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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 

drivers/net/ethernet/cadence/macb_main.c
  5cebb40bc9 ("net: macb: Fix PTP one step sync support")
  138badbc21 ("net: macb: use NAPI for TX completion path")
https://lore.kernel.org/all/20220523111021.31489367@canb.auug.org.au/

net/smc/af_smc.c
  75c1edf23b ("net/smc: postpone sk_refcnt increment in connect()")
  3aba103006 ("net/smc: align the connect behaviour with TCP")
https://lore.kernel.org/all/20220524114408.4bf1af38@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-05-23 21:19:17 -07:00
parent 1ef0736c07 7fb0269720
commit 677fb75253
24 changed files with 192 additions and 91 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/admin-guide/sysctl/net.rst
View File

@ -382,6 +382,15 @@ option is set to SOCK_TXREHASH_DEFAULT (i. e. not overridden by setsockopt).
If set to 1 (default), hash rethink is performed on listening socket.
If set to 0, hash rethink is not performed.
gro_normal_batch
----------------
Maximum number of the segments to batch up on output of GRO. When a packet
exits GRO, either as a coalesced superframe or as an original packet which
GRO has decided not to coalesce, it is placed on a per-NAPI list. This
list is then passed to the stack when the number of segments reaches the
gro_normal_batch limit.
2. /proc/sys/net/unix - Parameters for Unix domain sockets
----------------------------------------------------------

11
drivers/net/amt.c
View File

@ -943,7 +943,7 @@ static void amt_req_work(struct work_struct *work)
if (amt->status < AMT_STATUS_RECEIVED_ADVERTISEMENT)
goto out;
if (amt->req_cnt++ > AMT_MAX_REQ_COUNT) {
if (amt->req_cnt > AMT_MAX_REQ_COUNT) {
netdev_dbg(amt->dev, "Gateway is not ready");
amt->qi = AMT_INIT_REQ_TIMEOUT;
amt->ready4 = false;
@ -951,13 +951,15 @@ static void amt_req_work(struct work_struct *work)
amt->remote_ip = 0;
__amt_update_gw_status(amt, AMT_STATUS_INIT, false);
amt->req_cnt = 0;
goto out;
}
spin_unlock_bh(&amt->lock);
amt_send_request(amt, false);
amt_send_request(amt, true);
amt_update_gw_status(amt, AMT_STATUS_SENT_REQUEST, true);
spin_lock_bh(&amt->lock);
__amt_update_gw_status(amt, AMT_STATUS_SENT_REQUEST, true);
amt->req_cnt++;
out:
exp = min_t(u32, (1 * (1 << amt->req_cnt)), AMT_MAX_REQ_TIMEOUT);
mod_delayed_work(amt_wq, &amt->req_wq, msecs_to_jiffies(exp * 1000));
@ -2696,9 +2698,8 @@ static int amt_rcv(struct sock *sk, struct sk_buff *skb)
err = true;
goto drop;
}
if (amt_advertisement_handler(amt, skb))
amt->dev->stats.rx_dropped++;
goto out;
err = amt_advertisement_handler(amt, skb);
break;
case AMT_MSG_MULTICAST_DATA:
if (iph->saddr != amt->remote_ip) {
netdev_dbg(amt->dev, "Invalid Relay IP\n");

15
drivers/net/bonding/bond_main.c
View File

@ -5591,16 +5591,23 @@ static int bond_ethtool_get_ts_info(struct net_device *bond_dev,
const struct ethtool_ops *ops;
struct net_device *real_dev;
struct phy_device *phydev;
int ret = 0;
rcu_read_lock();
real_dev = bond_option_active_slave_get_rcu(bond);
dev_hold(real_dev);
rcu_read_unlock();
if (real_dev) {
ops = real_dev->ethtool_ops;
phydev = real_dev->phydev;
if (phy_has_tsinfo(phydev)) {
return phy_ts_info(phydev, info);
ret = phy_ts_info(phydev, info);
goto out;
} else if (ops->get_ts_info) {
return ops->get_ts_info(real_dev, info);
ret = ops->get_ts_info(real_dev, info);
goto out;
}
}
@ -5608,7 +5615,9 @@ static int bond_ethtool_get_ts_info(struct net_device *bond_dev,
SOF_TIMESTAMPING_SOFTWARE;
info->phc_index = -1;
return 0;
out:
dev_put(real_dev);
return ret;
}
static const struct ethtool_ops bond_ethtool_ops = {

