From bb58596f6802a4959c2cea02acd272245e671c1d Mon Sep 17 00:00:00 2001 From: Dave C Boutcher Date: Tue, 15 Nov 2005 09:53:00 -0600 Subject: [SCSI] ibmvscsi kexec fix This makes ibmvscsi work correctly with the recent set of kexec patches that went in. This is based on work by Michael Ellerman, who chased this initially. He validated that it works during kexec. Handle kexec correctly in ibmvscsi. During kexec the adapter will not get cleaned up correctly, so we may need to reset it to make it sane again. Signed-off-by: Dave Boutcher Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvscsi.h | 2 +- drivers/scsi/ibmvscsi/iseries_vscsi.c | 3 ++- drivers/scsi/ibmvscsi/rpa_vscsi.c | 8 +++++++- 3 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h index 8bec0438dc8a..5b0edd1f1921 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.h +++ b/drivers/scsi/ibmvscsi/ibmvscsi.h @@ -100,7 +100,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue, void ibmvscsi_release_crq_queue(struct crq_queue *queue, struct ibmvscsi_host_data *hostdata, int max_requests); -void ibmvscsi_reset_crq_queue(struct crq_queue *queue, +int ibmvscsi_reset_crq_queue(struct crq_queue *queue, struct ibmvscsi_host_data *hostdata); void ibmvscsi_handle_crq(struct viosrp_crq *crq, diff --git a/drivers/scsi/ibmvscsi/iseries_vscsi.c b/drivers/scsi/ibmvscsi/iseries_vscsi.c index 1045872b0175..ce15d9e39621 100644 --- a/drivers/scsi/ibmvscsi/iseries_vscsi.c +++ b/drivers/scsi/ibmvscsi/iseries_vscsi.c @@ -117,9 +117,10 @@ void ibmvscsi_release_crq_queue(struct crq_queue *queue, * * no-op for iSeries */ -void ibmvscsi_reset_crq_queue(struct crq_queue *queue, +int ibmvscsi_reset_crq_queue(struct crq_queue *queue, struct ibmvscsi_host_data *hostdata) { + return 0; } /** diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c index 8bf5652f1060..75db2f5c545e 100644 --- a/drivers/scsi/ibmvscsi/rpa_vscsi.c +++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c @@ -230,6 +230,11 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue, rc = plpar_hcall_norets(H_REG_CRQ, vdev->unit_address, queue->msg_token, PAGE_SIZE); + if (rc == H_Resource) + /* maybe kexecing and resource is busy. try a reset */ + rc = ibmvscsi_reset_crq_queue(queue, + hostdata); + if (rc == 2) { /* Adapter is good, but other end is not ready */ printk(KERN_WARNING "ibmvscsi: Partner adapter not ready\n"); @@ -281,7 +286,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue, * @hostdata: ibmvscsi_host_data of host * */ -void ibmvscsi_reset_crq_queue(struct crq_queue *queue, +int ibmvscsi_reset_crq_queue(struct crq_queue *queue, struct ibmvscsi_host_data *hostdata) { int rc; @@ -309,4 +314,5 @@ void ibmvscsi_reset_crq_queue(struct crq_queue *queue, printk(KERN_WARNING "ibmvscsi: couldn't register crq--rc 0x%x\n", rc); } + return rc; } -- cgit v1.2.3 From 23443b1d6130eff8e1335e4f84eaf0577a331dcf Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Tue, 6 Dec 2005 10:57:06 -0800 Subject: [SCSI] qla2xxx: Correct mis-handling of AENs. A regression in a recent change 33135aa2a568ec1a30e734f18e5315e10516e4f3 caused the driver to mistakenly drop handling of AENs. Due to the incorrect handling, ports would not reappear after RSCNs and LIPs. Drops unused/incorrect compound #define from qla_def.h. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_def.h | 10 +--------- drivers/scsi/qla2xxx/qla_init.c | 6 +++--- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 7096945ea234..7b3efd531297 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2476,17 +2476,9 @@ typedef struct scsi_qla_host { */ #define LOOP_TRANSITION(ha) \ (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || \ - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) - -#define LOOP_NOT_READY(ha) \ - ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || \ - test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || \ - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || \ - test_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) || \ + test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || \ atomic_read(&ha->loop_state) == LOOP_DOWN) -#define LOOP_RDY(ha) (!LOOP_NOT_READY(ha)) - #define TGT_Q(ha, t) (ha->otgt[t]) #define to_qla_host(x) ((scsi_qla_host_t *) (x)->hostdata) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 2d720121a0d3..c46d2469b85f 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1259,7 +1259,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) rval = qla2x00_get_adapter_id(ha, &loop_id, &al_pa, &area, &domain, &topo); if (rval != QLA_SUCCESS) { - if (LOOP_NOT_READY(ha) || atomic_read(&ha->loop_down_timer) || + if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) || (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) { DEBUG2(printk("%s(%ld) Loop is in a transition state\n", __func__, ha->host_no)); @@ -1796,7 +1796,7 @@ qla2x00_configure_loop(scsi_qla_host_t *ha) } if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) { - if (LOOP_NOT_READY(ha)) { + if (LOOP_TRANSITION(ha)) { rval = QLA_FUNCTION_FAILED; } else { rval = qla2x00_configure_fabric(ha); @@ -2369,7 +2369,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) if (qla2x00_is_reserved_id(ha, loop_id)) continue; - if (atomic_read(&ha->loop_down_timer) || LOOP_NOT_READY(ha)) + if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha)) break; if (swl != NULL) { -- cgit v1.2.3 From 0da69df1e54146eece38e0a144051f6dd3526821 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Tue, 6 Dec 2005 10:58:06 -0800 Subject: [SCSI] qla2xxx: Correct short-WRITE status handling. Properly check FC_RESID for any non-transfered bytes regardless of firmware completion status. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_isr.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 09afc0f06bd4..5181d966fecb 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -909,6 +909,21 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) resid = resid_len; cp->resid = resid; CMD_RESID_LEN(cp) = resid; + + if (!lscsi_status && + ((unsigned)(cp->request_bufflen - resid) < + cp->underflow)) { + qla_printk(KERN_INFO, ha, + "scsi(%ld:%d:%d:%d): Mid-layer underflow " + "detected (%x of %x bytes)...returning " + "error status.