From 832585d2172fdaa29ee6497a94c0b9da0ab97eec Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 18 Nov 2021 17:06:02 +0100 Subject: s390/qeth: allocate RX queue at probe time We always need an RX queue, and there's no reconfig situation either where we would need to free & rebuild the queue. So allocate the RX queue right from the start, and avoid freeing it during unrelated qeth_free_qdio_queues() calls. Signed-off-by: Julian Wiedmann Signed-off-by: Karsten Graul Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 26c55f67289f..d32aa8b705db 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -194,9 +194,6 @@ static void qeth_clear_working_pool_list(struct qeth_card *card) &card->qdio.in_buf_pool.entry_list, list) list_del(&pool_entry->list); - if (!queue) - return; - for (i = 0; i < ARRAY_SIZE(queue->bufs); i++) queue->bufs[i].pool_entry = NULL; } @@ -275,8 +272,8 @@ int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count) QETH_CARD_TEXT(card, 2, "realcbp"); - /* Defer until queue is allocated: */ - if (!card->qdio.in_q) + /* Defer until pool is allocated: */ + if (list_empty(&pool->entry_list)) goto out; /* Remove entries from the pool: */ @@ -2557,14 +2554,9 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card) QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) return 0; - QETH_CARD_TEXT(card, 2, "inq"); - card->qdio.in_q = qeth_alloc_qdio_queue(); - if (!card->qdio.in_q) - goto out_nomem; - /* inbound buffer pool */ if (qeth_alloc_buffer_pool(card)) - goto out_freeinq; + goto out_buffer_pool; /* outbound */ for (i = 0; i < card->qdio.no_out_queues; ++i) { @@ -2605,10 +2597,7 @@ out_freeoutq: card->qdio.out_qs[i] = NULL; } qeth_free_buffer_pool(card); -out_freeinq: - qeth_free_qdio_queue(card->qdio.in_q); - card->qdio.in_q = NULL; -out_nomem: +out_buffer_pool: atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); return -ENOMEM; } @@ -2623,11 +2612,12 @@ static void qeth_free_qdio_queues(struct qeth_card *card) qeth_free_cq(card); for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { - if (card->qdio.in_q->bufs[j].rx_skb) + if (card->qdio.in_q->bufs[j].rx_skb) { consume_skb(card->qdio.in_q->bufs[j].rx_skb); + card->qdio.in_q->bufs[j].rx_skb = NULL; + } } - qeth_free_qdio_queue(card->qdio.in_q); - card->qdio.in_q = NULL; + /* inbound buffer pool */ qeth_free_buffer_pool(card); /* free outbound qdio_qs */ @@ -6447,6 +6437,12 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) qeth_determine_capabilities(card); qeth_set_blkt_defaults(card); + card->qdio.in_q = qeth_alloc_qdio_queue(); + if (!card->qdio.in_q) { + rc = -ENOMEM; + goto err_rx_queue; + } + card->qdio.no_out_queues = card->dev->num_tx_queues; rc = qeth_update_from_chp_desc(card); if (rc) @@ -6473,6 +6469,8 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) err_setup_disc: err_chp_desc: + qeth_free_qdio_queue(card->qdio.in_q); +err_rx_queue: free_netdev(card->dev); err_card: qeth_core_free_card(card); @@ -6494,6 +6492,7 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev) qeth_free_qdio_queues(card); + qeth_free_qdio_queue(card->qdio.in_q); free_netdev(card->dev); qeth_core_free_card(card); put_device(&gdev->dev); -- cgit v1.2.3 From 9961d6d50b7f53ab75049ebf3bea1ff560014bed Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 18 Nov 2021 17:06:05 +0100 Subject: s390/ctcm: fix format string The second parameter as specified by the format string is actually a string not an integer. Acked-by: Julian Wiedmann Signed-off-by: Heiko Carstens Signed-off-by: Karsten Graul Signed-off-by: David S. Miller --- drivers/s390/net/ctcm_fsms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c index de2423c72b02..5db591cf7215 100644 --- a/drivers/s390/net/ctcm_fsms.c +++ b/drivers/s390/net/ctcm_fsms.c @@ -1406,7 +1406,7 @@ static void ctcmpc_chx_rx(fsm_instance *fi, int event, void *arg) if (new_skb == NULL) { CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, - "%s(%d): skb allocation failed", + "%s(%s): skb allocation failed", CTCM_FUNTAIL, dev->name); fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); goto again; -- cgit v1.2.3 From dddbf91387a04a03a8e071cb4857403df219382e Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 18 Nov 2021 17:06:06 +0100 Subject: s390/ctcm: add __printf format attribute to ctcm_dbf_longtext MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allow the compiler to recognize and check format strings and parameters. As reported with allmodconfig and W=1: drivers/s390/net/ctcm_dbug.c: In function ‘ctcm_dbf_longtext’: drivers/s390/net/ctcm_dbug.c:73:9: error: function ‘ctcm_dbf_longtext’ might be a candidate for ‘gnu_printf’ format attribute [-Werror=suggest-attribute=format] 73 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); | ^~~~~~~~~ Acked-by: Julian Wiedmann Signed-off-by: Heiko Carstens Signed-off-by: Karsten Graul Signed-off-by: David S. Miller --- drivers/s390/net/ctcm_dbug.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/s390') diff --git a/drivers/s390/net/ctcm_dbug.h b/drivers/s390/net/ctcm_dbug.h index 675575ef162e..cce11daf3245 100644 --- a/drivers/s390/net/ctcm_dbug.h +++ b/drivers/s390/net/ctcm_dbug.h @@ -65,6 +65,7 @@ extern struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS]; int ctcm_register_dbf_views(void); void ctcm_unregister_dbf_views(void); +__printf(3, 4) void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *text, ...); static inline const char *strtail(const char *s, int n) -- cgit v1.2.3 From 09ae598271f8cfe46148cece8e03509b9da16334 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 18 Nov 2021 17:06:07 +0100 Subject: s390/lcs: add braces around empty function body MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix allmodconfig + W=1 compile breakage: drivers/s390/net/lcs.c: In function ‘lcs_get_frames_cb’: drivers/s390/net/lcs.c:1823:25: error: suggest braces around empty body in an ‘else’ statement [-Werror=empty-body] 1823 | ; // FIXME: error message ? | ^ Acked-by: Julian Wiedmann Signed-off-by: Heiko Carstens Signed-off-by: Karsten Graul Signed-off-by: David S. Miller --- drivers/s390/net/lcs.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 2a6479740600..a61d38a1b4ed 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -1808,19 +1808,20 @@ lcs_get_frames_cb(struct lcs_channel *channel, struct lcs_buffer *buffer) return; } /* What kind of frame is it? */ - if (lcs_hdr->type == LCS_FRAME_TYPE_CONTROL) + if (lcs_hdr->type == LCS_FRAME_TYPE_CONTROL) { /* Control frame. */ lcs_get_control(card, (struct lcs_cmd *) lcs_hdr); - else if (lcs_hdr->type == LCS_FRAME_TYPE_ENET || - lcs_hdr->type == LCS_FRAME_TYPE_TR || - lcs_hdr->type == LCS_FRAME_TYPE_FDDI) + } else if (lcs_hdr->type == LCS_FRAME_TYPE_ENET || + lcs_hdr->type == LCS_FRAME_TYPE_TR || + lcs_hdr->type == LCS_FRAME_TYPE_FDDI) { /* Normal network packet. */ lcs_get_skb(card, (char *)(lcs_hdr + 1), lcs_hdr->offset - offset - sizeof(struct lcs_header)); - else + } else { /* Unknown frame type. */ ; // FIXME: error message ? + } /* Proceed to next frame. */ offset = lcs_hdr->offset; lcs_hdr->offset = LCS_ILLEGAL_OFFSET; -- cgit v1.2.3 From 7462494408cd3de8b0bc1e79670bf213288501d0 Mon Sep 17 00:00:00 2001 From: Hao Chen Date: Thu, 18 Nov 2021 20:12:43 +0800 Subject: ethtool: extend ringparam setting/getting API with rx_buf_len Add two new parameters kernel_ringparam and extack for .get_ringparam and .set_ringparam to extend more ring params through netlink. Signed-off-by: Hao Chen Signed-off-by: Guangbin Huang Signed-off-by: David S. Miller --- drivers/s390/net/qeth_ethtool.