summaryrefslogtreecommitdiff
path: root/drivers/scsi/53c700.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/53c700.c')
-rw-r--r--drivers/scsi/53c700.c332
1 files changed, 137 insertions, 195 deletions
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index a3adfb4357f5..71b7ac027f48 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1,23 +1,10 @@
-/* -*- mode: c; c-basic-offset: 8 -*- */
+// SPDX-License-Identifier: GPL-2.0-or-later
/* NCR (or Symbios) 53c700 and 53c700-66 Driver
*
* Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
**-----------------------------------------------------------------------------
**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-**
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU General Public License for more details.
-**
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
*/
@@ -128,9 +115,9 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/device.h>
+#include <linux/pgtable.h>
#include <asm/dma.h>
#include <asm/io.h>
-#include <asm/pgtable.h>
#include <asm/byteorder.h>
#include <scsi/scsi.h>
@@ -168,17 +155,16 @@ MODULE_LICENSE("GPL");
STATIC int NCR_700_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *);
STATIC int NCR_700_abort(struct scsi_cmnd * SCpnt);
-STATIC int NCR_700_bus_reset(struct scsi_cmnd * SCpnt);
STATIC int NCR_700_host_reset(struct scsi_cmnd * SCpnt);
STATIC void NCR_700_chip_setup(struct Scsi_Host *host);
STATIC void NCR_700_chip_reset(struct Scsi_Host *host);
-STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt);
-STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt);
-STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt);
-static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth, int reason);
-static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth);
+STATIC int NCR_700_sdev_init(struct scsi_device *SDpnt);
+STATIC int NCR_700_sdev_configure(struct scsi_device *SDpnt,
+ struct queue_limits *lim);
+STATIC void NCR_700_sdev_destroy(struct scsi_device *SDpnt);
+static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth);
-STATIC struct device_attribute *NCR_700_dev_attrs[];
+STATIC const struct attribute_group *NCR_700_dev_groups[];
STATIC struct scsi_transport_template *NCR_700_transport_template = NULL;
@@ -283,6 +269,27 @@ NCR_700_get_SXFER(struct scsi_device *SDp)
spi_period(SDp->sdev_target));
}
+static inline dma_addr_t virt_to_dma(struct NCR_700_Host_Parameters *h, void *p)
+{
+ return h->pScript + ((uintptr_t)p - (uintptr_t)h->script);
+}
+
+static inline void dma_sync_to_dev(struct NCR_700_Host_Parameters *h,
+ void *addr, size_t size)
+{
+ if (h->noncoherent)
+ dma_sync_single_for_device(h->dev, virt_to_dma(h, addr),
+ size, DMA_BIDIRECTIONAL);
+}
+
+static inline void dma_sync_from_dev(struct NCR_700_Host_Parameters *h,
+ void *addr, size_t size)
+{
+ if (h->noncoherent)
+ dma_sync_single_for_device(h->dev, virt_to_dma(h, addr), size,
+ DMA_BIDIRECTIONAL);
+}
+
struct Scsi_Host *
NCR_700_detect(struct scsi_host_template *tpnt,
struct NCR_700_Host_Parameters *hostdata, struct device *dev)
@@ -294,13 +301,17 @@ NCR_700_detect(struct scsi_host_template *tpnt,
static int banner = 0;
int j;
- if(tpnt->sdev_attrs == NULL)
- tpnt->sdev_attrs = NCR_700_dev_attrs;
+ if (tpnt->sdev_groups == NULL)
+ tpnt->sdev_groups = NCR_700_dev_groups;
