Commit 7b419e65 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 's390-net-next' 



Julian Wiedmann says:

===================
s390/net: updates 2020-10-01

Patches 1-3 enable qeth to also support the .set_channels() ethtool
callback for OSA devices. This completes support for the full range
of device types.

The other patches are just the usual mix of cleanups.
(Even one for ctcm!)
===================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 14c914fc 55067455

drivers/s390/net/ctcm_fsms.h

+0 −1
Original line number Diff line number Diff line
@@ -159,7 +159,6 @@ extern const char *ctc_ch_state_names[]; 


void ctcm_ccw_check_rc(struct channel *ch, int rc, char *msg);

void ctcm_purge_skb_queue(struct sk_buff_head *q);

void fsm_action_nop(fsm_instance *fi, int event, void *arg);



/*

 * ----- non-static actions for ctcm channel statemachine -----

drivers/s390/net/ctcm_mpc.h

+0 −1
Original line number Diff line number Diff line
@@ -228,7 +228,6 @@ static inline void ctcmpc_dump32(char *buf, int len) 
		ctcmpc_dumpit(buf, 32);

}



int ctcmpc_open(struct net_device *);

void ctcm_ccw_check_rc(struct channel *, int, char *);

void mpc_group_ready(unsigned long adev);

void mpc_channel_action(struct channel *ch, int direction, int action);

drivers/s390/net/qeth_core.h

+44 −10
Original line number Diff line number Diff line
@@ -177,8 +177,8 @@ struct qeth_vnicc_info { 
/**

 * some more defs

 */

#define QETH_TX_TIMEOUT		100 * HZ

#define QETH_RCD_TIMEOUT	60 * HZ

#define QETH_TX_TIMEOUT		(100 * HZ)

#define QETH_RCD_TIMEOUT	(60 * HZ)

#define QETH_RECLAIM_WORK_TIME	HZ

#define QETH_MAX_PORTNO		15
@@ -278,6 +278,26 @@ struct qeth_hdr { 
	} hdr;

} __attribute__ ((packed));



#define QETH_QIB_PQUE_ORDER_RR		0

#define QETH_QIB_PQUE_UNITS_SBAL	2

#define QETH_QIB_PQUE_PRIO_DEFAULT	4



struct qeth_qib_parms {

	char pcit_magic[4];

	u32 pcit_a;

	u32 pcit_b;

	u32 pcit_c;

	char blkt_magic[4];

	u32 blkt_total;

	u32 blkt_inter_packet;

	u32 blkt_inter_packet_jumbo;

	char pque_magic[4];

	u8 pque_order;

	u8 pque_units;

	u16 reserved;

	u32 pque_priority[4];

};



/*TCP Segmentation Offload header*/

struct qeth_hdr_ext_tso {

	__u16 hdr_tot_len;
@@ -481,6 +501,7 @@ struct qeth_qdio_out_q { 
	struct qdio_outbuf_state *bufstates; /* convenience pointer */

	struct qeth_out_q_stats stats;

	spinlock_t lock;

	unsigned int priority;

	u8 next_buf_to_fill;

	u8 max_elements;

	u8 queue_no;
@@ -538,7 +559,7 @@ struct qeth_qdio_info { 
	int in_buf_size;



	/* output */

	int no_out_queues;

	unsigned int no_out_queues;

	struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];

	struct qdio_outbuf_state *out_bufstates;
@@ -788,6 +809,7 @@ struct qeth_switch_info { 


struct qeth_priv {

	unsigned int rx_copybreak;

	unsigned int tx_wanted_queues;

	u32 brport_hw_features;

	u32 brport_features;

};
@@ -836,7 +858,7 @@ struct qeth_card { 
	struct qeth_qdio_info qdio;

	int read_or_write_problem;

	struct qeth_osn_info osn_info;

	struct qeth_discipline *discipline;

	const struct qeth_discipline *discipline;

	atomic_t force_alloc_skb;

	struct service_level qeth_service_level;

	struct qdio_ssqd_desc ssqd;
@@ -870,8 +892,20 @@ struct qeth_trap_id { 
	__u16 devno;

} __packed;



/*some helper functions*/

#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")

static inline bool qeth_uses_tx_prio_queueing(struct qeth_card *card)