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_ethtool.c b/drivers/s390/net/qeth_ethtool.c index 46d0fe0d0e8a..b0b36b2132fe 100644 --- a/drivers/s390/net/qeth_ethtool.c +++ b/drivers/s390/net/qeth_ethtool.c @@ -144,7 +144,9 @@ static int qeth_set_coalesce(struct net_device *dev, } static void qeth_get_ringparam(struct net_device *dev, - struct ethtool_ringparam *param) + struct ethtool_ringparam *param, + struct kernel_ethtool_ringparam *kernel_param, + struct netlink_ext_ack *extack) { struct qeth_card *card = dev->ml_priv; -- cgit v1.2.3 From 5e9756a66fb5741f46b9c1d9ad50e4e57c8d6816 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 7 Dec 2021 10:04:48 +0100 Subject: s390/qeth: simplify qeth_receive_skb() Now that the OSN code is gone, we don't need the second switch statement in the RX path. And getting rid of its (unreachable) default case is a nice simplification. Also don't pass in the full HW header, all we still need is a flag to indicate whether the skb can use CSO. This we can already obtain during the first peek at the HW header. Signed-off-by: Julian Wiedmann Reviewed-by: Alexandra Winter Reviewed-by: Wenjia Zhang Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_core_main.c | 34 ++++++++++++---------------------- 1 file changed, 12 insertions(+), 22 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index d32aa8b705db..629a7f5c4d71 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -5575,29 +5575,9 @@ static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, #endif static void qeth_receive_skb(struct qeth_card *card, struct sk_buff *skb, - struct qeth_hdr *hdr, bool uses_frags) + bool uses_frags, bool is_cso) { struct napi_struct *napi = &card->napi; - bool is_cso; - - switch (hdr->hdr.l2.id) { -#if IS_ENABLED(CONFIG_QETH_L3) - case QETH_HEADER_TYPE_LAYER3: - qeth_l3_rebuild_skb(card, skb, hdr); - is_cso = hdr->hdr.l3.ext_flags & QETH_HDR_EXT_CSUM_TRANSP_REQ; - break; -#endif - case QETH_HEADER_TYPE_LAYER2: - is_cso = hdr->hdr.l2.flags[1] & QETH_HDR_EXT_CSUM_TRANSP_REQ; - break; - default: - /* never happens */ - if (uses_frags) - napi_free_frags(napi); - else - kfree_skb(skb); - return; - } if (is_cso && (card->dev->features & NETIF_F_RXCSUM)) { skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -5654,6 +5634,7 @@ static int qeth_extract_skb(struct qeth_card *card, struct qeth_hdr *hdr; struct sk_buff *skb; int skb_len = 0; + bool is_cso; element = &buffer->element[*element_no]; @@ -5673,11 +5654,15 @@ next_packet: switch (hdr->hdr.l2.id) { case QETH_HEADER_TYPE_LAYER2: skb_len = hdr->hdr.l2.pkt_length; + is_cso = hdr->hdr.l2.flags[1] & QETH_HDR_EXT_CSUM_TRANSP_REQ; + linear_len = ETH_HLEN; headroom = 0; break; case QETH_HEADER_TYPE_LAYER3: skb_len = hdr->hdr.l3.length; + is_cso = hdr->hdr.l3.ext_flags & QETH_HDR_EXT_CSUM_TRANSP_REQ; + if (!IS_LAYER3(card)) { QETH_CARD_STAT_INC(card, rx_dropped_notsupp); goto walk_packet; @@ -5804,7 +5789,12 @@ walk_packet: *element_no = element - &buffer->element[0]; *__offset = offset; - qeth_receive_skb(card, skb, hdr, uses_frags); +#if