: AEN: AEN queue overflow.\n"); + } else { + if ((aen & 0x0ff) < TW_AEN_STRING_MAX) { + if ((tw_aen_string[aen & 0xff][strlen(tw_aen_string[aen & 0xff])-1]) == '#') { + printk(KERN_WARNING "3w-xxxx: AEN: %s%d.\n", tw_aen_string[aen & 0xff], aen >> 8); + } else { + printk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]); + } + } else + printk(KERN_WARNING "3w-xxxx: Received AEN %d.\n", aen); + } + tw_dev->aen_count++; queue = 1; }
@@ -488,40 +506,44 @@ return 0; } /* End tw_aen_read_queue() */
-/* This function will allocate memory and check if it is 16 d-word aligned */ -int tw_allocate_memory(TW_Device_Extension *tw_dev, int request_id, int size, int which) +/* This function will allocate memory */ +int tw_allocate_memory(TW_Device_Extension *tw_dev, int size, int which) { - u32 *virt_addr = kmalloc(size, GFP_ATOMIC); + int i; + dma_addr_t dma_handle; + u32 *cpu_addr = NULL;
dprintk(KERN_NOTICE "3w-xxxx: tw_allocate_memory()\n");
- if (!virt_addr) { - printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): kmalloc() failed.\n"); - return 1; - } + for (i=0;i<TW_Q_LENGTH;i++) { + cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size, &dma_handle); + if (cpu_addr == NULL) { + printk(KERN_WARNING "3w-xxxx: pci_alloc_consistent() failed.\n"); + return 1; + }
- if ((u32)virt_addr % TW_ALIGNMENT) { - kfree(virt_addr); - printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): Found unaligned address.\n"); - return 1; - } + if ((u32)cpu_addr % (tw_dev->tw_pci_dev->device == TW_DEVICE_ID ? TW_ALIGNMENT_6000 : TW_ALIGNMENT_7000)) { + printk(KERN_WARNING "3w-xxxx: Couldn't allocate correctly aligned memory.\n"); + return 1; + }
- switch(which) { - case 0: - tw_dev->command_packet_virtual_address[request_id] = virt_addr; - tw_dev->command_packet_physical_address[request_id] = virt_to_bus(virt_addr); - break; - case 1: - tw_dev->alignment_virtual_address[request_id] = virt_addr; - tw_dev->alignment_physical_address[request_id] = virt_to_bus(virt_addr); - break; - case 2: - tw_dev->bounce_buffer[request_id] = virt_addr; - break; - default: - printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): case slip in tw_allocate_memory()\n"); - return 1; + switch(which) { + case 0: + tw_dev->command_packet_virtual_address[i] = cpu_addr; + tw_dev->command_packet_physical_address[i] = dma_handle; + memset(tw_dev->command_packet_virtual_address[i], 0, size); + break; + case 1: + tw_dev->alignment_virtual_address[i] = cpu_addr; + tw_dev->alignment_physical_address[i] = dma_handle; + memset(tw_dev->alignment_virtual_address[i], 0, size); + break; + default: + printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): case slip in tw_allocate_memory()\n"); + return 1; + } } + return 0; } /* End tw_allocate_memory() */
@@ -548,8 +570,10 @@ status_reg_addr = tw_dev->registers.status_reg_addr; status_reg_value = inl(status_reg_addr);
- if (TW_STATUS_ERRORS(status_reg_value) || tw_check_bits(status_reg_value)) + if (TW_STATUS_ERRORS(status_reg_value) || tw_check_bits(status_reg_value)) { + tw_decode_bits(tw_dev, status_reg_value); return 1; + }
return 0; } /* End tw_check_errors() */ @@ -614,37 +638,62 @@ dprintk(KERN_WARNING "3w-xxxx: tw_decode_bits()\n"); switch (status_reg_value & TW_STATUS_UNEXPECTED_BITS) { case TW_STATUS_PCI_PARITY_ERROR: - printk(KERN_WARNING "3w-xxxx: PCI Parity Error: Reseat card, move card, or buggy device on the bus.\n"); + printk(KERN_WARNING "3w-xxxx: PCI Parity Error: clearing.\n"); outl(TW_CONTROL_CLEAR_PARITY_ERROR, tw_dev->registers.control_reg_addr); - pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PARITY_ERRORS); break; case TW_STATUS_MICROCONTROLLER_ERROR: printk(KERN_WARNING "3w-xxxx: Microcontroller Error.\n"); break; + case TW_STATUS_PCI_ABORT: + printk(KERN_WARNING "3w-xxxx: PCI Abort: clearing.\n"); + outl(TW_CONTROL_CLEAR_PCI_ABORT, tw_dev->registers.control_reg_addr); + pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PCI_ABORT); + break; } } /* End tw_decode_bits() */
-/* This function will print readable messages from flags and status values */ -void tw_decode_error(TW_Device_Extension *tw_dev, unsigned char status, unsigned char flags, unsigned char unit) +/* This function will return valid sense buffer information for failed cmds */ +void tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill_sense) { - dprintk(KERN_WARNING "3w-xxxx: tw_decode_error()\n"); - switch (status) { - case 0xc7: - switch (flags) { - case 0x1b: - printk(KERN_WARNING "3w-xxxx: scsi%d: Drive timeout on unit %d, check drive and drive cables.\n", tw_dev->host->host_no, unit); - break; - case 0x51: - printk(KERN_WARNING "3w-xxxx: scsi%d: Unrecoverable drive error on unit %d, check/replace cabling, or possible bad drive.\n", tw_dev->host->host_no, unit); - break; - default: - printk(KERN_WARNING "3w-xxxx: scsi%d: Controller error: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, status, flags, unit); + int i, found=0; + TW_Command *command; + + dprintk(KERN_WARNING "3w-xxxx: tw_decode_sense()\n"); + command = (TW_Command *)tw_dev->command_packet_virtual_address[request_id]; + + printk(KERN_WARNING "3w-xxxx: scsi%d: Command failed: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, command->status, command->flags, command->byte3.unit); + + /* Attempt to return intelligent sense information */ + if (fill_sense) { + if ((command->status == 0xc7) || (command->status == 0xcb)) { + for (i=0;i<(sizeof(tw_sense_table)/sizeof(tw_sense_table[0]));i++) { + if (command->flags == tw_sense_table[i][0]) { + found=1; + + /* Valid bit and 'current errors' */ + tw_dev->srb[request_id]->sense_buffer[0] = (0x1 << 7 | 0x70); + + /* Sense key */ + tw_dev->srb[request_id]->sense_buffer[2] = tw_sense_table[i][1]; + + /* Additional sense length */ + tw_dev->srb[request_id]->sense_buffer[7] = 0xa; /* 10 bytes */ + + /* Additional sense code */ + tw_dev->srb[request_id]->sense_buffer[12] = tw_sense_table[i][2]; + + /* Additional sense code qualifier */ + tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3]; + + tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + } + } } - break; - default: - printk(KERN_WARNING "3w-xxxx: scsi%d: Controller error: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, status, flags, unit); + /* If no table match, error so we get a reset */ + if (found == 0) + tw_dev->srb[request_id]->result = (DID_RESET << 16); } -} /* End tw_decode_error() */ +} /* End tw_decode_sense() */
