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iw_cxgb4: Pass qid range to user space driver

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Enhances the t4_dev_status_page to pass the qid start and size
attributes from iw_cxgb4 to libcxgb4.
Bump the ABI Version to 3 -> To allow libcxgb4 to detect old drivers and
revert to the old way of computing the qid ranges.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Hariprasad S 2015-12-11 13:02:01 +05:30 committed by Doug Ledford
parent 0d6ed314de
commit c5dfb000b9
3 changed files with 12 additions and 1 deletions
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4
drivers/infiniband/hw/cxgb4/device.c
View File

@ -850,6 +850,10 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
}
rdev->status_page = (struct t4_dev_status_page *)
__get_free_page(GFP_KERNEL);
rdev->status_page->qp_start = rdev->lldi.vr->qp.start;
rdev->status_page->qp_size = rdev->lldi.vr->qp.size;
rdev->status_page->cq_start = rdev->lldi.vr->cq.start;
rdev->status_page->cq_size = rdev->lldi.vr->cq.size;
if (!rdev->status_page) {
pr_err(MOD "error allocating status page\n");
goto err4;

7
drivers/infiniband/hw/cxgb4/t4.h
View File

@ -699,4 +699,11 @@ static inline void t4_set_cq_in_error(struct t4_cq *cq)
struct t4_dev_status_page {
u8 db_off;
u8 pad1;
u16 pad2;
u32 pad3;
u64 qp_start;
u64 qp_size;
u64 cq_start;
u64 cq_size;
};

2
drivers/infiniband/hw/cxgb4/user.h
View File

@ -32,7 +32,7 @@
#ifndef __C4IW_USER_H__
#define __C4IW_USER_H__
#define C4IW_UVERBS_ABI_VERSION 2
#define C4IW_UVERBS_ABI_VERSION 3
/*
* Make sure that all structs defined in this file remain laid out so