IS_ENABLED(CONFIG_QETH_L3) + if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER3) + qeth_l3_rebuild_skb(card, skb, hdr); +#endif + + qeth_receive_skb(card, skb, uses_frags, is_cso); return 0; } -- cgit v1.2.3 From 2dbc7a1dde9e853b2a346fd811fec8cc45bce911 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 7 Dec 2021 10:04:49 +0100 Subject: s390/qeth: split up L2 netdev_ops Splitting up the netdev_ops allows for fine-tuning some of the ndo's in subsequent patches. Signed-off-by: Julian Wiedmann Reviewed-by: Wenjia Zhang Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_l2_main.c | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 0347fc184786..48355fbc0712 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -726,7 +726,8 @@ struct qeth_l2_br2dev_event_work { unsigned char addr[ETH_ALEN]; }; -static const struct net_device_ops qeth_l2_netdev_ops; +static const struct net_device_ops qeth_l2_iqd_netdev_ops; +static const struct net_device_ops qeth_l2_osa_netdev_ops; static bool qeth_l2_must_learn(struct net_device *netdev, struct net_device *dstdev) @@ -738,7 +739,8 @@ static bool qeth_l2_must_learn(struct net_device *netdev, (priv->brport_features & BR_LEARNING_SYNC) && !(br_port_flag_is_set(netdev, BR_ISOLATED) && br_port_flag_is_set(dstdev, BR_ISOLATED)) && - netdev->netdev_ops == &qeth_l2_netdev_ops); + (netdev->netdev_ops == &qeth_l2_iqd_netdev_ops || + netdev->netdev_ops == &qeth_l2_osa_netdev_ops)); } /** @@ -1051,7 +1053,28 @@ static int qeth_l2_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, return rc; } -static const struct net_device_ops qeth_l2_netdev_ops = { +static const struct net_device_ops qeth_l2_iqd_netdev_ops = { + .ndo_open = qeth_open, + .ndo_stop = qeth_stop, + .ndo_get_stats64 = qeth_get_stats64, + .ndo_start_xmit = qeth_l2_hard_start_xmit, + .ndo_features_check = qeth_features_check, + .ndo_select_queue = qeth_l2_select_queue, + .ndo_validate_addr = qeth_l2_validate_addr, + .ndo_set_rx_mode = qeth_l2_set_rx_mode, + .ndo_eth_ioctl = qeth_do_ioctl, + .ndo_siocdevprivate = qeth_siocdevprivate, + .ndo_set_mac_address = qeth_l2_set_mac_address, + .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, + .ndo_tx_timeout = qeth_tx_timeout, + .ndo_fix_features = qeth_fix_features, + .ndo_set_features = qeth_set_features, + .ndo_bridge_getlink = qeth_l2_bridge_getlink, + .ndo_bridge_setlink = qeth_l2_bridge_setlink, +}; + +static const struct net_device_ops qeth_l2_osa_netdev_ops = { .ndo_open = qeth_open, .ndo_stop = qeth_stop, .ndo_get_stats64 = qeth_get_stats64, @@ -1074,8 +1097,9 @@ static const struct net_device_ops qeth_l2_netdev_ops = { static int qeth_l2_setup_netdev(struct qeth_card *card) { + card->dev->netdev_ops = IS_IQD(card) ? &qeth_l2_iqd_netdev_ops : + &qeth_l2_osa_netdev_ops; card->dev->needed_headroom = sizeof(struct qeth_hdr); - card->dev->netdev_ops = &qeth_l2_netdev_ops; card->dev->priv_flags |= IFF_UNICAST_FLT; if (IS_OSM(card)) { -- cgit v1.2.3 From cdf8df5b42e7d9e2f6e660e672d42edb0514b862 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 7 Dec 2021 10:04:50 +0100 Subject: s390/qeth: don't offer .ndo_bridge_* ops for OSA devices qeth_l2_detect_dev2br_support() will only set brport_hw_features for IQD devices. So qeth_l2_bridge_getlink() and qeth_l2_bridge_setlink() will always return -EOPNOTSUPP on OSA devices. Just don't offer these callbacks instead. Signed-off-by: Julian Wiedmann Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_l2_main.