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path: root/drivers/scsi/tmscsim.c
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Diffstat (limited to 'drivers/scsi/tmscsim.c')
-rw-r--r--drivers/scsi/tmscsim.c421
1 files changed, 168 insertions, 253 deletions
diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c
index 91322aff241..b006cf789ba 100644
--- a/drivers/scsi/tmscsim.c
+++ b/drivers/scsi/tmscsim.c
@@ -218,11 +218,9 @@
#endif
#define DCBDEBUG1(x) C_NOP
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/signal.h>
-#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
@@ -235,6 +233,7 @@
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/spinlock.h>
+#include <linux/slab.h>
#include <asm/io.h>
#include <scsi/scsi.h>
@@ -280,6 +279,10 @@ static void dc390_ResetDevParam(struct dc390_acb* pACB);
static u32 dc390_laststatus = 0;
static u8 dc390_adapterCnt = 0;
+static int disable_clustering;
+module_param(disable_clustering, int, S_IRUGO);
+MODULE_PARM_DESC(disable_clustering, "If you experience problems with your devices, try setting to 1");
+
/* Startup values, to be overriden on the commandline */
static int tmscsim[] = {-2, -2, -2, -2, -2, -2};
@@ -349,6 +352,27 @@ static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20};
* (DCBs, SRBs, Queueing)
*
**********************************************************************/
+static void inline dc390_start_segment(struct dc390_srb* pSRB)
+{
+ struct scatterlist *psgl = pSRB->pSegmentList;
+
+ /* start new sg segment */
+ pSRB->SGBusAddr = sg_dma_address(psgl);
+ pSRB->SGToBeXferLen = sg_dma_len(psgl);
+}
+
+static unsigned long inline dc390_advance_segment(struct dc390_srb* pSRB, u32 residue)
+{
+ unsigned long xfer = pSRB->SGToBeXferLen - residue;
+
+ /* xfer more bytes transferred */
+ pSRB->SGBusAddr += xfer;
+ pSRB->TotalXferredLen += xfer;
+ pSRB->SGToBeXferLen = residue;
+
+ return xfer;
+}
+
static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun)
{
struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL;
@@ -407,10 +431,7 @@ static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_
static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length)
{
- memset(sg, 0, sizeof(struct scatterlist));
- sg->page = virt_to_page(addr);
- sg->length = length;
- sg->offset = (unsigned long)addr & ~PAGE_MASK;
+ sg_init_one(sg, addr, length);
return sg;
}
@@ -424,7 +445,7 @@ static int dc390_pci_map (struct dc390_srb* pSRB)
/* Map sense buffer */
if (pSRB->SRBFlag & AUTO_REQSENSE) {
- pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, sizeof(pcmd->sense_buffer));
+ pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
DMA_FROM_DEVICE);
cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
@@ -432,30 +453,23 @@ static int dc390_pci_map (struct dc390_srb* pSRB)
/* TODO: error handling */
if (pSRB->SGcount != 1)
error = 1;
- DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle));
+ DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __func__, pcmd->sense_buffer, cmdp->saved_dma_handle));
/* Map SG list */
- } else if (pcmd->use_sg) {
- pSRB->pSegmentList = (struct scatterlist *) pcmd->request_buffer;
- pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, pcmd->use_sg,
- pcmd->sc_data_direction);
+ } else if (scsi_sg_count(pcmd)) {
+ int nseg;
+
+ nseg = scsi_dma_map(pcmd);
+
+ pSRB->pSegmentList = scsi_sglist(pcmd);
+ pSRB->SGcount = nseg;
+
/* TODO: error handling */
- if (!pSRB->SGcount)
+ if (nseg < 0)
error = 1;
DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\
- __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg));
+ __func__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd)));
/* Map single segment */
- } else if (pcmd->request_buffer && pcmd->request_bufflen) {
- pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->request_buffer, pcmd->request_bufflen);
- pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
- pcmd->sc_data_direction);
- cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
-
- /* TODO: error handling */
- if (pSRB->SGcount != 1)
- error = 1;
- DEBUG1(printk("%s(): Mapped request buffer %p at %x\n", __FUNCTION__, pcmd->request_buffer, cmdp->saved_dma_handle));
- /* No mapping !? */
- } else
+ } else
pSRB->SGcount = 0;
return error;
