From: Bryan O'Sullivan <bos@pathscale.com>
Date: Fri, 25 Aug 2006 18:24:45 +0000 (-0700)
Subject: IB/ipath: allow SMA to be disabled
X-Git-Tag: v2.6.19-rc1~1293^2~34
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d821f02a6ebed97e35e0bc7575452cfc6f9073cb;p=linux-2.6

IB/ipath: allow SMA to be disabled

This is useful for testing purposes.

Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index b9be0fd2ed..fbda773971 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -107,6 +107,10 @@ module_param_named(max_srq_wrs, ib_ipath_max_srq_wrs,
 		   uint, S_IWUSR | S_IRUGO);
 MODULE_PARM_DESC(max_srq_wrs, "Maximum number of SRQ WRs support");
 
+static unsigned int ib_ipath_disable_sma;
+module_param_named(disable_sma, ib_ipath_disable_sma, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(ib_ipath_disable_sma, "Disable the SMA");
+
 const int ib_ipath_state_ops[IB_QPS_ERR + 1] = {
 	[IB_QPS_RESET] = 0,
 	[IB_QPS_INIT] = IPATH_POST_RECV_OK,
@@ -354,6 +358,9 @@ static void ipath_qp_rcv(struct ipath_ibdev *dev,
 	switch (qp->ibqp.qp_type) {
 	case IB_QPT_SMI:
 	case IB_QPT_GSI:
+		if (ib_ipath_disable_sma)
+			break;
+		/* FALLTHROUGH */
 	case IB_QPT_UD:
 		ipath_ud_rcv(dev, hdr, has_grh, data, tlen, qp);
 		break;