/* This function will disable interrupts on the controller */ void tw_disable_interrupts(TW_Device_Extension *tw_dev) @@ -691,11 +740,22 @@ u32 control_reg_value, control_reg_addr;
control_reg_addr = tw_dev->registers.control_reg_addr; + control_reg_value = (TW_CONTROL_ENABLE_INTERRUPTS | + TW_CONTROL_UNMASK_RESPONSE_INTERRUPT); + outl(control_reg_value, control_reg_addr); +} /* End tw_enable_interrupts() */ + +/* This function will enable interrupts on the controller */ +void tw_enable_and_clear_interrupts(TW_Device_Extension *tw_dev) +{ + u32 control_reg_value, control_reg_addr; + + control_reg_addr = tw_dev->registers.control_reg_addr; control_reg_value = (TW_CONTROL_CLEAR_ATTENTION_INTERRUPT | TW_CONTROL_UNMASK_RESPONSE_INTERRUPT | TW_CONTROL_ENABLE_INTERRUPTS); outl(control_reg_value, control_reg_addr); -} /* End tw_enable_interrupts() */ +} /* End tw_enable_and_clear_interrupts() */
/* This function will find and initialize all cards */ int tw_findcards(Scsi_Host_Template *tw_host) @@ -716,6 +776,13 @@ while ((tw_pci_dev = pci_find_device(TW_VENDOR_ID, device[i], tw_pci_dev))) { if (pci_enable_device(tw_pci_dev)) continue; + + /* We only need 32-bit addressing for 5,6,7xxx cards */ + if (pci_set_dma_mask(tw_pci_dev, 0xffffffff)) { + printk(KERN_WARNING "3w-xxxx: No suitable DMA available.\n"); + continue; + } + /* Prepare temporary device extension */ tw_dev=(TW_Device_Extension *)kmalloc(sizeof(TW_Device_Extension), GFP_ATOMIC); if (tw_dev == NULL) { @@ -724,6 +791,9 @@ } memset(tw_dev, 0, sizeof(TW_Device_Extension));
+ /* Save pci_dev struct to device extension */ + tw_dev->tw_pci_dev = tw_pci_dev; + error = tw_initialize_device_extension(tw_dev); if (error) { printk(KERN_WARNING "3w-xxxx: tw_findcards(): Couldn't initialize device extension for card %d.\n", numcards); @@ -738,8 +808,6 @@ tw_dev->registers.status_reg_addr = pci_resource_start(tw_pci_dev, 0) + 0x4; tw_dev->registers.command_que_addr = pci_resource_start(tw_pci_dev, 0) + 0x8; tw_dev->registers.response_que_addr = pci_resource_start(tw_pci_dev, 0) + 0xC; - /* Save pci_dev struct to device extension */ - tw_dev->tw_pci_dev = tw_pci_dev;
/* Check for errors and clear them */ status_reg_value = inl(tw_dev->registers.status_reg_addr); @@ -763,14 +831,14 @@
error = tw_aen_drain_queue(tw_dev); if (error) { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): No attention interrupt for card %d.\n", numcards); + printk(KERN_WARNING "3w-xxxx: AEN drain failed for card %d.\n", numcards); tries++; continue; }
/* Check for controller errors */ if (tw_check_errors(tw_dev)) { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): Controller errors found, soft resetting card %d.\n", numcards); + printk(KERN_WARNING "3w-xxxx: Controller errors found, retrying for card %d.\n", numcards); tries++; continue; } @@ -778,7 +846,7 @@ /* Empty the response queue */ error = tw_empty_response_que(tw_dev); if (error) { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): Couldn't empty response queue for card %d.\n", numcards); + printk(KERN_WARNING "3w-xxxx: Couldn't empty response queue, retrying for card %d.\n", numcards); tries++; continue; } @@ -788,7 +856,7 @@ }
if (tries >= TW_MAX_RESET_TRIES) { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): Controller error or no attention interrupt: giving up for card %d.\n", numcards); + printk(KERN_WARNING "3w-xxxx: Controller errors, card not responding, check all cabling for card %d.\n", numcards); tw_free_device_extension(tw_dev); kfree(tw_dev); continue; @@ -818,7 +886,7 @@
error = tw_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS); if (error) { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): Couldn't initconnection for card %d.\n", numcards); + printk(KERN_WARNING "3w-xxxx: Connection initialization failed for card %d.\n", numcards); release_region((tw_dev->tw_pci_dev->resource[0].start), TW_IO_ADDRESS_RANGE); tw_free_device_extension(tw_dev); kfree(tw_dev); @@ -827,29 +895,28 @@
/* Calculate max cmds per lun, and setup queues */ if (tw_dev->num_units > 0) { - if ((tw_dev->num_raid_five > 0) && (tw_dev->tw_pci_dev->device == TW_DEVICE_ID)) { - tw_host->cmd_per_lun = (TW_MAX_BOUNCEBUF-1)/tw_dev->num_units; - tw_dev->free_head = TW_Q_START; - tw_dev->free_tail = TW_MAX_BOUNCEBUF - 1; - tw_dev->free_wrap = TW_MAX_BOUNCEBUF - 1; - } else { - tw_host->cmd_per_lun = (TW_Q_LENGTH-1)/tw_dev->num_units; - tw_dev->free_head = TW_Q_START; - tw_dev->free_tail = TW_Q_LENGTH - 1; - tw_dev->free_wrap = TW_Q_LENGTH - 1; - } + tw_host->cmd_per_lun = (TW_Q_LENGTH-1)/tw_dev->num_units; + tw_dev->free_head = TW_Q_START; + tw_dev->free_tail = TW_Q_LENGTH - 1; + tw_dev->free_wrap = TW_Q_LENGTH - 1; }
- /* Register the card with the kernel SCSI layer */ + /* Register the card with the kernel SCSI layer */ host = scsi_register(tw_host, sizeof(TW_Device_Extension)); if (host == NULL) { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): scsi_register() failed for card %d.\n", numcards-1); + printk(KERN_WARNING "3w-xxxx: tw_findcards(): scsi_register() failed for card %d.\n", numcards); release_region((tw_dev->tw_pci_dev->resource[0].start), TW_IO_ADDRESS_RANGE); tw_free_device_extension(tw_dev); kfree(tw_dev); continue; }
