From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/net/rds/send.c | 41 ++++++++++++++++++++++++++++-------------
1 files changed, 28 insertions(+), 13 deletions(-)
diff --git a/kernel/net/rds/send.c b/kernel/net/rds/send.c
index 26e2c23..985d0b7 100644
--- a/kernel/net/rds/send.c
+++ b/kernel/net/rds/send.c
@@ -145,6 +145,7 @@
LIST_HEAD(to_be_dropped);
int batch_count;
unsigned long send_gen = 0;
+ int same_rm = 0;
restart:
batch_count = 0;
@@ -199,6 +200,17 @@
while (1) {
rm = cp->cp_xmit_rm;
+
+ if (!rm) {
+ same_rm = 0;
+ } else {
+ same_rm++;
+ if (same_rm >= 4096) {
+ rds_stats_inc(s_send_stuck_rm);
+ ret = -EAGAIN;
+ break;
+ }
+ }
/*
* If between sending messages, we can send a pending congestion
@@ -491,14 +503,12 @@
struct rm_rdma_op *ro;
struct rds_notifier *notifier;
unsigned long flags;
- unsigned int notify = 0;
spin_lock_irqsave(&rm->m_rs_lock, flags);
- notify = rm->rdma.op_notify | rm->data.op_notify;
ro = &rm->rdma;
if (test_bit(RDS_MSG_ON_SOCK, &rm->m_flags) &&
- ro->op_active && notify && ro->op_notifier) {
+ ro->op_active && ro->op_notify && ro->op_notifier) {
notifier = ro->op_notifier;
rs = rm->m_rs;
sock_hold(rds_rs_to_sk(rs));
@@ -886,6 +896,9 @@
bool zcopy_cookie = false;
struct rds_iov_vector *iov, *tmp_iov;
+ if (num_sgs < 0)
+ return -EINVAL;
+
for_each_cmsghdr(cmsg, msg) {
if (!CMSG_OK(msg, cmsg))
return -EINVAL;
@@ -921,7 +934,7 @@
case RDS_CMSG_ZCOPY_COOKIE:
zcopy_cookie = true;
- /* fall through */
+ fallthrough;
case RDS_CMSG_RDMA_DEST:
case RDS_CMSG_RDMA_MAP:
@@ -1104,7 +1117,7 @@
size_t total_payload_len = payload_len, rdma_payload_len = 0;
bool zcopy = ((msg->msg_flags & MSG_ZEROCOPY) &&
sock_flag(rds_rs_to_sk(rs), SOCK_ZEROCOPY));
- int num_sgs = ceil(payload_len, PAGE_SIZE);
+ int num_sgs = DIV_ROUND_UP(payload_len, PAGE_SIZE);
int namelen;
struct rds_iov_vector_arr vct;
int ind;
@@ -1131,7 +1144,7 @@
case AF_INET:
if (usin->sin_addr.s_addr == htonl(INADDR_ANY) ||
usin->sin_addr.s_addr == htonl(INADDR_BROADCAST) ||
- IN_MULTICAST(ntohl(usin->sin_addr.s_addr))) {
+ ipv4_is_multicast(usin->sin_addr.s_addr)) {
ret = -EINVAL;
goto out;
}
@@ -1162,7 +1175,7 @@
addr4 = sin6->sin6_addr.s6_addr32[3];
if (addr4 == htonl(INADDR_ANY) ||
addr4 == htonl(INADDR_BROADCAST) ||
- IN_MULTICAST(ntohl(addr4))) {
+ ipv4_is_multicast(addr4)) {
ret = -EINVAL;
goto out;
}
@@ -1262,8 +1275,8 @@
/* Attach data to the rm */
if (payload_len) {
rm->data.op_sg = rds_message_alloc_sgs(rm, num_sgs);
- if (!rm->data.op_sg) {
- ret = -ENOMEM;
+ if (IS_ERR(rm->data.op_sg)) {
+ ret = PTR_ERR(rm->data.op_sg);
goto out;
}
ret = rds_message_copy_from_user(rm, &msg->msg_iter, zcopy);
@@ -1276,12 +1289,13 @@
/* rds_conn_create has a spinlock that runs with IRQ off.
* Caching the conn in the socket helps a lot. */
- if (rs->rs_conn && ipv6_addr_equal(&rs->rs_conn->c_faddr, &daddr))
+ if (rs->rs_conn && ipv6_addr_equal(&rs->rs_conn->c_faddr, &daddr) &&
+ rs->rs_tos == rs->rs_conn->c_tos) {
conn = rs->rs_conn;
- else {
+ } else {
conn = rds_conn_create_outgoing(sock_net(sock->sk),
&rs->rs_bound_addr, &daddr,
- rs->rs_transport,
+ rs->rs_transport, rs->rs_tos,
sock->sk->sk_allocation,
scope_id);
if (IS_ERR(conn)) {
@@ -1326,7 +1340,8 @@
goto out;
}
- rds_conn_path_connect_if_down(cpath);
+ if (rds_conn_path_down(cpath))
+ rds_check_all_paths(conn);
ret = rds_cong_wait(conn->c_fcong, dport, nonblock, rs);
if (ret) {
--
Gitblit v1.6.2