\n", ha->host_no, + cp->device->channel, cp->device->id, + cp->device->lun, resid, + cp->request_bufflen); + + cp->result = DID_ERROR << 16; + break; + } } cp->result = DID_OK << 16 | lscsi_status; -- cgit v1.2.3 From f0353301e6752399ceb874ede7f44e3571c5e4f3 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Wed, 7 Dec 2005 17:46:57 -0500 Subject: [SCSI] Fix incorrect pointer in megaraid.c MODE_SENSE emulation The SCSI megaraid drive goes to great effort to kmap the scatterlist buffer (if used), but then uses the wrong pointer when copying to it afterward. Signed-off-by: Mark Lord Acked by: Ju, Seokmann Signed-off-by: James Bottomley --- drivers/scsi/megaraid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index f9792528e33f..578143e93a6f 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -664,7 +664,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) sg->offset; } else buf = cmd->request_buffer; - memset(cmd->request_buffer, 0, cmd->cmnd[4]); + memset(buf, 0, cmd->cmnd[4]); if (cmd->use_sg) { struct scatterlist *sg; -- cgit v1.2.3 From 85631672e6a8032267058b4ccbe53f1924a5d0be Mon Sep 17 00:00:00 2001 From: Michael Reed Date: Wed, 7 Dec 2005 21:46:27 -0600 Subject: [SCSI] fix OOPS due to clearing eh_action prior to aborting eh command The eh_action semaphore in scsi_eh_send_command is cleared after a command timeout. The command is subsequently aborted and the abort will try to call scsi_done() on it. Unfortunately, the scsi_eh_done() routine unconditinally completes the semaphore (which is now null). Fix this race by makiong the scsi_eh_done() routine check that the semaphore is non null before completing it (mirroring the ordinary command done/timeout logic). Signed-off-by: James Bottomley --- drivers/scsi/scsi_error.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 18c5d2523014..c0ae9e965f6f 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -422,10 +422,15 @@ static int scsi_eh_completed_normally(struct scsi_cmnd *scmd) **/ static void scsi_eh_done(struct scsi_cmnd *scmd) { + struct completion *eh_action; + SCSI_LOG_ERROR_RECOVERY(3, printk("%s scmd: %p result: %x\n", __FUNCTION__, scmd, scmd->result)); - complete(scmd->device->host->eh_action); + + eh_action = scmd->device->host->eh_action; + if (eh_action) + complete(eh_action); } /** -- cgit v1.2.3 From a8c730e85e80734412f4f73ab28496a0e8b04a7b Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 9 Dec 2005 14:42:16 +0100 Subject: [SCSI] fix panic when ejecting ieee1394 ipod The scsi_library routines don't correctly set DMA_NONE when req->data_len is zero (instead they check the command type first, so if it's write, we end up with req->data_len == 0 and direction as DMA_TO_DEVICE which confuses some drivers) Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4afef5cdcb17..097888721ec4 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1215,12 +1215,12 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req) } else { memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd)); cmd->cmd_len = req->cmd_len; - if (rq_data_dir(req) == WRITE) + if (!req->data_len) + cmd->sc_data_direction = DMA_NONE; + else if (rq_data_dir(req) == WRITE) cmd->sc_data_direction = DMA_TO_DEVICE; - else if (req->data_len) - cmd->sc_data_direction = DMA_FROM_DEVICE; else - cmd->sc_data_direction = DMA_NONE; + cmd->sc_data_direction = DMA_FROM_DEVICE; cmd->transfersize = req->data_len; cmd->allowed = 3; -- cgit v1.2.3 From 1ee9530a71686436dbeb5f31dd5b925c39cf71d7 Mon Sep 17 00:00:00 2001 From: Lothar Wassmann Date: Mon, 12 Dec 2005 16:44:05 +0000 Subject: [ARM] 3201/1: PXA27x: Prevent hangup during resume due to inadvertedly enabling MBREQ (replaces: 3198/1) Patch from Lothar Wassmann The patch makes sure, that the ouptut functions of pins are restored before restoring the Alternat Function settings, preventing pins from being intermediately configured for undefined or unwanted alternate functions. Here is the original comment: I've got a PXA270 system that uses GPIO80 as nCS4. This system did hang on resume. Digging into the problem I found that the processor stalled immediately when restoring the GAFR2_U register which restored the alternate function for GPIO80. Since the GPDR registers were restored after the GAFR registers, the offending GPIO was configured as input at this point. Thus the alternate function that was in effect after restoring the GAFR was in fact the input function "MBREQ" instead of the output function "nCS4". The "PXA27x Processor Family Developer's Manual" (Footnote in Table 6-1 on page 6-3) states that: "The MBREQ alternate function must not be enabled until the PSSR[RDH] bit field is cleared. For more details, see Table 3-15, "PSSR Bit Definitions" on page 3-71." There is another note in the Developer's Manual (chapter 24.4.2 "GPIO operation as Alternate Function" on page 24-4) stating that: "Configuring a GPIO for an alternate function that is not defined for it causes unpredictable results." Since some GPIOs have no input function defined, and to prevent inadvertedly programming the MBREQ function on some pin, the GAFR registers should be restored after the GPDR registers have been restored. Additional provisions have to be made when the MBREQ function is actually required. The corresponding GAFR bits should not be restored with the regular GAFR restore, but must be set only after the PSSR bits have been cleared. Signed-off-by: Lothar Wassmann Signed-off-by: Russell King --- arch/arm/mach-pxa/pm.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c index f74b9af112dc..852ea72d8c80 100644 --- a/arch/arm/mach-pxa/pm.c +++ b/arch/arm/mach-pxa/pm.c @@ -155,19 +155,20 @@ int pxa_pm_enter(suspend_state_t state) PSPR = 0; /* restore registers */ + RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2); + RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2); RESTORE(GAFR0_L); RESTORE(GAFR0_U); RESTORE(GAFR1_L); RESTORE(GAFR1_U); RESTORE(GAFR2_L); RESTORE(GAFR2_U); - RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2); - RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2); RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2); RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2); RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2); #ifdef CONFIG_PXA27x RESTORE(MDREFR); - RESTORE(GAFR3_L); RESTORE(GAFR3_U); RESTORE_GPLEVEL(3); - RESTORE(GPDR3); RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3); + RESTORE_GPLEVEL(3); RESTORE(GPDR3); + RESTORE(GAFR3_L); RESTORE(GAFR3_U); + RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3); RESTORE(PWER); RESTORE(PCFR); RESTORE(PRER); RESTORE(PFER); RESTORE(PKWR); #endif -- cgit v1.2.3 From 1a68de5c08be8c77c4ad208306187bd95107c7cd Mon Sep 17 00:00:00 2001 From: Brian King Date: Mon, 12 Dec 2005 13:05:08 -0600 Subject: [SCSI] fix double free of scsi request queue Current scsi scanning code appears to have a use after free bug is a LLDD's slave_alloc fails. Remove the redundant scsi_free_queue. