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path: root/drivers/s390/block/dasd_fba.c
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Diffstat (limited to 'drivers/s390/block/dasd_fba.c')
-rw-r--r--drivers/s390/block/dasd_fba.c120
1 files changed, 41 insertions, 79 deletions
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index c06fa2b27..361e9bd75 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -25,11 +25,6 @@
#include "dasd_int.h"
#include "dasd_fba.h"
-#ifdef PRINTK_HEADER
-#undef PRINTK_HEADER
-#endif /* PRINTK_HEADER */
-#define PRINTK_HEADER "dasd(fba):"
-
#define FBA_DEFAULT_RETRIES 32
#define DASD_FBA_CCW_WRITE 0x41
@@ -83,7 +78,7 @@ define_extent(struct ccw1 * ccw, struct DE_fba_data *data, int rw,
ccw->cmd_code = DASD_FBA_CCW_DEFINE_EXTENT;
ccw->flags = 0;
ccw->count = 16;
- ccw->cda = (__u32)virt_to_phys(data);
+ ccw->cda = virt_to_dma32(data);
memset(data, 0, sizeof (struct DE_fba_data));
if (rw == WRITE)
(data->mask).perm = 0x0;
@@ -103,7 +98,7 @@ locate_record(struct ccw1 * ccw, struct LO_fba_data *data, int rw,
ccw->cmd_code = DASD_FBA_CCW_LOCATE;
ccw->flags = 0;
ccw->count = 8;
- ccw->cda = (__u32)virt_to_phys(data);
+ ccw->cda = virt_to_dma32(data);
memset(data, 0, sizeof (struct LO_fba_data));
if (rw == WRITE)
data->operation.cmd = 0x5;
@@ -262,7 +257,7 @@ static void ccw_write_zero(struct ccw1 *ccw, int count)
ccw->cmd_code = DASD_FBA_CCW_WRITE;
ccw->flags |= CCW_FLAG_SLI;
ccw->count = count;
- ccw->cda = (__u32)virt_to_phys(dasd_fba_zero_page);
+ ccw->cda = virt_to_dma32(dasd_fba_zero_page);
}
/*
@@ -432,7 +427,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp_regular(
struct request *req)
{
struct dasd_fba_private *private = block->base->private;
- unsigned long *idaws;
+ dma64_t *idaws;
struct LO_fba_data *LO_data;
struct dasd_ccw_req *cqr;
struct ccw1 *ccw;
@@ -492,7 +487,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp_regular(
define_extent(ccw++, cqr->data, rq_data_dir(req),
block->bp_block, blk_rq_pos(req), blk_rq_sectors(req));
/* Build locate_record + read/write ccws. */
- idaws = (unsigned long *) (cqr->data + sizeof(struct DE_fba_data));
+ idaws = (dma64_t *)(cqr->data + sizeof(struct DE_fba_data));
LO_data = (struct LO_fba_data *) (idaws + cidaw);
/* Locate record for all blocks for smart devices. */
if (private->rdc_data.mode.bits.data_chain != 0) {
@@ -528,11 +523,11 @@ static struct dasd_ccw_req *dasd_fba_build_cp_regular(
ccw->cmd_code = cmd;
ccw->count = block->bp_block;
if (idal_is_needed(dst, blksize)) {
- ccw->cda = (__u32)virt_to_phys(idaws);
+ ccw->cda = virt_to_dma32(idaws);
ccw->flags = CCW_FLAG_IDA;
idaws = idal_create_words(idaws, dst, blksize);
} else {
- ccw->cda = (__u32)virt_to_phys(dst);
+ ccw->cda = virt_to_dma32(dst);
ccw->flags = 0;
}
ccw++;
@@ -590,9 +585,9 @@ dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req)
ccw++;
if (dst) {
if (ccw->flags & CCW_FLAG_IDA)
- cda = *((char **)phys_to_virt(ccw->cda));
+ cda = *((char **)dma32_to_virt(ccw->cda));
else
- cda = phys_to_virt(ccw->cda);
+ cda = dma32_to_virt(ccw->cda);
if (dst != cda) {
if (rq_data_dir(req) == READ)
memcpy(dst, cda, bv.bv_len);
@@ -660,30 +655,27 @@ static void
dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
struct irb *irb)
{
- char *page;
struct ccw1 *act, *end, *last;
int len, sl, sct, count;
+ struct device *dev;
+ char *page;
+
+ dev = &device->cdev->dev;
page = (char *) get_zeroed_page(GFP_ATOMIC);
if (page == NULL) {
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
- "No memory to dump sense data");
+ "No memory to dump sense data");
return;
}
- len = sprintf(page, PRINTK_HEADER
- " I/O status report for device %s:\n",
- dev_name(&device->cdev->dev));
- len += sprintf(page + len, PRINTK_HEADER
- " in req: %p CS: 0x%02X DS: 0x%02X\n", req,
- irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
- len += sprintf(page + len, PRINTK_HEADER
- " device %s: Failing CCW: %p\n",
- dev_name(&device->cdev->dev),
- (void *) (addr_t) irb->scsw.cmd.cpa);
+ len = sprintf(page, "I/O status report:\n");
+ len += sprintf(page + len, "in req: %px CS: 0x%02X DS: 0x%02X\n",
+ req, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
+ len += sprintf(page + len, "Failing CCW: %px\n",
+ (void *)(u64)dma32_to_u32(irb->scsw.cmd.cpa));
if (irb->esw.esw0.erw.cons) {
for (sl = 0; sl < 4; sl++) {
- len += sprintf(page + len, PRINTK_HEADER
- " Sense(hex) %2d-%2d:",
+ len += sprintf(page + len, "Sense(hex) %2d-%2d:",
(8 * sl), ((8 * sl) + 7));
for (sct = 0; sct < 8; sct++) {
@@ -693,47 +685,43 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
len += sprintf(page + len, "\n");
}
} else {
