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>

diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 24e4f31a0f365cdf4006d5c8eeeec2afd74cbc62..9a700a618b3d5f6d90b9f6cf8aab3996b3f0b85f 100644 (file)
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -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

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index e459894e19262bb8d21d38614f49ec6132bc0d91..714c71e30b7f46b1aac14127ead140d04ed87ef0 100644 (file)
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -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),

diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c
index 22428b769f9b1743145c846afcdd98ca4c07e58c..5bcb8dafc3ee506f9ff3487bdf8e01cf274e35b2 100644 (file)
--- a/drivers/s390/net/qeth_core_mpc.c
+++ b/drivers/s390/net/qeth_core_mpc.c
@@ -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;

diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index cf5ad94e960a0b86ca1d70ff7e69edabc8ba6cb3..aa8b9196b089e0c9b2788493d5103dd5b38ad33d 100644 (file)
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -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)