{

	return card->qdio.do_prio_queueing != QETH_NO_PRIO_QUEUEING;

}



static inline unsigned int qeth_tx_actual_queues(struct qeth_card *card)

{

	struct qeth_priv *priv = netdev_priv(card->dev);



	if (qeth_uses_tx_prio_queueing(card))

		return min(card->dev->num_tx_queues, card->qdio.no_out_queues);



	return min(priv->tx_wanted_queues, card->qdio.no_out_queues);

}



static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)

{
@@ -1014,8 +1048,8 @@ static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 


int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);



extern struct qeth_discipline qeth_l2_discipline;

extern struct qeth_discipline qeth_l3_discipline;

extern const struct qeth_discipline qeth_l2_discipline;

extern const struct qeth_discipline qeth_l3_discipline;

extern const struct ethtool_ops qeth_ethtool_ops;

extern const struct ethtool_ops qeth_osn_ethtool_ops;

extern const struct attribute_group *qeth_generic_attr_groups[];
@@ -1035,7 +1069,8 @@ extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 


struct net_device *qeth_clone_netdev(struct net_device *orig);

struct qeth_card *qeth_get_card_by_busid(char *bus_id);

void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);

void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,

			      int clear_start_mask);

int qeth_threads_running(struct qeth_card *, unsigned long);

int qeth_set_offline(struct qeth_card *card, bool resetting);
@@ -1087,7 +1122,6 @@ void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 
int qeth_configure_cq(struct qeth_card *, enum qeth_cq);

int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);

int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);

int qeth_setup_netdev(struct qeth_card *card);

int qeth_set_features(struct net_device *, netdev_features_t);

void qeth_enable_hw_features(struct net_device *dev);

netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);

drivers/s390/net/qeth_core_main.c

+78 −85
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/errno.h>

#include <linux/kernel.h>

#include <linux/log2.h>

#include <linux/io.h>

#include <linux/ip.h>

#include <linux/tcp.h>

#include <linux/mii.h>
@@ -35,7 +36,6 @@ 


#include <asm/ebcdic.h>

#include <asm/chpid.h>

#include <asm/io.h>

#include <asm/sysinfo.h>

#include <asm/diag.h>

#include <asm/cio.h>
@@ -209,9 +209,8 @@ static void qeth_clear_working_pool_list(struct qeth_card *card) 


	QETH_CARD_TEXT(card, 5, "clwrklst");

	list_for_each_entry_safe(pool_entry, tmp,

			    &card->qdio.in_buf_pool.entry_list, list){

				 &card->qdio.in_buf_pool.entry_list, list)

		list_del(&pool_entry->list);

	}



	for (i = 0; i < ARRAY_SIZE(queue->bufs); i++)

		queue->bufs[i].pool_entry = NULL;
@@ -481,6 +480,7 @@ static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx, 
			    atomic_read(&c->state) ==

			      QETH_QDIO_BUF_HANDLED_DELAYED) {

				struct qeth_qdio_out_buffer *f = c;



				QETH_CARD_TEXT(f->q->card, 5, "fp");

				QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);

				/* release here to avoid interleaving between
@@ -507,7 +507,6 @@ static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx, 
	}

}





static void qeth_qdio_handle_aob(struct qeth_card *card,

				 unsigned long phys_aob_addr)

{
@@ -884,6 +883,7 @@ static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, 
{

	const char *ipa_name;

	int com = cmd->hdr.command;



	ipa_name = qeth_get_ipa_cmd_name(com);



	if (rc)
@@ -915,12 +915,12 @@ static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, 
		if (cmd->hdr.return_code == IPA_RC_VEPA_TO_VEB_TRANSITION) {

			dev_err(&card->gdev->dev,

				"Interface %s is down because the adjacent port is no longer in reflective relay mode\n",

				QETH_CARD_IFNAME(card));

				netdev_name(card->dev));

			schedule_work(&card->close_dev_work);

		} else {

			dev_warn(&card->gdev->dev,

				 "The link for interface %s on CHPID 0x%X failed\n",

				 QETH_CARD_IFNAME(card), card->info.chpid);

				 netdev_name(card->dev), card->info.chpid);

			qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card);

			netif_carrier_off(card->dev);