- memory = dma_alloc_noncoherent(hostdata->dev, TOTAL_MEM_SIZE,
- &pScript, GFP_KERNEL);
- if(memory == NULL) {
- printk(KERN_ERR "53c700: Failed to allocate memory for driver, detatching\n");
+ memory = dma_alloc_coherent(dev, TOTAL_MEM_SIZE, &pScript, GFP_KERNEL);
+ if (!memory) {
+ hostdata->noncoherent = 1;
+ memory = dma_alloc_noncoherent(dev, TOTAL_MEM_SIZE, &pScript,
+ DMA_BIDIRECTIONAL, GFP_KERNEL);
+ }
+ if (!memory) {
+ printk(KERN_ERR "53c700: Failed to allocate memory for driver, detaching\n");
return NULL;
}
@@ -316,17 +327,14 @@ NCR_700_detect(struct scsi_host_template *tpnt,
/* Fill in the missing routines from the host template */
tpnt->queuecommand = NCR_700_queuecommand;
tpnt->eh_abort_handler = NCR_700_abort;
- tpnt->eh_bus_reset_handler = NCR_700_bus_reset;
tpnt->eh_host_reset_handler = NCR_700_host_reset;
tpnt->can_queue = NCR_700_COMMAND_SLOTS_PER_HOST;
tpnt->sg_tablesize = NCR_700_SG_SEGMENTS;
tpnt->cmd_per_lun = NCR_700_CMD_PER_LUN;
- tpnt->use_clustering = ENABLE_CLUSTERING;
- tpnt->slave_configure = NCR_700_slave_configure;
- tpnt->slave_destroy = NCR_700_slave_destroy;
- tpnt->slave_alloc = NCR_700_slave_alloc;
+ tpnt->sdev_configure = NCR_700_sdev_configure;
+ tpnt->sdev_destroy = NCR_700_sdev_destroy;
+ tpnt->sdev_init = NCR_700_sdev_init;
tpnt->change_queue_depth = NCR_700_change_queue_depth;
- tpnt->change_queue_type = NCR_700_change_queue_type;
if(tpnt->name == NULL)
tpnt->name = "53c700";
@@ -356,11 +364,11 @@ NCR_700_detect(struct scsi_host_template *tpnt,
for (j = 0; j < PATCHES; j++)
script[LABELPATCHES[j]] = bS_to_host(pScript + SCRIPT[LABELPATCHES[j]]);
/* now patch up fixed addresses. */
- script_patch_32(hostdata->dev, script, MessageLocation,
+ script_patch_32(hostdata, script, MessageLocation,
pScript + MSGOUT_OFFSET);
- script_patch_32(hostdata->dev, script, StatusAddress,
+ script_patch_32(hostdata, script, StatusAddress,
pScript + STATUS_OFFSET);
- script_patch_32(hostdata->dev, script, ReceiveMsgAddress,
+ script_patch_32(hostdata, script, ReceiveMsgAddress,
pScript + MSGIN_OFFSET);
hostdata->script = script;
@@ -412,8 +420,13 @@ NCR_700_release(struct Scsi_Host *host)
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)host->hostdata[0];
- dma_free_noncoherent(hostdata->dev, TOTAL_MEM_SIZE,
- hostdata->script, hostdata->pScript);
+ if (hostdata->noncoherent)
+ dma_free_noncoherent(hostdata->dev, TOTAL_MEM_SIZE,
+ hostdata->script, hostdata->pScript,
+ DMA_BIDIRECTIONAL);
+ else
+ dma_free_coherent(hostdata->dev, TOTAL_MEM_SIZE,
+ hostdata->script, hostdata->pScript);
return 1;
}
@@ -592,19 +605,14 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
hostdata->cmd = NULL;
if(SCp != NULL) {
- struct NCR_700_command_slot *slot =
+ struct NCR_700_command_slot *slot =
(struct NCR_700_command_slot *)SCp->host_scribble;
-
+
dma_unmap_single(hostdata->dev, slot->pCmd,
MAX_COMMAND_SIZE, DMA_TO_DEVICE);
if (slot->flags == NCR_700_FLAG_AUTOSENSE) {
char *cmnd = NCR_700_get_sense_cmnd(SCp->device);
-#ifdef NCR_700_DEBUG
- printk(" ORIGINAL CMD %p RETURNED %d, new return is %d sense is\n",
- SCp, SCp->cmnd[7], result);
- scsi_print_sense("53c700", SCp);
-#endif
dma_unmap_single(hostdata->dev, slot->dma_handle,
SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
/* restore the old result if the request sense was
@@ -627,7 +635,7 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
