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s390/qdio: fill SL with absolute addresses

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[ Upstream commit e9091ffd6a0aaced111b5d6ead5eaab5cd7101bc ]

As the comment says, sl->sbal holds an absolute address. qeth currently
solves this through wild casting, while zfcp doesn't care.

Handle this properly in the code that actually builds the SL.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com> [for qdio]
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Julian Wiedmann 2020-02-10 10:48:11 +01:00 committed by Greg Kroah-Hartman
parent d71f8bd18c
commit 9623c8ae73
3 changed files with 14 additions and 14 deletions
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2
arch/s390/include/asm/qdio.h
View file

@ -228,7 +228,7 @@ struct qdio_buffer {
* @sbal: absolute SBAL address
*/
struct sl_element {
unsigned long sbal;
u64 sbal;
} __attribute__ ((packed));
/**

3
drivers/s390/cio/qdio_setup.c
View file

@ -8,6 +8,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/io.h>
#include <asm/qdio.h>
#include "cio.h"
@ -208,7 +209,7 @@ static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
/* fill in sl */
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
q->sl->element[j].sbal = (unsigned long)q->sbal[j];
q->sl->element[j].sbal = virt_to_phys(q->sbal[j]);
}
static void setup_queues(struct qdio_irq *irq_ptr,

23
drivers/s390/net/qeth_core_main.c
View file

@ -4929,10 +4929,10 @@ static void qeth_qdio_establish_cq(struct qeth_card *card,
if (card->options.cq == QETH_CQ_ENABLED) {
int offset = QDIO_MAX_BUFFERS_PER_Q *
(card->qdio.no_in_queues - 1);
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
virt_to_phys(card->qdio.c_q->bufs[i].buffer);
}
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; i++)
in_sbal_ptrs[offset + i] =
card->qdio.c_q->bufs[i].buffer;
queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
}
@ -4967,10 +4967,9 @@ static int qeth_qdio_establish(struct qeth_card *card)
rc = -ENOMEM;
goto out_free_qib_param;
}
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
in_sbal_ptrs[i] = (struct qdio_buffer *)
virt_to_phys(card->qdio.in_q->bufs[i].buffer);
}
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; i++)
in_sbal_ptrs[i] = card->qdio.in_q->bufs[i].buffer;
queue_start_poll = kcalloc(card->qdio.no_in_queues, sizeof(void *),
GFP_KERNEL);
@ -4991,11 +4990,11 @@ static int qeth_qdio_establish(struct qeth_card *card)
rc = -ENOMEM;
goto out_free_queue_start_poll;
}
for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
card->qdio.out_qs[i]->bufs[j]->buffer);
}
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++, k++)
out_sbal_ptrs[k] =
card->qdio.out_qs[i]->bufs[j]->buffer;
memset(&init_data, 0, sizeof(struct qdio_initialize));
init_data.cdev = CARD_DDEV(card);