Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[pandora-kernel.git] / drivers / s390 / net / qeth_core_main.c
index 29f848b..85cc531 100644 (file)
@@ -302,12 +302,15 @@ static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
        int com = cmd->hdr.command;
        ipa_name = qeth_get_ipa_cmd_name(com);
        if (rc)
-               QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
-                               ipa_name, com, QETH_CARD_IFNAME(card),
-                                       rc, qeth_get_ipa_msg(rc));
+               QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
+                               "x%X \"%s\"\n",
+                               ipa_name, com, dev_name(&card->gdev->dev),
+                               QETH_CARD_IFNAME(card), rc,
+                               qeth_get_ipa_msg(rc));
        else
-               QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
-                               ipa_name, com, QETH_CARD_IFNAME(card));
+               QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
+                               ipa_name, com, dev_name(&card->gdev->dev),
+                               QETH_CARD_IFNAME(card));
 }
 
 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
@@ -988,16 +991,30 @@ static void qeth_get_channel_path_desc(struct qeth_card *card)
        chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
        if (chp_dsc != NULL) {
                /* CHPP field bit 6 == 1 -> single queue */
-               if ((chp_dsc->chpp & 0x02) == 0x02)
+               if ((chp_dsc->chpp & 0x02) == 0x02) {
+                       if ((atomic_read(&card->qdio.state) !=
+                               QETH_QDIO_UNINITIALIZED) &&
+                           (card->qdio.no_out_queues == 4))
+                               /* change from 4 to 1 outbound queues */
+                               qeth_free_qdio_buffers(card);
                        card->qdio.no_out_queues = 1;
+                       if (card->qdio.default_out_queue != 0)
+                               dev_info(&card->gdev->dev,
+                                       "Priority Queueing not supported\n");
+                       card->qdio.default_out_queue = 0;
+               } else {
+                       if ((atomic_read(&card->qdio.state) !=
+                               QETH_QDIO_UNINITIALIZED) &&
+                           (card->qdio.no_out_queues == 1)) {
+                               /* change from 1 to 4 outbound queues */
+                               qeth_free_qdio_buffers(card);
+                               card->qdio.default_out_queue = 2;
+                       }
+                       card->qdio.no_out_queues = 4;
+               }
                card->info.func_level = 0x4100 + chp_dsc->desc;
                kfree(chp_dsc);
        }
-       if (card->qdio.no_out_queues == 1) {
-               card->qdio.default_out_queue = 0;
-               dev_info(&card->gdev->dev,
-                       "Priority Queueing not supported\n");
-       }
        QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
        QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
        return;
@@ -1009,7 +1026,10 @@ static void qeth_init_qdio_info(struct qeth_card *card)
        atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
        /* inbound */
        card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
-       card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
+       if (card->info.type == QETH_CARD_TYPE_IQD)
+               card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
+       else
+               card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
        card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
        INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
        INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
@@ -1069,7 +1089,6 @@ static int qeth_setup_card(struct qeth_card *card)
        card->data.state  = CH_STATE_DOWN;
        card->state = CARD_STATE_DOWN;
        card->lan_online = 0;
-       card->use_hard_stop = 0;
        card->read_or_write_problem = 0;
        card->dev = NULL;
        spin_lock_init(&card->vlanlock);
@@ -1088,7 +1107,7 @@ static int qeth_setup_card(struct qeth_card *card)
        INIT_LIST_HEAD(card->ip_tbd_list);
        INIT_LIST_HEAD(&card->cmd_waiter_list);
        init_waitqueue_head(&card->wait_q);
-       /* intial options */
+       /* initial options */
        qeth_set_intial_options(card);
        /* IP address takeover */
        INIT_LIST_HEAD(&card->ipato.entries);
@@ -1718,20 +1737,22 @@ int qeth_send_control_data(struct qeth_card *card, int len,
                };
        }
 