3
drivers/net/dsa/Kconfig
View File

@ -72,7 +72,6 @@ source "drivers/net/dsa/realtek/Kconfig"
config NET_DSA_SMSC_LAN9303
tristate
depends on VLAN_8021Q || VLAN_8021Q=n
select NET_DSA_TAG_LAN9303
select REGMAP
help
@ -82,6 +81,7 @@ config NET_DSA_SMSC_LAN9303
config NET_DSA_SMSC_LAN9303_I2C
tristate "SMSC/Microchip LAN9303 3-ports 10/100 ethernet switch in I2C managed mode"
depends on I2C
depends on VLAN_8021Q || VLAN_8021Q=n
select NET_DSA_SMSC_LAN9303
select REGMAP_I2C
help
@ -91,6 +91,7 @@ config NET_DSA_SMSC_LAN9303_I2C
config NET_DSA_SMSC_LAN9303_MDIO
tristate "SMSC/Microchip LAN9303 3-ports 10/100 ethernet switch in MDIO managed mode"
select NET_DSA_SMSC_LAN9303
depends on VLAN_8021Q || VLAN_8021Q=n
help
Enable access functions if the SMSC/Microchip LAN9303 is configured
for MDIO managed mode.

40
drivers/net/ethernet/cadence/macb_main.c
View File

@ -36,6 +36,7 @@
#include <linux/iopoll.h>
#include <linux/phy/phy.h>
#include <linux/pm_runtime.h>
#include <linux/ptp_classify.h>
#include <linux/reset.h>
#include "macb.h"
@ -1122,6 +1123,36 @@ static void macb_tx_error_task(struct work_struct *work)
napi_enable(&queue->napi_tx);
}
static bool ptp_one_step_sync(struct sk_buff *skb)
{
struct ptp_header *hdr;
unsigned int ptp_class;
u8 msgtype;
/* No need to parse packet if PTP TS is not involved */
if (likely(!(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)))
goto not_oss;
/* Identify and return whether PTP one step sync is being processed */
ptp_class = ptp_classify_raw(skb);
if (ptp_class == PTP_CLASS_NONE)
goto not_oss;
hdr = ptp_parse_header(skb, ptp_class);
if (!hdr)
goto not_oss;
if (hdr->flag_field[0] & PTP_FLAG_TWOSTEP)
goto not_oss;
msgtype = ptp_get_msgtype(hdr, ptp_class);
if (msgtype == PTP_MSGTYPE_SYNC)
return true;
not_oss:
return false;
}
static int macb_tx_complete(struct macb_queue *queue, int budget)
{
struct macb *bp = queue->bp;
@ -1158,8 +1189,8 @@ static int macb_tx_complete(struct macb_queue *queue, int budget)
/* First, update TX stats if needed */
if (skb) {
if (unlikely(skb_shinfo(skb)->tx_flags &
SKBTX_HW_TSTAMP) &&
if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
!ptp_one_step_sync(skb) &&
gem_ptp_do_txstamp(queue, skb, desc) == 0) {
/* skb now belongs to timestamp buffer
* and will be removed later
@ -2063,7 +2094,8 @@ static unsigned int macb_tx_map(struct macb *bp,
ctrl |= MACB_BF(TX_LSO, lso_ctrl);
ctrl |= MACB_BF(TX_TCP_SEQ_SRC, seq_ctrl);
if ((bp->dev->features & NETIF_F_HW_CSUM) &&
skb->ip_summed != CHECKSUM_PARTIAL && !lso_ctrl)
skb->ip_summed != CHECKSUM_PARTIAL && !lso_ctrl &&
!ptp_one_step_sync(skb))
ctrl |= MACB_BIT(TX_NOCRC);
} else
/* Only set MSS/MFS on payload descriptors
@ -2161,7 +2193,7 @@ static int macb_pad_and_fcs(struct sk_buff **skb, struct net_device *ndev)
if (!(ndev->features & NETIF_F_HW_CSUM) ||
!((*skb)->ip_summed != CHECKSUM_PARTIAL) ||
skb_shinfo(*skb)->gso_size) /* Not available for GSO */
skb_shinfo(*skb)->gso_size || ptp_one_step_sync(*skb))
return 0;
if (padlen <= 0) {