SCp->host_scribble = NULL;
SCp->result = result;
- SCp->scsi_done(SCp);
+ scsi_done(SCp);
} else {
printk(KERN_ERR "53c700: SCSI DONE HAS NULL SCp\n");
}
@@ -826,8 +834,8 @@ process_extended_message(struct Scsi_Host *host,
shost_printk(KERN_WARNING, host,
"Unexpected SDTR msg\n");
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->dev, hostdata->script,
+ dma_sync_to_dev(hostdata, hostdata->msgout, 1);
+ script_patch_16(hostdata, hostdata->script,
MessageCount, 1);
/* SendMsgOut returns, so set up the return
* address */
@@ -839,9 +847,8 @@ process_extended_message(struct Scsi_Host *host,
printk(KERN_INFO "scsi%d: (%d:%d), Unsolicited WDTR after CMD, Rejecting\n",
host->host_no, pun, lun);
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->dev, hostdata->script, MessageCount,
- 1);
+ dma_sync_to_dev(hostdata, hostdata->msgout, 1);
+ script_patch_16(hostdata, hostdata->script, MessageCount, 1);
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
break;
@@ -854,9 +861,8 @@ process_extended_message(struct Scsi_Host *host,
printk("\n");
/* just reject it */
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->dev, hostdata->script, MessageCount,
- 1);
+ dma_sync_to_dev(hostdata, hostdata->msgout, 1);
+ script_patch_16(hostdata, hostdata->script, MessageCount, 1);
/* SendMsgOut returns, so set up the return
* address */
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
@@ -906,8 +912,10 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata
/* we're done negotiating */
NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION);
hostdata->tag_negotiated &= ~(1<<scmd_id(SCp));
+
SCp->device->tagged_supported = 0;
- scsi_deactivate_tcq(SCp->device, host->cmd_per_lun);
+ SCp->device->simple_tags = 0;
+ scsi_change_queue_depth(SCp->device, host->cmd_per_lun);
} else {
shost_printk(KERN_WARNING, host,
"(%d:%d) Unexpected REJECT Message %s\n",
@@ -937,9 +945,8 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata
printk("\n");
/* just reject it */
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->dev, hostdata->script, MessageCount,
- 1);
+ dma_sync_to_dev(hostdata, hostdata->msgout, 1);
+ script_patch_16(hostdata, hostdata->script, MessageCount, 1);
/* SendMsgOut returns, so set up the return
* address */
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
@@ -948,7 +955,7 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata
}
NCR_700_writel(temp, host, TEMP_REG);
/* set us up to receive another message */
- dma_cache_sync(hostdata->dev, hostdata->msgin, MSG_ARRAY_SIZE, DMA_FROM_DEVICE);
+ dma_sync_from_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE);
return resume_offset;
}
@@ -972,10 +979,10 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION)
NCR_700_set_tag_neg_state(SCp->device,
NCR_700_FINISHED_TAG_NEGOTIATION);
-
- /* check for contingent allegiance contitions */
- if(status_byte(hostdata->status[0]) == CHECK_CONDITION ||
- status_byte(hostdata->status[0]) == COMMAND_TERMINATED) {
+
+ /* check for contingent allegiance conditions */
+ if (hostdata->status[0] == SAM_STAT_CHECK_CONDITION ||
+ hostdata->status[0] == SAM_STAT_COMMAND_TERMINATED) {
struct NCR_700_command_slot *slot =
(struct NCR_700_command_slot *)SCp->host_scribble;
if(slot->flags == NCR_700_FLAG_AUTOSENSE) {
@@ -1005,7 +1012,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