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 48355fbc0712..d1933c54bfbb 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -1091,8 +1091,6 @@ static const struct net_device_ops qeth_l2_osa_netdev_ops = { .ndo_tx_timeout = qeth_tx_timeout, .ndo_fix_features = qeth_fix_features, .ndo_set_features = qeth_set_features, - .ndo_bridge_getlink = qeth_l2_bridge_getlink, - .ndo_bridge_setlink = qeth_l2_bridge_setlink, }; static int qeth_l2_setup_netdev(struct qeth_card *card) -- cgit v1.2.3 From 1b9e410f45bf68c068fa3422ca7b65ce4d08e5ed Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 7 Dec 2021 10:04:51 +0100 Subject: s390/qeth: fine-tune .ndo_select_queue() Avoid a conditional branch for L2 devices when selecting the TX queue, and have shared logic for OSA devices. Signed-off-by: Julian Wiedmann Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_core.h | 4 ++-- drivers/s390/net/qeth_core_main.c | 15 +++++++++++++-- drivers/s390/net/qeth_l2_main.c | 20 ++++++-------------- drivers/s390/net/qeth_l3_main.c | 13 +------------ 4 files changed, 22 insertions(+), 30 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 20dca4c0384a..de25d7ac41da 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -1030,8 +1030,6 @@ static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, data, QETH_PROT_IPV6); } -int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb); - extern const struct qeth_discipline qeth_l2_discipline; extern const struct qeth_discipline qeth_l3_discipline; extern const struct ethtool_ops qeth_ethtool_ops; @@ -1099,6 +1097,8 @@ void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count); u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, u8 cast_type, struct net_device *sb_dev); +u16 qeth_osa_select_queue(struct net_device *dev, struct sk_buff *skb, + struct net_device *sb_dev); int qeth_open(struct net_device *dev); int qeth_stop(struct net_device *dev); diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 629a7f5c4d71..093ee14e8051 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3769,7 +3769,7 @@ static void qeth_qdio_output_handler(struct ccw_device *ccwdev, /* * Note: Function assumes that we have 4 outbound queues. */ -int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb) +static int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb) { struct vlan_ethhdr *veth = vlan_eth_hdr(skb); u8 tos; @@ -3814,7 +3814,6 @@ int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb) } return card->qdio.default_out_queue; } -EXPORT_SYMBOL_GPL(qeth_get_priority_queue); /** * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. @@ -7078,6 +7077,18 @@ u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, } EXPORT_SYMBOL_GPL(qeth_iqd_select_queue); +u16 qeth_osa_select_queue(struct net_device *dev, struct sk_buff *skb, + struct net_device *sb_dev) +{ + struct qeth_card *card = dev->ml_priv; + + if (qeth_uses_tx_prio_queueing(card)) + return qeth_get_priority_queue(card, skb); + + return netdev_pick_tx(dev, skb, sb_dev); +} +EXPORT_SYMBOL_GPL(qeth_osa_select_queue); + int qeth_open(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index d1933c54bfbb..303461d70af3 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -519,19 +519,11 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, return NETDEV_TX_OK; } -static u16 qeth_l2_select_queue(struct net_device *dev, struct sk_buff *skb, - struct net_device *sb_dev) +static u16 qeth_l2_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, + struct net_device *sb_dev) { - struct qeth_card *card = dev->ml_priv; - - if (IS_IQD(card)) - return qeth_iqd_select_queue(dev, skb, - qeth_get_ether_cast_type(skb), - sb_dev); - if (qeth_uses_tx_prio_queueing(card)) - return