4
drivers/net/ethernet/cadence/macb_ptp.c
View File

@ -470,8 +470,10 @@ int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd)
case HWTSTAMP_TX_ONESTEP_SYNC:
if (gem_ptp_set_one_step_sync(bp, 1) != 0)
return -ERANGE;
fallthrough;
tx_bd_control = TSTAMP_ALL_FRAMES;
break;
case HWTSTAMP_TX_ON:
gem_ptp_set_one_step_sync(bp, 0);
tx_bd_control = TSTAMP_ALL_FRAMES;
break;
default:

12
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
View File

@ -1097,6 +1097,7 @@ static void dpaa2_eth_free_tx_fd(struct dpaa2_eth_priv *priv,
u32 fd_len = dpaa2_fd_get_len(fd);
struct dpaa2_sg_entry *sgt;
int should_free_skb = 1;
void *tso_hdr;
int i;
fd_addr = dpaa2_fd_get_addr(fd);
@ -1135,20 +1136,21 @@ static void dpaa2_eth_free_tx_fd(struct dpaa2_eth_priv *priv,
sgt = (struct dpaa2_sg_entry *)(buffer_start +
priv->tx_data_offset);
/* Unmap the SGT buffer */
dma_unmap_single(dev, fd_addr, swa->tso.sgt_size,
DMA_BIDIRECTIONAL);
/* Unmap and free the header */
tso_hdr = dpaa2_iova_to_virt(priv->iommu_domain, dpaa2_sg_get_addr(sgt));
dma_unmap_single(dev, dpaa2_sg_get_addr(sgt), TSO_HEADER_SIZE,
DMA_TO_DEVICE);
kfree(dpaa2_iova_to_virt(priv->iommu_domain, dpaa2_sg_get_addr(sgt)));
kfree(tso_hdr);
/* Unmap the other SG entries for the data */
for (i = 1; i < swa->tso.num_sg; i++)
dma_unmap_single(dev, dpaa2_sg_get_addr(&sgt[i]),
dpaa2_sg_get_len(&sgt[i]), DMA_TO_DEVICE);
/* Unmap the SGT buffer */
dma_unmap_single(dev, fd_addr, swa->sg.sgt_size,
DMA_BIDIRECTIONAL);
if (!swa->tso.is_last_fd)
should_free_skb = 0;
} else {

8
drivers/net/ethernet/freescale/fec_main.c
View File

@ -3876,9 +3876,11 @@ fec_probe(struct platform_device *pdev)
mutex_init(&fep->ptp_clk_mutex);
/* clk_ref is optional, depends on board */
fep->clk_ref = devm_clk_get(&pdev->dev, "enet_clk_ref");
if (IS_ERR(fep->clk_ref))
fep->clk_ref = NULL;
fep->clk_ref = devm_clk_get_optional(&pdev->dev, "enet_clk_ref");
if (IS_ERR(fep->clk_ref)) {
ret = PTR_ERR(fep->clk_ref);
goto failed_clk;
}
fep->clk_ref_rate = clk_get_rate(fep->clk_ref);
/* clk_2x_txclk is optional, depends on board */

2
drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c
View File

@ -386,7 +386,7 @@ static int alloc_wqes_shadow(struct hinic_wq *wq)
return -ENOMEM;
wq->shadow_idx = devm_kcalloc(&pdev->dev, wq->num_q_pages,
sizeof(wq->prod_idx), GFP_KERNEL);
sizeof(*wq->shadow_idx), GFP_KERNEL);
if (!wq->shadow_idx)
goto err_shadow_idx;