		}
@@ -928,7 +928,7 @@ static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, 
	case IPA_CMD_STARTLAN:

		dev_info(&card->gdev->dev,

			 "The link for %s on CHPID 0x%X has been restored\n",

			 QETH_CARD_IFNAME(card), card->info.chpid);

			 netdev_name(card->dev), card->info.chpid);

		if (card->info.hwtrap)

			card->info.hwtrap = 2;

		qeth_schedule_recovery(card);
@@ -1511,23 +1511,12 @@ static void qeth_drain_output_queues(struct qeth_card *card) 
	}

}



static int qeth_osa_set_output_queues(struct qeth_card *card, bool single)

static void qeth_osa_set_output_queues(struct qeth_card *card, bool single)

{

	unsigned int max = single ? 1 : card->dev->num_tx_queues;

	unsigned int count;

	int rc;



	count = IS_VM_NIC(card) ? min(max, card->dev->real_num_tx_queues) : max;



	rtnl_lock();

	rc = netif_set_real_num_tx_queues(card->dev, count);

	rtnl_unlock();



	if (rc)

		return rc;



	if (card->qdio.no_out_queues == max)

		return 0;

		return;



	if (atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED)

		qeth_free_qdio_queues(card);
@@ -1536,14 +1525,12 @@ static int qeth_osa_set_output_queues(struct qeth_card *card, bool single) 
		dev_info(&card->gdev->dev, "Priority Queueing not supported\n");



	card->qdio.no_out_queues = max;

	return 0;

}



static int qeth_update_from_chp_desc(struct qeth_card *card)

{

	struct ccw_device *ccwdev;

	struct channel_path_desc_fmt0 *chp_dsc;

	int rc = 0;



	QETH_CARD_TEXT(card, 2, "chp_desc");
@@ -1556,12 +1543,12 @@ static int qeth_update_from_chp_desc(struct qeth_card *card) 


	if (IS_OSD(card) || IS_OSX(card))

		/* CHPP field bit 6 == 1 -> single queue */

		rc = qeth_osa_set_output_queues(card, chp_dsc->chpp & 0x02);

		qeth_osa_set_output_queues(card, chp_dsc->chpp & 0x02);



	kfree(chp_dsc);

	QETH_CARD_TEXT_(card, 2, "nr:%x", card->qdio.no_out_queues);

	QETH_CARD_TEXT_(card, 2, "lvl:%02x", card->info.func_level);

	return rc;

	return 0;

}



static void qeth_init_qdio_info(struct qeth_card *card)
@@ -2696,6 +2683,7 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card) 
		timer_setup(&queue->timer, qeth_tx_completion_timer, 0);

		queue->coalesce_usecs = QETH_TX_COALESCE_USECS;

		queue->max_coalesced_frames = QETH_TX_MAX_COALESCED_FRAMES;

		queue->priority = QETH_QIB_PQUE_PRIO_DEFAULT;



		/* give outbound qeth_qdio_buffers their qdio_buffers */

		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
@@ -2756,30 +2744,44 @@ static void qeth_free_qdio_queues(struct qeth_card *card) 
	}

}



static void qeth_create_qib_param_field(struct qeth_card *card,

		char *param_field)

static void qeth_fill_qib_parms(struct qeth_card *card,

				struct qeth_qib_parms *parms)

{

	struct qeth_qdio_out_q *queue;

	unsigned int i;



	param_field[0] = _ascebc['P'];

	param_field[1] = _ascebc['C'];

	param_field[2] = _ascebc['I'];

	param_field[3] = _ascebc['T'];

	*((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);

	*((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);

	*((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);

}

	parms->pcit_magic[0] = 'P';

	parms->pcit_magic[1] = 'C';

	parms->pcit_magic[2] = 'I';

	parms->pcit_magic[3] = 'T';

	ASCEBC(parms->pcit_magic, sizeof(parms->pcit_magic));

	parms->pcit_a = QETH_PCI_THRESHOLD_A(card);

	parms->pcit_b = QETH_PCI_THRESHOLD_B(card);

	parms->pcit_c = QETH_PCI_TIMER_VALUE(card);



	parms->blkt_magic[0] = 'B';

	parms->blkt_magic[1] = 'L';

	parms->blkt_magic[2] = 'K';

	parms->blkt_magic[3] = 'T';