+       if (reply->rc == -EIO)
+               goto error;
        rc = reply->rc;
        qeth_put_reply(reply);
        return rc;
 
 time_err:
+       reply->rc = -ETIME;
        spin_lock_irqsave(&reply->card->lock, flags);
        list_del_init(&reply->list);
        spin_unlock_irqrestore(&reply->card->lock, flags);
-       reply->rc = -ETIME;
        atomic_inc(&reply->received);
+error:
        atomic_set(&card->write.irq_pending, 0);
        qeth_release_buffer(iob->channel, iob);
        card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
-       wake_up(&reply->wait_q);
        rc = reply->rc;
        qeth_put_reply(reply);
        return rc;
@@ -1832,33 +1853,6 @@ static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
        }
 }
 
-static inline int qeth_get_max_mtu_for_card(int cardtype)
-{
-       switch (cardtype) {
-
-       case QETH_CARD_TYPE_UNKNOWN:
-       case QETH_CARD_TYPE_OSD:
-       case QETH_CARD_TYPE_OSN:
-       case QETH_CARD_TYPE_OSM:
-       case QETH_CARD_TYPE_OSX:
-               return 61440;
-       case QETH_CARD_TYPE_IQD:
-               return 57344;
-       default:
-               return 1500;
-       }
-}
-
-static inline int qeth_get_mtu_out_of_mpc(int cardtype)
-{
-       switch (cardtype) {
-       case QETH_CARD_TYPE_IQD:
-               return 1;
-       default:
-               return 0;
-       }
-}
-
 static inline int qeth_get_mtu_outof_framesize(int framesize)
 {
        switch (framesize) {
@@ -1881,10 +1875,9 @@ static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
        case QETH_CARD_TYPE_OSD:
        case QETH_CARD_TYPE_OSM:
        case QETH_CARD_TYPE_OSX:
-               return ((mtu >= 576) && (mtu <= 61440));
        case QETH_CARD_TYPE_IQD:
                return ((mtu >= 576) &&
-                       (mtu <= card->info.max_mtu + 4096 - 32));
+                       (mtu <= card->info.max_mtu));
        case QETH_CARD_TYPE_OSN:
        case QETH_CARD_TYPE_UNKNOWN:
        default:
@@ -1907,7 +1900,7 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
        memcpy(&card->token.ulp_filter_r,
               QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
               QETH_MPC_TOKEN_LENGTH);
-       if (qeth_get_mtu_out_of_mpc(card->info.type)) {
+       if (card->info.type == QETH_CARD_TYPE_IQD) {
                memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
                mtu = qeth_get_mtu_outof_framesize(framesize);
                if (!mtu) {
@@ -1915,12 +1908,21 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
                        QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
                        return 0;
                }
-               card->info.max_mtu = mtu;
+               if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
+                       /* frame size has changed */
+                       if (card->dev &&
+                           ((card->dev->mtu == card->info.initial_mtu) ||
+                            (card->dev->mtu > mtu)))
+                               card->dev->mtu = mtu;
+                       qeth_free_qdio_buffers(card);
+               }
                card->info.initial_mtu = mtu;
+               card->info.max_mtu = mtu;
                card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
        } else {
                card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
-               card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
+               card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
+                       iob->data);
                card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
        }
 
@@ -2495,45 +2497,19 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 }
 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
 
-static int qeth_send_startstoplan(struct qeth_card *card,
-               enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
-{
-       int rc;
-       struct qeth_cmd_buffer *iob;
-
-       iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
-       rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
-
-       return rc;
-}
-
 int qeth_send_startlan(struct qeth_card *card)
 {
        int rc;
+       struct qeth_cmd_buffer *iob;
 
        QETH_DBF_TEXT(SETUP, 2, "strtlan");
 
-       rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
+       iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
+       rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
        return rc;
 }
 EXPORT_SYMBOL_GPL(qeth_send_startlan);
 