DMA_TO_DEVICE);
cmnd[0] = REQUEST_SENSE;
- cmnd[1] = (SCp->device->lun & 0x7) << 5;
+ cmnd[1] = (lun & 0x7) << 5;
cmnd[2] = 0;
cmnd[3] = 0;
cmnd[4] = SCSI_SENSE_BUFFERSIZE;
@@ -1028,8 +1035,8 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
slot->SG[1].ins = bS_to_host(SCRIPT_RETURN);
slot->SG[1].pAddr = 0;
slot->resume_offset = hostdata->pScript;
- dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG[0])*2, DMA_TO_DEVICE);
- dma_cache_sync(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
+ dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG[0])*2);
+ dma_sync_from_dev(hostdata, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE);
/* queue the command for reissue */
slot->state = NCR_700_SLOT_QUEUED;
@@ -1111,7 +1118,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
BUG();
}
if(hostdata->msgin[1] == A_SIMPLE_TAG_MSG) {
- struct scsi_cmnd *SCp = scsi_find_tag(SDp, hostdata->msgin[2]);
+ struct scsi_cmnd *SCp;
+
+ SCp = scsi_host_find_tag(SDp->host, hostdata->msgin[2]);
if(unlikely(SCp == NULL)) {
printk(KERN_ERR "scsi%d: (%d:%d) no saved request for tag %d\n",
host->host_no, reselection_id, lun, hostdata->msgin[2]);
@@ -1123,7 +1132,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
"reselection is tag %d, slot %p(%d)\n",
hostdata->msgin[2], slot, slot->tag);
} else {
- struct scsi_cmnd *SCp = scsi_find_tag(SDp, SCSI_NO_TAG);
+ struct NCR_700_Device_Parameters *p = SDp->hostdata;
+ struct scsi_cmnd *SCp = p->current_cmnd;
+
if(unlikely(SCp == NULL)) {
sdev_printk(KERN_ERR, SDp,
"no saved request for untagged cmd\n");
@@ -1145,11 +1156,11 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
hostdata->cmd = slot->cmnd;
/* re-patch for this command */
- script_patch_32_abs(hostdata->dev, hostdata->script,
+ script_patch_32_abs(hostdata, hostdata->script,
CommandAddress, slot->pCmd);
- script_patch_16(hostdata->dev, hostdata->script,
+ script_patch_16(hostdata, hostdata->script,
CommandCount, slot->cmnd->cmd_len);
- script_patch_32_abs(hostdata->dev, hostdata->script,
+ script_patch_32_abs(hostdata, hostdata->script,
SGScriptStartAddress,
to32bit(&slot->pSG[0].ins));
@@ -1160,14 +1171,14 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
* should therefore always clear ACK */
NCR_700_writeb(NCR_700_get_SXFER(hostdata->cmd->device),
host, SXFER_REG);
- dma_cache_sync(hostdata->dev, hostdata->msgin,
- MSG_ARRAY_SIZE, DMA_FROM_DEVICE);
- dma_cache_sync(hostdata->dev, hostdata->msgout,
- MSG_ARRAY_SIZE, DMA_TO_DEVICE);
+ dma_sync_from_dev(hostdata, hostdata->msgin,
+ MSG_ARRAY_SIZE);
+ dma_sync_to_dev(hostdata, hostdata->msgout,
+ MSG_ARRAY_SIZE);
/* I'm just being paranoid here, the command should
* already have been flushed from the cache */
- dma_cache_sync(hostdata->dev, slot->cmnd->cmnd,
- slot->cmnd->cmd_len, DMA_TO_DEVICE);
+ dma_sync_to_dev(hostdata, slot->cmnd->cmnd,
+ slot->cmnd->cmd_len);
@@ -1230,8 +1241,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
hostdata->reselection_id = reselection_id;
/* just in case we have a stale simple tag message, clear it */
hostdata->msgin[1] = 0;
- dma_cache_sync(hostdata->dev, hostdata->msgin,
- MSG_ARRAY_SIZE, DMA_BIDIRECTIONAL);
+ dma_sync_to_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE);
if(hostdata->tag_negotiated & (1<<reselection_id)) {
resume_offset = hostdata->pScript + Ent_GetReselectionWithTag;