+ /* Set max target id's */ + host->max_id = TW_MAX_UNITS; + + /* Set max cdb size in bytes */ + host->max_cmd_len = 16; + /* Set max sectors per io */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,7) host->max_sectors = TW_MAX_SECTORS; @@ -874,7 +941,7 @@ tw_device_extension_count = numcards; tw_dev2->host = host; } else { - printk(KERN_WARNING "3w-xxxx: tw_findcards(): Bad scsi host data for card %d.\n", numcards-1); + printk(KERN_WARNING "3w-xxxx: tw_findcards(): Bad scsi host data for card %d.\n", numcards); scsi_unregister(host); release_region((tw_dev->tw_pci_dev->resource[0].start), TW_IO_ADDRESS_RANGE); tw_free_device_extension(tw_dev); @@ -924,15 +991,10 @@ /* Free command packet and generic buffer memory */ for (i=0;i<TW_Q_LENGTH;i++) { if (tw_dev->command_packet_virtual_address[i]) - kfree(tw_dev->command_packet_virtual_address[i]); + pci_free_consistent(tw_dev->tw_pci_dev, sizeof(TW_Sector), tw_dev->command_packet_virtual_address[i], tw_dev->command_packet_physical_address[i]);
if (tw_dev->alignment_virtual_address[i]) - kfree(tw_dev->alignment_virtual_address[i]); - - } - for (i=0;i<TW_MAX_BOUNCEBUF;i++) { - if (tw_dev->bounce_buffer[i]) - kfree(tw_dev->bounce_buffer[i]); + pci_free_consistent(tw_dev->tw_pci_dev, sizeof(TW_Sector), tw_dev->alignment_virtual_address[i], tw_dev->alignment_physical_address[i]); } } /* End tw_free_device_extension() */
@@ -1015,8 +1077,7 @@ } if (command_packet->status != 0) { /* bad response */ - dprintk(KERN_WARNING "3w-xxxx: tw_initconnection(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags); - tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit); + tw_decode_sense(tw_dev, request_id, 0); return 1; } break; /* Response was okay, so we exit */ @@ -1028,57 +1089,33 @@ /* This function will initialize the fields of a device extension */ int tw_initialize_device_extension(TW_Device_Extension *tw_dev) { - int i, imax; + int i, error=0;
dprintk(KERN_NOTICE "3w-xxxx: tw_initialize_device_extension()\n"); - imax = TW_Q_LENGTH;
- for (i=0; i<imax; i++) { - /* Initialize command packet buffers */ - tw_allocate_memory(tw_dev, i, sizeof(TW_Sector), 0); - if (tw_dev->command_packet_virtual_address[i] == NULL) { - printk(KERN_WARNING "3w-xxxx: tw_initialize_device_extension(): Bad command packet virtual address.\n"); - return 1; - } - memset(tw_dev->command_packet_virtual_address[i], 0, sizeof(TW_Sector)); - - /* Initialize generic buffer */ - tw_allocate_memory(tw_dev, i, sizeof(TW_Sector), 1); - if (tw_dev->alignment_virtual_address[i] == NULL) { - printk(KERN_WARNING "3w-xxxx: tw_initialize_device_extension(): Bad alignment virtual address.\n"); - return 1; - } - memset(tw_dev->alignment_virtual_address[i], 0, sizeof(TW_Sector)); + /* Initialize command packet buffers */ + error = tw_allocate_memory(tw_dev, sizeof(TW_Command), 0); + if (error) { + printk(KERN_WARNING "3w-xxxx: Command packet memory allocation failed.\n"); + return 1; + }
- tw_dev->free_queue[i] = i; - tw_dev->state[i] = TW_S_INITIAL; - tw_dev->ioctl_size[i] = 0; - tw_dev->aen_queue[i] = 0; + /* Initialize generic buffer */ + error = tw_allocate_memory(tw_dev, sizeof(TW_Sector), 1); + if (error) { + printk(KERN_WARNING "3w-xxxx: Generic memory allocation failed.\n"); + return 1; }
- for (i=0;i<TW_MAX_UNITS;i++) { - tw_dev->is_unit_present[i] = 0; - tw_dev->is_raid_five[i] = 0; + for (i=0;i<TW_Q_LENGTH;i++) { + tw_dev->free_queue[i] = i; + tw_dev->state[i] = TW_S_INITIAL; }
- tw_dev->num_units = 0; - tw_dev->num_aborts = 0; - tw_dev->num_resets = 0; - tw_dev->posted_request_count = 0; - tw_dev->max_posted_request_count = 0; - tw_dev->max_sgl_entries = 0; - tw_dev->sgl_entries = 0; - tw_dev->host = NULL; tw_dev->pending_head = TW_Q_START; tw_dev->pending_tail = TW_Q_START; - tw_dev->aen_head = 0; - tw_dev->aen_tail = 0; - tw_dev->sector_count = 0; - tw_dev->max_sector_count = 0; - tw_dev->aen_count = 0; - tw_dev->num_raid_five = 0; spin_lock_init(&tw_dev->tw_lock); - tw_dev->flags = 0; + return 0; } /* End tw_initialize_device_extension() */
@@ -1089,14 +1126,13 @@ unsigned char request_id = 0; TW_Command *command_packet; TW_Param *param; - int i, j, imax, num_units = 0, num_raid_five = 0; + int i, imax, num_units = 0; u32 status_reg_addr, status_reg_value; u32 command_que_addr, command_que_value; u32 response_que_addr; TW_Response_Queue response_queue; u32 param_value; unsigned char *is_unit_present; - unsigned char *raid_level;
dprintk(KERN_NOTICE "3w-xxxx: tw_initialize_units()\n");
@@ -1168,8 +1204,7 @@ } if (command_packet->status != 0) { /* bad response */ - dprintk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags); - tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit); + tw_decode_sense(tw_dev, request_id, 0); return 1; } found = 1; @@ -1205,109 +1240,6 @@ return 1; }
- /* Find raid 5 arrays */ - for (j=0;j<TW_MAX_UNITS;j++) { - if (tw_dev->is_unit_present[j] == 0) - continue; - command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id]; - if (command_packet == NULL) { - printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad command packet virtual address.\n"); - return 1; - } - memset(command_packet, 0, sizeof(TW_Sector)); - command_packet->byte0.opcode = TW_OP_GET_PARAM; - command_packet->byte0.sgl_offset = 2; - command_packet->size = 4; - command_packet->request_id = request_id; - command_packet->byte3.unit = 0; - command_packet->byte3.host_id = 0; - command_packet->status = 0; - command_packet->flags = 0; - command_packet->byte6.block_count = 1; - - /* Now setup the param */ - if (tw_dev->alignment_virtual_address[request_id] == NULL) { - printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad alignment virtual address.\n"); - return 1; - } - param = (TW_Param *)tw_dev->alignment_virtual_address[request_id]; - memset(param, 0, sizeof(TW_Sector)); - param->table_id = 0x300+j; /* unit summary table */ - param->parameter_id = 0x6; /* unit descriptor */ - param->parameter_size_bytes = 0xc; - param_value = tw_dev->alignment_physical_address[request_id]; - if (param_value == 0) { - printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad alignment physical address.