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/scsi_scan.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 374853df9cca..be276ea8f033 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -279,7 +279,6 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, out_device_destroy: transport_destroy_device(&sdev->sdev_gendev); - scsi_free_queue(sdev->request_queue); put_device(&sdev->sdev_gendev); out: if (display_failure_msg) -- cgit v1.2.3 From 322e079f1b606e46b79bb8b8e6cf6110b5f2aa3f Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Tue, 29 Nov 2005 23:08:40 -0500 Subject: [SCSI] Negotiate correctly with async-only devices When we got a device only capable of async, we would zero out goal->period which would cause us to try PPR negotiations. Leave goal->period alone, and check goal->offset before doing PPR. Kudos to Daniel Forsgren for figuring this out. Signed-off-by: Matthew Wilcox Signed-off-by: James Bottomley --- drivers/scsi/sym53c8xx_2/sym_hipd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c index a7420cad4547..1564ca203a3e 100644 --- a/drivers/scsi/sym53c8xx_2/sym_hipd.c +++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c @@ -1405,7 +1405,6 @@ static void sym_check_goals(struct sym_hcb *np, struct scsi_target *starget, goal->iu = 0; goal->dt = 0; goal->qas = 0; - goal->period = 0; goal->offset = 0; return; } @@ -1465,7 +1464,8 @@ static int sym_prepare_nego(struct sym_hcb *np, struct sym_ccb *cp, u_char *msgp * Many devices implement PPR in a buggy way, so only use it if we * really want to. */ - if (goal->iu || goal->dt || goal->qas || (goal->period < 0xa)) { + if (goal->offset && + (goal->iu || goal->dt || goal->qas || (goal->period < 0xa))) { nego = NS_PPR; } else if (spi_width(starget) != goal->width) { nego = NS_WIDE; -- cgit v1.2.3 From c9526497cf03ee775c3a6f8ba62335735f98de7a Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Fri, 9 Dec 2005 17:45:22 -0500 Subject: [SCSI] Consolidate REQ_BLOCK_PC handling path (fix ipod panic) This follows on from Jens' patch and consolidates all of the ULD separate handlers for REQ_BLOCK_PC into a single call which has his fix for our direction bug. Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 33 +++++++++++++++++++++------------ drivers/scsi/sd.c | 16 +--------------- drivers/scsi/sr.c | 20 +++----------------- drivers/scsi/st.c | 19 +------------------ include/scsi/scsi_cmnd.h | 1 + 5 files changed, 27 insertions(+), 62 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 097888721ec4..9be5769d44aa 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1078,6 +1078,26 @@ static void scsi_generic_done(struct scsi_cmnd *cmd) scsi_io_completion(cmd, cmd->result == 0 ? cmd->bufflen : 0, 0); } +void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd, int retries) +{ + struct request *req = cmd->request; + + BUG_ON(sizeof(req->cmd) > sizeof(cmd->cmnd)); + memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd)); + cmd->cmd_len = req->cmd_len; + if (!req->data_len) + cmd->sc_data_direction = DMA_NONE; + else if (rq_data_dir(req) == WRITE) + cmd->sc_data_direction = DMA_TO_DEVICE; + else + cmd->sc_data_direction = DMA_FROM_DEVICE; + + cmd->transfersize = req->data_len; + cmd->allowed = retries; + cmd->timeout_per_command = req->timeout; +} +EXPORT_SYMBOL_GPL(scsi_setup_blk_pc_cmnd); + static int scsi_prep_fn(struct request_queue *q, struct request *req) { struct scsi_device *sdev = q->queuedata; @@ -1213,18 +1233,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req) goto kill; } } else { - memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd)); - cmd->cmd_len = req->cmd_len; - if (!req->data_len) - cmd->sc_data_direction = DMA_NONE; - else if (rq_data_dir(req) == WRITE) - cmd->sc_data_direction = DMA_TO_DEVICE; - else - cmd->sc_data_direction = DMA_FROM_DEVICE; - - cmd->transfersize = req->data_len; - cmd->allowed = 3; - cmd->timeout_per_command = req->timeout; + scsi_setup_blk_pc_cmnd(cmd, 3); cmd->done = scsi_generic_done; } } diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 8613a1317712..03fcbab30033 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -245,24 +245,10 @@ static int sd_init_command(struct scsi_cmnd * SCpnt) * SG_IO from block layer already setup, just copy cdb basically */ if (blk_pc_request(rq)) { - if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd)) - return 0; - - memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd)); - SCpnt->cmd_len = rq->cmd_len; - if (rq_data_dir(rq) == WRITE) - SCpnt->sc_data_direction = DMA_TO_DEVICE; - else if (rq->data_len) - SCpnt->sc_data_direction = DMA_FROM_DEVICE; - else - SCpnt->sc_data_direction = DMA_NONE; - - this_count = rq->data_len; + scsi_setup_blk_pc_cmnd(SCpnt, SD_PASSTHROUGH_RETRIES); if (rq->timeout) timeout = rq->timeout; - SCpnt->transfersize = rq->data_len; - SCpnt->allowed = SD_PASSTHROUGH_RETRIES; goto queue; } diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index d68cea753bb2..fb4012b5c188 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -320,25 +320,11 @@ static int sr_init_command(struct scsi_cmnd * SCpnt) * these are already setup, just copy cdb basically */ if (SCpnt->request->flags & REQ_BLOCK_PC) { - struct request *rq = SCpnt->request; + scsi_setup_blk_pc_cmnd(SCpnt, MAX_RETRIES); - if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd)) - return 0; - - memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd)); - SCpnt->cmd_len = rq->cmd_len; - if (!rq->data_len) - SCpnt->sc_data_direction = DMA_NONE; - else if (rq_data_dir(rq) == WRITE) - SCpnt->sc_data_direction = DMA_TO_DEVICE; - else - SCpnt->sc_data_direction = DMA_FROM_DEVICE; - - this_count = rq->data_len; - if (rq->timeout) - timeout = rq->timeout; + if (SCpnt->timeout_per_command) + timeout = SCpnt->timeout_per_command; - SCpnt->transfersize = rq->data_len; goto queue; } diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 7ac6ea141fff..dd592f6a2529 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4194,27 +4194,10 @@ static void st_intr(struct scsi_cmnd *SCpnt) */ static int st_init_command(struct scsi_cmnd *SCpnt) { - struct request *rq; - if (!