} else {
@@ -1345,8 +1355,7 @@ process_selection(struct Scsi_Host *host, __u32 dsp)
hostdata->cmd = NULL;
/* clear any stale simple tag message */
hostdata->msgin[1] = 0;
- dma_cache_sync(hostdata->dev, hostdata->msgin, MSG_ARRAY_SIZE,
- DMA_BIDIRECTIONAL);
+ dma_sync_to_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE);
if(id == 0xff) {
/* Selected as target, Ignore */
@@ -1396,7 +1405,8 @@ NCR_700_start_command(struct scsi_cmnd *SCp)
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
__u16 count = 1; /* for IDENTIFY message */
-
+ u8 lun = SCp->device->lun;
+
if(hostdata->state != NCR_700_HOST_FREE) {
/* keep this inside the lock to close the race window where
* the running command finishes on another CPU while we don't
@@ -1415,7 +1425,7 @@ NCR_700_start_command(struct scsi_cmnd *SCp)
hostdata->msgout[0] = NCR_700_identify((SCp->cmnd[0] != REQUEST_SENSE &&
slot->flags != NCR_700_FLAG_AUTOSENSE),
- SCp->device->lun);
+ lun);
/* for INQUIRY or REQUEST_SENSE commands, we cannot be sure
* if the negotiated transfer parameters still hold, so
* always renegotiate them */
@@ -1431,7 +1441,7 @@ NCR_700_start_command(struct scsi_cmnd *SCp)
if((hostdata->tag_negotiated & (1<<scmd_id(SCp)))
&& (slot->tag != SCSI_NO_TAG && SCp->cmnd[0] != REQUEST_SENSE &&
slot->flags != NCR_700_FLAG_AUTOSENSE)) {
- count += scsi_populate_tag_msg(SCp, &hostdata->msgout[count]);
+ count += spi_populate_tag_msg(&hostdata->msgout[count], SCp);
}
if(hostdata->fast &&
@@ -1442,30 +1452,26 @@ NCR_700_start_command(struct scsi_cmnd *SCp)
NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION);
}
- script_patch_16(hostdata->dev, hostdata->script, MessageCount, count);
-
+ script_patch_16(hostdata, hostdata->script, MessageCount, count);
- script_patch_ID(hostdata->dev, hostdata->script,
- Device_ID, 1<<scmd_id(SCp));
+ script_patch_ID(hostdata, hostdata->script, Device_ID, 1<<scmd_id(SCp));
- script_patch_32_abs(hostdata->dev, hostdata->script, CommandAddress,
+ script_patch_32_abs(hostdata, hostdata->script, CommandAddress,
slot->pCmd);
- script_patch_16(hostdata->dev, hostdata->script, CommandCount,
- SCp->cmd_len);
+ script_patch_16(hostdata, hostdata->script, CommandCount, SCp->cmd_len);
/* finally plumb the beginning of the SG list into the script
* */
- script_patch_32_abs(hostdata->dev, hostdata->script,
+ script_patch_32_abs(hostdata, hostdata->script,
SGScriptStartAddress, to32bit(&slot->pSG[0].ins));
NCR_700_clear_fifo(SCp->device->host);
if(slot->resume_offset == 0)
slot->resume_offset = hostdata->pScript;
/* now perform all the writebacks and invalidates */
- dma_cache_sync(hostdata->dev, hostdata->msgout, count, DMA_TO_DEVICE);
- dma_cache_sync(hostdata->dev, hostdata->msgin, MSG_ARRAY_SIZE,
- DMA_FROM_DEVICE);
- dma_cache_sync(hostdata->dev, SCp->cmnd, SCp->cmd_len, DMA_TO_DEVICE);
- dma_cache_sync(hostdata->dev, hostdata->status, 1, DMA_FROM_DEVICE);
+ dma_sync_to_dev(hostdata, hostdata->msgout, count);
+ dma_sync_from_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE);
+ dma_sync_to_dev(hostdata, SCp->cmnd, SCp->cmd_len);
+ dma_sync_from_dev(hostdata, hostdata->status, 1);
/* set the synchronous period/offset */
NCR_700_writeb(NCR_700_get_SXFER(SCp->device),
@@ -1500,11 +1506,8 @@ NCR_700_intr(int irq, void *dev_id)
__u8 sstat0 = 0, dstat = 0;
__u32 dsp;
struct scsi_cmnd *SCp = hostdata->cmd;