\n"); - return 1; - } - - command_packet->byte8.param.sgl[0].address = param_value; - command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector); - - /* Post the command packet to the board */ - command_que_value = tw_dev->command_packet_physical_address[request_id]; - if (command_que_value == 0) { - printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad command packet physical address.\n"); - return 1; - } - outl(command_que_value, command_que_addr); - - /* Poll for completion */ - imax = TW_POLL_MAX_RETRIES; - for(i=0; i<imax; i++) { - mdelay(5); - status_reg_value = inl(status_reg_addr); - if (tw_check_bits(status_reg_value)) { - dprintk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Unexpected bits.\n"); - tw_decode_bits(tw_dev, status_reg_value); - return 1; - } - if ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) { - response_queue.value = inl(response_que_addr); - request_id = (unsigned char)response_queue.u.response_id; - if (request_id != 0) { - /* unexpected request id */ - printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Unexpected request id.\n"); - return 1; - } - if (command_packet->status != 0) { - /* bad response */ - dprintk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags); - tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit); - return 1; - } - found = 1; - break; - } - } - if (found == 0) { - /* response never received */ - printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): No response.\n"); - return 1; - } - - param = (TW_Param *)tw_dev->alignment_virtual_address[request_id]; - raid_level = (unsigned char *)&(param->data[1]); - if (*raid_level == 5) { - dprintk(KERN_WARNING "3w-xxxx: Found unit %d to be a raid5 unit.\n", j); - tw_dev->is_raid_five[j] = 1; - num_raid_five++; - } - } - tw_dev->num_raid_five = num_raid_five; - - /* Now allocate raid5 bounce buffers */ - if ((num_raid_five != 0) && (tw_dev->tw_pci_dev->device == TW_DEVICE_ID)) { - for (i=0;i<TW_MAX_BOUNCEBUF;i++) { - tw_allocate_memory(tw_dev, i, sizeof(TW_Sector)*TW_MAX_SECTORS, 2); - if (tw_dev->bounce_buffer[i] == NULL) { - printk(KERN_WARNING "3w-xxxx: Bounce buffer allocation failed.\n"); - return 1; - } - memset(tw_dev->bounce_buffer[i], 0, sizeof(TW_Sector)*TW_MAX_SECTORS); - } - } - return 0; } /* End tw_initialize_units() */
@@ -1332,13 +1264,18 @@
if (tw_dev->tw_pci_dev->irq == irq) { spin_lock(&tw_dev->tw_lock); - dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt()\n"); + dprintk(KERN_WARNING "3w-xxxx: tw_interrupt()\n");
/* Read the registers */ status_reg_addr = tw_dev->registers.status_reg_addr; response_que_addr = tw_dev->registers.response_que_addr; status_reg_value = inl(status_reg_addr);
+ if (tw_check_bits(status_reg_value)) { + dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n"); + tw_decode_bits(tw_dev, status_reg_value); + } + /* Check which interrupt */ if (status_reg_value & TW_STATUS_HOST_INTERRUPT) do_host_interrupt=1; @@ -1403,17 +1340,18 @@ command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id]; error = 0; if (command_packet->status != 0) { - dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Bad response, status = 0x%x, flags = 0x%x, unit = 0x%x.\n", command_packet->status, command_packet->flags, command_packet->byte3.unit); - tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit); - error = 1; + /* Bad response */ + if (tw_dev->srb[request_id] != 0) + tw_decode_sense(tw_dev, request_id, 1); + error = 3; } if (tw_dev->state[request_id] != TW_S_POSTED) { printk(KERN_WARNING "3w-xxxx: scsi%d: Received a request id (%d) (opcode = 0x%x) that wasn't posted.\n", tw_dev->host->host_no, request_id, command_packet->byte0.opcode); error = 1; } if (TW_STATUS_ERRORS(status_reg_value)) { - tw_decode_bits(tw_dev, status_reg_value); - error = 1; + tw_decode_bits(tw_dev, status_reg_value); + error = 1; } dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): Response queue request id: %d.\n", request_id); /* Check for internal command */ @@ -1428,7 +1366,7 @@ dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n"); tw_decode_bits(tw_dev, status_reg_value); } - } else { + } else { switch (tw_dev->srb[request_id]->cmnd[0]) { case READ_10: case READ_6: @@ -1455,18 +1393,23 @@ tw_dev->srb[request_id]->result = (DID_BAD_TARGET << 16); tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); } - if (error) { + if (error == 1) { /* Tell scsi layer there was an error */ dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Scsi Error.\n"); tw_dev->srb[request_id]->result = (DID_RESET << 16); - } else { + } + if (error == 0) { /* Tell scsi layer command was a success */ tw_dev->srb[request_id]->result = (DID_OK << 16); } - tw_dev->state[request_id] = TW_S_COMPLETED; - tw_state_request_finish(tw_dev, request_id); - tw_dev->posted_request_count--; - tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); + if (error != 2) { + tw_dev->state[request_id] = TW_S_COMPLETED; + tw_state_request_finish(tw_dev, request_id); + tw_dev->posted_request_count--; + tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); + + tw_unmap_scsi_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]); + } status_reg_value = inl(status_reg_addr); if (tw_check_bits(status_reg_value)) { dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n"); @@ -1479,19 +1422,22 @@ } spin_unlock_irqrestore(tw_dev->host->host_lock, flags); clear_bit(TW_IN_INTR, &tw_dev->flags); -} /* End tw_interrupt() */ +} /* End tw_interrupt() */
/* This function handles ioctls from userspace to the driver */ int tw_ioctl(TW_Device_Extension *tw_dev, int request_id) { unsigned char opcode; - int bufflen; + int bufflen, error = 0; TW_Param *param; - TW_Command *command_packet; + TW_Command *command_packet, *command_save; u32 param_value; TW_Ioctl *ioctl = NULL; TW_Passthru *passthru = NULL; - int tw_aen_code; + int tw_aen_code, i, use_sg; + char *data_ptr; + int total_bytes = 0; + dma_addr_t dma_handle;
