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Commit c5dfb000 authored by Hariprasad S's avatar Hariprasad S Committed by Doug Ledford
Browse files

iw_cxgb4: Pass qid range to user space driver 



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: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 0d6ed314

drivers/infiniband/hw/cxgb4/device.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -850,6 +850,10 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev) 
	}

	}

	rdev->status_page = (struct t4_dev_status_page *)

	rdev->status_page = (struct t4_dev_status_page *)

			    __get_free_page(GFP_KERNEL);

			    __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) {

	if (!rdev->status_page) {

		pr_err(MOD "error allocating status page\n");

		pr_err(MOD "error allocating status page\n");

		goto err4;

		goto err4;

drivers/infiniband/hw/cxgb4/t4.h

+7 −0
Original line number Original line Diff line number Diff line
@@ -699,4 +699,11 @@ static inline void t4_set_cq_in_error(struct t4_cq *cq) 




struct t4_dev_status_page {

struct t4_dev_status_page {

	u8 db_off;

	u8 db_off;

	u8 pad1;

	u16 pad2;

	u32 pad3;

	u64 qp_start;

	u64 qp_size;

	u64 cq_start;

	u64 cq_size;

};
 
};

drivers/infiniband/hw/cxgb4/user.h

+1 −1
Original line number Original line Diff line number Diff line
@@ -32,7 +32,7 @@ 
#ifndef __C4IW_USER_H__

#ifndef __C4IW_USER_H__

#define __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

 * Make sure that all structs defined in this file remain laid out so