- enum NCR_700_Host_State state;
handled = 1;
- state = hostdata->state;
- SCp = hostdata->cmd;
if(istat & SCSI_INT_PENDING) {
udelay(10);
@@ -1568,7 +1571,7 @@ NCR_700_intr(int irq, void *dev_id)
* deadlock on the
* hostdata->state_lock */
SCp->result = DID_RESET << 16;
- SCp->scsi_done(SCp);
+ scsi_done(SCp);
}
mdelay(25);
NCR_700_chip_setup(host);
@@ -1596,7 +1599,7 @@ NCR_700_intr(int irq, void *dev_id)
printk("scsi%d (%d:%d) PHASE MISMATCH IN SEND MESSAGE %d remain, return %p[%04x], phase %s\n", host->host_no, pun, lun, count, (void *)temp, temp - hostdata->pScript, sbcl_to_string(NCR_700_readb(host, SBCL_REG)));
#endif
resume_offset = hostdata->pScript + Ent_SendMessagePhaseMismatch;
- } else if(dsp >= to32bit(&slot->pSG[0].ins) &&
+ } else if (slot && dsp >= to32bit(&slot->pSG[0].ins) &&
dsp <= to32bit(&slot->pSG[NCR_700_SG_SEGMENTS].ins)) {
int data_transfer = NCR_700_readl(host, DBC_REG) & 0xffffff;
int SGcount = (dsp - to32bit(&slot->pSG[0].ins))/sizeof(struct NCR_700_SG_List);
@@ -1641,7 +1644,7 @@ NCR_700_intr(int irq, void *dev_id)
slot->SG[i].ins = bS_to_host(SCRIPT_NOP);
slot->SG[i].pAddr = 0;
}
- dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG), DMA_TO_DEVICE);
+ dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG));
/* and pretend we disconnected after
* the command phase */
resume_offset = hostdata->pScript + Ent_MsgInDuringData;
@@ -1748,13 +1751,11 @@ NCR_700_intr(int irq, void *dev_id)
return IRQ_RETVAL(handled);
}
-static int
-NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
+static int NCR_700_queuecommand_lck(struct scsi_cmnd *SCp)
{
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
__u32 move_ins;
- enum dma_data_direction direction;
struct NCR_700_command_slot *slot;
if(hostdata->command_slot_count >= NCR_700_COMMAND_SLOTS_PER_HOST) {
@@ -1771,7 +1772,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
*/
if(NCR_700_get_depth(SCp->device) != 0
&& (!(hostdata->tag_negotiated & (1<<scmd_id(SCp)))
- || !blk_rq_tagged(SCp->request))) {
+ || !(SCp->flags & SCMD_TAGGED))) {
CDEBUG(KERN_ERR, SCp, "has non zero depth %d\n",
NCR_700_get_depth(SCp->device));
return SCSI_MLQUEUE_DEVICE_BUSY;
@@ -1790,16 +1791,13 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
slot->cmnd = SCp;
- SCp->scsi_done = done;
SCp->host_scribble = (unsigned char *)slot;
- SCp->SCp.ptr = NULL;
- SCp->SCp.buffer = NULL;
#ifdef NCR_700_DEBUG
printk("53c700: scsi%d, command ", SCp->device->host->host_no);
scsi_print_command(SCp);
#endif
- if(blk_rq_tagged(SCp->request)
+ if ((SCp->flags & SCMD_TAGGED)
&& (hostdata->tag_negotiated &(1<<scmd_id(SCp))) == 0
&& NCR_700_get_tag_neg_state(SCp->device) == NCR_700_START_TAG_NEGOTIATION) {
scmd_printk(KERN_ERR, SCp, "Enabling Tag Command Queuing\n");
@@ -1813,21 +1811,23 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
*
* FIXME: This will royally screw up on multiple LUN devices
* */
- if(!blk_rq_tagged(SCp->request)
+ if (!(SCp->flags & SCMD_TAGGED)
&& (hostdata->tag_negotiated &(1<<scmd_id(SCp)))) {
scmd_printk(KERN_INFO, SCp, "Disabling Tag Command Queuing\n");
hostdata->tag_negotiated &= ~(1<<scmd_id(SCp));
}
- if((hostdata->tag_negotiated &(1<<scmd_id(SCp)))
- && scsi_get_tag_type(SCp->device)) {
- slot->tag = SCp->request->tag;
+ if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