ioctl = (TW_Ioctl *)tw_dev->srb[request_id]->request_buffer; if (ioctl == NULL) { @@ -1598,7 +1544,7 @@ printk(KERN_WARNING "3w-xxxx: tw_ioctl(): Passthru size (%ld) too big.\n", passthru->sg_list[0].length); return 1; } - passthru->sg_list[0].address = virt_to_bus(tw_dev->alignment_virtual_address[request_id]); + passthru->sg_list[0].address = tw_dev->alignment_physical_address[request_id]; tw_post_command_packet(tw_dev, request_id); return 0; case TW_CMD_PACKET: @@ -1612,6 +1558,161 @@ printk(KERN_WARNING "3w-xxxx: tw_ioctl(): ioctl->data NULL.\n"); return 1; } + case TW_CMD_PACKET_WITH_DATA: + dprintk(KERN_WARNING "3w-xxxx: tw_ioctl(): caught TW_CMD_PACKET_WITH_DATA.\n"); + command_save = (TW_Command *)tw_dev->alignment_virtual_address[request_id]; + if (command_save == NULL) { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad alignment virtual address.\n", tw_dev->host->host_no); + return 1; + } + if (ioctl->data != NULL) { + /* Copy down the command packet */ + memcpy(command_packet, ioctl->data, sizeof(TW_Command)); + memcpy(command_save, ioctl->data, sizeof(TW_Command)); + command_packet->request_id = request_id; + + /* Now deal with the two possible sglists */ + if (command_packet->byte0.sgl_offset == 2) { + use_sg = command_packet->size - 3; + for (i=0;i<use_sg;i++) + total_bytes+=command_packet->byte8.param.sgl[i].length; + tw_dev->ioctl_data[request_id] = pci_alloc_consistent(tw_dev->tw_pci_dev, total_bytes, &dma_handle); + + if (!tw_dev->ioctl_data[request_id]) { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): kmalloc failed for request_id %d.\n", tw_dev->host->host_no, request_id); + return 1; + } + + /* Copy param sglist into the kernel */ + data_ptr = tw_dev->ioctl_data[request_id]; + for (i=0;i<use_sg;i++) { + if ((u32 *)command_packet->byte8.param.sgl[i].address != NULL) { + error = copy_from_user(data_ptr, (u32 *)command_packet->byte8.param.sgl[i].address, command_packet->byte8.param.sgl[i].length); + if (error) { + printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying param sglist from userspace.\n", tw_dev->host->host_no); + goto tw_ioctl_bail; + } + } else { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad param sgl address.\n", tw_dev->host->host_no); + tw_dev->srb[request_id]->result = (DID_RESET << 16); + goto tw_ioctl_bail; + } + data_ptr+=command_packet->byte8.param.sgl[i].length; + } + command_packet->size = 4; + command_packet->byte8.param.sgl[0].address = dma_handle; + command_packet->byte8.param.sgl[0].length = total_bytes; + } + if (command_packet->byte0.sgl_offset == 3) { + use_sg = command_packet->size - 4; + for (i=0;i<use_sg;i++) + total_bytes+=command_packet->byte8.io.sgl[i].length; + tw_dev->ioctl_data[request_id] = pci_alloc_consistent(tw_dev->tw_pci_dev, total_bytes, &dma_handle); + + if (!tw_dev->ioctl_data[request_id]) { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): pci_alloc_consistent() failed for request_id %d.\n", tw_dev->host->host_no, request_id); + return 1; + } + if (command_packet->byte0.opcode == TW_OP_WRITE) { + /* Copy io sglist into the kernel */ + data_ptr = tw_dev->ioctl_data[request_id]; + for (i=0;i<use_sg;i++) { + if ((u32 *)command_packet->byte8.io.sgl[i].address != NULL) { + error = copy_from_user(data_ptr, (u32 *)command_packet->byte8.io.sgl[i].address, command_packet->byte8.io.sgl[i].length); + if (error) { + printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying io sglist from userspace.\n", tw_dev->host->host_no); + goto tw_ioctl_bail; + } + } else { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad io sgl address.\n", tw_dev->host->host_no); + tw_dev->srb[request_id]->result = (DID_RESET << 16); + goto tw_ioctl_bail; + } + data_ptr+=command_packet->byte8.io.sgl[i].length; + } + } + command_packet->size = 5; + command_packet->byte8.io.sgl[0].address = dma_handle; + command_packet->byte8.io.sgl[0].length = total_bytes; + } + + spin_unlock_irq(tw_dev->host->host_lock); + spin_unlock_irq(&tw_dev->tw_lock); + + /* Finally post the command packet */ + tw_post_command_packet(tw_dev, request_id); + + mdelay(TW_IOCTL_WAIT_TIME); + spin_lock_irq(&tw_dev->tw_lock); + spin_lock_irq(tw_dev->host->host_lock); + + if (signal_pending(current)) { + dprintk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Signal pending, aborting ioctl().\n", tw_dev->host->host_no); + tw_dev->srb[request_id]->result = (DID_OK << 16); + goto tw_ioctl_bail; + } + + tw_dev->srb[request_id]->result = (DID_OK << 16); + /* Now copy up the param or io sglist to userspace */ + if (command_packet->byte0.sgl_offset == 2) { + use_sg = command_save->size - 3; + data_ptr = phys_to_virt(command_packet->byte8.param.sgl[0].address); + for (i=0;i<use_sg;i++) { + if ((u32 *)command_save->byte8.param.sgl[i].address != NULL) { + error = copy_to_user((u32 *)command_save->byte8.param.sgl[i].address, data_ptr, command_save->byte8.param.sgl[i].length); + if (error) { + printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying param sglist to userspace.\n", tw_dev->host->host_no); + goto tw_ioctl_bail; + } + dprintk(KERN_WARNING "3w-xxxx: scsi%d: Copied %ld bytes to pid %d.\n", tw_dev->host->host_no, command_save->byte8.param.sgl[i].length, current->pid); + data_ptr+=command_save->byte8.param.sgl[i].length; + } else { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad param sgl address.\n", tw_dev->host->host_no); + tw_dev->srb[request_id]->result = (DID_RESET << 16); + goto tw_ioctl_bail; + } + } + } + if (command_packet->byte0.sgl_offset == 3) { + use_sg = command_save->size - 4; + if (command_packet->byte0.opcode == TW_OP_READ) { + data_ptr = phys_to_virt(command_packet->byte8.io.sgl[0].address); + for(i=0;i<use_sg;i++) { + if ((u32 *)command_save->byte8.io.sgl[i].address != NULL) { + error = copy_to_user((u32 *)command_save->byte8.io.sgl[i].address, data_ptr, command_save->byte8.io.sgl[i].length); + if (error) { + printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying io sglist to userspace.