@@ -470,13 +484,11 @@ static void dc390_pci_unmap (struct dc390_srb* pSRB)
if (pSRB->SRBFlag) {
pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE);
- DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
- } else if (pcmd->use_sg) {
- pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg, pcmd->sc_data_direction);
- DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", __FUNCTION__, pcmd->request_buffer, pcmd->use_sg));
- } else if (pcmd->request_buffer && pcmd->request_bufflen) {
- pci_unmap_sg(pdev, &pSRB->Segmentx, 1, pcmd->sc_data_direction);
- DEBUG1(printk("%s(): Unmapped request buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
+ DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __func__, cmdp->saved_dma_handle));
+ } else {
+ scsi_dma_unmap(pcmd);
+ DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n",
+ __func__, scsi_sglist(pcmd), scsi_sg_count(pcmd)));
}
}
@@ -509,7 +521,7 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr
pACB->SelConn++;
return 1;
}
- if (time_before (jiffies, pACB->pScsiHost->last_reset))
+ if (time_before (jiffies, pACB->last_reset))
{
DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n"));
return 1;
@@ -553,12 +565,12 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr
pDCB->TagMask |= 1 << tag[1];
pSRB->TagNumber = tag[1];
DC390_write8(ScsiFifo, tag[1]);
- DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for Cmd %li (SRB %p), block tag %02x\n", scmd->pid, pSRB, tag[1]));
+ DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for SRB %p, block tag %02x\n", pSRB, tag[1]));
cmd = SEL_W_ATN3;
} else {
/* No TagQ */
//no_tag:
- DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for Cmd %li (SRB %p), No TagQ\n", disc_allowed ? "" : "o", scmd->pid, pSRB));
+ DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for SRB %p, No TagQ\n", disc_allowed ? "" : "o", pSRB));
}
pSRB->SRBState = SRB_START_;
@@ -588,7 +600,7 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr
DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
DC390_write8 (ScsiFifo, 0);
DC390_write8 (ScsiFifo, 0);
- DC390_write8 (ScsiFifo, sizeof(scmd->sense_buffer));
+ DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE);
DC390_write8 (ScsiFifo, 0);
DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n"));
}
@@ -608,8 +620,8 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr
if (DC390_read8 (Scsi_Status) & INTERRUPT)
{
dc390_freetag (pDCB, pSRB);
- DEBUG0(printk ("DC390: Interrupt during Start SCSI (pid %li, target %02i-%02i)\n",
- scmd->pid, scmd->device->id, scmd->device->lun));
+ DEBUG0(printk ("DC390: Interrupt during Start SCSI (target %02i-%02i)\n",
+ scmd->device->id, scmd->device->lun));
pSRB->SRBState = SRB_READY;
//DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
pACB->SelLost++;
@@ -623,70 +635,6 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr
return 0;
}
-//#define DMA_INT EN_DMA_INT /*| EN_PAGE_INT*/
-#define DMA_INT 0
-
-#if DMA_INT
-/* This is similar to AM53C974.c ... */
-static u8
-dc390_dma_intr (struct dc390_acb* pACB)
-{
- struct dc390_srb* pSRB;
- u8 dstate;
- DEBUG0(u16 pstate; struct pci_dev *pdev = pACB->pdev);
-
- DEBUG0(pci_read_config_word(pdev, PCI_STATUS, &pstate));
- DEBUG0(if (pstate & (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY))\
- { printk(KERN_WARNING "DC390: PCI state = %04x!\n", pstate); \
- pci_write_config_word(pdev, PCI_STATUS, (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY));});
-
- dstate = DC390_read8 (DMA_Status);
-
- if (! pACB->pActiveDCB || ! pACB->pActiveDCB->pActiveSRB) return dstate;
- else pSRB = pACB->pActiveDCB->pActiveSRB;
-
- if (dstate & (DMA_XFER_ABORT | DMA_XFER_ERROR | POWER_DOWN | PCI_MS_ABORT))
- {
- printk (KERN_ERR "DC390: DMA error (%02x)!\n", dstate);
- return dstate;
- }
- if (dstate & DMA_XFER_DONE)
- {
- u32 residual, xferCnt; int ctr = 6000000;
- if (! (DC390_read8 (DMA_Cmd) & READ_DIRECTION))
- {
- do
- {
- DEBUG1(printk (KERN_DEBUG "DC390: read residual bytes ... \n"));
- dstate = DC390_read8 (DMA_Status);
- residual = DC390_read8 (CtcReg_Low) | DC390_read8 (CtcReg_Mid) << 8 |
- DC390_read8 (CtcReg_High) << 16;
- residual += DC390_read8 (Current_Fifo) & 0x1f;
- } while (residual && ! (dstate & SCSI_INTERRUPT) && --ctr);
- if (!ctr) printk (KERN_CRIT "DC390: dma_intr: DMA aborted unfinished: %06x bytes remain!!\n", DC390_read32 (DMA_Wk_ByteCntr));
