From 56347a2e7287377c35c2bac2e8643bf88690425f Mon Sep 17 00:00:00 2001 From: Frank Pavlic Date: Thu, 13 Apr 2006 20:19:12 +0200 Subject: [PATCH] [PATCH] s390: remove tty support from ctc network device driver [1/2] Hi jeff, after the first shot I sent to you did not apply I resend two new patches I've made today to remove tty from ctc network driver. Please apply .... Thank you ... Frank From: Peter Tiedemann [1/2]: tty support code will be removed from the ctc network device driver. Today we have a couple of alternatives which are performing much better. The second thing is that ctc should be a network device driver only. We should not mix tty and networking here. This first patch will remove the tty code from ctcmain.c . It also removes the build entry from the Makefile as well as TTY definitions from ctcmain.h. The second patch will remove two files, ctctty.c and ctctty.h. Signed-off-by: Frank Pavlic Signed-off-by: Jeff Garzik --- drivers/s390/net/Makefile | 3 ++- drivers/s390/net/ctcmain.c | 45 ++++++++------------------------------ drivers/s390/net/ctcmain.h | 12 +++++----- 3 files changed, 16 insertions(+), 44 deletions(-) diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile index 90d4d0ef3d..6775a837d6 100644 --- a/drivers/s390/net/Makefile +++ b/drivers/s390/net/Makefile @@ -2,7 +2,7 @@ # S/390 network devices # -ctc-objs := ctcmain.o ctctty.o ctcdbug.o +ctc-objs := ctcmain.o ctcdbug.o obj-$(CONFIG_IUCV) += iucv.o obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o @@ -10,6 +10,7 @@ obj-$(CONFIG_SMSGIUCV) += smsgiucv.o obj-$(CONFIG_CTC) += ctc.o fsm.o cu3088.o obj-$(CONFIG_LCS) += lcs.o cu3088.o obj-$(CONFIG_CLAW) += claw.o cu3088.o +obj-$(CONFIG_MPC) += ctcmpc.o fsm.o cu3088.o qeth-y := qeth_main.o qeth_mpc.o qeth_sys.o qeth_eddp.o qeth-$(CONFIG_PROC_FS) += qeth_proc.o obj-$(CONFIG_QETH) += qeth.o diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c index af9f212314..e2ccaf5596 100644 --- a/drivers/s390/net/ctcmain.c +++ b/drivers/s390/net/ctcmain.c @@ -6,7 +6,7 @@ * Fixes by : Jochen Röhrig (roehrig@de.ibm.com) * Arnaldo Carvalho de Melo Peter Tiedemann (ptiedem@de.ibm.com) - * Driver Model stuff by : Cornelia Huck + * Driver Model stuff by : Cornelia Huck * * Documentation used: * - Principles of Operation (IBM doc#: SA22-7201-06) @@ -65,7 +65,6 @@ #include -#include "ctctty.h" #include "fsm.h" #include "cu3088.h" @@ -479,10 +478,7 @@ ctc_unpack_skb(struct channel *ch, struct sk_buff *pskb) skb->dev = pskb->dev; skb->protocol = pskb->protocol; pskb->ip_summed = CHECKSUM_UNNECESSARY; - if (ch->protocol == CTC_PROTO_LINUX_TTY) - ctc_tty_netif_rx(skb); - else - netif_rx_ni(skb); + netif_rx_ni(skb); /** * Successful rx; reset logflags */ @@ -557,8 +553,7 @@ ccw_unit_check(struct channel *ch, unsigned char sense) DBF_TEXT(trace, 5, __FUNCTION__); if (sense & SNS0_INTERVENTION_REQ) { if (sense & 0x01) { - if (ch->protocol != CTC_PROTO_LINUX_TTY) - ctc_pr_debug("%s: Interface disc. or Sel. reset " + ctc_pr_debug("%s: Interface disc. or Sel. reset " "(remote)\n", ch->id); fsm_event(ch->fsm, CH_EVENT_UC_RCRESET, ch); } else { @@ -2034,7 +2029,6 @@ static void dev_action_chup(fsm_instance * fi, int event, void *arg) { struct net_device *dev = (struct net_device *) arg; - struct ctc_priv *privptr = dev->priv; DBF_TEXT(trace, 3, __FUNCTION__); switch (fsm_getstate(fi)) { @@ -2049,8 +2043,6 @@ dev_action_chup(fsm_instance * fi, int event, void *arg) fsm_newstate(fi, DEV_STATE_RUNNING); ctc_pr_info("%s: connected with remote side\n", dev->name); - if (privptr->protocol == CTC_PROTO_LINUX_TTY) - ctc_tty_setcarrier(dev, 1); ctc_clear_busy(dev); } break; @@ -2059,8 +2051,6 @@ dev_action_chup(fsm_instance * fi, int event, void *arg) fsm_newstate(fi, DEV_STATE_RUNNING); ctc_pr_info("%s: connected with remote side\n", dev->name); - if (privptr->protocol == CTC_PROTO_LINUX_TTY) - ctc_tty_setcarrier(dev, 1); ctc_clear_busy(dev); } break; @@ -2086,14 +2076,10 @@ dev_action_chup(fsm_instance * fi, int event, void *arg) static void dev_action_chdown(fsm_instance * fi, int event, void *arg) { - struct net_device *dev = (struct net_device *) arg; - struct ctc_priv *privptr = dev->priv; DBF_TEXT(trace, 3, __FUNCTION__); switch (fsm_getstate(fi)) { case DEV_STATE_RUNNING: - if (privptr->protocol == CTC_PROTO_LINUX_TTY) - ctc_tty_setcarrier(dev, 0); if (event == DEV_EVENT_TXDOWN) fsm_newstate(fi, DEV_STATE_STARTWAIT_TX); else @@ -2397,8 +2383,6 @@ ctc_tx(struct sk_buff *skb, struct net_device * dev) */ if (fsm_getstate(privptr->fsm) != DEV_STATE_RUNNING) { fsm_event(privptr->fsm, DEV_EVENT_START, dev); - if (privptr->protocol == CTC_PROTO_LINUX_TTY) - return -EBUSY; dev_kfree_skb(skb); privptr->stats.tx_dropped++; privptr->stats.tx_errors++; @@ -2608,20 +2592,13 @@ ctc_netdev_unregister(struct net_device * dev) if (!dev) return; privptr = (struct ctc_priv *) dev->priv; - if (privptr->protocol != CTC_PROTO_LINUX_TTY) - unregister_netdev(dev); - else - ctc_tty_unregister_netdev(dev); + unregister_netdev(dev); } static int ctc_netdev_register(struct net_device * dev) { - struct ctc_priv *privptr = (struct ctc_priv *) dev->priv; - if (privptr->protocol != CTC_PROTO_LINUX_TTY) - return register_netdev(dev); - else - return ctc_tty_register_netdev(dev); + return register_netdev(dev); } static void @@ -2667,7 +2644,9 @@ ctc_proto_store(struct device *dev, struct device_attribute *attr, const char *b if (!priv) return -ENODEV; sscanf(buf, "%u", &value); - if ((value < 0) || (value > CTC_PROTO_MAX)) + if (!((value == CTC_PROTO_S390) || + (value == CTC_PROTO_LINUX) || + (value == CTC_PROTO_OS390))) return -EINVAL; priv->protocol = value; @@ -2897,10 +2876,7 @@ ctc_new_device(struct ccwgroup_device *cgdev) goto out; } - if (privptr->protocol == CTC_PROTO_LINUX_TTY) - strlcpy(dev->name, "ctctty%d", IFNAMSIZ); - else - strlcpy(dev->name, "ctc%d", IFNAMSIZ); + strlcpy(dev->name, "ctc%d", IFNAMSIZ); for (direction = READ; direction <= WRITE; direction++) { privptr->channel[direction] = @@ -3046,7 +3022,6 @@ ctc_exit(void) { DBF_TEXT(setup, 3, __FUNCTION__); unregister_cu3088_discipline(&ctc_group_driver); - ctc_tty_cleanup(); ctc_unregister_dbf_views(); ctc_pr_info("CTC driver unloaded\n"); } @@ -3073,10 +3048,8 @@ ctc_init(void) ctc_pr_crit("ctc_init failed with ctc_register_dbf_views rc = %d\n", ret); return ret; } - ctc_tty_init(); ret = register_cu3088_discipline(&ctc_group_driver); if (ret) { - ctc_tty_cleanup(); ctc_unregister_dbf_views(); } return ret; diff --git a/drivers/s390/net/ctcmain.h b/drivers/s390/net/ctcmain.h index d2e835c0c1..7f305d119f 100644 --- a/drivers/s390/net/ctcmain.h +++ b/drivers/s390/net/ctcmain.h @@ -35,7 +35,9 @@ #include #include -#include "ctctty.h" +#include +#include + #include "fsm.h" #include "cu3088.h" @@ -50,9 +52,7 @@ #define CTC_PROTO_S390 0 #define CTC_PROTO_LINUX 1 -#define CTC_PROTO_LINUX_TTY 2 #define CTC_PROTO_OS390 3 -#define CTC_PROTO_MAX 3 #define CTC_BUFSIZE_LIMIT 65535 #define CTC_BUFSIZE_DEFAULT 32768 @@ -257,15 +257,13 @@ static __inline__ void ctc_clear_busy(struct net_device * dev) { clear_bit(0, &(((struct ctc_priv *) dev->priv)->tbusy)); - if (((struct ctc_priv *)dev->priv)->protocol != CTC_PROTO_LINUX_TTY) - netif_wake_queue(dev); + netif_wake_queue(dev); } static __inline__ int ctc_test_and_set_busy(struct net_device * dev) { - if (((struct ctc_priv *)dev->priv)->protocol != CTC_PROTO_LINUX_TTY) - netif_stop_queue(dev); + netif_stop_queue(dev); return test_and_set_bit(0, &((struct ctc_priv *) dev->priv)->tbusy); } -- 2.39.5