qeth_get_priority_queue(card, skb); - - return netdev_pick_tx(dev, skb, sb_dev); + return qeth_iqd_select_queue(dev, skb, qeth_get_ether_cast_type(skb), + sb_dev); } static void qeth_l2_set_rx_mode(struct net_device *dev) @@ -1059,7 +1051,7 @@ static const struct net_device_ops qeth_l2_iqd_netdev_ops = { .ndo_get_stats64 = qeth_get_stats64, .ndo_start_xmit = qeth_l2_hard_start_xmit, .ndo_features_check = qeth_features_check, - .ndo_select_queue = qeth_l2_select_queue, + .ndo_select_queue = qeth_l2_iqd_select_queue, .ndo_validate_addr = qeth_l2_validate_addr, .ndo_set_rx_mode = qeth_l2_set_rx_mode, .ndo_eth_ioctl = qeth_do_ioctl, @@ -1080,7 +1072,7 @@ static const struct net_device_ops qeth_l2_osa_netdev_ops = { .ndo_get_stats64 = qeth_get_stats64, .ndo_start_xmit = qeth_l2_hard_start_xmit, .ndo_features_check = qeth_features_check, - .ndo_select_queue = qeth_l2_select_queue, + .ndo_select_queue = qeth_osa_select_queue, .ndo_validate_addr = qeth_l2_validate_addr, .ndo_set_rx_mode = qeth_l2_set_rx_mode, .ndo_eth_ioctl = qeth_do_ioctl, diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 48a886f7af62..9251ad276ee8 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1822,17 +1822,6 @@ static u16 qeth_l3_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, qeth_l3_get_cast_type(skb, proto), sb_dev); } -static u16 qeth_l3_osa_select_queue(struct net_device *dev, struct sk_buff *skb, - struct net_device *sb_dev) -{ - struct qeth_card *card = dev->ml_priv; - - if (qeth_uses_tx_prio_queueing(card)) - return qeth_get_priority_queue(card, skb); - - return netdev_pick_tx(dev, skb, sb_dev); -} - static const struct net_device_ops qeth_l3_netdev_ops = { .ndo_open = qeth_open, .ndo_stop = qeth_stop, @@ -1854,7 +1843,7 @@ static const struct net_device_ops qeth_l3_osa_netdev_ops = { .ndo_get_stats64 = qeth_get_stats64, .ndo_start_xmit = qeth_l3_hard_start_xmit, .ndo_features_check = qeth_l3_osa_features_check, - .ndo_select_queue = qeth_l3_osa_select_queue, + .ndo_select_queue = qeth_osa_select_queue, .ndo_validate_addr = eth_validate_addr, .ndo_set_rx_mode = qeth_l3_set_rx_mode, .ndo_eth_ioctl = qeth_do_ioctl, -- cgit v1.2.3 From 6dc490e80ca33e4e49ed5b81df0ec9bfad6bf1b6 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 7 Dec 2021 10:04:52 +0100 Subject: s390/qeth: remove check for packing mode in qeth_check_outbound_queue() If qeth_check_outbound_queue() finds a partially filled TX buffer on the queue and flushes it, then the queue _must_ have been in packing mode. Remove the redundant check when updating the relevant statistics. Signed-off-by: Julian Wiedmann Reviewed-by: Alexandra Winter Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_core_main.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 093ee14e8051..c296e0556f49 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3635,12 +3635,10 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || !atomic_read(&queue->set_pci_flags_count)) { unsigned int index, flush_cnt; - bool q_was_packing; spin_lock(&queue->lock); index = queue->next_buf_to_fill; - q_was_packing = queue->do_pack; flush_cnt = qeth_switch_to_nonpacking_if_needed(queue); if (!flush_cnt && !atomic_read(&queue->set_pci_flags_count)) @@ -3648,8 +3646,7 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) if (flush_cnt) { qeth_flush_buffers(queue, index, flush_cnt); - if (q_was_packing) - QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_cnt); + QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_cnt); } spin_unlock(&queue->lock); -- cgit v1.2.3