- /* residual = ... */
- }
- else
- residual = 0;
-
- /* ??? */
-
- xferCnt = pSRB->SGToBeXferLen - residual;
- pSRB->SGBusAddr += xferCnt;
- pSRB->TotalXferredLen += xferCnt;
- pSRB->SGToBeXferLen = residual;
-# ifdef DC390_DEBUG0
- printk (KERN_INFO "DC390: DMA: residual = %i, xfer = %i\n",
- (unsigned int)residual, (unsigned int)xferCnt);
-# endif
-
- DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
- }
- dc390_laststatus &= ~0xff000000; dc390_laststatus |= dstate << 24;
- return dstate;
-}
-#endif
-
static void __inline__
dc390_InvalidCmd(struct dc390_acb* pACB)
@@ -697,18 +645,15 @@ dc390_InvalidCmd(struct dc390_acb* pACB)
static irqreturn_t __inline__
-DC390_Interrupt(int irq, void *dev_id, struct pt_regs *regs)
+DC390_Interrupt(void *dev_id)
{
- struct dc390_acb *pACB = (struct dc390_acb*)dev_id;
+ struct dc390_acb *pACB = dev_id;
struct dc390_dcb *pDCB;
struct dc390_srb *pSRB;
u8 sstatus=0;
u8 phase;
void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *);
u8 istate, istatus;
-#if DMA_INT
- u8 dstatus;
-#endif
sstatus = DC390_read8 (Scsi_Status);
if( !(sstatus & INTERRUPT) )
@@ -716,22 +661,9 @@ DC390_Interrupt(int irq, void *dev_id, struct pt_regs *regs)
DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus));
-#if DMA_INT
- spin_lock_irq(pACB->pScsiHost->host_lock);
- dstatus = dc390_dma_intr (pACB);
- spin_unlock_irq(pACB->pScsiHost->host_lock);
-
- DEBUG1(printk (KERN_DEBUG "dstatus=%02x,", dstatus));
- if (! (dstatus & SCSI_INTERRUPT))
- {
- DEBUG0(printk (KERN_WARNING "DC390 Int w/o SCSI actions (only DMA?)\n"));
- return IRQ_NONE;
- }
-#else
//DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT);
//dstatus = DC390_read8 (DMA_Status);
//DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
-#endif
spin_lock_irq(pACB->pScsiHost->host_lock);
@@ -808,22 +740,21 @@ DC390_Interrupt(int irq, void *dev_id, struct pt_regs *regs)
return IRQ_HANDLED;
}
-static irqreturn_t do_DC390_Interrupt( int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t do_DC390_Interrupt(int irq, void *dev_id)
{
irqreturn_t ret;
DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq));
/* Locking is done in DC390_Interrupt */
- ret = DC390_Interrupt(irq, dev_id, regs);
+ ret = DC390_Interrupt(dev_id);
DEBUG1(printk (".. IRQ returned\n"));
return ret;
}
static void
-dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+dc390_DataOut_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
u8 sstatus;
- struct scatterlist *psgl;
- u32 ResidCnt, xferCnt;
+ u32 ResidCnt;
u8 dstate = 0;
sstatus = *psstatus;
@@ -854,42 +785,35 @@ dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
if( pSRB->SGIndex < pSRB->SGcount )
{
pSRB->pSegmentList++;
- psgl = pSRB->pSegmentList;
- pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
- pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ dc390_start_segment(pSRB);
}
else
pSRB->SGToBeXferLen = 0;
}
else
{
- ResidCnt = (u32) DC390_read8 (Current_Fifo) & 0x1f;
- ResidCnt |= (u32) DC390_read8 (CtcReg_High) << 16;
- ResidCnt |= (u32) DC390_read8 (CtcReg_Mid) << 8;
- ResidCnt += (u32) DC390_read8 (CtcReg_Low);
-
- xferCnt = pSRB->SGToBeXferLen - ResidCnt;
- pSRB->SGBusAddr += xferCnt;
- pSRB->TotalXferredLen += xferCnt;
- pSRB->SGToBeXferLen = ResidCnt;
+ ResidCnt = ((u32) DC390_read8 (Current_Fifo) & 0x1f) +
+ (((u32) DC390_read8 (CtcReg_High) << 16) |
+ ((u32) DC390_read8 (CtcReg_Mid) << 8) |
+ (u32) DC390_read8 (CtcReg_Low));
+
+ dc390_advance_segment(pSRB, ResidCnt);
}
}
if ((*psstatus & 7) != SCSI_DATA_OUT)
{
- DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+ DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD);
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
}
}
static void
-dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+dc390_DataIn_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
u8 sstatus, residual, bval;
- struct scatterlist *psgl;
- u32 ResidCnt, i;
+ u32 ResidCnt, i;
unsigned long xferCnt;
- u8 *ptr;
sstatus = *psstatus;
@@ -920,19 +844,17 @@ dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \
+ ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \
+ ((unsigned long) DC390_read8 (CtcReg_Low)));
- DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%i,ToBeXfer=%li),", ResidCnt, pSRB->SGToBeXferLen));
+ DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%u,ToBeXfer=%lu),", ResidCnt, pSRB->SGToBeXferLen));
- DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+ DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD);
pSRB->TotalXferredLen += pSRB->SGToBeXferLen;
pSRB->SGIndex++;
if( pSRB->SGIndex < pSRB->SGcount )
{
pSRB->pSegmentList++;
- psgl = pSRB->pSegmentList;
- pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
- pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ dc390_start_segment(pSRB);
}
else
pSRB->SGToBeXferLen = 0;
@@ -971,47 +893,45 @@ din_1:
}
/* It seems a DMA Blast abort isn't that bad ... */
if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n");
- //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
- dc390_laststatus &= ~0xff000000; dc390_laststatus |= bval << 24;
+ //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD);
+ dc390_laststatus &= ~0xff000000;
+ dc390_laststatus |= bval << 24;
DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval));
- ResidCnt = (u32) DC390_read8 (CtcReg_High);
- ResidCnt <<= 8;
- ResidCnt |= (u32) DC390_read8 (CtcReg_Mid);
- ResidCnt <<= 8;
- ResidCnt |= (u32) DC390_read8 (CtcReg_Low);
-
- xferCnt = pSRB->SGToBeXferLen - ResidCnt;
- pSRB->SGBusAddr += xferCnt;
- pSRB->TotalXferredLen += xferCnt;
- pSRB->SGToBeXferLen = ResidCnt;
-
- if( residual )
- {
- static int feedback_requested;
+ ResidCnt = (((u32) DC390_read8 (CtcReg_High) << 16) |
+ ((u32) DC390_read8 (CtcReg_Mid) << 8)) |
+ (u32) DC390_read8 (CtcReg_Low);
+
+ xferCnt = dc390_advance_segment(pSRB, ResidCnt);
+
+ if (residual) {
+ size_t count = 1;
+ size_t offset = pSRB->SGBusAddr - sg_dma_address(pSRB->pSegmentList);
+ unsigned long flags;
+ u8 *ptr;
+
bval = DC390_read8 (ScsiFifo); /* get one residual byte */
- if (!feedback_requested) {
- feedback_requested = 1;
- printk(KERN_WARNING "%s: Please, contact <linux-scsi@vger.kernel.org> "
- "to help improve support for your system.\n", __FILE__);
+ local_irq_save(flags);
+ ptr = scsi_kmap_atomic_sg(pSRB->pSegmentList, pSRB->SGcount, &offset, &count);
+ if (likely(ptr)) {
+ *(ptr + offset) = bval;
+ scsi_kunmap_atomic_sg(ptr);
}
+ local_irq_restore(flags);
+ WARN_ON(!ptr);
- ptr = (u8 *) bus_to_virt( pSRB->SGBusAddr );
- *ptr = bval;
- pSRB->SGBusAddr++; xferCnt++;
- pSRB->TotalXferredLen++;
- pSRB->SGToBeXferLen--;
+ /* 1 more byte read */
+ xferCnt += dc390_advance_segment(pSRB, pSRB->SGToBeXferLen - 1);
}
- DEBUG1(printk (KERN_DEBUG "Xfered: %li, Total: %li, Remaining: %li\n", xferCnt,\
+ DEBUG1(printk (KERN_DEBUG "Xfered: %lu, Total: %lu, Remaining: %lu\n", xferCnt,\
pSRB->TotalXferredLen, pSRB->SGToBeXferLen));
-
}
}
if ((*psstatus & 7) != SCSI_DATA_IN)
{
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
- DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+ DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD);
}
}
@@ -1214,7 +1134,7 @@ dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB)
/* handle RESTORE_PTR */
-/* I presume, this command is already mapped, so, have to remap. */
+/* This doesn't look very healthy... to-be-fixed */
static void
dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
@@ -1222,8 +1142,9 @@ dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB)
struct scatterlist *psgl;
pSRB->TotalXferredLen = 0;
pSRB->SGIndex = 0;
- if (pcmd->use_sg) {
- pSRB->pSegmentList = (struct scatterlist *)pcmd->request_buffer;
+ if (scsi_sg_count(pcmd)) {
+ size_t saved;
+ pSRB->pSegmentList = scsi_sglist(pcmd);
psgl = pSRB->pSegmentList;
//dc390_pci_sync(pSRB);
@@ -1234,24 +1155,19 @@ dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB)
if( pSRB->SGIndex < pSRB->SGcount )
{
pSRB->pSegmentList++;
- psgl = pSRB->pSegmentList;
- pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
- pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+
+ dc390_start_segment(pSRB);
}
else
pSRB->SGToBeXferLen = 0;
}
- pSRB->SGToBeXferLen -= (pSRB->Saved_Ptr - pSRB->TotalXferredLen);
- pSRB->SGBusAddr += (pSRB->Saved_Ptr - pSRB->TotalXferredLen);
+
+ saved = pSRB->Saved_Ptr - pSRB->TotalXferredLen;
+ pSRB->SGToBeXferLen -= saved;
+ pSRB->SGBusAddr += saved;
printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n",
pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr);
