diff options
Diffstat (limited to 'drivers/scsi/libsas/sas_host_smp.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_host_smp.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/scsi/libsas/sas_host_smp.c b/drivers/scsi/libsas/sas_host_smp.c index bb8f49269a68..d24792575169 100644 --- a/drivers/scsi/libsas/sas_host_smp.c +++ b/drivers/scsi/libsas/sas_host_smp.c @@ -187,11 +187,14 @@ static void sas_phy_control(struct sas_ha_struct *sas_ha, u8 phy_id, struct sas_internal *i = to_sas_internal(sas_ha->core.shost->transportt); struct sas_phy_linkrates rates; + struct asd_sas_phy *asd_phy; if (phy_id >= sas_ha->num_phys) { resp_data[2] = SMP_RESP_NO_PHY; return; } + + asd_phy = sas_ha->sas_phy[phy_id]; switch (phy_op) { case PHY_FUNC_NOP: case PHY_FUNC_LINK_RESET: @@ -210,7 +213,13 @@ static void sas_phy_control(struct sas_ha_struct *sas_ha, u8 phy_id, rates.minimum_linkrate = min; rates.maximum_linkrate = max; - if (i->dft->lldd_control_phy(sas_ha->sas_phy[phy_id], phy_op, &rates)) + /* filter reset requests through libata eh */ + if (phy_op == PHY_FUNC_LINK_RESET && sas_try_ata_reset(asd_phy) == 0) { + resp_data[2] = SMP_RESP_FUNC_ACC; + return; + } + + if (i->dft->lldd_control_phy(asd_phy, phy_op, &rates)) resp_data[2] = SMP_RESP_FUNC_FAILED; else resp_data[2] = SMP_RESP_FUNC_ACC; @@ -246,9 +255,9 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, } local_irq_disable(); - buf = kmap_atomic(bio_page(req->bio), KM_USER0) + bio_offset(req->bio); + buf = kmap_atomic(bio_page(req->bio)); memcpy(req_data, buf, blk_rq_bytes(req)); - kunmap_atomic(buf - bio_offset(req->bio), KM_USER0); + kunmap_atomic(buf - bio_offset(req->bio)); local_irq_enable(); if (req_data[0] != SMP_REQUEST) @@ -361,10 +370,10 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, } local_irq_disable(); - buf = kmap_atomic(bio_page(rsp->bio), KM_USER0) + bio_offset(rsp->bio); + buf = kmap_atomic(bio_page(rsp->bio)); memcpy(buf, resp_data, blk_rq_bytes(rsp)); flush_kernel_dcache_page(bio_page(rsp->bio)); - kunmap_atomic(buf - bio_offset(rsp->bio), KM_USER0); + kunmap_atomic(buf - bio_offset(rsp->bio)); local_irq_enable(); out: |