13
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
View File

@ -1084,8 +1084,9 @@ static int stmmac_test_rxp(struct stmmac_priv *priv)
unsigned char addr[ETH_ALEN] = {0xde, 0xad, 0xbe, 0xef, 0x00, 0x00};
struct tc_cls_u32_offload cls_u32 = { };
struct stmmac_packet_attrs attr = { };
struct tc_action **actions, *act;
struct tc_action **actions;
struct tc_u32_sel *sel;
struct tcf_gact *gact;
struct tcf_exts *exts;
int ret, i, nk = 1;
@ -1110,8 +1111,8 @@ static int stmmac_test_rxp(struct stmmac_priv *priv)
goto cleanup_exts;
}
act = kcalloc(nk, sizeof(*act), GFP_KERNEL);
if (!act) {
gact = kcalloc(nk, sizeof(*gact), GFP_KERNEL);
if (!gact) {
ret = -ENOMEM;
goto cleanup_actions;
}
@ -1126,9 +1127,7 @@ static int stmmac_test_rxp(struct stmmac_priv *priv)
exts->nr_actions = nk;
exts->actions = actions;
for (i = 0; i < nk; i++) {
struct tcf_gact *gact = to_gact(&act[i]);
actions[i] = &act[i];
actions[i] = (struct tc_action *)&gact[i];
gact->tcf_action = TC_ACT_SHOT;
}
@ -1152,7 +1151,7 @@ static int stmmac_test_rxp(struct stmmac_priv *priv)
stmmac_tc_setup_cls_u32(priv, priv, &cls_u32);
cleanup_act:
kfree(act);
kfree(gact);
cleanup_actions:
kfree(actions);
cleanup_exts:

5
drivers/net/hyperv/netvsc_drv.c
View File

@ -2643,7 +2643,10 @@ static int netvsc_suspend(struct hv_device *dev)
/* Save the current config info */
ndev_ctx->saved_netvsc_dev_info = netvsc_devinfo_get(nvdev);
if (!ndev_ctx->saved_netvsc_dev_info) {
ret = -ENOMEM;
goto out;
}
ret = netvsc_detach(net, nvdev);
out:
rtnl_unlock();

17
drivers/nfc/st21nfca/se.c
View File

@ -241,7 +241,7 @@ int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
}
EXPORT_SYMBOL(st21nfca_hci_se_io);
static void st21nfca_se_wt_timeout(struct timer_list *t)
static void st21nfca_se_wt_work(struct work_struct *work)
{
/*
* No answer from the secure element
@ -254,8 +254,9 @@ static void st21nfca_se_wt_timeout(struct timer_list *t)
*/
/* hardware reset managed through VCC_UICC_OUT power supply */
u8 param = 0x01;
struct st21nfca_hci_info *info = from_timer(info, t,
se_info.bwi_timer);
struct st21nfca_hci_info *info = container_of(work,
struct st21nfca_hci_info,
se_info.timeout_work);
info->se_info.bwi_active = false;
@ -271,6 +272,13 @@ static void st21nfca_se_wt_timeout(struct timer_list *t)
info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
}
static void st21nfca_se_wt_timeout(struct timer_list *t)
{
struct st21nfca_hci_info *info = from_timer(info, t, se_info.bwi_timer);
schedule_work(&info->se_info.timeout_work);
}
static void st21nfca_se_activation_timeout(struct timer_list *t)
{
struct st21nfca_hci_info *info = from_timer(info, t,
@ -360,6 +368,7 @@ int st21nfca_apdu_reader_event_received(struct nfc_hci_dev *hdev,
switch (event) {
case ST21NFCA_EVT_TRANSMIT_DATA:
del_timer_sync(&info->se_info.bwi_timer);
cancel_work_sync(&info->se_info.timeout_work);
info->se_info.bwi_active = false;
r = nfc_hci_send_event(hdev, ST21NFCA_DEVICE_MGNT_GATE,
ST21NFCA_EVT_SE_END_OF_APDU_TRANSFER, NULL, 0);
@ -389,6 +398,7 @@ void st21nfca_se_init(struct nfc_hci_dev *hdev)
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
init_completion(&info->se_info.req_completion);
INIT_WORK(&info->se_info.timeout_work, st21nfca_se_wt_work);
/* initialize timers */
timer_setup(&info->se_info.bwi_timer, st21nfca_se_wt_timeout, 0);
info->se_info.bwi_active = false;
@ -416,6 +426,7 @@ void st21nfca_se_deinit(struct nfc_hci_dev *hdev)
if (info->se_info.se_active)
del_timer_sync(&info->se_info.se_active_timer);
cancel_work_sync(&info->se_info.timeout_work);
info->se_info.bwi_active = false;
info->se_info.se_active = false;
}