- } else if(pcmd->request_buffer) {
- //dc390_pci_sync(pSRB);
-
- sg_dma_len(&pSRB->Segmentx) = pcmd->request_bufflen - pSRB->Saved_Ptr;
- pSRB->SGcount = 1;
- pSRB->pSegmentList = (struct scatterlist *) &pSRB->Segmentx;
} else {
pSRB->SGcount = 0;
printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n");
@@ -1363,7 +1279,6 @@ dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
static void
dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir)
{
- struct scatterlist *psgl;
unsigned long lval;
struct dc390_dcb* pDCB = pACB->pActiveDCB;
@@ -1389,12 +1304,11 @@ dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir)
if( pSRB->SGIndex < pSRB->SGcount )
{
- DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir /* | DMA_INT */);
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir);
if( !pSRB->SGToBeXferLen )
{
- psgl = pSRB->pSegmentList;
- pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
- pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ dc390_start_segment(pSRB);
+
DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment."));
}
lval = pSRB->SGToBeXferLen;
@@ -1408,12 +1322,12 @@ dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir)
DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen);
DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr);
- //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); /* | DMA_INT; */
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir);
pSRB->SRBState = SRB_DATA_XFER;
DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD);
- DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT);
+ DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir);
//DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT));
//DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status)));
//DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT));
@@ -1434,8 +1348,8 @@ dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir)
pSRB->SRBState |= SRB_XFERPAD;
DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE);
/*
- DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); // | DMA_INT;
- DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT);
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir);
+ DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir);
*/
}
}
@@ -1476,7 +1390,7 @@ dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus
DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
DC390_write8 (ScsiFifo, 0);
DC390_write8 (ScsiFifo, 0);
- DC390_write8 (ScsiFifo, sizeof(pSRB->pcmd->sense_buffer));
+ DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE);
DC390_write8 (ScsiFifo, 0);
DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n"));
}
@@ -1648,7 +1562,8 @@ dc390_Disconnect( struct dc390_acb* pACB )
if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) ||
!(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) )
{ /* Selection time out */
- pSRB->TargetStatus = SCSI_STAT_SEL_TIMEOUT;
+ pSRB->AdaptStatus = H_SEL_TIMEOUT;
+ pSRB->TargetStatus = 0;
goto disc1;
}
else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED))
@@ -1681,7 +1596,7 @@ dc390_Reselect( struct dc390_acb* pACB )
if( !( pACB->scan_devices ) )
{
struct scsi_cmnd *pcmd = pSRB->pcmd;
- pcmd->resid = pcmd->request_bufflen;
+ scsi_set_resid(pcmd, scsi_bufflen(pcmd));
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
dc390_Going_remove(pDCB, pSRB);
dc390_Free_insert(pACB, pSRB);
@@ -1764,7 +1679,6 @@ dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_
pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN));
pSRB->SRBFlag |= AUTO_REQSENSE;
- pSRB->SavedSGCount = pcmd->use_sg;
pSRB->SavedTotXLen = pSRB->TotalXferredLen;
pSRB->AdaptStatus = 0;
pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */
@@ -1791,30 +1705,28 @@ dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb*
status = pSRB->TargetStatus;
- DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p, pid %li\n", status, pcmd->result,\
- pSRB, pcmd->pid));
+ DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p\n", status, pcmd->result, pSRB));
if(pSRB->SRBFlag & AUTO_REQSENSE)
{ /* Last command was a Request Sense */
pSRB->SRBFlag &= ~AUTO_REQSENSE;
pSRB->AdaptStatus = 0;
- pSRB->TargetStatus = CHECK_CONDITION << 1;
+ pSRB->TargetStatus = SAM_STAT_CHECK_CONDITION;
//pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status);
- if (status == (CHECK_CONDITION << 1))
+ if (status == SAM_STAT_CHECK_CONDITION)
pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0);
else /* Retry */
{
if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */)
{
/* Don't retry on TEST_UNIT_READY */
- pcmd->result = MK_RES_LNX(DRIVER_SENSE,DID_OK,0,CHECK_CONDITION);
+ pcmd->result = MK_RES_LNX(DRIVER_SENSE, DID_OK, 0, SAM_STAT_CHECK_CONDITION);
REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\
(u32) pcmd->result, (u32) pSRB->TotalXferredLen));
} else {
SET_RES_DRV(pcmd->result, DRIVER_SENSE);
- pcmd->use_sg = pSRB->SavedSGCount;
//pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8);
- DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
+ DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
pSRB->TotalXferredLen = 0;
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
}
@@ -1823,7 +1735,7 @@ dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb*
}
if( status )
{
- if( status_byte(status) == CHECK_CONDITION )
+ if (status == SAM_STAT_CHECK_CONDITION)
{
if (dc390_RequestSense(pACB, pDCB, pSRB)) {
SET_RES_DID(pcmd->result, DID_ERROR);
@@ -1831,22 +1743,14 @@ dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb*
}
return;
}
- else if( status_byte(status) == QUEUE_FULL )
+ else if (status == SAM_STAT_TASK_SET_FULL)
{
scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1);
- pcmd->use_sg = pSRB->SavedSGCount;
- DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
+ DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
pSRB->TotalXferredLen = 0;
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
}
- else if(status == SCSI_STAT_SEL_TIMEOUT)
- {
- pSRB->AdaptStatus = H_SEL_TIMEOUT;
- pSRB->TargetStatus = 0;
- pcmd->result = MK_RES(0,DID_NO_CONNECT,0,0);
- /* Devices are removed below ... */
- }
- else if (status_byte(status) == BUSY &&
+ else if (status == SAM_STAT_BUSY &&
(pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) &&
pACB->scan_devices)
{
@@ -1864,12 +1768,17 @@ dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb*
else
{ /* Target status == 0 */
status = pSRB->AdaptStatus;
- if(status & H_OVER_UNDER_RUN)
+ if (status == H_OVER_UNDER_RUN)
{
pSRB->TargetStatus = 0;
SET_RES_DID(pcmd->result,DID_OK);
SET_RES_MSG(pcmd->result,pSRB->EndMessage);
}
+ else if (status == H_SEL_TIMEOUT)
+ {
+ pcmd->result = MK_RES(0, DID_NO_CONNECT, 0, 0);
+ /* Devices are removed below ... */
+ }
else if( pSRB->SRBStatus & PARITY_ERROR)
{
//pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0);
@@ -1885,13 +1794,13 @@ dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb*
}
cmd_done:
- pcmd->resid = pcmd->request_bufflen - pSRB->TotalXferredLen;
+ scsi_set_resid(pcmd, scsi_bufflen(pcmd) - pSRB->TotalXferredLen);
dc390_Going_remove (pDCB, pSRB);
/* Add to free list */
dc390_Free_insert (pACB, pSRB);
- DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done pid %li\n", pcmd->pid));
+ DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done\n"));
pcmd->scsi_done (pcmd);
return;
@@ -1954,7 +1863,7 @@ dc390_ScsiRstDetect( struct dc390_acb* pACB )
/* delay half a second */
udelay (1000);
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
- pACB->pScsiHost->last_reset = jiffies + 5*HZ/2
+ pACB->last_reset = jiffies + 5*HZ/2
+ HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
pACB->Connected = 0;
@@ -1973,7 +1882,7 @@ dc390_ScsiRstDetect( struct dc390_acb* pACB )
return;
}
-static int DC390_queuecommand(struct scsi_cmnd *cmd,
+static int DC390_queuecommand_lck(struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *))
{
struct scsi_device *sdev = cmd->device;
@@ -2034,6 +1943,8 @@ static int DC390_queuecommand(struct scsi_cmnd *cmd,
return SCSI_MLQUEUE_DEVICE_BUSY;
}
+static DEF_SCSI_QCMD(DC390_queuecommand)
+
static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
struct pci_dev *pdev;
@@ -2085,8 +1996,7 @@ static int DC390_abort(struct scsi_cmnd *cmd)
struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata;
struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata;
- scmd_printk(KERN_WARNING, cmd,
- "DC390: Abort command (pid %li)\n", cmd->pid);
+ scmd_printk(KERN_WARNING, cmd, "DC390: Abort command\n");
/* abort() is too stupid for already sent commands at the moment.
