diff options
| author | Matt Gates <matt.gates@hp.com> | 2014-02-18 13:55:12 -0600 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2014-03-15 10:19:01 -0700 |
| commit | e1d9cbfa09cdd39c4821777a6980dd643e5493ad (patch) | |
| tree | e3652ca1dbfb0cb74f6572a2481438b9c6f3a0d4 | |
| parent | a93aa1fe00a461690f0d0a9ed236b646056d1223 (diff) | |
| download | linux-e1d9cbfa09cdd39c4821777a6980dd643e5493ad.tar.bz2 | |
[SCSI] hpsa: mark last scatter gather element as the last
This is normally optional, but for SSD Smart Path support (in
subsequent patches) it is required.
Signed-off-by: Matt Gates <matthew.gates@hp.com>
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/hpsa.c | 8 | ||||
| -rw-r--r-- | drivers/scsi/hpsa_cmd.h | 1 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index eed5f03206d1..f867e46c3991 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1438,6 +1438,7 @@ static int hpsa_map_one(struct pci_dev *pdev, cp->SG[0].Addr.upper = (u32) ((addr64 >> 32) & (u64) 0x00000000FFFFFFFF); cp->SG[0].Len = buflen; + cp->SG[0].Ext = HPSA_SG_LAST; /* we are not chaining */ cp->Header.SGList = (u8) 1; /* no. SGs contig in this cmd */ cp->Header.SGTotal = (u16) 1; /* total sgs in this cmd list */ return 0; @@ -2139,7 +2140,7 @@ static int hpsa_scatter_gather(struct ctlr_info *h, curr_sg->Addr.lower = (u32) (addr64 & 0x0FFFFFFFFULL); curr_sg->Addr.upper = (u32) ((addr64 >> 32) & 0x0FFFFFFFFULL); curr_sg->Len = len; - curr_sg->Ext = 0; /* we are not chaining */ + curr_sg->Ext = (i < scsi_sg_count(cmd) - 1) ? 0 : HPSA_SG_LAST; curr_sg++; } @@ -3041,7 +3042,7 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) c->SG[0].Addr.lower = temp64.val32.lower; c->SG[0].Addr.upper = temp64.val32.upper; c->SG[0].Len = iocommand.buf_size; - c->SG[0].Ext = 0; /* we are not chaining*/ + c->SG[0].Ext = HPSA_SG_LAST; /* we are not chaining*/ } hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c); if (iocommand.buf_size > 0) @@ -3171,8 +3172,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) c->SG[i].Addr.lower = temp64.val32.lower; c->SG[i].Addr.upper = temp64.val32.upper; c->SG[i].Len = buff_size[i]; - /* we are not chaining */ - c->SG[i].Ext = 0; + c->SG[i].Ext = i < sg_used - 1 ? 0 : HPSA_SG_LAST; } } hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c); diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 3f96b66e5761..22cf799a2a1d 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -25,6 +25,7 @@ #define SENSEINFOBYTES 32 /* may vary between hbas */ #define SG_ENTRIES_IN_CMD 32 /* Max SG entries excluding chain blocks */ #define HPSA_SG_CHAIN 0x80000000 +#define HPSA_SG_LAST 0x40000000 #define MAXREPLYQS 256 /* Command Status value */ |