1
drivers/nfc/st21nfca/st21nfca.h
View File

@ -141,6 +141,7 @@ struct st21nfca_se_info {
se_io_cb_t cb;
void *cb_context;
struct work_struct timeout_work;
};
struct st21nfca_hci_info {

3
include/linux/ptp_classify.h
View File

@ -43,6 +43,9 @@
#define OFF_PTP_SOURCE_UUID 22 /* PTPv1 only */
#define OFF_PTP_SEQUENCE_ID 30
/* PTP header flag fields */
#define PTP_FLAG_TWOSTEP BIT(1)
/* Below defines should actually be removed at some point in time. */
#define IP6_HLEN 40
#define UDP_HLEN 8

2
include/trace/events/rxrpc.h
View File

@ -1330,7 +1330,7 @@ TRACE_EVENT(rxrpc_call_reset,
__entry->call_serial = call->rx_serial;
__entry->conn_serial = call->conn->hi_serial;
__entry->tx_seq = call->tx_hard_ack;
__entry->rx_seq = call->ackr_seen;
__entry->rx_seq = call->rx_hard_ack;
),
TP_printk("c=%08x %08x:%08x r=%08x/%08x tx=%08x rx=%08x",

5
net/bluetooth/hci_conn.c
View File

@ -943,10 +943,11 @@ static void create_le_conn_complete(struct hci_dev *hdev, void *data, int err)
bt_dev_err(hdev, "request failed to create LE connection: err %d", err);
if (!conn)
/* Check if connection is still pending */
if (conn != hci_lookup_le_connect(hdev))
goto done;
hci_le_conn_failed(conn, err);
hci_conn_failed(conn, err);
done:
hci_dev_unlock(hdev);

8
net/bluetooth/hci_event.c
View File

@ -5632,10 +5632,12 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
status = HCI_ERROR_INVALID_PARAMETERS;
}
if (status) {
hci_conn_failed(conn, status);
/* All connection failure handling is taken care of by the
* hci_conn_failed function which is triggered by the HCI
* request completion callbacks used for connecting.
*/
if (status)
goto unlock;
}
if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
addr_type = BDADDR_LE_PUBLIC;

13
net/rxrpc/ar-internal.h
View File

@ -668,13 +668,12 @@ struct rxrpc_call {
spinlock_t input_lock; /* Lock for packet input to this call */
/* receive-phase ACK management */
/* Receive-phase ACK management (ACKs we send). */
u8 ackr_reason; /* reason to ACK */
rxrpc_serial_t ackr_serial; /* serial of packet being ACK'd */
rxrpc_serial_t ackr_first_seq; /* first sequence number received */
rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */
rxrpc_seq_t ackr_consumed; /* Highest packet shown consumed */
rxrpc_seq_t ackr_seen; /* Highest packet shown seen */
rxrpc_seq_t ackr_highest_seq; /* Higest sequence number received */
atomic_t ackr_nr_unacked; /* Number of unacked packets */
atomic_t ackr_nr_consumed; /* Number of packets needing hard ACK */
/* RTT management */
rxrpc_serial_t rtt_serial[4]; /* Serial number of DATA or PING sent */
@ -684,8 +683,10 @@ struct rxrpc_call {
#define RXRPC_CALL_RTT_AVAIL_MASK 0xf
#define RXRPC_CALL_RTT_PEND_SHIFT 8
/* transmission-phase ACK management */
/* Transmission-phase ACK management (ACKs we've received). */
ktime_t acks_latest_ts; /* Timestamp of latest ACK received */
rxrpc_seq_t acks_first_seq; /* first sequence number received */
rxrpc_seq_t acks_prev_seq; /* Highest previousPacket received */
rxrpc_seq_t acks_lowest_nak; /* Lowest NACK in the buffer (or ==tx_hard_ack) */
rxrpc_seq_t acks_lost_top; /* tx_top at the time lost-ack ping sent */
rxrpc_serial_t acks_lost_ping; /* Serial number of probe ACK */