- len += sprintf(page + len, PRINTK_HEADER
- " SORRY - NO VALID SENSE AVAILABLE\n");
+ len += sprintf(page + len, "SORRY - NO VALID SENSE AVAILABLE\n");
}
- printk(KERN_ERR "%s", page);
+ dev_err(dev, "%s", page);
/* dump the Channel Program */
/* print first CCWs (maximum 8) */
act = req->cpaddr;
- for (last = act; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++);
+ for (last = act; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++);
end = min(act + 8, last);
- len = sprintf(page, PRINTK_HEADER " Related CP in req: %p\n", req);
+ len = sprintf(page, "Related CP in req: %px\n", req);
while (act <= end) {
- len += sprintf(page + len, PRINTK_HEADER
- " CCW %p: %08X %08X DAT:",
+ len += sprintf(page + len, "CCW %px: %08X %08X DAT:",
act, ((int *) act)[0], ((int *) act)[1]);
for (count = 0; count < 32 && count < act->count;
count += sizeof(int))
len += sprintf(page + len, " %08X",
- ((int *) (addr_t) act->cda)
+ ((int *)dma32_to_virt(act->cda))
[(count>>2)]);
len += sprintf(page + len, "\n");
act++;
}
- printk(KERN_ERR "%s", page);
-
+ dev_err(dev, "%s", page);
/* print failing CCW area */
len = 0;
- if (act < ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2) {
- act = ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2;
- len += sprintf(page + len, PRINTK_HEADER "......\n");
+ if (act < ((struct ccw1 *)dma32_to_virt(irb->scsw.cmd.cpa)) - 2) {
+ act = ((struct ccw1 *)dma32_to_virt(irb->scsw.cmd.cpa)) - 2;
+ len += sprintf(page + len, "......\n");
}
- end = min((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa + 2, last);
+ end = min((struct ccw1 *)dma32_to_virt(irb->scsw.cmd.cpa) + 2, last);
while (act <= end) {
- len += sprintf(page + len, PRINTK_HEADER
- " CCW %p: %08X %08X DAT:",
+ len += sprintf(page + len, "CCW %px: %08X %08X DAT:",
act, ((int *) act)[0], ((int *) act)[1]);
for (count = 0; count < 32 && count < act->count;
count += sizeof(int))
len += sprintf(page + len, " %08X",
- ((int *) (addr_t) act->cda)
+ ((int *)dma32_to_virt(act->cda))
[(count>>2)]);
len += sprintf(page + len, "\n");
act++;
@@ -742,54 +730,27 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
/* print last CCWs */
if (act < last - 2) {
act = last - 2;
- len += sprintf(page + len, PRINTK_HEADER "......\n");
+ len += sprintf(page + len, "......\n");
}
while (act <= last) {
- len += sprintf(page + len, PRINTK_HEADER
- " CCW %p: %08X %08X DAT:",
+ len += sprintf(page + len, "CCW %px: %08X %08X DAT:",
act, ((int *) act)[0], ((int *) act)[1]);
for (count = 0; count < 32 && count < act->count;
count += sizeof(int))
len += sprintf(page + len, " %08X",
- ((int *) (addr_t) act->cda)
+ ((int *)dma32_to_virt(act->cda))
[(count>>2)]);
len += sprintf(page + len, "\n");
act++;
}
if (len > 0)
- printk(KERN_ERR "%s", page);
+ dev_err(dev, "%s", page);
free_page((unsigned long) page);
}
-/*
- * Initialize block layer request queue.
- */
-static void dasd_fba_setup_blk_queue(struct dasd_block *block)
+static unsigned int dasd_fba_max_sectors(struct dasd_block *block)
{
- unsigned int logical_block_size = block->bp_block;
- struct request_queue *q = block->gdp->queue;
- unsigned int max_bytes, max_discard_sectors;
- int max;
-
- max = DASD_FBA_MAX_BLOCKS << block->s2b_shift;
- blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
- q->limits.max_dev_sectors = max;
- blk_queue_logical_block_size(q, logical_block_size);
- blk_queue_max_hw_sectors(q, max);
- blk_queue_max_segments(q, USHRT_MAX);
- /* With page sized segments each segment can be translated into one idaw/tidaw */
- blk_queue_max_segment_size(q, PAGE_SIZE);
- blk_queue_segment_boundary(q, PAGE_SIZE - 1);
-
- q->limits.discard_granularity = logical_block_size;
-
- /* Calculate max_discard_sectors and make it PAGE aligned */
- max_bytes = USHRT_MAX * logical_block_size;
- max_bytes = ALIGN_DOWN(max_bytes, PAGE_SIZE);
- max_discard_sectors = max_bytes / logical_block_size;
-
- blk_queue_max_discard_sectors(q, max_discard_sectors);
- blk_queue_max_write_zeroes_sectors(q, max_discard_sectors);
+ return DASD_FBA_MAX_BLOCKS << block->s2b_shift;
}
static int dasd_fba_pe_handler(struct dasd_device *device,
@@ -802,10 +763,11 @@ static struct dasd_discipline dasd_fba_discipline = {
.owner = THIS_MODULE,
.name = "FBA ",
.ebcname = "FBA ",
+ .has_discard = true,
.check_device = dasd_fba_check_characteristics,
.do_analysis = dasd_fba_do_analysis,
.pe_handler = dasd_fba_pe_handler,
- .setup_blk_queue = dasd_fba_setup_blk_queue,
+ .max_sectors = dasd_fba_max_sectors,
.fill_geometry = dasd_fba_fill_geometry,
.start_IO = dasd_start_IO,
.term_IO = dasd_term_IO,
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 04:48:40 +0000