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SRP_CRED_REQ autodetection is now disabled by default.

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2026 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2010-08-31 06:30:59 +00:00
parent 798dc8a128
commit edac418f66
2 changed files with 6 additions and 4 deletions
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3
srpt/README
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@@ -74,10 +74,11 @@ The ib_srpt kernel module supports the following parameters:
to 65536 bytes, which is sufficient to use the full bandwidth of low-latency
HCAs. Increasing this value may decrease latency for applications
transferring large amounts of data at once.
* srpt_autodetect_cred_req (y or n, default y)
* srpt_autodetect_cred_req (y or n, default n)
Whether or not to autodetect initiator support for SRP_CRED_REQ (initiators
with Linux kernel 2.6.37 or later only). The use of SRP_CRED_REQ allows
ib_srpt to process workloads with large I/O depths more efficiently.
Note: enabling this mode causes the Windows SRP initiator to stop working.
* srpt_srq_size (number, default 4095)
ib_srpt uses a shared receive queue (SRQ) for processing incoming SRP
requests. This number may have to be increased when a large number of

7
srpt/src/ib_srpt.c
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@@ -130,11 +130,12 @@ module_param(srpt_sq_size, int, 0444);
MODULE_PARM_DESC(srpt_sq_size,
"Per-channel send queue (SQ) size.");
#if defined(RHEL_MAJOR) && RHEL_MAJOR -0 <= 5
static int srpt_autodetect_cred_req = true;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 27) \
|| defined(RHEL_MAJOR) && RHEL_MAJOR -0 <= 5
static int srpt_autodetect_cred_req;
module_param(srpt_autodetect_cred_req, int, 0444);
#else
static bool srpt_autodetect_cred_req = true;
static bool srpt_autodetect_cred_req;
module_param(srpt_autodetect_cred_req, bool, 0444);
#endif
MODULE_PARM_DESC(srpt_autodetect_cred_req,