3
net/rxrpc/call_event.c
View File

@ -406,7 +406,8 @@ void rxrpc_process_call(struct work_struct *work)
goto recheck_state;
}
if (test_and_clear_bit(RXRPC_CALL_EV_RESEND, &call->events)) {
if (test_and_clear_bit(RXRPC_CALL_EV_RESEND, &call->events) &&
call->state != RXRPC_CALL_CLIENT_RECV_REPLY) {
rxrpc_resend(call, now);
goto recheck_state;
}

31
net/rxrpc/input.c
View File

@ -412,8 +412,8 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
enum rxrpc_call_state state;
unsigned int j, nr_subpackets;
rxrpc_serial_t serial = sp->hdr.serial, ack_serial = 0;
unsigned int j, nr_subpackets, nr_unacked = 0;
rxrpc_serial_t serial = sp->hdr.serial, ack_serial = serial;
rxrpc_seq_t seq0 = sp->hdr.seq, hard_ack;
bool immediate_ack = false, jumbo_bad = false;
u8 ack = 0;
@ -453,7 +453,6 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb)
!rxrpc_receiving_reply(call))
goto unlock;
call->ackr_prev_seq = seq0;
hard_ack = READ_ONCE(call->rx_hard_ack);
nr_subpackets = sp->nr_subpackets;
@ -534,6 +533,9 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb)
ack_serial = serial;
}
if (after(seq0, call->ackr_highest_seq))
call->ackr_highest_seq = seq0;
/* Queue the packet. We use a couple of memory barriers here as need
* to make sure that rx_top is perceived to be set after the buffer
* pointer and that the buffer pointer is set after the annotation and
@ -567,6 +569,8 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb)
sp = NULL;
}
nr_unacked++;
if (last) {
set_bit(RXRPC_CALL_RX_LAST, &call->flags);
if (!ack) {
@ -586,9 +590,14 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb)
}
call->rx_expect_next = seq + 1;
}
if (!ack)
ack_serial = serial;
}
ack:
if (atomic_add_return(nr_unacked, &call->ackr_nr_unacked) > 2 && !ack)
ack = RXRPC_ACK_IDLE;
if (ack)
rxrpc_propose_ACK(call, ack, ack_serial,
immediate_ack, true,
@ -812,7 +821,7 @@ static void rxrpc_input_soft_acks(struct rxrpc_call *call, u8 *acks,
static bool rxrpc_is_ack_valid(struct rxrpc_call *call,
rxrpc_seq_t first_pkt, rxrpc_seq_t prev_pkt)
{
rxrpc_seq_t base = READ_ONCE(call->ackr_first_seq);
rxrpc_seq_t base = READ_ONCE(call->acks_first_seq);
if (after(first_pkt, base))
return true; /* The window advanced */
@ -820,7 +829,7 @@ static bool rxrpc_is_ack_valid(struct rxrpc_call *call,
if (before(first_pkt, base))
return false; /* firstPacket regressed */
if (after_eq(prev_pkt, call->ackr_prev_seq))
if (after_eq(prev_pkt, call->acks_prev_seq))
return true; /* previousPacket hasn't regressed. */
/* Some rx implementations put a serial number in previousPacket. */
@ -933,8 +942,8 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
/* Discard any out-of-order or duplicate ACKs (outside lock). */
if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
first_soft_ack, call->ackr_first_seq,
prev_pkt, call->ackr_prev_seq);
first_soft_ack, call->acks_first_seq,
prev_pkt, call->acks_prev_seq);
return;
}
@ -949,14 +958,14 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
/* Discard any out-of-order or duplicate ACKs (inside lock). */
if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
first_soft_ack, call->ackr_first_seq,
prev_pkt, call->ackr_prev_seq);
first_soft_ack, call->acks_first_seq,
prev_pkt, call->acks_prev_seq);
goto out;
}
call->acks_latest_ts = skb->tstamp;
call->ackr_first_seq = first_soft_ack;
call->ackr_prev_seq = prev_pkt;
call->acks_first_seq = first_soft_ack;
call->acks_prev_seq = prev_pkt;
/* Parse rwind and mtu sizes if provided. */
if (buf.info.rxMTU)