* If it's called we are in trouble anyway, so let's dump some info
@@ -2094,7 +2004,7 @@ static int DC390_abort(struct scsi_cmnd *cmd)
dc390_dumpinfo(pACB, pDCB, NULL);
pDCB->DCBFlag |= ABORT_DEV_;
- printk(KERN_INFO "DC390: Aborted pid %li\n", cmd->pid);
+ printk(KERN_INFO "DC390: Aborted.\n");
return FAILED;
}
@@ -2138,9 +2048,9 @@ static int DC390_bus_reset (struct scsi_cmnd *cmd)
dc390_ResetDevParam(pACB);
mdelay(1);
- pACB->pScsiHost->last_reset = jiffies + 3*HZ/2
+ pACB->last_reset = jiffies + 3*HZ/2
+ HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
-
+
DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
DC390_read8(INT_Status); /* Reset Pending INT */
@@ -2170,10 +2080,9 @@ static int dc390_slave_alloc(struct scsi_device *scsi_device)
uint id = scsi_device->id;
uint lun = scsi_device->lun;
- pDCB = kmalloc(sizeof(struct dc390_dcb), GFP_KERNEL);
+ pDCB = kzalloc(sizeof(struct dc390_dcb), GFP_KERNEL);
if (!pDCB)
return -ENOMEM;
- memset(pDCB, 0, sizeof(struct dc390_dcb));
if (!pACB->DCBCnt++) {
pACB->pLinkDCB = pDCB;
@@ -2300,7 +2209,8 @@ static struct scsi_host_template driver_template = {
.this_id = 7,
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
- .use_clustering = DISABLE_CLUSTERING,
+ .use_clustering = ENABLE_CLUSTERING,
+ .max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */
};
/***********************************************************************
@@ -2309,7 +2219,7 @@ static struct scsi_host_template driver_template = {
*
**********************************************************************/
-static void __devinit dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd)
+static void dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd)
{
u8 carryFlag = 1, j = 0x80, bval;
int i;
@@ -2332,7 +2242,7 @@ static void __devinit dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd)
}
}
-static u16 __devinit dc390_eeprom_get_data(struct pci_dev *pdev)
+static u16 dc390_eeprom_get_data(struct pci_dev *pdev)
{
int i;
u16 wval = 0;
@@ -2354,7 +2264,7 @@ static u16 __devinit dc390_eeprom_get_data(struct pci_dev *pdev)
return wval;
}
-static void __devinit dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr)
+static void dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr)
{
u8 cmd = EEPROM_READ, i;
@@ -2372,7 +2282,7 @@ static void __devinit dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr)
}
/* Override EEprom values with explicitly set values */
-static void __devinit dc390_eeprom_override(u8 index)
+static void dc390_eeprom_override(u8 index)
{
u8 *ptr = (u8 *) dc390_eepromBuf[index], id;
@@ -2395,7 +2305,7 @@ static void __devinit dc390_eeprom_override(u8 index)
}
}
-static int __devinitdata tmscsim_def[] = {
+static int tmscsim_def[] = {
7,
0 /* 10MHz */,
PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_,
@@ -2405,7 +2315,7 @@ static int __devinitdata tmscsim_def[] = {
};
/* Copy defaults over set values where missing */
-static void __devinit dc390_fill_with_defaults (void)
+static void dc390_fill_with_defaults (void)
{
int i;
@@ -2425,7 +2335,7 @@ static void __devinit dc390_fill_with_defaults (void)
tmscsim[5] = 180;
}
-static void __devinit dc390_check_eeprom(struct pci_dev *pdev, u8 index)
+static void dc390_check_eeprom(struct pci_dev *pdev, u8 index)
{
