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/ib.c | 77 ++++++++++++++++++++++++--------------
1 files changed, 49 insertions(+), 28 deletions(-)
diff --git a/kernel/net/rds/ib.c b/kernel/net/rds/ib.c
index ba33790..24c9a90 100644
--- a/kernel/net/rds/ib.c
+++ b/kernel/net/rds/ib.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2006, 2019 Oracle and/or its affiliates. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@@ -87,7 +87,7 @@
spin_lock_irqsave(&rds_ibdev->spinlock, flags);
list_for_each_entry(ic, &rds_ibdev->conn_list, ib_node)
- rds_conn_drop(ic->conn);
+ rds_conn_path_drop(&ic->conn->c_path[0], true);
spin_unlock_irqrestore(&rds_ibdev->spinlock, flags);
}
@@ -125,19 +125,23 @@
queue_work(rds_wq, &rds_ibdev->free_work);
}
-static void rds_ib_add_one(struct ib_device *device)
+static int rds_ib_add_one(struct ib_device *device)
{
struct rds_ib_device *rds_ibdev;
- bool has_fr, has_fmr;
+ int ret;
/* Only handle IB (no iWARP) devices */
if (device->node_type != RDMA_NODE_IB_CA)
- return;
+ return -EOPNOTSUPP;
+
+ /* Device must support FRWR */
+ if (!(device->attrs.device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS))
+ return -EOPNOTSUPP;
rds_ibdev = kzalloc_node(sizeof(struct rds_ib_device), GFP_KERNEL,
ibdev_to_node(device));
if (!rds_ibdev)
- return;
+ return -ENOMEM;
spin_lock_init(&rds_ibdev->spinlock);
refcount_set(&rds_ibdev->refcount, 1);
@@ -149,13 +153,14 @@
rds_ibdev->max_wrs = device->attrs.max_qp_wr;
rds_ibdev->max_sge = min(device->attrs.max_send_sge, RDS_IB_MAX_SGE);
- has_fr = (device->attrs.device_cap_flags &
- IB_DEVICE_MEM_MGT_EXTENSIONS);
- has_fmr = (device->alloc_fmr && device->dealloc_fmr &&
- device->map_phys_fmr && device->unmap_fmr);
- rds_ibdev->use_fastreg = (has_fr && !has_fmr);
+ rds_ibdev->odp_capable =
+ !!(device->attrs.device_cap_flags &
+ IB_DEVICE_ON_DEMAND_PAGING) &&
+ !!(device->attrs.odp_caps.per_transport_caps.rc_odp_caps &
+ IB_ODP_SUPPORT_WRITE) &&
+ !!(device->attrs.odp_caps.per_transport_caps.rc_odp_caps &
+ IB_ODP_SUPPORT_READ);
- rds_ibdev->fmr_max_remaps = device->attrs.max_map_per_fmr?: 32;
rds_ibdev->max_1m_mrs = device->attrs.max_mr ?
min_t(unsigned int, (device->attrs.max_mr / 2),
rds_ib_mr_1m_pool_size) : rds_ib_mr_1m_pool_size;
@@ -173,12 +178,14 @@
if (!rds_ibdev->vector_load) {
pr_err("RDS/IB: %s failed to allocate vector memory\n",
__func__);
+ ret = -ENOMEM;
goto put_dev;
}
rds_ibdev->dev = device;
rds_ibdev->pd = ib_alloc_pd(device, 0);
if (IS_ERR(rds_ibdev->pd)) {
+ ret = PTR_ERR(rds_ibdev->pd);
rds_ibdev->pd = NULL;
goto put_dev;
}
@@ -186,6 +193,7 @@
rds_ibdev->mr_1m_pool =
rds_ib_create_mr_pool(rds_ibdev, RDS_IB_MR_1M_POOL);
if (IS_ERR(rds_ibdev->mr_1m_pool)) {
+ ret = PTR_ERR(rds_ibdev->mr_1m_pool);
rds_ibdev->mr_1m_pool = NULL;
goto put_dev;
}
@@ -193,18 +201,16 @@
rds_ibdev->mr_8k_pool =
rds_ib_create_mr_pool(rds_ibdev, RDS_IB_MR_8K_POOL);
if (IS_ERR(rds_ibdev->mr_8k_pool)) {
+ ret = PTR_ERR(rds_ibdev->mr_8k_pool);
rds_ibdev->mr_8k_pool = NULL;
goto put_dev;
}
- rdsdebug("RDS/IB: max_mr = %d, max_wrs = %d, max_sge = %d, fmr_max_remaps = %d, max_1m_mrs = %d, max_8k_mrs = %d\n",
- device->attrs.max_fmr, rds_ibdev->max_wrs, rds_ibdev->max_sge,
- rds_ibdev->fmr_max_remaps, rds_ibdev->max_1m_mrs,
- rds_ibdev->max_8k_mrs);
+ rdsdebug("RDS/IB: max_mr = %d, max_wrs = %d, max_sge = %d, max_1m_mrs = %d, max_8k_mrs = %d\n",