20
net/rxrpc/output.c
View File

@ -74,11 +74,18 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
u8 reason)
{
rxrpc_serial_t serial;
unsigned int tmp;
rxrpc_seq_t hard_ack, top, seq;
int ix;
u32 mtu, jmax;
u8 *ackp = pkt->acks;
tmp = atomic_xchg(&call->ackr_nr_unacked, 0);
tmp |= atomic_xchg(&call->ackr_nr_consumed, 0);
if (!tmp && (reason == RXRPC_ACK_DELAY ||
reason == RXRPC_ACK_IDLE))
return 0;
/* Barrier against rxrpc_input_data(). */
serial = call->ackr_serial;
hard_ack = READ_ONCE(call->rx_hard_ack);
@ -89,7 +96,7 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
pkt->ack.bufferSpace = htons(8);
pkt->ack.maxSkew = htons(0);
pkt->ack.firstPacket = htonl(hard_ack + 1);
pkt->ack.previousPacket = htonl(call->ackr_prev_seq);
pkt->ack.previousPacket = htonl(call->ackr_highest_seq);
pkt->ack.serial = htonl(serial);
pkt->ack.reason = reason;
pkt->ack.nAcks = top - hard_ack;
@ -223,6 +230,10 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
n = rxrpc_fill_out_ack(conn, call, pkt, &hard_ack, &top, reason);
spin_unlock_bh(&call->lock);
if (n == 0) {
kfree(pkt);
return 0;
}
iov[0].iov_base = pkt;
iov[0].iov_len = sizeof(pkt->whdr) + sizeof(pkt->ack) + n;
@ -259,13 +270,6 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
ntohl(pkt->ack.serial),
false, true,
rxrpc_propose_ack_retry_tx);
} else {
spin_lock_bh(&call->lock);
if (after(hard_ack, call->ackr_consumed))
call->ackr_consumed = hard_ack;
if (after(top, call->ackr_seen))
call->ackr_seen = top;
spin_unlock_bh(&call->lock);
}
rxrpc_set_keepalive(call);

8
net/rxrpc/recvmsg.c
View File

@ -260,11 +260,9 @@ static void rxrpc_rotate_rx_window(struct rxrpc_call *call)
rxrpc_end_rx_phase(call, serial);
} else {
/* Check to see if there's an ACK that needs sending. */
if (after_eq(hard_ack, call->ackr_consumed + 2) ||
after_eq(top, call->ackr_seen + 2) ||
(hard_ack == top && after(hard_ack, call->ackr_consumed)))
rxrpc_propose_ACK(call, RXRPC_ACK_DELAY, serial,
true, true,
if (atomic_inc_return(&call->ackr_nr_consumed) > 2)
rxrpc_propose_ACK(call, RXRPC_ACK_IDLE, serial,
true, false,
rxrpc_propose_ack_rotate_rx);
if (call->ackr_reason && call->ackr_reason != RXRPC_ACK_DELAY)
rxrpc_send_ack_packet(call, false, NULL);

4
net/rxrpc/sysctl.c
View File

@ -12,7 +12,7 @@
static struct ctl_table_header *rxrpc_sysctl_reg_table;
static const unsigned int four = 4;
static const unsigned int thirtytwo = 32;
static const unsigned int max_backlog = RXRPC_BACKLOG_MAX - 1;
static const unsigned int n_65535 = 65535;
static const unsigned int n_max_acks = RXRPC_RXTX_BUFF_SIZE - 1;
static const unsigned long one_jiffy = 1;
@ -89,7 +89,7 @@ static struct ctl_table rxrpc_sysctl_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *)&four,
.extra2 = (void *)&thirtytwo,
.extra2 = (void *)&max_backlog,
},
{
.procname = "rx_window_size",

