diff options
Diffstat (limited to 'drivers/message/fusion/mptsas.c')
| -rw-r--r-- | drivers/message/fusion/mptsas.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index dcdf0380be8..1c557a09b91 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -83,6 +83,7 @@ MODULE_PARM_DESC(mpt_pt_clear, static int mptsasDoneCtx = -1; static int mptsasTaskCtx = -1; static int mptsasInternalCtx = -1; /* Used only for internal commands */ +static int mptsasMgmtCtx = -1; /* @@ -359,9 +360,92 @@ static int mptsas_get_linkerrors(struct sas_phy *phy) return error; } +static int mptsas_mgmt_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, + MPT_FRAME_HDR *reply) +{ + ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_COMMAND_GOOD; + if (reply != NULL) { + ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_RF_VALID; + memcpy(ioc->sas_mgmt.reply, reply, + min(ioc->reply_sz, 4 * reply->u.reply.MsgLength)); + } + complete(&ioc->sas_mgmt.done); + return 1; +} + +static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset) +{ + MPT_ADAPTER *ioc = phy_to_ioc(phy); + SasIoUnitControlRequest_t *req; + SasIoUnitControlReply_t *reply; + MPT_FRAME_HDR *mf; + MPIHeader_t *hdr; + unsigned long timeleft; + int error = -ERESTARTSYS; + + /* not implemented for expanders */ + if (phy->identify.target_port_protocols & SAS_PROTOCOL_SMP) + return -ENXIO; + + if (down_interruptible(&ioc->sas_mgmt.mutex)) + goto out; + + mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc); + if (!mf) { + error = -ENOMEM; + goto out_unlock; + } + + hdr = (MPIHeader_t *) mf; + req = (SasIoUnitControlRequest_t *)mf; + memset(req, 0, sizeof(SasIoUnitControlRequest_t)); + req->Function = MPI_FUNCTION_SAS_IO_UNIT_CONTROL; + req->MsgContext = hdr->MsgContext; + req->Operation = hard_reset ? + MPI_SAS_OP_PHY_HARD_RESET : MPI_SAS_OP_PHY_LINK_RESET; + req->PhyNum = phy->identify.phy_identifier; + + mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf); + + timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done, + 10 * HZ); + if (!timeleft) { + /* On timeout reset the board */ + mpt_free_msg_frame(ioc, mf); + mpt_HardResetHandler(ioc, CAN_SLEEP); + error = -ETIMEDOUT; + goto out_unlock; + } + + /* a reply frame is expected */ + if ((ioc->sas_mgmt.status & + MPT_IOCTL_STATUS_RF_VALID) == 0) { + error = -ENXIO; + goto out_unlock; + } + + /* process the completed Reply Message Frame */ + reply = (SasIoUnitControlReply_t *)ioc->sas_mgmt.reply; + if (reply->IOCStatus != MPI_IOCSTATUS_SUCCESS) { + printk("%s: IOCStatus=0x%X IOCLogInfo=0x%X\n", + __FUNCTION__, + reply->IOCStatus, + reply->IOCLogInfo); + error = -ENXIO; + goto out_unlock; + } + + error = 0; + + out_unlock: + up(&ioc->sas_mgmt.mutex); + out: + return error; +} static struct sas_function_template mptsas_transport_functions = { .get_linkerrors = mptsas_get_linkerrors, + .phy_reset = mptsas_phy_reset, }; static struct scsi_transport_template *mptsas_transport_template; @@ -1105,6 +1189,8 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) sh->unique_id = ioc->id; INIT_LIST_HEAD(&ioc->sas_topology); + init_MUTEX(&ioc->sas_mgmt.mutex); + init_completion(&ioc->sas_mgmt.done); /* Verify that we won't exceed the maximum * number of chain buffers @@ -1291,6 +1377,7 @@ mptsas_init(void) mptsasTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSAS_DRIVER); mptsasInternalCtx = mpt_register(mptscsih_scandv_complete, MPTSAS_DRIVER); + mptsasMgmtCtx = mpt_register(mptsas_mgmt_done, MPTSAS_DRIVER); if (mpt_event_register(mptsasDoneCtx, mptscsih_event_process) == 0) { devtprintk((KERN_INFO MYNAM @@ -1314,6 +1401,7 @@ mptsas_exit(void) mpt_reset_deregister(mptsasDoneCtx); mpt_event_deregister(mptsasDoneCtx); + mpt_deregister(mptsasMgmtCtx); mpt_deregister(mptsasInternalCtx); mpt_deregister(mptsasTaskCtx); mpt_deregister(mptsasDoneCtx); |