\n", tw_dev->host->host_no); + goto tw_ioctl_bail; + } + dprintk(KERN_WARNING "3w-xxxx: scsi%d: Copied %ld bytes to pid %d.\n", tw_dev->host->host_no, command_save->byte8.io.sgl[i].length, current->pid); + data_ptr+=command_save->byte8.io.sgl[i].length; + } else { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad io sgl address.\n", tw_dev->host->host_no); + tw_dev->srb[request_id]->result = (DID_RESET << 16); + goto tw_ioctl_bail; + } + } + } + } + + tw_ioctl_bail: + + /* Free up sglist memory */ + if (tw_dev->ioctl_data[request_id]) + pci_free_consistent(tw_dev->tw_pci_dev, total_bytes, tw_dev->ioctl_data[request_id], dma_handle); + else + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Error freeing ioctl data.\n", tw_dev->host->host_no); + + /* Now complete the io */ + tw_dev->state[request_id] = TW_S_COMPLETED; + tw_state_request_finish(tw_dev, request_id); + tw_dev->posted_request_count--; + tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); + return 0; + } else { + printk(KERN_WARNING "3w-xxxx: tw_ioctl(): ioctl->data NULL.\n"); + return 1; + } default: printk(KERN_WARNING "3w-xxxx: Unknown ioctl 0x%x.\n", opcode); tw_dev->state[request_id] = TW_S_COMPLETED; @@ -1655,6 +1756,7 @@ TW_Param *param; TW_Ioctl *ioctl = NULL; TW_Passthru *passthru = NULL; + TW_Command *command_packet;
ioctl = (TW_Ioctl *)tw_dev->srb[request_id]->request_buffer; dprintk(KERN_NOTICE "3w-xxxx: tw_ioctl_complete()\n"); @@ -1663,6 +1765,13 @@ printk(KERN_WARNING "3w-xxxx: tw_ioctl_complete(): Request buffer NULL.\n"); return 1; } + + command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id]; + if (command_packet == NULL) { + printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl_complete(): Bad command packet virtual address.\n", tw_dev->host->host_no); + return 1; + } + dprintk(KERN_NOTICE "3w-xxxx: tw_ioctl_complete(): Request_bufflen = %d\n", tw_dev->srb[request_id]->request_bufflen);
ioctl = (TW_Ioctl *)buff; @@ -1671,6 +1780,9 @@ passthru = (TW_Passthru *)ioctl->data; memcpy(buff, tw_dev->alignment_virtual_address[request_id], passthru->sector_count * 512); break; + case TW_CMD_PACKET_WITH_DATA: + dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_complete(): caught TW_CMD_PACKET_WITH_DATA.\n"); + return 2; /* Special case for isr to not complete io */ default: memset(buff, 0, tw_dev->srb[request_id]->request_bufflen); param = (TW_Param *)tw_dev->alignment_virtual_address[request_id]; @@ -1684,6 +1796,40 @@ return 0; } /* End tw_ioctl_complete() */
+static int tw_map_scsi_sg_data(struct pci_dev *pdev, Scsi_Cmnd *cmd) +{ + int use_sg; + int dma_dir = scsi_to_pci_dma_dir(cmd->sc_data_direction); + + dprintk(KERN_WARNING "3w-xxxx: tw_map_scsi_sg_data()\n"); + + if (cmd->use_sg == 0) + return 0; + + use_sg = pci_map_sg(pdev, cmd->buffer, cmd->use_sg, dma_dir); + cmd->SCp.phase = 2; + cmd->SCp.have_data_in = use_sg; + + return use_sg; +} /* End tw_map_scsi_sg_data() */ + +static u32 tw_map_scsi_single_data(struct pci_dev *pdev, Scsi_Cmnd *cmd) +{ + dma_addr_t mapping; + int dma_dir = scsi_to_pci_dma_dir(cmd->sc_data_direction); + + dprintk(KERN_WARNING "3w-xxxx: tw_map_scsi_single_data()\n"); + + if (cmd->request_bufflen == 0) + return 0; + + mapping = pci_map_single(pdev, cmd->request_buffer, cmd->request_bufflen, dma_dir); + cmd->SCp.phase = 2; + cmd->SCp.have_data_in = mapping; + + return mapping; +} /* End tw_map_scsi_single_data() */ + /* This function will mask the command interrupt */ void tw_mask_command_interrupt(TW_Device_Extension *tw_dev) { @@ -1704,14 +1850,25 @@ do_gettimeofday(&before); status_reg_value = inl(status_reg_addr);
+ if (tw_check_bits(status_reg_value)) { + dprintk(KERN_WARNING "3w-xxxx: tw_poll_status(): Unexpected bits.\n"); + tw_decode_bits(tw_dev, status_reg_value); + } + while ((status_reg_value & flag) != flag) { status_reg_value = inl(status_reg_addr); + + if (tw_check_bits(status_reg_value)) { + dprintk(KERN_WARNING "3w-xxxx: tw_poll_status(): Unexpected bits.\n"); + tw_decode_bits(tw_dev, status_reg_value); + } + do_gettimeofday(&timeout); if (before.tv_sec + seconds < timeout.tv_sec) { dprintk(KERN_WARNING "3w-xxxx: tw_poll_status(): Flag 0x%x not found.\n", flag); return 1; } - mdelay(1); + mdelay(5); } return 0; } /* End tw_poll_status() */ @@ -1787,6 +1944,7 @@ srb = tw_dev->srb[i]; srb->result = (DID_RESET << 16); tw_dev->srb[i]->scsi_done(tw_dev->srb[i]); + tw_unmap_scsi_data(tw_dev->tw_pci_dev, tw_dev->srb[i]); } } } @@ -1821,7 +1979,7 @@
error = tw_aen_drain_queue(tw_dev); if (error) { - printk(KERN_WARNING "3w-xxxx: scsi%d: Card not responding, retrying.\n", tw_dev->host->host_no); + printk(KERN_WARNING "3w-xxxx: scsi%d: AEN drain failed, retrying.\n", tw_dev->host->host_no); tries++; continue; } @@ -1857,7 +2015,7 @@ }
/* Re-enable interrupts */ - tw_enable_interrupts(tw_dev); + tw_enable_and_clear_interrupts(tw_dev);
return 0; } /* End tw_reset_sequence() */ @@ -2381,6 +2539,9 @@ capacity = (param_data[3] << 24) | (param_data[2] << 16) | (param_data[1] << 8) | param_data[0];
+ /* Subtract one sector to fix get last sector ioctl */ + capacity -= 1; + dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity_complete(): Capacity = 0x%x.\n", capacity);
/* Number of LBA's */ @@ -2403,8 +2564,8 @@ { TW_Command *command_packet; u32 command_que_addr, command_que_value = 0; - u32 lba = 0x0, num_sectors = 0x0; - int i, count = 0; + u32 lba = 0x0, num_sectors = 0x0, buffaddr = 0x0; + int i, use_sg; Scsi_Cmnd *srb; struct scatterlist *sglist;
@@ -2461,45 +2622,25 @@ command_packet->byte8.io.lba = lba; command_packet->byte6.block_count = num_sectors;