-int qeth_send_stoplan(struct qeth_card *card)
-{
-       int rc = 0;
-
-       /*
-        * TODO: according to the IPA format document page 14,
-        * TCP/IP (we!) never issue a STOPLAN
-        * is this right ?!?
-        */
-       QETH_DBF_TEXT(SETUP, 2, "stoplan");
-
-       rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
-       return rc;
-}
-EXPORT_SYMBOL_GPL(qeth_send_stoplan);
-
 int qeth_default_setadapterparms_cb(struct qeth_card *card,
                struct qeth_reply *reply, unsigned long data)
 {
@@ -3775,6 +3751,47 @@ static inline int qeth_get_qdio_q_format(struct qeth_card *card)
        }
 }
 
+static void qeth_determine_capabilities(struct qeth_card *card)
+{
+       int rc;
+       int length;
+       char *prcd;
+       struct ccw_device *ddev;
+       int ddev_offline = 0;
+
+       QETH_DBF_TEXT(SETUP, 2, "detcapab");
+       ddev = CARD_DDEV(card);
+       if (!ddev->online) {
+               ddev_offline = 1;
+               rc = ccw_device_set_online(ddev);
+               if (rc) {
+                       QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
+                       goto out;
+               }
+       }
+
+       rc = qeth_read_conf_data(card, (void **) &prcd, &length);
+       if (rc) {
+               QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
+                       dev_name(&card->gdev->dev), rc);
+               QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
+               goto out_offline;
+       }
+       qeth_configure_unitaddr(card, prcd);
+       qeth_configure_blkt_default(card, prcd);
+       kfree(prcd);
+
+       rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
+       if (rc)
+               QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+
+out_offline:
+       if (ddev_offline == 1)
+               ccw_device_set_offline(ddev);
+out:
+       return;
+}
+
 static int qeth_qdio_establish(struct qeth_card *card)
 {
        struct qdio_initialize init_data;
@@ -3885,7 +3902,9 @@ static struct ccw_device_id qeth_ids[] = {
 MODULE_DEVICE_TABLE(ccw, qeth_ids);
 
 static struct ccw_driver qeth_ccw_driver = {
-       .name = "qeth",
+       .driver = {
+               .name = "qeth",
+       },
        .ids = qeth_ids,
        .probe = ccwgroup_probe_ccwdev,
        .remove = ccwgroup_remove_ccwdev,
@@ -3905,6 +3924,7 @@ int qeth_core_hardsetup_card(struct qeth_card *card)
 
        QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
        atomic_set(&card->force_alloc_skb, 0);
+       qeth_get_channel_path_desc(card);
 retry:
        if (retries)
                QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
@@ -3933,6 +3953,7 @@ retriable:
                else
                        goto retry;
        }
+       qeth_determine_capabilities(card);
        qeth_init_tokens(card);
        qeth_init_func_level(card);
        rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
@@ -4202,41 +4223,6 @@ void qeth_core_free_discipline(struct qeth_card *card)
        card->discipline.ccwgdriver = NULL;
 }
 
-static void qeth_determine_capabilities(struct qeth_card *card)
-{
-       int rc;
-       int length;
-       char *prcd;
-
-       QETH_DBF_TEXT(SETUP, 2, "detcapab");
-       rc = ccw_device_set_online(CARD_DDEV(card));
-       if (rc) {
-               QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
-               goto out;
-       }
-
-
-       rc = qeth_read_conf_data(card, (void **) &prcd, &length);
-       if (rc) {
-               QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
-                       dev_name(&card->gdev->dev), rc);
-               QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
-               goto out_offline;
-       }
-       qeth_configure_unitaddr(card, prcd);
-       qeth_configure_blkt_default(card, prcd);
-       kfree(prcd);
-
-       rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
-       if (rc)
-               QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
-
-out_offline:
-       ccw_device_set_offline(CARD_DDEV(card));
-out:
-       return;
-}
-
 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
 {
        struct qeth_card *card;
@@ -4444,8 +4430,10 @@ static int qeth_core_restore(struct ccwgroup_device *gdev)
 }
 
 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
-       .owner = THIS_MODULE,
-       .name = "qeth",
+       .driver = {
+               .owner = THIS_MODULE,
+               .name = "qeth",
+       },
        .driver_id = 0xD8C5E3C8,
        .probe = qeth_core_probe_device,
        .remove = qeth_core_remove_device,