	ASCEBC(parms->blkt_magic, sizeof(parms->blkt_magic));

	parms->blkt_total = card->info.blkt.time_total;

	parms->blkt_inter_packet = card->info.blkt.inter_packet;

	parms->blkt_inter_packet_jumbo = card->info.blkt.inter_packet_jumbo;



	/* Prio-queueing implicitly uses the default priorities: */

	if (qeth_uses_tx_prio_queueing(card) || card->qdio.no_out_queues == 1)

		return;



static void qeth_create_qib_param_field_blkt(struct qeth_card *card,

		char *param_field)

{

	param_field[16] = _ascebc['B'];

	param_field[17] = _ascebc['L'];

	param_field[18] = _ascebc['K'];

	param_field[19] = _ascebc['T'];

	*((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;

	*((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;

	*((unsigned int *) (&param_field[28])) =

		card->info.blkt.inter_packet_jumbo;

	parms->pque_magic[0] = 'P';

	parms->pque_magic[1] = 'Q';

	parms->pque_magic[2] = 'U';

	parms->pque_magic[3] = 'E';

	ASCEBC(parms->pque_magic, sizeof(parms->pque_magic));

	parms->pque_order = QETH_QIB_PQUE_ORDER_RR;

	parms->pque_units = QETH_QIB_PQUE_UNITS_SBAL;



	qeth_for_each_output_queue(card, queue, i)

		parms->pque_priority[i] = queue->priority;

}



static int qeth_qdio_activate(struct qeth_card *card)
@@ -3414,7 +3416,6 @@ static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) 
		memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));

	}

	free_page(info);

	return;

}



static int qeth_hw_trap_cb(struct qeth_card *card,
@@ -4996,7 +4997,6 @@ static void qeth_determine_capabilities(struct qeth_card *card) 
		card->options.cq = QETH_CQ_NOTAVAILABLE;

	}





out_offline:

	if (ddev_offline == 1)

		qeth_stop_channel(channel);
@@ -5035,21 +5035,20 @@ static int qeth_qdio_establish(struct qeth_card *card) 
{

	struct qdio_buffer **out_sbal_ptrs[QETH_MAX_OUT_QUEUES];

	struct qdio_buffer **in_sbal_ptrs[QETH_MAX_IN_QUEUES];

	struct qeth_qib_parms *qib_parms = NULL;

	struct qdio_initialize init_data;

	char *qib_param_field;

	unsigned int i;

	int rc = 0;



	QETH_CARD_TEXT(card, 2, "qdioest");



	qib_param_field = kzalloc(sizeof_field(struct qib, parm), GFP_KERNEL);

	if (!qib_param_field) {

		rc =  -ENOMEM;

		goto out_free_nothing;

	}

	if (!IS_IQD(card) && !IS_VM_NIC(card)) {

		qib_parms = kzalloc(sizeof_field(struct qib, parm), GFP_KERNEL);

		if (!qib_parms)

			return -ENOMEM;



	qeth_create_qib_param_field(card, qib_param_field);

	qeth_create_qib_param_field_blkt(card, qib_param_field);

		qeth_fill_qib_parms(card, qib_parms);

	}



	in_sbal_ptrs[0] = card->qdio.in_q->qdio_bufs;

	if (card->options.cq == QETH_CQ_ENABLED)
@@ -5062,7 +5061,7 @@ static int qeth_qdio_establish(struct qeth_card *card) 
	init_data.q_format		 = IS_IQD(card) ? QDIO_IQDIO_QFMT :

							  QDIO_QETH_QFMT;

	init_data.qib_param_field_format = 0;

	init_data.qib_param_field        = qib_param_field;

	init_data.qib_param_field	 = (void *)qib_parms;

	init_data.no_input_qs            = card->qdio.no_in_queues;

	init_data.no_output_qs           = card->qdio.no_out_queues;

	init_data.input_handler		 = qeth_qdio_input_handler;
@@ -5099,9 +5098,9 @@ static int qeth_qdio_establish(struct qeth_card *card) 
	default:

		break;

	}



out:

	kfree(qib_param_field);

out_free_nothing:

	kfree(qib_parms);

	return rc;

}
@@ -5316,6 +5315,10 @@ static int qeth_set_online(struct qeth_card *card) 


	qeth_print_status_message(card);



	if (card->dev->reg_state != NETREG_REGISTERED)

