diff options
Diffstat (limited to 'drivers/scsi/aacraid/comminit.c')
| -rw-r--r-- | drivers/scsi/aacraid/comminit.c | 86 |
1 files changed, 84 insertions, 2 deletions
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 34a4feb1dc0d..43557bf661f6 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -39,6 +39,7 @@ #include <linux/blkdev.h> #include <linux/completion.h> #include <linux/mm.h> +#include <scsi/scsi_host.h> #include <asm/semaphore.h> #include "aacraid.h" @@ -49,8 +50,8 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co { unsigned char *base; unsigned long size, align; - unsigned long fibsize = 4096; - unsigned long printfbufsiz = 256; + const unsigned long fibsize = 4096; + const unsigned long printfbufsiz = 256; struct aac_init *init; dma_addr_t phys; @@ -74,6 +75,8 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init = dev->init; init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); + if (dev->max_fib_size != sizeof(struct hw_fib)) + init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION); init->fsrev = cpu_to_le32(dev->fsrev); @@ -110,6 +113,10 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); } + init->InitFlags = 0; + 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); /* * Increment the base address by the amount already used @@ -173,6 +180,8 @@ int aac_send_shutdown(struct aac_dev * dev) int status; fibctx = fib_alloc(dev); + if (!fibctx) + return -ENOMEM; fib_init(fibctx); cmd = (struct aac_close *) fib_data(fibctx); @@ -293,6 +302,79 @@ static int aac_comm_init(struct aac_dev * dev) struct aac_dev *aac_init_adapter(struct aac_dev *dev) { + u32 status[5]; + struct Scsi_Host * host = dev->scsi_host_ptr; + + /* + * Check the preferred comm settings, defaults from template. + */ + dev->max_fib_size = sizeof(struct hw_fib); + dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size + - sizeof(struct aac_fibhdr) + - sizeof(struct aac_write) + sizeof(struct sgmap)) + / sizeof(struct sgmap); + if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, + 0, 0, 0, 0, 0, 0, + status+0, status+1, status+2, status+3, status+4)) + && (status[0] == 0x00000001)) { + /* + * status[1] >> 16 maximum command size in KB + * status[1] & 0xFFFF maximum FIB size + * status[2] >> 16 maximum SG elements to driver + * status[2] & 0xFFFF maximum SG elements from driver + * status[3] & 0xFFFF maximum number FIBs outstanding + */ + host->max_sectors = (status[1] >> 16) << 1; + dev->max_fib_size = status[1] & 0xFFFF; + host->sg_tablesize = status[2] >> 16; + dev->sg_tablesize = status[2] & 0xFFFF; + host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; + /* + * NOTE: + * All these overrides are based on a fixed internal + * knowledge and understanding of existing adapters, + * acbsize should be set with caution. + */ + if (acbsize == 512) { + host->max_sectors = AAC_MAX_32BIT_SGBCOUNT; + dev->max_fib_size = 512; + dev->sg_tablesize = host->sg_tablesize + = (512 - sizeof(struct aac_fibhdr) + - sizeof(struct aac_write) + sizeof(struct sgmap)) + / sizeof(struct sgmap); + host->can_queue = AAC_NUM_IO_FIB; + } else if (acbsize == 2048) { + host->max_sectors = 512; + dev->max_fib_size = 2048; + host->sg_tablesize = 65; + dev->sg_tablesize = 81; + host->can_queue = 512 - AAC_NUM_MGT_FIB; + } else if (acbsize == 4096) { + host->max_sectors = 1024; + dev->max_fib_size = 4096; + host->sg_tablesize = 129; + dev->sg_tablesize = 166; + host->can_queue = 256 - AAC_NUM_MGT_FIB; + } else if (acbsize == 8192) { + host->max_sectors = 2048; + dev->max_fib_size = 8192; + host->sg_tablesize = 257; + dev->sg_tablesize = 337; + host->can_queue = 128 - AAC_NUM_MGT_FIB; + } else if (acbsize > 0) { + printk("Illegal acbsize=%d ignored\n", acbsize); + } + } + { + + if (numacb > 0) { + if (numacb < host->can_queue) + host->can_queue = numacb; + else + printk("numacb=%d ignored\n", numacb); + } + } + /* * Ok now init the communication subsystem */ |