[ewg] [PATCH OFED-152] ib/ehca: bitmaks handling for lock_hcalls

[Alexander Schmidt]

Hi Vlad,

please add this fix for OFED-1.5.2, thank you!

Signed-off-by: ALexander Schmidt <alexs at linux.vnet.ibm.com>

Index: ofa_kernel-1.5.2/kernel_patches/fixes/ehca-0150-lock_hcalls_bitmask.patch
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ ofa_kernel-1.5.2/kernel_patches/fixes/ehca-0150-lock_hcalls_bitmask.patch	2010-06-11 04:50:46.000000000 -0400
@@ -0,0 +1,22 @@
+Fix reading capability bit from device capabilities.
+
+Signed-off-by: Alexander Schmidt <alexs at linux.vnet.ibm.com>
+---
+
+ drivers/infiniband/hw/ehca/ehca_main.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+Index: ofa_kernel-1.5.2/drivers/infiniband/hw/ehca/ehca_main.c
+===================================================================
+--- ofa_kernel-1.5.2.orig/drivers/infiniband/hw/ehca/ehca_main.c	2010-06-11 04:03:56.000000000 -0400
++++ ofa_kernel-1.5.2/drivers/infiniband/hw/ehca/ehca_main.c	2010-06-11 04:47:47.000000000 -0400
+@@ -359,7 +359,8 @@
+ 	 * a firmware property, so it's valid across all adapters
+ 	 */
+ 	if (ehca_lock_hcalls == -1)
+-		ehca_lock_hcalls = !(shca->hca_cap & HCA_CAP_H_ALLOC_RES_SYNC);
++		ehca_lock_hcalls = !EHCA_BMASK_GET(HCA_CAP_H_ALLOC_RES_SYNC,
++					shca->hca_cap);
+ 
+ 	/* translate supported MR page sizes; always support 4K */
+ 	shca->hca_cap_mr_pgsize = EHCA_PAGESIZE;