From e144f7ef49ec85e9dfdf130f3a9a2372fe5fe39b Mon Sep 17 00:00:00 2001 From: Xiangliang Yu Date: Tue, 24 May 2011 22:38:10 +0800 Subject: [SCSI] mvsas: update comments Remove obsolete comments and add new comments Signed-off-by: Xiangliang Yu Signed-off-by: James Bottomley --- drivers/scsi/mvsas/mv_sas.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'drivers/scsi/mvsas/mv_sas.c') diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c index 31ca8fe25ca..4958fefff36 100644 --- a/drivers/scsi/mvsas/mv_sas.c +++ b/drivers/scsi/mvsas/mv_sas.c @@ -102,7 +102,6 @@ struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev) } -/* FIXME */ int mvs_find_dev_phyno(struct domain_device *dev, int *phyno) { unsigned long i = 0, j = 0, n = 0, num = 0; @@ -177,7 +176,6 @@ void mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard) } } -/* FIXME: locking? */ int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, void *funcdata) { @@ -504,11 +502,8 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, flags |= MCH_ATAPI; } - /* FIXME: fill in port multiplier number */ - hdr->flags = cpu_to_le32(flags); - /* FIXME: the low order order 5 bits for the TAG if enable NCQ */ if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag)) task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); else @@ -552,9 +547,6 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, buf_tmp_dma += i; /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ - /* FIXME: probably unused, for SATA. kept here just in case - * we get a STP/SATA error information record - */ slot->response = buf_tmp; hdr->status_buf = cpu_to_le64(buf_tmp_dma); if (mvi->flags & MVF_FLAG_SOC) @@ -1126,7 +1118,6 @@ static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf) MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0); s[0] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); - /* Workaround: take some ATAPI devices for ATA */ if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01)) s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10); @@ -1433,7 +1424,6 @@ static void mvs_tmf_timedout(unsigned long data) complete(&task->completion); } -/* XXX */ #define MVS_TASK_TIMEOUT 20 static int mvs_exec_internal_tmf_task(struct domain_device *dev, void *parameter, u32 para_len, struct mvs_tmf_task *tmf) @@ -1577,7 +1567,6 @@ int mvs_I_T_nexus_reset(struct domain_device *dev) mv_printk("%s for device[%x]:rc= %d\n", __func__, mvi_dev->device_id, rc); - /* housekeeper */ spin_lock_irqsave(&mvi->lock, flags); mvs_release_task(mvi, dev); spin_unlock_irqrestore(&mvi->lock, flags); @@ -1681,7 +1670,6 @@ int mvs_abort_task(struct sas_task *task) } else if (task->task_proto & SAS_PROTOCOL_SATA || task->task_proto & SAS_PROTOCOL_STP) { - /* to do free register_set */ if (SATA_DEV == dev->dev_type) { struct mvs_slot_info *slot = task->lldd_task; u32 slot_idx = (u32)(slot - mvi->slot_info); @@ -1901,6 +1889,7 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) return -1; } + /* when no device attaching, go ahead and complete by error handling*/ if (unlikely(!mvi_dev || flags)) { if (!mvi_dev) mv_dprintk("port has not device.\n"); @@ -2017,7 +2006,6 @@ void mvs_release_task(struct mvs_info *mvi, struct domain_device *dev) { int i, phyno[WIDE_PORT_MAX_PHY], num; - /* housekeeper */ num = mvs_find_dev_phyno(dev, phyno); for (i = 0; i < num; i++) mvs_do_release_task(mvi, phyno[i], dev); -- cgit v1.2.3-70-g09d2