From 8418852d11f0bbaeebeedd4243560d8fdc85410d Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Thu, 15 Mar 2007 10:26:05 -0700 Subject: [SCSI] aacraid: add restart adapter platform function Received from Mark Salyzyn, This patch updates the adapter restart function to deal with some adapters that have specific IOP reset needs. Since the code for restarting the adapter was in two places, changed over to utilizing a platform function in one place. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'drivers/scsi/aacraid/commsup.c') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 1b97f60..55bf6f3 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1035,7 +1035,6 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) static int _aac_reset_adapter(struct aac_dev *aac) { int index, quirks; - u32 ret; int retval; struct Scsi_Host *host; struct scsi_device *dev; @@ -1059,20 +1058,10 @@ static int _aac_reset_adapter(struct aac_dev *aac) * If a positive health, means in a known DEAD PANIC * state and the adapter could be reset to `try again'. */ - retval = aac_adapter_check_health(aac); - if (retval == 0) - retval = aac_adapter_sync_cmd(aac, IOP_RESET_ALWAYS, - 0, 0, 0, 0, 0, 0, &ret, NULL, NULL, NULL, NULL); - if (retval) - retval = aac_adapter_sync_cmd(aac, IOP_RESET, - 0, 0, 0, 0, 0, 0, &ret, NULL, NULL, NULL, NULL); + retval = aac_adapter_restart(aac, aac_adapter_check_health(aac)); if (retval) goto out; - if (ret != 0x00000001) { - retval = -ENODEV; - goto out; - } /* * Loop through the fibs, close the synchronous FIBS -- cgit v1.1 From a8166a52968216ae079a5530ac3269147de2ef31 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Thu, 15 Mar 2007 10:26:22 -0700 Subject: [SCSI] aacraid: Fix struct element name issue Received from Mark Salyzyn, This patch is to resolve a namespace issue that will result from a patch expected in the future that adds a new interface; rationalized as correcting a long term issue where hw_fib, instead of hw_fib_va, refers to the virtual address space and hw_fib_pa refers to the physical address space. A small fragment of this patch also cleans up an unused variable that was close to the patch fragments. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 54 +++++++++++++++++++----------------------- 1 file changed, 25 insertions(+), 29 deletions(-) (limited to 'drivers/scsi/aacraid/commsup.c') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 55bf6f3..e67ff13 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -94,7 +94,7 @@ void aac_fib_map_free(struct aac_dev *dev) int aac_fib_setup(struct aac_dev * dev) { struct fib *fibptr; - struct hw_fib *hw_fib_va; + struct hw_fib *hw_fib; dma_addr_t hw_fib_pa; int i; @@ -106,24 +106,24 @@ int aac_fib_setup(struct aac_dev * dev) if (i<0) return -ENOMEM; - hw_fib_va = dev->hw_fib_va; + hw_fib = dev->hw_fib_va; hw_fib_pa = dev->hw_fib_pa; - memset(hw_fib_va, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); + memset(hw_fib, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); /* * Initialise the fibs */ for (i = 0, fibptr = &dev->fibs[i]; i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++, fibptr++) { fibptr->dev = dev; - fibptr->hw_fib = hw_fib_va; - fibptr->data = (void *) fibptr->hw_fib->data; + fibptr->hw_fib_va = hw_fib; + fibptr->data = (void *) fibptr->hw_fib_va->data; fibptr->next = fibptr+1; /* Forward chain the fibs */ init_MUTEX_LOCKED(&fibptr->event_wait); spin_lock_init(&fibptr->event_lock); - hw_fib_va->header.XferState = cpu_to_le32(0xffffffff); - hw_fib_va->header.SenderSize = cpu_to_le16(dev->max_fib_size); + hw_fib->header.XferState = cpu_to_le32(0xffffffff); + hw_fib->header.SenderSize = cpu_to_le16(dev->max_fib_size); fibptr->hw_fib_pa = hw_fib_pa; - hw_fib_va = (struct hw_fib *)((unsigned char *)hw_fib_va + dev->max_fib_size); + hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + dev->max_fib_size); hw_fib_pa = hw_fib_pa + dev->max_fib_size; } /* @@ -166,7 +166,7 @@ struct fib *aac_fib_alloc(struct aac_dev *dev) * Null out fields that depend on being zero at the start of * each I/O */ - fibptr->hw_fib->header.XferState = 0; + fibptr->hw_fib_va->header.XferState = 0; fibptr->callback = NULL; fibptr->callback_data = NULL; @@ -191,10 +191,10 @@ void aac_fib_free(struct fib *fibptr) fibptr->next = fibptr->dev->timeout_fib; fibptr->dev->timeout_fib = fibptr; } else { - if (fibptr->hw_fib->header.XferState != 0) { + if (fibptr->hw_fib_va->header.XferState != 0) { printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", (void*)fibptr, - le32_to_cpu(fibptr->hw_fib->header.XferState)); + le32_to_cpu(fibptr->hw_fib_va->header.XferState)); } fibptr->next = fibptr->dev->free_fib; fibptr->dev->free_fib = fibptr; @@ -211,7 +211,7 @@ void aac_fib_free(struct fib *fibptr) void aac_fib_init(struct fib *fibptr) { - struct hw_fib *hw_fib = fibptr->hw_fib; + struct hw_fib *hw_fib = fibptr->hw_fib_va; hw_fib->header.StructType = FIB_MAGIC; hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size); @@ -231,7 +231,7 @@ void aac_fib_init(struct fib *fibptr) static