+ device->attrs.max_mr, rds_ibdev->max_wrs, rds_ibdev->max_sge,
+ rds_ibdev->max_1m_mrs, rds_ibdev->max_8k_mrs);
- pr_info("RDS/IB: %s: %s supported and preferred\n",
- device->name,
- rds_ibdev->use_fastreg ? "FRMR" : "FMR");
+ pr_info("RDS/IB: %s: added\n", device->name);
down_write(&rds_ib_devices_lock);
list_add_tail_rcu(&rds_ibdev->list, &rds_ib_devices);
@@ -212,12 +218,13 @@
refcount_inc(&rds_ibdev->refcount);
ib_set_client_data(device, &rds_ib_client, rds_ibdev);
- refcount_inc(&rds_ibdev->refcount);
rds_ib_nodev_connect();
+ return 0;
put_dev:
rds_ib_dev_put(rds_ibdev);
+ return ret;
}
/*
@@ -259,9 +266,6 @@
{
struct rds_ib_device *rds_ibdev = client_data;
- if (!rds_ibdev)
- return;
-
rds_ib_dev_shutdown(rds_ibdev);
/* stop connection attempts from getting a reference to this device. */
@@ -291,7 +295,7 @@
void *buffer)
{
struct rds_info_rdma_connection *iinfo = buffer;
- struct rds_ib_connection *ic;
+ struct rds_ib_connection *ic = conn->c_transport_data;
/* We will only ever look at IB transports */
if (conn->c_trans != &rds_ib_transport)
@@ -301,13 +305,15 @@
iinfo->src_addr = conn->c_laddr.s6_addr32[3];
iinfo->dst_addr = conn->c_faddr.s6_addr32[3];
+ if (ic) {
+ iinfo->tos = conn->c_tos;
+ iinfo->sl = ic->i_sl;
+ }
memset(&iinfo->src_gid, 0, sizeof(iinfo->src_gid));
memset(&iinfo->dst_gid, 0, sizeof(iinfo->dst_gid));
if (rds_conn_state(conn) == RDS_CONN_UP) {
struct rds_ib_device *rds_ibdev;
-
- ic = conn->c_transport_data;
rdma_read_gids(ic->i_cm_id, (union ib_gid *)&iinfo->src_gid,
(union ib_gid *)&iinfo->dst_gid);
@@ -317,6 +323,7 @@
iinfo->max_recv_wr = ic->i_recv_ring.w_nr;
iinfo->max_send_sge = rds_ibdev->max_sge;
rds_ib_get_mr_info(rds_ibdev, iinfo);
+ iinfo->cache_allocs = atomic_read(&ic->i_cache_allocs);
}
return 1;
}
@@ -327,7 +334,7 @@
void *buffer)
{
struct rds6_info_rdma_connection *iinfo6 = buffer;
- struct rds_ib_connection *ic;
+ struct rds_ib_connection *ic = conn->c_transport_data;
/* We will only ever look at IB transports */
if (conn->c_trans != &rds_ib_transport)
@@ -335,6 +342,10 @@
iinfo6->src_addr = conn->c_laddr;
iinfo6->dst_addr = conn->c_faddr;
+ if (ic) {
+ iinfo6->tos = conn->c_tos;
+ iinfo6->sl = ic->i_sl;
+ }
memset(&iinfo6->src_gid, 0, sizeof(iinfo6->src_gid));
memset(&iinfo6->dst_gid, 0, sizeof(iinfo6->dst_gid));
@@ -342,7 +353,6 @@
if (rds_conn_state(conn) == RDS_CONN_UP) {
struct rds_ib_device *rds_ibdev;
- ic = conn->c_transport_data;
rdma_read_gids(ic->i_cm_id, (union ib_gid *)&iinfo6->src_gid,
(union ib_gid *)&iinfo6->dst_gid);
rds_ibdev = ic->rds_ibdev;
@@ -350,6 +360,7 @@
iinfo6->max_recv_wr = ic->i_recv_ring.w_nr;
iinfo6->max_send_sge = rds_ibdev->max_sge;
rds6_ib_get_mr_info(rds_ibdev, iinfo6);
+ iinfo6->cache_allocs = atomic_read(&ic->i_cache_allocs);
}
return 1;
}
@@ -514,6 +525,15 @@
rds_ib_mr_exit();
}
+static u8 rds_ib_get_tos_map(u8 tos)
+{
+ /* 1:1 user to transport map for RDMA transport.
+ * In future, if custom map is desired, hook can export
+ * user configurable map.
+ */
+ return tos;
+}
+
struct rds_transport rds_ib_transport = {
.laddr_check = rds_ib_laddr_check,
.xmit_path_complete = rds_ib_xmit_path_complete,
@@ -536,6 +556,7 @@
.sync_mr = rds_ib_sync_mr,
.free_mr = rds_ib_free_mr,
.flush_mrs = rds_ib_flush_mrs,
+ .get_tos_map = rds_ib_get_tos_map,
.t_owner = THIS_MODULE,
.t_name = "infiniband",
.t_unloading = rds_ib_is_unloading,
--
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