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SCSI fixes on 20171205 

We have a bunch of fixes for aacraid, a set of coherency fixes that
 only affect non-coherent platforms and one coccinelle detected null
 check after use.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A bunch of fixes for aacraid, a set of coherency fixes that only
  affect non-coherent platforms and one coccinelle detected null check
  after use"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: libsas: align sata_device's rps_resp on a cacheline
  scsi: use dma_get_cache_alignment() as minimum DMA alignment
  scsi: dma-mapping: always provide dma_get_cache_alignment
  scsi: ufs: ufshcd: fix potential NULL pointer dereference in ufshcd_config_vreg
  scsi: aacraid: Prevent crash in case of free interrupt during scsi EH path
  scsi: aacraid: Perform initialization reset only once
  scsi: aacraid: Check for PCI state of device in a generic way
This commit is contained in:
Linus Torvalds 2017-12-05 10:31:32 -08:00
parent e6cdd80a83 c2e8fbf908
commit 13231cacce
9 changed files with 43 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/scsi/aacraid/aacraid.h
View File

@ -1673,6 +1673,7 @@ struct aac_dev
struct aac_hba_map_info hba_map[AAC_MAX_BUSES][AAC_MAX_TARGETS];
u8 adapter_shutdown;
u32 handle_pci_error;
bool init_reset;
};
#define aac_adapter_interrupt(dev) \

35
drivers/scsi/aacraid/commsup.c
View File

@ -467,35 +467,6 @@ int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw
return 0;
}
#ifdef CONFIG_EEH
static inline int aac_check_eeh_failure(struct aac_dev *dev)
{
/* Check for an EEH failure for the given
* device node. Function eeh_dev_check_failure()
* returns 0 if there has not been an EEH error
* otherwise returns a non-zero value.
*
* Need to be called before any PCI operation,
* i.e.,before aac_adapter_check_health()
*/
struct eeh_dev *edev = pci_dev_to_eeh_dev(dev->pdev);
if (eeh_dev_check_failure(edev)) {
/* The EEH mechanisms will handle this
* error and reset the device if
* necessary.
*/
return 1;
}
return 0;
}
#else
static inline int aac_check_eeh_failure(struct aac_dev *dev)
{
return 0;
}
#endif
/*
* Define the highest level of host to adapter communication routines.
* These routines will support host to adapter FS commuication. These
@ -701,7 +672,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
return -ETIMEDOUT;
}
if (aac_check_eeh_failure(dev))
if (unlikely(pci_channel_offline(dev->pdev)))
return -EFAULT;
if ((blink = aac_adapter_check_health(dev)) > 0) {
@ -801,7 +772,7 @@ int aac_hba_send(u8 command, struct fib *fibptr, fib_callback callback,
spin_unlock_irqrestore(&fibptr->event_lock, flags);
if (aac_check_eeh_failure(dev))
if (unlikely(pci_channel_offline(dev->pdev)))
return -EFAULT;
fibptr->flags |= FIB_CONTEXT_FLAG_WAIT;
@ -1583,6 +1554,7 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
* will ensure that i/o is queisced and the card is flushed in that
* case.
*/
aac_free_irq(aac);
aac_fib_map_free(aac);
dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr,
aac->comm_phys);
@ -1590,7 +1562,6 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
aac->comm_phys = 0;
kfree(aac->queues);
aac->queues = NULL;
aac_free_irq(aac);
kfree(aac->fsa_dev);
aac->fsa_dev = NULL;

3
drivers/scsi/aacraid/linit.c
View File

@ -1680,6 +1680,9 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
aac->cardtype = index;
INIT_LIST_HEAD(&aac->entry);
if (aac_reset_devices || reset_devices)
aac->init_reset = true;
aac->fibs = kzalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
if (!aac->fibs)
goto out_free_host;

15
drivers/scsi/aacraid/rx.c
View File

@ -561,11 +561,16 @@ int _aac_rx_init(struct aac_dev *dev)
dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
!aac_rx_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
/* Make sure the Hardware FIFO is empty */
while ((++restart < 512) &&
(rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
if (((status & 0x0c) != 0x0c) || dev->init_reset) {
dev->init_reset = false;
if (!aac_rx_restart_adapter(dev, 0, IOP_HWSOFT_RESET)) {
/* Make sure the Hardware FIFO is empty */
while ((++restart < 512) &&
(rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
}
}
/*
* Check to see if the board panic'd while booting.
*/

20
drivers/scsi/aacraid/src.c
View File

@ -868,9 +868,13 @@ int aac_src_init(struct aac_dev *dev)
/* Failure to reset here is an option ... */
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
if ((aac_reset_devices || reset_devices) &&
!aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
++restart;
if (dev->init_reset) {
dev->init_reset = false;
if (!aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
++restart;
}
/*
* Check to see if the board panic'd while booting.
*/
@ -1014,9 +1018,13 @@ int aac_srcv_init(struct aac_dev *dev)
/* Failure to reset here is an option ... */
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
if ((aac_reset_devices || reset_devices) &&
!aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
++restart;
if (dev->init_reset) {
dev->init_reset = false;
if (!aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
++restart;
}
/*
* Check to see if flash update is running.
* Wait for the adapter to be up and running. Wait up to 5 minutes

10
drivers/scsi/scsi_lib.c
View File

@ -2148,11 +2148,13 @@ void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q)
q->limits.cluster = 0;
/*
* set a reasonable default alignment on word boundaries: the
* host and device may alter it using
* blk_queue_update_dma_alignment() later.
* Set a reasonable default alignment: The larger of 32-byte (dword),
* which is a common minimum for HBAs, and the minimum DMA alignment,
* which is set by the platform.
*
* Devices that require a bigger alignment can increase it later.
*/
blk_queue_dma_alignment(q, 0x03);
blk_queue_dma_alignment(q, max(4, dma_get_cache_alignment()) - 1);
}
EXPORT_SYMBOL_GPL(__scsi_init_queue);

7
drivers/scsi/ufs/ufshcd.c
View File

@ -6559,12 +6559,15 @@ static int ufshcd_config_vreg(struct device *dev,
struct ufs_vreg *vreg, bool on)
{
int ret = 0;
struct regulator *reg = vreg->reg;
const char *name = vreg->name;
struct regulator *reg;
const char *name;
int min_uV, uA_load;
BUG_ON(!vreg);
reg = vreg->reg;
name = vreg->name;
if (regulator_count_voltages(reg) > 0) {
min_uV = on ? vreg->min_uV : 0;
ret = regulator_set_voltage(reg, min_uV, vreg->max_uV);

2
include/linux/dma-mapping.h
View File

@ -704,7 +704,6 @@ static inline void *dma_zalloc_coherent(struct device *dev, size_t size,
return ret;
}
#ifdef CONFIG_HAS_DMA
static inline int dma_get_cache_alignment(void)
{
#ifdef ARCH_DMA_MINALIGN
@ -712,7 +711,6 @@ static inline int dma_get_cache_alignment(void)
#endif
return 1;
}
#endif
/* flags for the coherent memory api */
#define DMA_MEMORY_EXCLUSIVE 0x01

2
include/scsi/libsas.h
View File

@ -159,11 +159,11 @@ struct expander_device {
struct sata_device {
unsigned int class;
struct smp_resp rps_resp; /* report_phy_sata_resp */
u8 port_no; /* port number, if this is a PM (Port) */
struct ata_port *ap;
struct ata_host ata_host;
struct smp_resp rps_resp ____cacheline_aligned; /* report_phy_sata_resp */
u8 fis[ATA_RESP_FIS_SIZE];
};