(SCpnt->request->flags & REQ_BLOCK_PC)) return 0; - rq = SCpnt->request; - if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd)) - return 0; - - memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd)); - SCpnt->cmd_len = rq->cmd_len; - - if (rq_data_dir(rq) == WRITE) - SCpnt->sc_data_direction = DMA_TO_DEVICE; - else if (rq->data_len) - SCpnt->sc_data_direction = DMA_FROM_DEVICE; - else - SCpnt->sc_data_direction = DMA_NONE; - - SCpnt->timeout_per_command = rq->timeout; - SCpnt->transfersize = rq->data_len; + scsi_setup_blk_pc_cmnd(SCpnt, 0); SCpnt->done = st_intr; return 1; } diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 7529f4388bb4..20da282d4abb 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -151,5 +151,6 @@ extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); extern void scsi_put_command(struct scsi_cmnd *); extern void scsi_io_completion(struct scsi_cmnd *, unsigned int, unsigned int); extern void scsi_finish_command(struct scsi_cmnd *cmd); +extern void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd, int retries); #endif /* _SCSI_SCSI_CMND_H */ -- cgit v1.2.3 From 45f8245b972e360c19aec9032e2a2033b8ac3719 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 14 Dec 2005 14:57:35 +0000 Subject: [MMC] Explain the internals of mmc_power_up() It seems that people get confused about what is happening in mmc_power_up(). Add a comment to make it clear why we have a two stage process. Signed-off-by: Russell King --- drivers/mmc/mmc.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index b586a83a9b4c..eb41391e06e9 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -679,7 +679,15 @@ static void mmc_idle_cards(struct mmc_host *host) } /* - * Apply power to the MMC stack. + * Apply power to the MMC stack. This is a two-stage process. + * First, we enable power to the card without the clock running. + * We then wait a bit for the power to stabilise. Finally, + * enable the bus drivers and clock to the card. + * + * We must _NOT_ enable the clock prior to power stablising. + * + * If a host does all the power sequencing itself, ignore the + * initial MMC_POWER_UP stage. */ static void mmc_power_up(struct mmc_host *host) { -- cgit v1.2.3 From 27af4cfd11883073359bd5acab1962b0fa96a3bf Mon Sep 17 00:00:00 2001 From: Robin Holt Date: Wed, 14 Dec 2005 06:58:05 -0600 Subject: [IA64] fix for SET_PERSONALITY when CONFIG_IA32_SUPPORT is not set. Missed this when fixing the SET_PERSONALITY change. Signed-off-by: Robin Holt Signed-off-by: Tony Luck --- arch/ia64/kernel/process.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index a4da715a360c..e9904c74d2ba 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -721,11 +721,13 @@ flush_thread (void) /* drop floating-point and debug-register state if it exists: */ current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID); ia64_drop_fpu(current); +#ifdef CONFIG_IA32_SUPPORT if (IS_IA32_PROCESS(ia64_task_regs(current))) { ia32_drop_partial_page_list(current); current->thread.task_size = IA32_PAGE_OFFSET; set_fs(USER_DS); } +#endif } /* -- cgit v1.2.3 From 1542272a60ab9c0655a13ead8b7d7a661365f9fb Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 14 Dec 2005 12:55:24 -0800 Subject: [GRE]: Fix hardware checksum modification The skb_postpull_rcsum introduced a bug to the checksum modification. Although the length pulled is offset bytes, the origin of the pulling is the GRE header, not the IP header. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv4/ip_gre.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index a4c347c3b8e3..46f9d9cf7a5f 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -618,7 +618,7 @@ static int ipgre_rcv(struct sk_buff *skb) skb->mac.raw = skb->nh.raw; skb->nh.raw = __pskb_pull(skb, offset); - skb_postpull_rcsum(skb, skb->mac.raw, offset); + skb_postpull_rcsum(skb, skb->h.raw, offset); memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options)); skb->pkt_type = PACKET_HOST; #ifdef CONFIG_NET_IPGRE_BROADCAST -- cgit v1.2.3 From c2e2611425a956d25d2948c5d95d3848c4db1257 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Wed, 14 Dec 2005 22:04:22 +0000 Subject: [ARM] 3205/1: Handle new EABI relocations when loading kernel modules. Patch from Daniel Jacobowitz Handle new EABI relocations when loading kernel modules. This is necessary for CONFIG_AEABI kernels, and also for some broken (since fixed) old ABI toolchains. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King --- arch/arm/kernel/module.c | 2 ++ include/asm-arm/elf.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index 6055e1427ba3..055bf5d28894 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -101,6 +101,8 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex, break; case R_ARM_PC24: + case R_ARM_CALL: + case R_ARM_JUMP24: offset = (*(u32 *)loc & 0x00ffffff) << 2; if (offset & 0x02000000) offset -= 0x04000000; diff --git a/include/asm-arm/elf.h b/include/asm-arm/elf.h index 7da97a937548..2d44b42d1847 100644 --- a/include/asm-arm/elf.h +++ b/include/asm-arm/elf.h @@ -22,6 +22,8 @@ typedef unsigned long elf_freg_t[3]; #define R_ARM_NONE 0 #define R_ARM_PC24 1 #define R_ARM_ABS32 2 +#define R_ARM_CALL 28 +#define R_ARM_JUMP24 29 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) typedef elf_greg_t elf_gregset_t[ELF_NGREG]; -- cgit v1.2.3 From a388442c3798a345d131ff8b9d6dea0bfda3fefc Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 14 Dec 2005 16:23:16 -0800 Subject: [VLAN]: Fix hardware rx csum errors Receiving VLAN packets over a device (without VLAN assist) that is doing hardware checksumming (CHECKSUM_HW), causes errors because the VLAN code forgets to adjust the hardware checksum. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/8021q/vlan_dev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index b74864889670..f2a8750bbf1d 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -165,6 +165,9 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, skb_pull(skb, VLAN_HLEN); /* take off the VLAN header (4 bytes currently) */ + /* Need to correct hardware checksum */ + skb_postpull_rcsum(skb, vhdr, VLAN_HLEN); + /* Ok, lets check to make sure the device (dev) we * came in on is what this VLAN is attached to. */ -- cgit v1.2.3 From deb5e5c0c68e59b1bf9ede66da9e6a89f6557595 Mon Sep 17 00:00:00 2001 From: Jeremy Higdon Date: Thu, 15 Dec 2005 02:10:35 +0100 Subject: [PATCH] sgiioc4: check for no hwifs available Add a check to the sgiioc4 driver for the case where all available ide_hwifs structures are in use. Signed-off-by: Jeremy Higdon Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/sgiioc4.