+ SCp->device->simple_tags) {
+ slot->tag = scsi_cmd_to_rq(SCp)->tag;
CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
slot->tag, slot);
} else {
+ struct NCR_700_Device_Parameters *p = SCp->device->hostdata;
+
slot->tag = SCSI_NO_TAG;
- /* must populate current_cmnd for scsi_find_tag to work */
- SCp->device->current_cmnd = SCp;
+ /* save current command for reselection */
+ p->current_cmnd = SCp;
}
/* sanity check: some of the commands generated by the mid-layer
* have an eccentric idea of their sc_data_direction */
@@ -1845,7 +1845,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
case REQUEST_SENSE:
/* clear the internal sense magic */
SCp->cmnd[6] = 0;
- /* fall through */
+ fallthrough;
default:
/* OK, get it from the command */
switch(SCp->sc_data_direction) {
@@ -1869,7 +1869,6 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
}
/* now build the scatter gather list */
- direction = SCp->sc_data_direction;
if(move_ins != 0) {
int i;
int sg_count;
@@ -1891,8 +1890,8 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
}
slot->SG[i].ins = bS_to_host(SCRIPT_RETURN);
slot->SG[i].pAddr = 0;
- dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG), DMA_TO_DEVICE);
- DEBUG((" SETTING %08lx to %x\n",
+ dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG));
+ DEBUG((" SETTING %p to %x\n",
(&slot->pSG[i].ins),
slot->SG[i].ins));
}
@@ -1910,9 +1909,7 @@ NCR_700_abort(struct scsi_cmnd * SCp)
{
struct NCR_700_command_slot *slot;
- scmd_printk(KERN_INFO, SCp,
- "New error handler wants to abort command\n\t");
- scsi_print_command(SCp);
+ scmd_printk(KERN_INFO, SCp, "abort command\n");
slot = (struct NCR_700_command_slot *)SCp->host_scribble;
@@ -1938,14 +1935,14 @@ NCR_700_abort(struct scsi_cmnd * SCp)
}
STATIC int
-NCR_700_bus_reset(struct scsi_cmnd * SCp)
+NCR_700_host_reset(struct scsi_cmnd * SCp)
{
DECLARE_COMPLETION_ONSTACK(complete);
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
scmd_printk(KERN_INFO, SCp,
- "New error handler wants BUS reset, cmd %p\n\t", SCp);
+ "New error handler wants HOST reset, cmd %p\n\t", SCp);
scsi_print_command(SCp);
/* In theory, eh_complete should always be null because the
@@ -1960,6 +1957,7 @@ NCR_700_bus_reset(struct scsi_cmnd * SCp)
hostdata->eh_complete = &complete;
NCR_700_internal_bus_reset(SCp->device->host);
+ NCR_700_chip_reset(SCp->device->host);
spin_unlock_irq(SCp->device->host->host_lock);
wait_for_completion(&complete);
@@ -1974,22 +1972,6 @@ NCR_700_bus_reset(struct scsi_cmnd * SCp)
return SUCCESS;
}
-STATIC int
-NCR_700_host_reset(struct scsi_cmnd * SCp)
-{
- scmd_printk(KERN_INFO, SCp, "New error handler wants HOST reset\n\t");
- scsi_print_command(SCp);
-
- spin_lock_irq(SCp->device->host->host_lock);
-
- NCR_700_internal_bus_reset(SCp->device->host);
- NCR_700_chip_reset(SCp->device->host);
-
- spin_unlock_irq(SCp->device->host->host_lock);
-
- return SUCCESS;
-}
-
STATIC void
NCR_700_set_period(struct scsi_target *STp, int period)
{
@@ -2036,7 +2018,7 @@ NCR_700_set_offset(struct scsi_target *STp, int offset)
}
STATIC int
-NCR_700_slave_alloc(struct scsi_device *SDp)
+NCR_700_sdev_init(struct scsi_device *SDp)
{
SDp->hostdata = kzalloc(sizeof(struct NCR_700_Device_Parameters),
GFP_KERNEL);
@@ -2048,20 +2030,17 @@ NCR_700_slave_alloc(struct scsi_device *SDp)
}
STATIC int
-NCR_700_slave_configure(struct scsi_device *SDp)