46
net/smc/af_smc.c
View File

@ -1584,11 +1584,11 @@ static int smc_connect(struct socket *sock, struct sockaddr *addr,
if (rc && rc != -EINPROGRESS)
goto out;
sock_hold(&smc->sk); /* sock put in passive closing */
if (smc->use_fallback) {
sock->state = rc ? SS_CONNECTING : SS_CONNECTED;
goto out;
}
sock_hold(&smc->sk); /* sock put in passive closing */
if (flags & O_NONBLOCK) {
if (queue_work(smc_hs_wq, &smc->connect_work))
smc->connect_nonblock = 1;
@ -2118,13 +2118,13 @@ static int smc_listen_rdma_reg(struct smc_sock *new_smc, bool local_first)
return 0;
}
static void smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
struct smc_clc_msg_proposal *pclc,
struct smc_init_info *ini)
static int smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
struct smc_clc_msg_proposal *pclc,
struct smc_init_info *ini)
{
struct smc_clc_v2_extension *smc_v2_ext;
u8 smcr_version;
int rc;
int rc = 0;
if (!(ini->smcr_version & SMC_V2) || !smcr_indicated(ini->smc_type_v2))
goto not_found;
@ -2142,26 +2142,31 @@ static void smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
ini->smcrv2.saddr = new_smc->clcsock->sk->sk_rcv_saddr;
ini->smcrv2.daddr = smc_ib_gid_to_ipv4(smc_v2_ext->roce);
rc = smc_find_rdma_device(new_smc, ini);
if (rc) {
smc_find_ism_store_rc(rc, ini);
if (rc)
goto not_found;
}
if (!ini->smcrv2.uses_gateway)
memcpy(ini->smcrv2.nexthop_mac, pclc->lcl.mac, ETH_ALEN);
smcr_version = ini->smcr_version;
ini->smcr_version = SMC_V2;
rc = smc_listen_rdma_init(new_smc, ini);
if (!rc)
rc = smc_listen_rdma_reg(new_smc, ini->first_contact_local);
if (!rc)
return;
ini->smcr_version = smcr_version;
smc_find_ism_store_rc(rc, ini);
if (rc) {
ini->smcr_version = smcr_version;
goto not_found;
}
rc = smc_listen_rdma_reg(new_smc, ini->first_contact_local);
if (rc) {
ini->smcr_version = smcr_version;
goto not_found;
}
return 0;
not_found:
rc = rc ?: SMC_CLC_DECL_NOSMCDEV;
ini->smcr_version &= ~SMC_V2;
ini->check_smcrv2 = false;
return rc;
}
static int smc_find_rdma_v1_device_serv(struct smc_sock *new_smc,
@ -2194,6 +2199,7 @@ static int smc_listen_find_device(struct smc_sock *new_smc,
struct smc_init_info *ini)
{
int prfx_rc;
int rc;
/* check for ISM device matching V2 proposed device */
smc_find_ism_v2_device_serv(new_smc, pclc, ini);
@ -2221,14 +2227,18 @@ static int smc_listen_find_device(struct smc_sock *new_smc,
return ini->rc ?: SMC_CLC_DECL_NOSMCDDEV;
/* check if RDMA V2 is available */
smc_find_rdma_v2_device_serv(new_smc, pclc, ini);
if (ini->smcrv2.ib_dev_v2)
rc = smc_find_rdma_v2_device_serv(new_smc, pclc, ini);
if (!rc)
return 0;
/* skip V1 check if V2 is unavailable for non-Device reason */
if (rc != SMC_CLC_DECL_NOSMCDEV &&
rc != SMC_CLC_DECL_NOSMCRDEV &&
rc != SMC_CLC_DECL_NOSMCDDEV)
return rc;
/* check if RDMA V1 is available */
if (!prfx_rc) {
int rc;
rc = smc_find_rdma_v1_device_serv(new_smc, pclc, ini);
smc_find_ism_store_rc(rc, ini);
return (!rc) ? 0 : ini->rc;