		/* no need for locking / error handling at this early stage: */

		qeth_set_real_num_tx_queues(card, qeth_tx_actual_queues(card));



	rc = card->discipline->set_online(card, carrier_ok);

	if (rc)

		goto err_online;
@@ -6045,6 +6048,7 @@ EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); 
static void qeth_unregister_dbf_views(void)

{

	int x;



	for (x = 0; x < QETH_DBF_INFOS; x++) {

		debug_unregister(qeth_dbf[x].id);

		qeth_dbf[x].id = NULL;
@@ -6240,6 +6244,7 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card) 


	priv = netdev_priv(dev);

	priv->rx_copybreak = QETH_RX_COPYBREAK;

	priv->tx_wanted_queues = IS_IQD(card) ? QETH_IQD_MIN_TXQ : 1;



	dev->ml_priv = card;

	dev->watchdog_timeo = QETH_TX_TIMEOUT;
@@ -6250,8 +6255,16 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card) 
	SET_NETDEV_DEV(dev, &card->gdev->dev);

	netif_carrier_off(dev);



	dev->ethtool_ops = IS_OSN(card) ? &qeth_osn_ethtool_ops :

					  &qeth_ethtool_ops;

	if (IS_OSN(card)) {

		dev->ethtool_ops = &qeth_osn_ethtool_ops;

	} else {

		dev->ethtool_ops = &qeth_ethtool_ops;

		dev->priv_flags &= ~IFF_TX_SKB_SHARING;

		dev->hw_features |= NETIF_F_SG;

		dev->vlan_features |= NETIF_F_SG;

		if (IS_IQD(card))

			dev->features |= NETIF_F_SG;

	}



	return dev;

}
@@ -6267,28 +6280,6 @@ struct net_device *qeth_clone_netdev(struct net_device *orig) 
	return clone;

}



int qeth_setup_netdev(struct qeth_card *card)

{

	struct net_device *dev = card->dev;

	unsigned int num_tx_queues;



	dev->priv_flags &= ~IFF_TX_SKB_SHARING;

	dev->hw_features |= NETIF_F_SG;

	dev->vlan_features |= NETIF_F_SG;



	if (IS_IQD(card)) {

		dev->features |= NETIF_F_SG;

		num_tx_queues = QETH_IQD_MIN_TXQ;

	} else if (IS_VM_NIC(card)) {

		num_tx_queues = 1;

	} else {

		num_tx_queues = dev->real_num_tx_queues;

	}



	return qeth_set_real_num_tx_queues(card, num_tx_queues);

}

EXPORT_SYMBOL_GPL(qeth_setup_netdev);



static int qeth_core_probe_device(struct ccwgroup_device *gdev)

{

	struct qeth_card *card;
@@ -6421,6 +6412,7 @@ static int qeth_core_set_offline(struct ccwgroup_device *gdev) 
static void qeth_core_shutdown(struct ccwgroup_device *gdev)

{

	struct qeth_card *card = dev_get_drvdata(&gdev->dev);



	qeth_set_allowed_threads(card, 0, 1);

	if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)

		qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
@@ -6959,6 +6951,7 @@ int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count) 


	return rc;

}

EXPORT_SYMBOL_GPL(qeth_set_real_num_tx_queues);



u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,

			  u8 cast_type, struct net_device *sb_dev)

drivers/s390/net/qeth_core_sys.c

+4 −2
Original line number Diff line number Diff line
@@ -52,7 +52,7 @@ static ssize_t qeth_dev_if_name_show(struct device *dev, 
{

	struct qeth_card *card = dev_get_drvdata(dev);



	return sprintf(buf, "%s\n", QETH_CARD_IFNAME(card));

	return sprintf(buf, "%s\n", netdev_name(card->dev));

}



static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL);
@@ -164,9 +164,11 @@ static ssize_t qeth_dev_prioqing_show(struct device *dev, 
		return sprintf(buf, "%s\n", "by skb-priority");

	case QETH_PRIO_Q_ING_VLAN:

		return sprintf(buf, "%s\n", "by VLAN headers");

	default:

	case QETH_PRIO_Q_ING_FIXED:

		return sprintf(buf, "always queue %i\n",

			       card->qdio.default_out_queue);

	default:

		return sprintf(buf, "disabled\n");

	}

}

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