+NCR_700_sdev_configure(struct scsi_device *SDp, struct queue_limits *lim)
{
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)SDp->host->hostdata[0];
/* to do here: allocate memory; build a queue_full list */
if(SDp->tagged_supported) {
- scsi_set_tag_type(SDp, MSG_ORDERED_TAG);
- scsi_activate_tcq(SDp, NCR_700_DEFAULT_TAGS);
+ scsi_change_queue_depth(SDp, NCR_700_DEFAULT_TAGS);
NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION);
- } else {
- /* initialise to default depth */
- scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun);
}
+
if(hostdata->fast) {
/* Find the correct offset and period via domain validation */
if (!spi_initial_dv(SDp->sdev_target))
@@ -2074,57 +2053,18 @@ NCR_700_slave_configure(struct scsi_device *SDp)
}
STATIC void
-NCR_700_slave_destroy(struct scsi_device *SDp)
+NCR_700_sdev_destroy(struct scsi_device *SDp)
{
kfree(SDp->hostdata);
SDp->hostdata = NULL;
}
static int
-NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason)
+NCR_700_change_queue_depth(struct scsi_device *SDp, int depth)
{
- if (reason != SCSI_QDEPTH_DEFAULT)
- return -EOPNOTSUPP;
-
if (depth > NCR_700_MAX_TAGS)
depth = NCR_700_MAX_TAGS;
-
- scsi_adjust_queue_depth(SDp, scsi_get_tag_type(SDp), depth);
- return depth;
-}
-
-static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type)
-{
- int change_tag = ((tag_type ==0 && scsi_get_tag_type(SDp) != 0)
- || (tag_type != 0 && scsi_get_tag_type(SDp) == 0));
- struct NCR_700_Host_Parameters *hostdata =
- (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0];
-
- scsi_set_tag_type(SDp, tag_type);
-
- /* We have a global (per target) flag to track whether TCQ is
- * enabled, so we'll be turning it off for the entire target here.
- * our tag algorithm will fail if we mix tagged and untagged commands,
- * so quiesce the device before doing this */
- if (change_tag)
- scsi_target_quiesce(SDp->sdev_target);
-
- if (!tag_type) {
- /* shift back to the default unqueued number of commands
- * (the user can still raise this) */
- scsi_deactivate_tcq(SDp, SDp->host->cmd_per_lun);
- hostdata->tag_negotiated &= ~(1 << sdev_id(SDp));
- } else {
- /* Here, we cleared the negotiation flag above, so this
- * will force the driver to renegotiate */
- scsi_activate_tcq(SDp, SDp->queue_depth);
- if (change_tag)
- NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION);
- }
- if (change_tag)
- scsi_target_resume(SDp->sdev_target);
-
- return tag_type;
+ return scsi_change_queue_depth(SDp, depth);
}
static ssize_t
@@ -2132,7 +2072,7 @@ NCR_700_show_active_tags(struct device *dev, struct device_attribute *attr, char
{
struct scsi_device *SDp = to_scsi_device(dev);
- return snprintf(buf, 20, "%d\n", NCR_700_get_depth(SDp));
+ return sysfs_emit(buf, "%d\n", NCR_700_get_depth(SDp));
}
static struct device_attribute NCR_700_active_tags_attr = {
@@ -2143,11 +2083,13 @@ static struct device_attribute NCR_700_active_tags_attr = {
.show = NCR_700_show_active_tags,
};
-STATIC struct device_attribute *NCR_700_dev_attrs[] = {
- &NCR_700_active_tags_attr,
+STATIC struct attribute *NCR_700_dev_attrs[] = {
+ &NCR_700_active_tags_attr.attr,
NULL,
};
+ATTRIBUTE_GROUPS(NCR_700_dev);
+
EXPORT_SYMBOL(NCR_700_detect);
EXPORT_SYMBOL(NCR_700_release);
EXPORT_SYMBOL(NCR_700_intr);
generated by cgit (git 2.34.1) at 2025-12-25 10:54:24 +0000