- if ((tw_dev->is_raid_five[tw_dev->srb[request_id]->target] == 0) || (srb->cmnd[0] == READ_6) || (srb->cmnd[0] == READ_10) || (tw_dev->tw_pci_dev->device == TW_DEVICE_ID2)) { - /* Do this if there are no sg list entries */ - if (tw_dev->srb[request_id]->use_sg == 0) { - dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write(): SG = 0\n"); - command_packet->byte8.io.sgl[0].address = virt_to_bus(tw_dev->srb[request_id]->request_buffer); - command_packet->byte8.io.sgl[0].length = tw_dev->srb[request_id]->request_bufflen; - } - - /* Do this if we have multiple sg list entries */ - if (tw_dev->srb[request_id]->use_sg > 0) { - for (i=0;i<tw_dev->srb[request_id]->use_sg; i++) { - command_packet->byte8.io.sgl[i].address = virt_to_bus(sglist[i].address); - command_packet->byte8.io.sgl[i].length = sglist[i].length; - command_packet->size+=2; - } - if (tw_dev->srb[request_id]->use_sg >= 1) - command_packet->size-=2; + /* Do this if there are no sg list entries */ + if (tw_dev->srb[request_id]->use_sg == 0) { + dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write(): SG = 0\n"); + buffaddr = tw_map_scsi_single_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]); + command_packet->byte8.io.sgl[0].address = buffaddr; + command_packet->byte8.io.sgl[0].length = tw_dev->srb[request_id]->request_bufflen; + } + + /* Do this if we have multiple sg list entries */ + if (tw_dev->srb[request_id]->use_sg > 0) { + use_sg = tw_map_scsi_sg_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]);; + for (i=0;i<use_sg; i++) { + command_packet->byte8.io.sgl[i].address = sg_dma_address(&sglist[i]); + command_packet->byte8.io.sgl[i].length = sg_dma_len(&sglist[i]); + command_packet->size+=2; } - } else { - /* Do this if there are no sg list entries for raid 5 */ - if (tw_dev->srb[request_id]->use_sg == 0) { - dprintk(KERN_WARNING "doing raid 5 write use_sg = 0, bounce_buffer[%d] = 0x%p\n", request_id, tw_dev->bounce_buffer[request_id]); - memcpy(tw_dev->bounce_buffer[request_id], tw_dev->srb[request_id]->request_buffer, tw_dev->srb[request_id]->request_bufflen); - command_packet->byte8.io.sgl[0].address = virt_to_bus(tw_dev->bounce_buffer[request_id]); - command_packet->byte8.io.sgl[0].length = tw_dev->srb[request_id]->request_bufflen; - } - - /* Do this if we have multiple sg list entries for raid 5 */ - if (tw_dev->srb[request_id]->use_sg > 0) { - dprintk(KERN_WARNING "doing raid 5 write use_sg = %d, sglist[0].length = %d\n", tw_dev->srb[request_id]->use_sg, sglist[0].length); - for (i=0;i<tw_dev->srb[request_id]->use_sg; i++) { - memcpy((char *)(tw_dev->bounce_buffer[request_id])+count, sglist[i].address, sglist[i].length); - count+=sglist[i].length; - } - command_packet->byte8.io.sgl[0].address = virt_to_bus(tw_dev->bounce_buffer[request_id]); - command_packet->byte8.io.sgl[0].length = count; - command_packet->size = 5; /* single sgl */ - } - } + if (tw_dev->srb[request_id]->use_sg >= 1) + command_packet->size-=2; + }
/* Update SG statistics */ tw_dev->sgl_entries = tw_dev->srb[request_id]->use_sg; @@ -2521,18 +2662,18 @@ /* This function will handle the request sense scsi command */ int tw_scsiop_request_sense(TW_Device_Extension *tw_dev, int request_id) { - dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_request_sense()\n"); - - /* For now we just zero the sense buffer */ - memset(tw_dev->srb[request_id]->request_buffer, 0, tw_dev->srb[request_id]->request_bufflen); - tw_dev->state[request_id] = TW_S_COMPLETED; - tw_state_request_finish(tw_dev, request_id); - - /* If we got a request_sense, we probably want a reset, return error */ - tw_dev->srb[request_id]->result = (DID_ERROR << 16); - tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); - - return 0; + dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_request_sense()\n"); + + /* For now we just zero the request buffer */ + memset(tw_dev->srb[request_id]->request_buffer, 0, tw_dev->srb[request_id]->request_bufflen); + tw_dev->state[request_id] = TW_S_COMPLETED; + tw_state_request_finish(tw_dev, request_id); + + /* If we got a request_sense, we probably want a reset, return error */ + tw_dev->srb[request_id]->result = (DID_ERROR << 16); + tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); + + return 0; } /* End tw_scsiop_request_sense() */
/* This function will handle test unit ready scsi command */ @@ -2626,8 +2767,7 @@ } if (command_packet->status != 0) { /* bad response */ - dprintk(KERN_WARNING "3w-xxxx: tw_setfeature(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags); - tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit); + tw_decode_sense(tw_dev, request_id, 0); return 1; } break; /* Response was okay, so we exit */ @@ -2671,7 +2811,7 @@ }
/* Re-enable interrupts */ - tw_enable_interrupts(tw_dev); + tw_enable_and_clear_interrupts(tw_dev);
return 0; } /* End tw_shutdown_device() */ @@ -2719,7 +2859,7 @@ int id = 0;
dprintk(KERN_NOTICE "3w-xxxx: tw_state_request_start()\n"); - + /* Obtain next free request_id */ do { if (tw_dev->free_head == tw_dev->free_wrap) { @@ -2738,6 +2878,19 @@ return 0; } /* End tw_state_request_start() */
+static void tw_unmap_scsi_data(struct pci_dev *pdev, Scsi_Cmnd *cmd) +{ + int dma_dir = scsi_to_pci_dma_dir(cmd->sc_data_direction); + + dprintk(KERN_WARNING "3w-xxxx: tw_unmap_scsi_data()\n"); + + if (cmd->use_sg) { + pci_unmap_sg(pdev, cmd->request_buffer, cmd->use_sg, dma_dir); + } else { + pci_unmap_single(pdev, cmd->SCp.have_data_in, cmd->request_bufflen, dma_dir); + } +} /* End tw_unmap_scsi_data() */ + /* This function will unmask the command interrupt on the controller */ void tw_unmask_command_interrupt(TW_Device_Extension *tw_dev) { @@ -2749,7 +2902,6 @@ } /* End tw_unmask_command_interrupt() */
/* Now get things going */ - static Scsi_Host_Template driver_template = TWXXXX; #include "scsi_module.c"
diff -Naur linux-2.5.6-pre1/drivers/scsi/3w-xxxx.h linux-2.5.6-pre2/drivers/scsi/3w-xxxx.h --- linux-2.5.6-pre1/drivers/scsi/3w-xxxx.h Tue Feb 19 18:10:58 2002 +++ linux-2.5.6-pre2/drivers/scsi/3w-xxxx.h Wed Feb 27 11:53:52 2002 @@ -6,7 +6,7 @@ Arnaldo Carvalho de Melo <acme@conectiva.com.br> Brad Strand <linux@3ware.com>
- Copyright (C) 1999-2001 3ware Inc. + Copyright (C) 1999-2002 3ware Inc.