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index af526b671c4e..4ee597d08797 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -622,12 +622,18 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d) ide_hwif_t *hwif; int h; + /* + * Find an empty HWIF; if none available, return -ENOMEM. + */ for (h = 0; h < MAX_HWIFS; ++h) { hwif = &ide_hwifs[h]; - /* Find an empty HWIF */ if (hwif->chipset == ide_unknown) break; } + if (h == MAX_HWIFS) { + printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", d->name); + return -ENOMEM; + } /* Get the CmdBlk and CtrlBlk Base Registers */ base = pci_resource_start(dev, 0) + IOC4_CMD_OFFSET; -- cgit v1.2.3 From ceef833bae05e393859f1946a9802fb61f0febdf Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Thu, 15 Dec 2005 02:11:55 +0100 Subject: [PATCH] via82cxxx IDE: Add VT8251 ISA bridge Some motherboards (such as the Asus P5V800-MX) ship a PCI_DEVICE_ID_VIA_82C586_1 IDE controller alongside a VT8251 southbridge. This southbridge is currently unrecognised in the via82cxxx IDE driver, preventing those users from getting DMA access to disks. Signed-off-by: Daniel Drake Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/via82cxxx.c | 1 + include/linux/pci_ids.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index 7161ce0ef5aa..86fb1e0286d3 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -80,6 +80,7 @@ static struct via_isa_bridge { u16 flags; } via_isa_bridges[] = { { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, + { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 1e737e269db9..4db67b3b05cc 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1244,6 +1244,7 @@ #define PCI_DEVICE_ID_VIA_8378_0 0x3205 #define PCI_DEVICE_ID_VIA_8783_0 0x3208 #define PCI_DEVICE_ID_VIA_8237 0x3227 +#define PCI_DEVICE_ID_VIA_8251 0x3287 #define PCI_DEVICE_ID_VIA_3296_0 0x0296 #define PCI_DEVICE_ID_VIA_8231 0x8231 #define PCI_DEVICE_ID_VIA_8231_4 0x8235 -- cgit v1.2.3 From 38f9d412be1ed29ee3b41782f22fd85b1c95fbed Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Thu, 15 Dec 2005 02:12:53 +0100 Subject: [PATCH] ide: MPC8xx IDE depends on IDE=y && BLK_DEV_IDE=y The following patch adds a dependancy on IDE=y && BLK_DEV_IDE=y for the MPC8xx IDE driver. The code is not modular at the moment (init called from platform setup code). Signed-off-by: Marcelo Tosatti Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 31e649a9ff71..45579ae12c01 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -940,7 +940,7 @@ config BLK_DEV_Q40IDE config BLK_DEV_MPC8xx_IDE bool "MPC8xx IDE support" - depends on 8xx + depends on 8xx && IDE=y && BLK_DEV_IDE=y help This option provides support for IDE on Motorola MPC8xx Systems. Please see 'Type of MPC8xx IDE interface' for details. -- cgit v1.2.3 From 65e5f2e3b457b6b20a5c4481312189d141a33d24 Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Thu, 15 Dec 2005 02:16:18 +0100 Subject: [PATCH] ide: core modifications for AU1200 bart: slightly modified by me Signed-off-by: Jordan Crouse Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-dma.c | 15 ++++++--------- include/asm-mips/mach-au1x00/au1xxx_ide.h | 5 ----- include/linux/ide.h | 6 ++++++ 3 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 1e1531334c25..0523da77425a 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -90,11 +90,6 @@ #include #include -struct drive_list_entry { - const char *id_model; - const char *id_firmware; -}; - static const struct drive_list_entry drive_whitelist [] = { { "Micropolis 2112A" , "ALL" }, @@ -139,7 +134,7 @@ static const struct drive_list_entry drive_blacklist [] = { }; /** - * in_drive_list - look for drive in black/white list + * ide_in_drive_list - look for drive in black/white list * @id: drive identifier * @drive_table: list to inspect * @@ -147,7 +142,7 @@ static const struct drive_list_entry drive_blacklist [] = { * Returns 1 if the drive is found in the table. */ -static int in_drive_list(struct hd_driveid *id, const struct drive_list_entry *drive_table) +int ide_in_drive_list(struct hd_driveid *id, const struct drive_list_entry *drive_table) { for ( ; drive_table->id_model ; drive_table++) if ((!strcmp(drive_table->id_model, id->model)) && @@ -157,6 +152,8 @@ static int in_drive_list(struct hd_driveid *id, const struct drive_list_entry *d return 0; } +EXPORT_SYMBOL_GPL(ide_in_drive_list); + /** * ide_dma_intr - IDE DMA interrupt handler * @drive: the drive the interrupt is for @@ -663,7 +660,7 @@ int __ide_dma_bad_drive (ide_drive_t *drive) { struct hd_driveid *id = drive->id; - int blacklist = in_drive_list(id, drive_blacklist); + int blacklist = ide_in_drive_list(id, drive_blacklist); if (blacklist) { printk(KERN_WARNING "%s: Disabling (U)DMA for %s (blacklisted)\n", drive->name, id->model); @@ -677,7 +674,7 @@ EXPORT_SYMBOL(__ide_dma_bad_drive); int __ide_dma_good_drive (ide_drive_t *drive) { struct hd_driveid *id = drive->id; - return in_drive_list(id, drive_whitelist); + return ide_in_drive_list(id, drive_whitelist); } EXPORT_SYMBOL(__ide_dma_good_drive); diff --git a/include/asm-mips/mach-au1x00/au1xxx_ide.h b/include/asm-mips/mach-au1x00/au1xxx_ide.h index 33d275c3b84c..0c3c127e619e 100644 --- a/include/asm-mips/mach-au1x00/au1xxx_ide.h +++ b/include/asm-mips/mach-au1x00/au1xxx_ide.h @@ -87,11 +87,6 @@ typedef struct } _auide_hwif; #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA -struct drive_list_entry { - const char * id_model; - const char * id_firmware; -}; - /* HD white list */ static const struct drive_list_entry dma_white_list [] = { /* diff --git a/include/linux/ide.h b/include/linux/ide.h index a39c3c59789d..a6b28dcf8f0d 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1371,6 +1371,12 @@ void ide_init_sg_cmd(ide_drive_t *, struct request *); #define GOOD_DMA_DRIVE 1 #ifdef CONFIG_BLK_DEV_IDEDMA +struct drive_list_entry { + const char *id_model; + const char *id_firmware; +}; + +int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *); int __ide_dma_bad_drive(ide_drive_t *); int __ide_dma_good_drive(ide_drive_t *); int ide_use_dma(ide_drive_t *); -- cgit v1.2.3 From 8f29e650bffc1e22ed6b2d0b321bc77627f3bb7a Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Thu, 15 Dec 2005 02:17:46 +0100 Subject: [PATCH] ide: AU1200 IDE update Changes here include removing all of CONFIG_PM while it is being repeatedly smacked with a lead pipe, moving the BURSTMODE param to a #define (it should be defined almost always anyway), fixing the rqsize stuff, pulling ide_ioreg_t, and general cleanups and whatnot. Signed-off-by: Jordan Crouse Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/Kconfig | 8 - drivers/ide/mips/Makefile | 3 + drivers/ide/mips/au1xxx-ide.c | 1498 ++++++++++------------------- include/asm-mips/mach-au1x00/au1xxx_ide.h | 17 +- 4 files changed, 543 insertions(+), 983 deletions(-) diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 45579ae12c01..1c81174595b3 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -807,14 +807,6 @@ config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX endchoice -config BLK_DEV_IDE_AU1XXX_BURSTABLE_ON - bool "Enable burstable Mode on DbDMA" - default false - depends BLK_DEV_IDE_AU1XXX - help - This option enable the burstable Flag on DbDMA controller - (cf. "AMD Alchemy 'Au1200' Processor Data Book - PRELIMINARY"). - config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ int "Maximum transfer size (KB) per request (up to 128)" default "128" diff --git a/drivers/ide/mips/Makefile b/drivers/ide/mips/Makefile index 578e52a59588..677c7b2bac92 100644 --- a/drivers/ide/mips/Makefile +++ b/drivers/ide/mips/Makefile @@ -1 +1,4 @@ obj-$(CONFIG_BLK_DEV_IDE_SWARM) += swarm.o +obj-$(CONFIG_BLK_DEV_IDE_AU1XXX) += au1xxx-ide.o + +EXTRA_CFLAGS := -Idrivers/ide diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index 2b6327c576b9..32431dcf5d8e 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -31,865 +31,638 @@ */ #undef REALLY_SLOW_IO /* most systems can safely undef this */ -#include /* for CONFIG_BLK_DEV_IDEPCI */ #include #include #include #include -#include -#include -#include -#include +#include + #include #include #include #include +#include "ide-timing.h" + #include #include #include -#if CONFIG_PM -#include -#endif - #include #define DRV_NAME "au1200-ide" #define DRV_VERSION "1.0" -#define DRV_AUTHOR "AMD PCS / Pete Popov " -#define DRV_DESC "Au1200 IDE" - -static _auide_hwif auide_hwif; -static spinlock_t ide_tune_drive_spin_lock = SPIN_LOCK_UNLOCKED; -static spinlock_t ide_tune_chipset_spin_lock = SPIN_LOCK_UNLOCKED; -static int dbdma_init_done = 0; - -/* - * local I/O functions - */ -u8 auide_inb(unsigned long port) -{ - return (au_readb(port)); -} +#define DRV_AUTHOR "Enrico Walther / Pete Popov " -u16 auide_inw(unsigned long port) -{ - return (au_readw(port)); -} +/* enable the burstmode in the dbdma */ +#define IDE_AU1XXX_BURSTMODE 1 -u32 auide_inl(unsigned long port) -{ - return (au_readl(port)); -} +static _auide_hwif auide_hwif; +static int dbdma_init_done; -void auide_insw(unsigned long port, void *addr, u32 count) -{ #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) - _auide_hwif *ahwif = &auide_hwif; - chan_tab_t *ctp; - au1x_ddma_desc_t *dp; - - if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1, - DDMA_FLAGS_NOIE)) { - printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); - return; - } - ctp = *((chan_tab_t **)ahwif->rx_chan); - dp = ctp->cur_ptr; - while (dp->dscr_cmd0 & DSCR_CMD0_V) - ; - ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); -#else - while (count--) - { - *(u16 *)addr = au_readw(port); - addr +=2 ; - } -#endif -} - -void auide_insl(unsigned long port, void *addr, u32 count) -{ - while (count--) - { - *(u32 *)addr = au_readl(port); - /* NOTE: For IDE interfaces over PCMCIA, - * 32-bit access does not work - */ - addr += 4; - } -} - -void auide_outb(u8 addr, unsigned long port) +void auide_insw(unsigned long port, void *addr, u32 count) { - return (au_writeb(addr, port)); -} + _auide_hwif *ahwif = &auide_hwif; + chan_tab_t *ctp; + au1x_ddma_desc_t *dp; -void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port) -{ - return (au_writeb(addr, port)); + if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1, + DDMA_FLAGS_NOIE)) { + printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); + return; + } + ctp = *((chan_tab_t **)ahwif->rx_chan); + dp = ctp->cur_ptr; + while (dp->dscr_cmd0 & DSCR_CMD0_V) + ; + ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); } -void auide_outw(u16 addr, unsigned long port) +void auide_outsw(unsigned long port, void *addr, u32 count) { - return (au_writew(addr, port)); -} + _auide_hwif *ahwif = &auide_hwif; + chan_tab_t *ctp; + au1x_ddma_desc_t *dp; -void auide_outl(u32 addr, unsigned long port) -{ - return (au_writel(addr, port)); + if(!put_source_flags(ahwif->tx_chan, (void*)addr, + count << 1, DDMA_FLAGS_NOIE)) { + printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); + return; + } + ctp = *((chan_tab_t **)ahwif->tx_chan); + dp = ctp->cur_ptr; + while (dp->dscr_cmd0 & DSCR_CMD0_V) + ; + ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); } -void auide_outsw(unsigned long port, void *addr, u32 count) -{ -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) - _auide_hwif *ahwif = &auide_hwif; - chan_tab_t *ctp; - au1x_ddma_desc_t *dp; - - if(!put_source_flags(ahwif->tx_chan, (void*)addr, - count << 1, DDMA_FLAGS_NOIE)) { - printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); - return; - } - ctp = *((chan_tab_t **)ahwif->tx_chan); - dp = ctp->cur_ptr; - while (dp->dscr_cmd0 & DSCR_CMD0_V) - ; - ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); -#else - while (count--) - { - au_writew(*(u16 *)addr, port); - addr += 2; - } #endif -} - -void auide_outsl(unsigned long port, void *addr, u32 count) -{ - while (count--) - { - au_writel(*(u32 *)addr, port); - /* NOTE: For IDE interfaces over PCMCIA, - * 32-bit access does not work - */ - addr += 4; - } -} static void auide_tune_drive(ide_drive_t *drive, byte pio) { - int mem_sttime; - int mem_stcfg; - unsigned long flags; - u8 speed; - - /* get the best pio mode for the drive */ - pio = ide_get_best_pio_mode(drive, pio, 4, NULL); - - printk("%s: setting Au1XXX IDE to PIO mode%d\n", - drive->name, pio); - - spin_lock_irqsave(&ide_tune_drive_spin_lock, flags); - - mem_sttime = 0; - mem_stcfg = au_readl(MEM_STCFG2); - - /* set