Remove unused active bonding and iwarp code

This patch removes the dead code related to active bonding and
iWarp from RDS modules.

Orabug: 27905986

Reviewed-by: Avinash Repaka<[email protected]>
Signed-off-by: Sudhakar Dindukurti <[email protected]>
Signed-off-by: Somasundaram Krishnasamy <[email protected]>

Author: Sudhakar Dindukurti

net/rds/connection.c

@@ -928,19 +928,6 @@ static char *conn_drop_reasons[] = {
 	[DR_IB_ACTIVE_BOND_FAILOVER]	= "active bonding failover",
 	[DR_IB_LOOPBACK_CONN_DROP]	= "corresponding loopback conn drop",
 	[DR_IB_ACTIVE_BOND_FAILBACK]	= "active bonding failback",
-	[DR_IW_QP_EVENT]		= "qp_event",
-	[DR_IW_REQ_WHILE_CONNECTING]	= "incoming REQ in connecting state",
-	[DR_IW_PAS_SETUP_QP_FAIL]	= "passive setup_qp failure",
-	[DR_IW_RDMA_ACCEPT_FAIL]	= "rdma_accept failure",
-	[DR_IW_ACT_SETUP_QP_FAIL]	= "active setup_qp failure",
-	[DR_IW_RDMA_CONNECT_FAIL]	= "rdma_connect failure",
-	[DR_IW_POST_RECV_FAIL]		= "post_recv failure",
-	[DR_IW_SEND_ACK_FAIL]		= "send_ack failure",
-	[DR_IW_HEADER_MISSING]		= "no header in incoming msg",
-	[DR_IW_HEADER_CORRUPTED]	= "corrupted header in incoming msg",
-	[DR_IW_FRAG_HEADER_MISMATCH]	= "fragment header mismatch",
-	[DR_IW_RECV_COMP_ERR]		= "recv completion error",
-	[DR_IW_SEND_COMP_ERR]		= "send completion error",
 	[DR_TCP_STATE_CLOSE]		= "sk_state to TCP_CLOSE",
 	[DR_TCP_SEND_FAIL]		= "tcp_send failure",
 };

net/rds/ib_sysctl.c

@@ -61,23 +61,8 @@ static unsigned long rds_ib_sysctl_max_unsig_wr_max = 64;
  */
 
 unsigned int rds_ib_sysctl_flow_control = 0;
-unsigned int rds_ib_sysctl_active_bonding = 1;
 unsigned int rds_ib_sysctl_disable_unmap_fmr_cpu; /* = 0 */
 
-/*
- * sysctl to trigger active bonding when set to 1
- * by the network startup script *after* all IB
- * devices have been configured to trigger asap
- * the active bonding.
- * If not triggered by this sysctl, a max timeout
- * will trigger it!
- */
-unsigned int rds_ib_sysctl_trigger_active_bonding; /* = 0 */
-
-unsigned long rds_ib_active_bonding_failback_min_jiffies = HZ;
-unsigned long rds_ib_active_bonding_failback_max_jiffies = HZ * 100;
-unsigned long rds_ib_sysctl_active_bonding_failback_jiffies = HZ * 10;
-
 static struct ctl_table rds_ib_sysctl_table[] = {
 	{
 		.procname       = "max_send_wr",
@@ -120,29 +105,6 @@ static struct ctl_table rds_ib_sysctl_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
-	{
-		.procname       = "active_bonding",
-		.data           = &rds_ib_sysctl_active_bonding,
-		.maxlen         = sizeof(rds_ib_sysctl_active_bonding),
-		.mode           = 0644,
-		.proc_handler   = &proc_dointvec,
-	},
-	{
-		.procname       = "trigger_active_bonding",
-		.data           = &rds_ib_sysctl_trigger_active_bonding,
-		.maxlen         = sizeof(rds_ib_sysctl_trigger_active_bonding),
-		.mode           = 0644,
-		.proc_handler   = &proc_dointvec,
-	},
-	{
-		.procname       = "active_bonding_failback_ms",
-		.data           = &rds_ib_sysctl_active_bonding_failback_jiffies,
-		.maxlen         = sizeof(rds_ib_sysctl_active_bonding_failback_jiffies),
-		.mode           = 0644,
-		.proc_handler   = proc_doulongvec_ms_jiffies_minmax,
-		.extra1		= &rds_ib_active_bonding_failback_min_jiffies,
-		.extra2		= &rds_ib_active_bonding_failback_max_jiffies,
-	},
 	{
 		.procname       = "disable_unmap_fmr_cpu_assignment",
 		.data           = &rds_ib_sysctl_disable_unmap_fmr_cpu,

net/rds/rds.h

@@ -203,22 +203,6 @@ enum rds_conn_drop_src {
 	DR_IB_LOOPBACK_CONN_DROP,
 	DR_IB_ACTIVE_BOND_FAILBACK,
 
-	/* iWARP */
-	DR_IW_QP_EVENT,
-	DR_IW_REQ_WHILE_CONNECTING,
-	DR_IW_PAS_SETUP_QP_FAIL,
-	DR_IW_RDMA_ACCEPT_FAIL,
-	DR_IW_ACT_SETUP_QP_FAIL,
-	DR_IW_RDMA_CONNECT_FAIL,
-
-	DR_IW_POST_RECV_FAIL,
-	DR_IW_SEND_ACK_FAIL,
-	DR_IW_HEADER_MISSING,
-	DR_IW_HEADER_CORRUPTED,
-	DR_IW_FRAG_HEADER_MISMATCH,
-	DR_IW_RECV_COMP_ERR,
-	DR_IW_SEND_COMP_ERR,
-
 	/* TCP */
 	DR_TCP_STATE_CLOSE,
 	DR_TCP_SEND_FAIL,