Kernel compatablity By: Andre Hedrick <andre@suse.com> Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com> @@ -62,7 +62,7 @@ static char *tw_aen_string[] = { "AEN queue empty", // 0x000 "Soft reset occurred", // 0x001 - "Mirorr degraded: Unit #", // 0x002 + "Unit degraded: Unit #", // 0x002 "Controller error", // 0x003 "Rebuild failed: Unit #", // 0x004 "Rebuild complete: Unit #", // 0x005 @@ -90,10 +90,36 @@ "DCB unsupported version: Port #", // 0x028 "Verify started: Unit #", // 0x029 "Verify failed: Port #", // 0x02A - "Verify complete: Unit #" // 0x02B + "Verify complete: Unit #", // 0x02B + "Overwrote bad sector during rebuild: Port #", //0x2C + "Encountered bad sector during rebuild: Port #" //0x2D };
-#define TW_AEN_STRING_MAX 0x02C +#define TW_AEN_STRING_MAX 0x02E + +/* + Sense key lookup table + Format: ESDC/flags,SenseKey,AdditionalSenseCode,AdditionalSenseCodeQualifier +*/ +static unsigned char tw_sense_table[][4] = +{ + /* Codes for newer firmware */ + // ATA Error SCSI Error + {0x01, 0x03, 0x13, 0x00}, // Address mark not found Address mark not found for data field + {0x04, 0x0b, 0x00, 0x00}, // Aborted command Aborted command + {0x10, 0x0b, 0x14, 0x00}, // ID not found Recorded entity not found + {0x40, 0x03, 0x11, 0x00}, // Uncorrectable ECC error Unrecovered read error + {0x61, 0x04, 0x00, 0x00}, // Device fault Hardware error + {0x84, 0x0b, 0x47, 0x00}, // Data CRC error SCSI parity error + {0xd0, 0x0b, 0x00, 0x00}, // Device busy Aborted command + {0xd1, 0x0b, 0x00, 0x00}, // Device busy Aborted command + + /* Codes for older firmware */ + // 3ware Error SCSI Error + {0x09, 0x0b, 0x00, 0x00}, // Unrecovered disk error Aborted command + {0x37, 0x0b, 0x04, 0x00}, // Unit offline Logical unit not ready + {0x51, 0x0b, 0x00, 0x00} // Unspecified Aborted command +};
/* Control register bit definitions */ #define TW_CONTROL_CLEAR_HOST_INTERRUPT 0x00080000 @@ -108,6 +134,7 @@ #define TW_CONTROL_DISABLE_INTERRUPTS 0x00000040 #define TW_CONTROL_ISSUE_HOST_INTERRUPT 0x00000020 #define TW_CONTROL_CLEAR_PARITY_ERROR 0x00800000 +#define TW_CONTROL_CLEAR_PCI_ABORT 0x00100000
/* Status register bit definitions */ #define TW_STATUS_MAJOR_VERSION_MASK 0xF0000000 @@ -140,6 +167,7 @@ #define TW_DEVICE_ID2 (0x1001) /* 7000 series controller */ #define TW_NUMDEVICES 2 #define TW_PCI_CLEAR_PARITY_ERRORS 0xc100 +#define TW_PCI_CLEAR_PCI_ABORT 0x2000
/* Command packet opcodes */ #define TW_OP_NOP 0x0 @@ -153,6 +181,7 @@ #define TW_OP_AEN_LISTEN 0x1c #define TW_CMD_PACKET 0x1d #define TW_ATA_PASSTHRU 0x1e +#define TW_CMD_PACKET_WITH_DATA 0x1f
/* Asynchronous Event Notification (AEN) Codes */ #define TW_AEN_QUEUE_EMPTY 0x0000 @@ -169,7 +198,8 @@ #define TW_AEN_SBUF_FAIL 0x0024
/* Misc defines */ -#define TW_ALIGNMENT 0x200 /* 16 D-WORDS */ +#define TW_ALIGNMENT_6000 64 /* 64 bytes */ +#define TW_ALIGNMENT_7000 4 /* 4 bytes */ #define TW_MAX_UNITS 16 #define TW_COMMAND_ALIGNMENT_MASK 0x1ff #define TW_INIT_MESSAGE_CREDITS 0x100 @@ -179,7 +209,6 @@ #define TW_ATA_PASS_SGL_MAX 60 #define TW_MAX_PASSTHRU_BYTES 4096 #define TW_Q_LENGTH 256 -#define TW_MAX_BOUNCEBUF 16 #define TW_Q_START 0 #define TW_MAX_SLOT 32 #define TW_MAX_PCI_BUSES 255 @@ -191,12 +220,9 @@ #define TW_MAX_AEN_TRIES 100 #define TW_UNIT_ONLINE 1 #define TW_IN_INTR 1 -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,7) #define TW_MAX_SECTORS 256 -#else -#define TW_MAX_SECTORS 128 -#endif #define TW_AEN_WAIT_TIME 1000 +#define TW_IOCTL_WAIT_TIME (1 * HZ) /* 1 second */
/* Macros */ #define TW_STATUS_ERRORS(x) \ @@ -262,7 +288,6 @@ } TW_Command;
typedef struct TAG_TW_Ioctl { - int buffer; unsigned char opcode; unsigned short table_id; unsigned char parameter_id; @@ -345,11 +370,8 @@ TW_Registers registers; u32 *alignment_virtual_address[TW_Q_LENGTH]; u32 alignment_physical_address[TW_Q_LENGTH]; - u32 *bounce_buffer[TW_Q_LENGTH]; int is_unit_present[TW_MAX_UNITS]; - int is_raid_five[TW_MAX_UNITS]; int num_units; - int num_raid_five; u32 *command_packet_virtual_address[TW_Q_LENGTH]; u32 command_packet_physical_address[TW_Q_LENGTH]; struct pci_dev *tw_pci_dev; @@ -381,22 +403,24 @@ unsigned char aen_head; unsigned char aen_tail; long flags; /* long req'd for set_bit --RR */ + char *ioctl_data[TW_Q_LENGTH]; } TW_Device_Extension;
/* Function prototypes */ int tw_aen_complete(TW_Device_Extension *tw_dev, int request_id); int tw_aen_drain_queue(TW_Device_Extension *tw_dev); int tw_aen_read_queue(TW_Device_Extension *tw_dev, int request_id); -int tw_allocate_memory(TW_Device_Extension *tw_dev, int request_id, int size, int which); +int tw_allocate_memory(TW_Device_Extension *tw_dev, int size, int which); int tw_check_bits(u32 status_reg_value); int tw_check_errors(TW_Device_Extension *tw_dev); void tw_clear_attention_interrupt(TW_Device_Extension *tw_dev); void tw_clear_host_interrupt(TW_Device_Extension *tw_dev); void tw_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value); -void tw_decode_error(TW_Device_Extension *tw_dev, unsigned char status, unsigned char flags, unsigned char unit); +void tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill_sense); void tw_disable_interrupts(TW_Device_Extension *tw_dev); int tw_empty_response_que(TW_Device_Extension *tw_dev); void tw_enable_interrupts(TW_Device_Extension *tw_dev); +void tw_enable_and_clear_interrupts(TW_Device_Extension *tw_dev); int tw_findcards(Scsi_Host_Template *tw_host); void tw_free_device_extension(TW_Device_Extension *tw_dev); int tw_initconnection(TW_Device_Extension *tw_dev, int message_credits);
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This archive was generated by hypermail 2b29 : Thu Feb 28 2002 - 21:00:39 EST