pio mode! */ - switch(pio) { - case 0: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO0_TWCS - | SBC_IDE_PIO0_TCSH - | SBC_IDE_PIO0_TCSOFF - | SBC_IDE_PIO0_TWP - | SBC_IDE_PIO0_TCSW - | SBC_IDE_PIO0_TPM - | SBC_IDE_PIO0_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; - - au_writel(mem_sttime,MEM_STTIME2); - au_writel(mem_stcfg,MEM_STCFG2); - break; - - case 1: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO1_TWCS - | SBC_IDE_PIO1_TCSH - | SBC_IDE_PIO1_TCSOFF - | SBC_IDE_PIO1_TWP - | SBC_IDE_PIO1_TCSW - | SBC_IDE_PIO1_TPM - | SBC_IDE_PIO1_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; - break; - - case 2: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO2_TWCS - | SBC_IDE_PIO2_TCSH - | SBC_IDE_PIO2_TCSOFF - | SBC_IDE_PIO2_TWP - | SBC_IDE_PIO2_TCSW - | SBC_IDE_PIO2_TPM - | SBC_IDE_PIO2_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; - break; - - case 3: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO3_TWCS - | SBC_IDE_PIO3_TCSH - | SBC_IDE_PIO3_TCSOFF - | SBC_IDE_PIO3_TWP - | SBC_IDE_PIO3_TCSW - | SBC_IDE_PIO3_TPM - | SBC_IDE_PIO3_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS; - - break; - - case 4: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO4_TWCS - | SBC_IDE_PIO4_TCSH - | SBC_IDE_PIO4_TCSOFF - | SBC_IDE_PIO4_TWP - | SBC_IDE_PIO4_TCSW - | SBC_IDE_PIO4_TPM - | SBC_IDE_PIO4_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS; - break; - } - - au_writel(mem_sttime,MEM_STTIME2); - au_writel(mem_stcfg,MEM_STCFG2); - - spin_unlock_irqrestore(&ide_tune_drive_spin_lock, flags); - - speed = pio + XFER_PIO_0; - ide_config_drive_speed(drive, speed); + int mem_sttime; + int mem_stcfg; + u8 speed; + + /* get the best pio mode for the drive */ + pio = ide_get_best_pio_mode(drive, pio, 4, NULL); + + printk(KERN_INFO "%s: setting Au1XXX IDE to PIO mode%d\n", + drive->name, pio); + + mem_sttime = 0; + mem_stcfg = au_readl(MEM_STCFG2); + + /* set pio mode! */ + switch(pio) { + case 0: + mem_sttime = SBC_IDE_TIMING(PIO0); + + /* set configuration for RCS2# */ + mem_stcfg |= TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; + break; + + case 1: + mem_sttime = SBC_IDE_TIMING(PIO1); + + /* set configuration for RCS2# */ + mem_stcfg |= TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; + break; + + case 2: + mem_sttime = SBC_IDE_TIMING(PIO2); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; + break; + + case 3: + mem_sttime = SBC_IDE_TIMING(PIO3); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS; + + break; + + case 4: + mem_sttime = SBC_IDE_TIMING(PIO4); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS; + break; + } + + au_writel(mem_sttime,MEM_STTIME2); + au_writel(mem_stcfg,MEM_STCFG2); + + speed = pio + XFER_PIO_0; + ide_config_drive_speed(drive, speed); } static int auide_tune_chipset (ide_drive_t *drive, u8 speed) { - u8 mode = 0; - int mem_sttime; - int mem_stcfg; - unsigned long flags; + int mem_sttime; + int mem_stcfg; + unsigned long mode; + #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - struct hd_driveid *id = drive->id; - - /* - * Now see what the current drive is capable of, - * selecting UDMA only if the mate said it was ok. - */ - if (id && (id->capability & 1) && drive->autodma && - !__ide_dma_bad_drive(drive)) { - if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) { - if (id->dma_mword & 4) - mode = XFER_MW_DMA_2; - else if (id->dma_mword & 2) - mode = XFER_MW_DMA_1; - else if (id->dma_mword & 1) - mode = XFER_MW_DMA_0; - } - } + if (ide_use_dma(drive)) + mode = ide_dma_speed(drive, 0); #endif - spin_lock_irqsave(&ide_tune_chipset_spin_lock, flags); + mem_sttime = 0; + mem_stcfg = au_readl(MEM_STCFG2); - mem_sttime = 0; - mem_stcfg = au_readl(MEM_STCFG2); - - switch(speed) { - case XFER_PIO_4: - case XFER_PIO_3: - case XFER_PIO_2: - case XFER_PIO_1: - case XFER_PIO_0: - auide_tune_drive(drive, (speed - XFER_PIO_0)); - break; + if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) { + auide_tune_drive(drive, speed - XFER_PIO_0); + return 0; + } + + switch(speed) { #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - case XFER_MW_DMA_2: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_MDMA2_TWCS - | SBC_IDE_MDMA2_TCSH - | SBC_IDE_MDMA2_TCSOFF - | SBC_IDE_MDMA2_TWP - | SBC_IDE_MDMA2_TCSW - | SBC_IDE_MDMA2_TPM - | SBC_IDE_MDMA2_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; - - mode = XFER_MW_DMA_2; - break; - case XFER_MW_DMA_1: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_MDMA1_TWCS - | SBC_IDE_MDMA1_TCSH - | SBC_IDE_MDMA1_TCSOFF - | SBC_IDE_MDMA1_TWP - | SBC_IDE_MDMA1_TCSW - | SBC_IDE_MDMA1_TPM - | SBC_IDE_MDMA1_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; - - mode = XFER_MW_DMA_1; - break; - case XFER_MW_DMA_0: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_MDMA0_TWCS - | SBC_IDE_MDMA0_TCSH - | SBC_IDE_MDMA0_TCSOFF - | SBC_IDE_MDMA0_TWP - | SBC_IDE_MDMA0_TCSW - | SBC_IDE_MDMA0_TPM - | SBC_IDE_MDMA0_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS; - - mode = XFER_MW_DMA_0; - break; + case XFER_MW_DMA_2: + mem_sttime = SBC_IDE_TIMING(MDMA2); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; + + mode = XFER_MW_DMA_2; + break; + case XFER_MW_DMA_1: + mem_sttime = SBC_IDE_TIMING(MDMA1); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; + + mode = XFER_MW_DMA_1; + break; + case XFER_MW_DMA_0: + mem_sttime = SBC_IDE_TIMING(MDMA0); + + /* set configuration for RCS2# */ + mem_stcfg |= TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS; + + mode = XFER_MW_DMA_0; + break; #endif - default: - return 1; - } - - /* - * Tell the drive to switch to the new mode; abort on failure. - */ - if (!mode || ide_config_drive_speed(drive, mode)) - { - return 1; /* failure */ - } - - - au_writel(mem_sttime,MEM_STTIME2); - au_writel(mem_stcfg,MEM_STCFG2); + default: + return 1; + } + + if (ide_config_drive_speed(drive, mode)) + return 1; - spin_unlock_irqrestore(&ide_tune_chipset_spin_lock, flags); + au_writel(mem_sttime,MEM_STTIME2); + au_writel(mem_stcfg,MEM_STCFG2); - return 0; + return 0; } /* * Multi-Word DMA + DbDMA functions */ -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA -static int in_drive_list(struct hd_driveid *id, - const struct drive_list_entry *drive_table) -{ - for ( ; drive_table->id_model ; drive_table++){ - if ((!strcmp(drive_table->id_model, id->model)) && - ((strstr(drive_table->id_firmware, id->fw_rev)) || - (!strcmp(drive_table->id_firmware, "ALL"))) - ) - return 