From: Xiangliang Yu Date: Thu, 29 Sep 2011 07:32:37 +0000 (-0700) Subject: [SCSI] mvsas: fix expander link error X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6ceae7c6234f2961dc59912412e8c0706d825873;p=linux-beck.git [SCSI] mvsas: fix expander link error Expanders fail to link when the phy rates are mismatched. Signed-off-by: Xiangliang Yu Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c index f2ac01fd09c0..ab2a71fd0fde 100644 --- a/drivers/scsi/mvsas/mv_sas.c +++ b/drivers/scsi/mvsas/mv_sas.c @@ -396,7 +396,7 @@ static int mvs_task_prep_smp(struct mvs_info *mvi, /* generate open address frame hdr (first 12 bytes) */ /* initiator, SMP, ftype 1h */ buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01; - buf_oaf[1] = dev->linkrate & 0xf; + buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */ memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); @@ -541,7 +541,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, /* generate open address frame hdr (first 12 bytes) */ /* initiator, STP, ftype 1h */ buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1; - buf_oaf[1] = dev->linkrate & 0xf; + buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); @@ -649,7 +649,7 @@ static int mvs_task_prep_ssp(struct mvs_info *mvi, /* generate open address frame hdr (first 12 bytes) */ /* initiator, SSP, ftype 1h */ buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1; - buf_oaf[1] = dev->linkrate & 0xf; + buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);