diff options
| author | Mark Haverkamp <markh@osdl.org> | 2005-10-24 10:52:22 -0700 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-10-28 11:41:53 -0500 |
| commit | 8e0c5ebde82b08f6d996e11983890fc4cc085fab (patch) | |
| tree | 3ba38ff8e7b9203b47d038c215d9c7d623c250ba /drivers/scsi/aacraid/comminit.c | |
| parent | 38a9a621aba953ddb8051547e98c10ec3c741312 (diff) | |
[SCSI] aacraid: Newer adapter communication iterface support
Received from Mark Salyzyn.
This patch adds the 'new comm' interface, which modern AAC based
adapters that are less than a year old support in the name of much
improved performance. These modern adapters support both the legacy and
the 'new comm' interfaces.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aacraid/comminit.c')
| -rw-r--r-- | drivers/scsi/aacraid/comminit.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 59a341b2aed..82821d331c0 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -116,6 +116,10 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co } init->InitFlags = 0; + if (dev->new_comm_interface) { + init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); + dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); + } init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); init->MaxFibSize = cpu_to_le32(dev->max_fib_size); @@ -315,12 +319,33 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) - sizeof(struct aac_fibhdr) - sizeof(struct aac_write) + sizeof(struct sgentry)) / sizeof(struct sgentry); + dev->new_comm_interface = 0; dev->raw_io_64 = 0; if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && (status[0] == 0x00000001)) { if (status[1] & AAC_OPT_NEW_COMM_64) dev->raw_io_64 = 1; + if (status[1] & AAC_OPT_NEW_COMM) + dev->new_comm_interface = dev->a_ops.adapter_send != 0; + if (dev->new_comm_interface && (status[2] > dev->base_size)) { + iounmap(dev->regs.sa); + dev->base_size = status[2]; + dprintk((KERN_DEBUG "ioremap(%lx,%d)\n", + host->base, status[2])); + dev->regs.sa = ioremap(host->base, status[2]); + if (dev->regs.sa == NULL) { + /* remap failed, go back ... */ + dev->new_comm_interface = 0; + dev->regs.sa = ioremap(host->base, + AAC_MIN_FOOTPRINT_SIZE); + if (dev->regs.sa == NULL) { + printk(KERN_WARNING + "aacraid: unable to map adapter.\n"); + return NULL; + } + } + } } if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, 0, 0, 0, 0, 0, 0, |