u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120};
u8 EEbuf[128];
@@ -2462,7 +2372,7 @@ static void __devinit dc390_check_eeprom(struct pci_dev *pdev, u8 index)
}
}
-static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index)
+static void dc390_init_hw(struct dc390_acb *pACB, u8 index)
{
struct Scsi_Host *shost = pACB->pScsiHost;
u8 dstate;
@@ -2473,7 +2383,7 @@ static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index)
if (pACB->Gmode2 & RST_SCSI_BUS) {
dc390_ResetSCSIBus(pACB);
udelay(1000);
- shost->last_reset = jiffies + HZ/2 +
+ pACB->last_reset = jiffies + HZ/2 +
HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
}
@@ -2512,8 +2422,7 @@ static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index)
DC390_write8(DMA_Status, dstate);
}
-static int __devinit dc390_probe_one(struct pci_dev *pdev,
- const struct pci_device_id *id)
+static int dc390_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct dc390_acb *pACB;
struct Scsi_Host *shost;
@@ -2526,6 +2435,8 @@ static int __devinit dc390_probe_one(struct pci_dev *pdev,
pci_set_master(pdev);
error = -ENOMEM;
+ if (disable_clustering)
+ driver_template.use_clustering = DISABLE_CLUSTERING;
shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb));
if (!shost)
goto out_disable_device;
@@ -2544,8 +2455,8 @@ static int __devinit dc390_probe_one(struct pci_dev *pdev,
shost->irq = pdev->irq;
shost->base = io_port;
shost->unique_id = io_port;
- shost->last_reset = jiffies;
-
+
+ pACB->last_reset = jiffies;
pACB->pScsiHost = shost;
pACB->IOPortBase = (u16) io_port;
pACB->IRQLevel = pdev->irq;
@@ -2585,7 +2496,7 @@ static int __devinit dc390_probe_one(struct pci_dev *pdev,
/* Reset Pending INT */
DC390_read8_(INT_Status, io_port);
- if (request_irq(pdev->irq, do_DC390_Interrupt, SA_SHIRQ,
+ if (request_irq(pdev->irq, do_DC390_Interrupt, IRQF_SHARED,
"tmscsim", pACB)) {
printk(KERN_ERR "DC390: register IRQ error!\n");
goto out_release_region;
@@ -2620,7 +2531,7 @@ static int __devinit dc390_probe_one(struct pci_dev *pdev,
*
* @dev: The PCI device to remove.
*/
-static void __devexit dc390_remove_one(struct pci_dev *dev)
+static void dc390_remove_one(struct pci_dev *dev)
{
struct Scsi_Host *scsi_host = pci_get_drvdata(dev);
unsigned long iflags;
@@ -2642,7 +2553,6 @@ static void __devexit dc390_remove_one(struct pci_dev *dev)
pci_disable_device(dev);
scsi_host_put(scsi_host);
- pci_set_drvdata(dev, NULL);
}
static struct pci_device_id tmscsim_pci_tbl[] = {
@@ -2656,11 +2566,16 @@ static struct pci_driver dc390_driver = {
.name = "tmscsim",
.id_table = tmscsim_pci_tbl,
.probe = dc390_probe_one,
- .remove = __devexit_p(dc390_remove_one),
+ .remove = dc390_remove_one,
};
static int __init dc390_module_init(void)
{
+ if (!disable_clustering) {
+ printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n");
+ printk(KERN_INFO " with \"disable_clustering=1\" and report to maintainers\n");
+ }
+
if (tmscsim[0] == -1 || tmscsim[0] > 15) {
tmscsim[0] = 7;
tmscsim[1] = 4;
@@ -2671,7 +2586,7 @@ static int __init dc390_module_init(void)
printk (KERN_INFO "DC390: Using safe settings.\n");
}
- return pci_module_init(&dc390_driver);
+ return pci_register_driver(&dc390_driver);
}
static void __exit dc390_module_exit(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 17:26:16 +0000