UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

s390/qeth: use qeth_setup_ccw() to set up all CCWs 

Re-work the helper a little bit, so that it can be used for all CCWs
that qeth issues.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann 2018-08-09 14:48:00 +02:00 committed by David S. Miller
parent 750b162598
commit 45ca2fd646
4 changed files with 16 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/s390/net/qeth_core.h
View File

@ -235,6 +235,8 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
#define QETH_BUFSIZE 4096
#define CCW_CMD_WRITE 0x01
#define CCW_CMD_READ 0x02
/**
* some more defs

42
drivers/s390/net/qeth_core_main.c
View File

@ -65,7 +65,6 @@ static struct mutex qeth_mod_mutex;
static void qeth_send_control_data_cb(struct qeth_channel *,
struct qeth_cmd_buffer *);
static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
static void qeth_free_buffer_pool(struct qeth_card *);
static int qeth_qdio_establish(struct qeth_card *);
static void qeth_free_qdio_buffers(struct qeth_card *);
@ -532,6 +531,14 @@ static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
queue == card->qdio.no_in_queues - 1;
}
static void qeth_setup_ccw(struct ccw1 *ccw, u8 cmd_code, u32 len, void *data)
{
ccw->cmd_code = cmd_code;
ccw->flags = CCW_FLAG_SLI;
ccw->count = len;
ccw->cda = (__u32) __pa(data);
}
static int __qeth_issue_next_read(struct qeth_card *card)
{
struct qeth_channel *channel = &card->read;
@ -549,7 +556,7 @@ static int __qeth_issue_next_read(struct qeth_card *card)
"available\n", dev_name(&card->gdev->dev));
return -ENOMEM;
}
qeth_setup_ccw(channel, iob->data, QETH_BUFSIZE);
qeth_setup_ccw(&channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data);
QETH_CARD_TEXT(card, 6, "noirqpnd");
rc = ccw_device_start(channel->ccwdev, &channel->ccw,
(addr_t) iob, 0, 0);
@ -745,21 +752,6 @@ static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
return card;
}
static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
__u32 len)
{
struct qeth_card *card;
card = CARD_FROM_CDEV(channel->ccwdev);
QETH_CARD_TEXT(card, 4, "setupccw");
if (channel == &card->read)
memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
else
memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
channel->ccw.count = len;
channel->ccw.cda = (__u32) __pa(iob);
}
static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
{
__u8 index;
@ -1680,10 +1672,7 @@ static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
if (!rcd_buf)
return -ENOMEM;
channel->ccw.cmd_code = ciw->cmd;
channel->ccw.cda = (__u32) __pa(rcd_buf);
channel->ccw.count = ciw->count;
channel->ccw.flags = CCW_FLAG_SLI;
qeth_setup_ccw(&channel->ccw, ciw->cmd, ciw->count, rcd_buf);
channel->state = CH_STATE_RCD;
spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
@ -1857,9 +1846,7 @@ static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
if (!iob)
return -ENOMEM;
iob->callback = idx_reply_cb;
memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
channel->ccw.count = QETH_BUFSIZE;
channel->ccw.cda = (__u32) __pa(iob->data);
qeth_setup_ccw(&channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data);
wait_event(card->wait_q,
atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
@ -1908,9 +1895,8 @@ static int qeth_idx_activate_channel(struct qeth_channel *channel,
if (!iob)
return -ENOMEM;
iob->callback = idx_reply_cb;
memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
channel->ccw.count = IDX_ACTIVATE_SIZE;
channel->ccw.cda = (__u32) __pa(iob->data);
qeth_setup_ccw(&channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE,
iob->data);
if (channel == &card->write) {
memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
@ -2070,7 +2056,7 @@ out:
void qeth_prepare_control_data(struct qeth_card *card, int len,
struct qeth_cmd_buffer *iob)
{
qeth_setup_ccw(iob->channel, iob->data, len);
qeth_setup_ccw(&iob->channel->ccw, CCW_CMD_WRITE, len, iob->data);
iob->callback = qeth_release_buffer;
memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),

11
drivers/s390/net/qeth_core_mpc.c
View File

@ -146,17 +146,6 @@ unsigned char IPA_PDU_HEADER[] = {
};
EXPORT_SYMBOL_GPL(IPA_PDU_HEADER);
unsigned char WRITE_CCW[] = {
0x01, CCW_FLAG_SLI, 0, 0,
0, 0, 0, 0
};
unsigned char READ_CCW[] = {
0x02, CCW_FLAG_SLI, 0, 0,
0, 0, 0, 0
};
struct ipa_rc_msg {
enum qeth_ipa_return_codes rc;
char *msg;

4
drivers/s390/net/qeth_core_mpc.h
View File

@ -818,10 +818,6 @@ extern char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd);
/* END OF IP Assist related definitions */
/*****************************************************************************/
extern unsigned char WRITE_CCW[];
extern unsigned char READ_CCW[];
extern unsigned char CM_ENABLE[];
#define CM_ENABLE_SIZE 0x63
#define QETH_CM_ENABLE_ISSUER_RM_TOKEN(buffer) (buffer + 0x2c)