1; - } - return 0; -} +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA static int auide_build_sglist(ide_drive_t *drive, struct request *rq) { - ide_hwif_t *hwif = drive->hwif; - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; - struct scatterlist *sg = hwif->sg_table; + ide_hwif_t *hwif = drive->hwif; + _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + struct scatterlist *sg = hwif->sg_table; - ide_map_sg(drive, rq); + ide_map_sg(drive, rq); - if (rq_data_dir(rq) == READ) - hwif->sg_dma_direction = DMA_FROM_DEVICE; - else - hwif->sg_dma_direction = DMA_TO_DEVICE; + if (rq_data_dir(rq) == READ) + hwif->sg_dma_direction = DMA_FROM_DEVICE; + else + hwif->sg_dma_direction = DMA_TO_DEVICE; - return dma_map_sg(ahwif->dev, sg, hwif->sg_nents, - hwif->sg_dma_direction); + return dma_map_sg(ahwif->dev, sg, hwif->sg_nents, + hwif->sg_dma_direction); } static int auide_build_dmatable(ide_drive_t *drive) { - int i, iswrite, count = 0; - ide_hwif_t *hwif = HWIF(drive); - - struct request *rq = HWGROUP(drive)->rq; - - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; - struct scatterlist *sg; - - iswrite = (rq_data_dir(rq) == WRITE); - /* Save for interrupt context */ - ahwif->drive = drive; - - /* Build sglist */ - hwif->sg_nents = i = auide_build_sglist(drive, rq); - - if (!i) - return 0; - - /* fill the descriptors */ - sg = hwif->sg_table; - while (i && sg_dma_len(sg)) { - u32 cur_addr; - u32 cur_len; - - cur_addr = sg_dma_address(sg); - cur_len = sg_dma_len(sg); - - while (cur_len) { - u32 flags = DDMA_FLAGS_NOIE; - unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; - - if (++count >= PRD_ENTRIES) { - printk(KERN_WARNING "%s: DMA table too small\n", - drive->name); - goto use_pio_instead; - } - - /* Lets enable intr for the last descriptor only */ - if (1==i) - flags = DDMA_FLAGS_IE; - else - flags = DDMA_FLAGS_NOIE; - - if (iswrite) { - if(!put_source_flags(ahwif->tx_chan, - (void*)(page_address(sg->page) - + sg->offset), - tc, flags)) { - printk(KERN_ERR "%s failed %d\n", - __FUNCTION__, __LINE__); + int i, iswrite, count = 0; + ide_hwif_t *hwif = HWIF(drive); + + struct request *rq = HWGROUP(drive)->rq; + + _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + struct scatterlist *sg; + + iswrite = (rq_data_dir(rq) == WRITE); + /* Save for interrupt context */ + ahwif->drive = drive; + + /* Build sglist */ + hwif->sg_nents = i = auide_build_sglist(drive, rq); + + if (!i) + return 0; + + /* fill the descriptors */ + sg = hwif->sg_table; + while (i && sg_dma_len(sg)) { + u32 cur_addr; + u32 cur_len; + + cur_addr = sg_dma_address(sg); + cur_len = sg_dma_len(sg); + + while (cur_len) { + u32 flags = DDMA_FLAGS_NOIE; + unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; + + if (++count >= PRD_ENTRIES) { + printk(KERN_WARNING "%s: DMA table too small\n", + drive->name); + goto use_pio_instead; + } + + /* Lets enable intr for the last descriptor only */ + if (1==i) + flags = DDMA_FLAGS_IE; + else + flags = DDMA_FLAGS_NOIE; + + if (iswrite) { + if(!put_source_flags(ahwif->tx_chan, + (void*)(page_address(sg->page) + + sg->offset), + tc, flags)) { + printk(KERN_ERR "%s failed %d\n", + __FUNCTION__, __LINE__); } - } else + } else { - if(!put_dest_flags(ahwif->rx_chan, - (void*)(page_address(sg->page) - + sg->offset), - tc, flags)) { - printk(KERN_ERR "%s failed %d\n", - __FUNCTION__, __LINE__); + if(!put_dest_flags(ahwif->rx_chan, + (void*)(page_address(sg->page) + + sg->offset), + tc, flags)) { + printk(KERN_ERR "%s failed %d\n", + __FUNCTION__, __LINE__); } - } + } - cur_addr += tc; - cur_len -= tc; - } - sg++; - i--; - } + cur_addr += tc; + cur_len -= tc; + } + sg++; + i--; + } - if (count) - return 1; + if (count) + return 1; -use_pio_instead: - dma_unmap_sg(ahwif->dev, - hwif->sg_table, - hwif->sg_nents, - hwif->sg_dma_direction); + use_pio_instead: + dma_unmap_sg(ahwif->dev, + hwif->sg_table, + hwif->sg_nents, + hwif->sg_dma_direction); - return 0; /* revert to PIO for this request */ + return 0; /* revert to PIO for this request */ } static int auide_dma_end(ide_drive_t *drive) { - ide_hwif_t *hwif = HWIF(drive); - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + ide_hwif_t *hwif = HWIF(drive); + _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; - if (hwif->sg_nents) { - dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents, - hwif->sg_dma_direction); - hwif->sg_nents = 0; - } + if (hwif->sg_nents) { + dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents, + hwif->sg_dma_direction); + hwif->sg_nents = 0; + } - return 0; + return 0; } static void auide_dma_start(ide_drive_t *drive ) { -// printk("%s\n", __FUNCTION__); } -ide_startstop_t auide_dma_intr(ide_drive_t *drive) -{ - //printk("%s\n", __FUNCTION__); - - u8 stat = 0, dma_stat = 0; - - dma_stat = HWIF(drive)->ide_dma_end(drive); - stat = HWIF(drive)->INB(IDE_STATUS_REG); /* get drive status */ - if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) { - if (!dma_stat) { - struct request *rq = HWGROUP(drive)->rq; - - ide_end_request(drive, 1, rq->nr_sectors); - return ide_stopped; - } - printk(KERN_ERR "%s: dma_intr: bad DMA status (dma_stat=%x)\n", - drive->name, dma_stat); - } - return ide_error(drive, "dma_intr", stat); -} static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command) { - //printk("%s\n", __FUNCTION__); - - /* issue cmd to drive */ - ide_execute_command(drive, command, &auide_dma_intr, - (2*WAIT_CMD), NULL); + /* issue cmd to drive */ + ide_execute_command(drive, command, &ide_dma_intr, + (2*WAIT_CMD), NULL); } static int auide_dma_setup(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - - if (drive->media != ide_disk) - return 1; - - if (!auide_build_dmatable(drive)) - /* try PIO instead of DMA */ - return 1; +{ + struct request *rq = HWGROUP(drive)->rq; - drive->waiting_for_dma = 1; + if (!auide_build_dmatable(drive)) { + ide_map_sg(drive, rq); + return 1; + } - return 0; + drive->waiting_for_dma = 1; + return 0; } static int auide_dma_check(ide_drive_t *drive) { -// printk("%s\n", __FUNCTION__); + u8 speed; #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - if( !dbdma_init_done ){ - auide_hwif.white_list = in_drive_list(drive->id, - dma_white_list); - auide_hwif.black_list = in_drive_list(drive->id, - dma_black_list); - auide_hwif.drive = drive; -