[Openib-windows] [PATCH] MTHCA: Fix memory registration for x86

[Fab Tillier]

Hi Leo,

Here's a patch that fixes memory registration on 32-bit platforms.  Virtual
addresses in Windows are sign extended when extended to 64-bits, but the
code currently truncates the input virtual address to 32-bits and then does
an unsigned extension to 64-bits.

This patch fixes SRP protection errors on the receive queue when running on
32-bit platforms.

- Fab

Index: base/hw/mthca/kernel/hca_memory.c
===================================================================
--- base/hw/mthca/kernel/hca_memory.c	(revision 469)
+++ base/hw/mthca/kernel/hca_memory.c	(working copy)
@@ -88,7 +88,7 @@
 	// register mr 
 	mr_p = ibv_reg_mr(ib_pd_p,
map_qp_ibal_acl(p_mr_create->access_ctrl), 
 		p_mr_create->vaddr, p_mr_create->length, 
-		(uint64_t)(ULONG_PTR)(void*)p_mr_create->vaddr, um_call );
+		(uint64_t)p_mr_create->vaddr, um_call );
 	if (IS_ERR(mr_p)) {
 		err = PTR_ERR(mr_p);
 		HCA_PRINT(TRACE_LEVEL_ERROR, HCA_DBG_MEMORY,

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