void fib_dealloc(struct fib * fibptr) { - struct hw_fib *hw_fib = fibptr->hw_fib; + struct hw_fib *hw_fib = fibptr->hw_fib_va; BUG_ON(hw_fib->header.StructType != FIB_MAGIC); hw_fib->header.XferState = 0; } @@ -386,7 +386,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, void *callback_data) { struct aac_dev * dev = fibptr->dev; - struct hw_fib * hw_fib = fibptr->hw_fib; + struct hw_fib * hw_fib = fibptr->hw_fib_va; unsigned long flags = 0; unsigned long qflags; @@ -430,7 +430,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, */ hw_fib->header.Command = cpu_to_le16(command); hw_fib->header.XferState |= cpu_to_le32(SentFromHost); - fibptr->hw_fib->header.Flags = 0; /* 0 the flags field - internal only*/ + fibptr->hw_fib_va->header.Flags = 0; /* 0 the flags field - internal only*/ /* * Set the size of the Fib we want to send to the adapter */ @@ -462,7 +462,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, dprintk((KERN_DEBUG " Command = %d.\n", le32_to_cpu(hw_fib->header.Command))); dprintk((KERN_DEBUG " SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount *)fib_data(fibptr))->command))); dprintk((KERN_DEBUG " XferState = %x.\n", le32_to_cpu(hw_fib->header.XferState))); - dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib)); + dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib_va)); dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); @@ -624,7 +624,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) { - struct hw_fib * hw_fib = fibptr->hw_fib; + struct hw_fib * hw_fib = fibptr->hw_fib_va; struct aac_dev * dev = fibptr->dev; struct aac_queue * q; unsigned long nointr = 0; @@ -688,7 +688,7 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) int aac_fib_complete(struct fib *fibptr) { - struct hw_fib * hw_fib = fibptr->hw_fib; + struct hw_fib * hw_fib = fibptr->hw_fib_va; /* * Check for a fib which has already been completed @@ -774,9 +774,8 @@ void aac_printf(struct aac_dev *dev, u32 val) #define AIF_SNIFF_TIMEOUT (30*HZ) static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) { - struct hw_fib * hw_fib = fibptr->hw_fib; + struct hw_fib * hw_fib = fibptr->hw_fib_va; struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data; - int busy; u32 container; struct scsi_device *device; enum { @@ -988,9 +987,6 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) * behind you. */ - busy = 0; - - /* * Find the scsi_device associated with the SCSI address, * and mark it as changed, invalidating the cache. This deals @@ -1068,8 +1064,8 @@ static int _aac_reset_adapter(struct aac_dev *aac) */ for (index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) { struct fib *fib = &aac->fibs[index]; - if (!(fib->hw_fib->header.XferState & cpu_to_le32(NoResponseExpected | Async)) && - (fib->hw_fib->header.XferState & cpu_to_le32(ResponseExpected))) { + if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) && + (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected))) { unsigned long flagv; spin_lock_irqsave(&fib->event_lock, flagv); up(&fib->event_wait); @@ -1237,7 +1233,7 @@ int aac_check_health(struct aac_dev * aac) memset(hw_fib, 0, sizeof(struct hw_fib)); memset(fib, 0, sizeof(struct fib)); - fib->hw_fib = hw_fib; + fib->hw_fib_va = hw_fib; fib->dev = aac; aac_fib_init(fib); fib->type = FSAFS_NTC_FIB_CONTEXT; @@ -1343,11 +1339,11 @@ int aac_command_thread(void *data) * do anything at this point since we don't have * anything defined for this thread to do. */ - hw_fib = fib->hw_fib; + hw_fib = fib->hw_fib_va; memset(fib, 0, sizeof(struct fib)); fib->type = FSAFS_NTC_FIB_CONTEXT; fib->size = sizeof( struct fib ); - fib->hw_fib = hw_fib; + fib->hw_fib_va = hw_fib; fib->data = hw_fib->data; fib->dev = dev; /* @@ -1474,7 +1470,7 @@ int aac_command_thread(void *data) */ memcpy(hw_newfib, hw_fib, sizeof(struct hw_fib)); memcpy(newfib, fib, sizeof(struct fib)); - newfib->hw_fib = hw_newfib; + newfib->hw_fib_va = hw_newfib; /* * Put the FIB onto the * fibctx's fibs -- cgit v1.1 From 33bb3b296207ff4f9e3b8dddb623e645ee1b8809 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Thu, 15 Mar 2007 10:27:21 -0700 Subject: [SCSI] aacraid: Fix ioctl handling when adapter resets Received from Mark Salyzyn, Outstanding ioctl calls still have some problems with aborting cleanly in the face of a reset iop recovery action should the adapter ever enter into a Firmware Assert (BlinkLED) condition. The enclosed patch resolves some uncovered flawed handling. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'drivers/scsi/aacraid/commsup.c') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index e67ff13..c933df3 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -513,15 +513,15 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, } udelay(5); } - } else if (down_interruptible(&fibptr->event_wait)) { - spin_lock_irqsave(&fibptr->event_lock, flags); - if (fibptr->done == 0) { - fibptr->done = 2; /* Tell interrupt we aborted */ - spin_unlock_irqrestore(&fibptr->event_lock, flags); - return -EINTR; - } + } else + (void)down_interruptible(&fibptr->event_wait); + spin_lock_irqsave(&fibptr->event_lock, flags); + if (fibptr->done == 0) { + fibptr->done = 2; /* Tell interrupt we aborted */ spin_unlock_irqrestore(&fibptr->event_lock, flags); + return -EINTR; } + spin_unlock_irqrestore(&fibptr->event_lock, flags); BUG_ON(fibptr->done == 0); if((fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)){ @@ -1062,7 +1062,7 @@ static int _aac_reset_adapter(struct aac_dev *aac) /* * Loop through the fibs, close the synchronous FIBS */ - for (index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) { + for (retval = 1, index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) { struct fib *fib = &aac->fibs[index]; if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) && (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected))) { @@ -1071,8 +1071,12 @@ static int _aac_reset_adapter(struct aac_dev *aac) up(&fib->event_wait); spin_unlock_irqrestore(&fib->event_lock, flagv); schedule(); + retval = 0; } } + /* Give some extra time for ioctls to complete. */ + if (retval == 0) + ssleep(2); index = aac->cardtype; /* -- cgit v1.1 From 03d4433721880bf1972c924b168e4e1dd3c59d53 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Thu, 15 Mar 2007 10:27:45 -0700 Subject: [SCSI] aacraid: Improved error handling Received from Mark Salyzyn, This set of fixes improve error handling stability of the driver. A popular manifestation of the problems is an NULL pointer reference in the interrupt handler when referencing portions of the scsi command context, or in the scsi_done handling when an offlined device is referenced. The aacraid driver currently does not get notification of orphaned command completions due to devices going offline. The driver also fails to handle the commands that are finished by the error handler, and thus can complete again later at the hands of the adapter causing situations of completion of an invalid scsi command context. Test Unit Ready calls abort assuming that the abort was successful, but are not, and thus when the interrupt from the adapter occurs, they reference invalid command contexts. We add in a TIMED_OUT flag to inform the aacraid FIB context that the interrupt service should merely release the driver resources and not complete the command up. We take advantage of this with the abort handler as well for select abortable commands. And we detect and react if a command that can not be aborted is currently still outstanding to the controller when reissued by the retry mechanism. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) (limited to 'drivers/scsi/aacraid/commsup.c') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index c933df3..a23d7e5 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -5,7 +5,7 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -178,7 +178,6 @@ struct fib *aac_fib_alloc(struct aac_dev *dev) * @fibptr: fib to free up * * Frees up a fib and places it on the appropriate queue - * (either free or timed out) */ void aac_fib_free(struct fib *fibptr) @@ -186,19 +185,15 @@ void aac_fib_free(struct fib *fibptr) unsigned long flags; spin_lock_irqsave(&fibptr->dev->fib_lock, flags); - if (fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT) { + if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) aac_config.fib_timeouts++; - fibptr->next = fibptr->dev->timeout_fib; - fibptr->dev->timeout_fib = fibptr; - } else { - if (fibptr->hw_fib_va->header.XferState != 0) { - printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", - (void*)fibptr, - le32_to_cpu(fibptr->hw_fib_va->header.XferState)); - } - fibptr->next = fibptr->dev->free_fib; - fibptr->dev->free_fib = fibptr; - } + if (fibptr->hw_fib_va->header.XferState != 0) { + printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", + (void*)fibptr, + le32_to_cpu(fibptr->hw_fib_va->header.XferState)); + } + fibptr->next = fibptr->dev->free_fib; + fibptr->dev->free_fib = fibptr; spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags); } -- cgit v1.1 From 912d4e8851389eee5c289ce0a7953e9067198232 Mon Sep 17 00:00:00 2001 From: "Salyzyn, Mark" Date: Mon, 26 Mar 2007 09:21:14 -0400 Subject: [SCSI] aacraid: Add likely() and unlikely() Add some likely() and unlikely() compiler hints in some of the aacraid hardware interface layers. There should be no operational side effects resulting from this patch and the changes should be mostly benign on x86 platforms. Signed-off-by: Mark Salyzyn Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/scsi/aacraid/commsup.c') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index a23d7e5..5824a75 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -519,11 +519,9 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, spin_unlock_irqrestore(&fibptr->event_lock, flags); BUG_ON(fibptr->done == 0); - if((fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)){ + if(unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) return -ETIMEDOUT; - } else { - return 0; - } + return 0; } /* * If the user does not want a response than return success otherwise -- cgit v1.1