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Message-Id: <0264268d44b3dedc8d87ac8816cb0c3e2735bc2b.1465829626.git.sowmini.varadhan@oracle.com>
Date: Mon, 13 Jun 2016 09:44:30 -0700
From: Sowmini Varadhan <sowmini.varadhan@...cle.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, rds-devel@....oracle.com,
ajaykumar.hotchandani@...cle.com, santosh.shilimkar@...cle.com,
sowmini.varadhan@...cle.com
Subject: [PATCH net-next 05/17] RDS: Add rds_send_path_reset()
rds_send_path_reset() is the path specific version of rds_send_reset()
intended for MP capable callers.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@...cle.com>
---
net/rds/send.c | 39 ++++++++++++++++++++++-----------------
1 files changed, 22 insertions(+), 17 deletions(-)
diff --git a/net/rds/send.c b/net/rds/send.c
index a3b3b35..bfb3e05 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -63,14 +63,14 @@ static void rds_send_remove_from_sock(struct list_head *messages, int status);
* Reset the send state. Callers must ensure that this doesn't race with
* rds_send_xmit().
*/
-void rds_send_reset(struct rds_connection *conn)
+static void rds_send_path_reset(struct rds_conn_path *cp)
{
struct rds_message *rm, *tmp;
unsigned long flags;
- if (conn->c_xmit_rm) {
- rm = conn->c_xmit_rm;
- conn->c_xmit_rm = NULL;
+ if (cp->cp_xmit_rm) {
+ rm = cp->cp_xmit_rm;
+ cp->cp_xmit_rm = NULL;
/* Tell the user the RDMA op is no longer mapped by the
* transport. This isn't entirely true (it's flushed out
* independently) but as the connection is down, there's
@@ -79,26 +79,31 @@ void rds_send_reset(struct rds_connection *conn)
rds_message_put(rm);
}
- conn->c_xmit_sg = 0;
- conn->c_xmit_hdr_off = 0;
- conn->c_xmit_data_off = 0;
- conn->c_xmit_atomic_sent = 0;
- conn->c_xmit_rdma_sent = 0;
- conn->c_xmit_data_sent = 0;
+ cp->cp_xmit_sg = 0;
+ cp->cp_xmit_hdr_off = 0;
+ cp->cp_xmit_data_off = 0;
+ cp->cp_xmit_atomic_sent = 0;
+ cp->cp_xmit_rdma_sent = 0;
+ cp->cp_xmit_data_sent = 0;
- conn->c_map_queued = 0;
+ cp->cp_conn->c_map_queued = 0;
- conn->c_unacked_packets = rds_sysctl_max_unacked_packets;
- conn->c_unacked_bytes = rds_sysctl_max_unacked_bytes;
+ cp->cp_unacked_packets = rds_sysctl_max_unacked_packets;
+ cp->cp_unacked_bytes = rds_sysctl_max_unacked_bytes;
/* Mark messages as retransmissions, and move them to the send q */
- spin_lock_irqsave(&conn->c_lock, flags);
- list_for_each_entry_safe(rm, tmp, &conn->c_retrans, m_conn_item) {
+ spin_lock_irqsave(&cp->cp_lock, flags);
+ list_for_each_entry_safe(rm, tmp, &cp->cp_retrans, m_conn_item) {
set_bit(RDS_MSG_ACK_REQUIRED, &rm->m_flags);
set_bit(RDS_MSG_RETRANSMITTED, &rm->m_flags);
}
- list_splice_init(&conn->c_retrans, &conn->c_send_queue);
- spin_unlock_irqrestore(&conn->c_lock, flags);
+ list_splice_init(&cp->cp_retrans, &cp->cp_send_queue);
+ spin_unlock_irqrestore(&cp->cp_lock, flags);
+}
+
+void rds_send_reset(struct rds_connection *conn)
+{
+ rds_send_path_reset(&conn->c_path[0]);
}
EXPORT_SYMBOL_GPL(rds_send_reset);
--
1.7.1
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