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Commit b038ced7 authored by Steve Wise's avatar Steve Wise Committed by Roland Dreier
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RDMA/cxgb3: Add driver for Chelsio T3 RNIC



Add an RDMA/iWARP driver for the Chelsio T3 1GbE and 10GbE adapters.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent c7f743a6
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@@ -38,6 +38,7 @@ source "drivers/infiniband/hw/mthca/Kconfig"
source "drivers/infiniband/hw/ipath/Kconfig"
source "drivers/infiniband/hw/ehca/Kconfig"
source "drivers/infiniband/hw/amso1100/Kconfig"
source "drivers/infiniband/hw/cxgb3/Kconfig"

source "drivers/infiniband/ulp/ipoib/Kconfig"

+1 −0
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@@ -3,6 +3,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA) += hw/mthca/
obj-$(CONFIG_INFINIBAND_IPATH)		+= hw/ipath/
obj-$(CONFIG_INFINIBAND_EHCA)		+= hw/ehca/
obj-$(CONFIG_INFINIBAND_AMSO1100)	+= hw/amso1100/
obj-$(CONFIG_INFINIBAND_CXGB3)		+= hw/cxgb3/
obj-$(CONFIG_INFINIBAND_IPOIB)		+= ulp/ipoib/
obj-$(CONFIG_INFINIBAND_SRP)		+= ulp/srp/
obj-$(CONFIG_INFINIBAND_ISER)		+= ulp/iser/
+27 −0
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config INFINIBAND_CXGB3
	tristate "Chelsio RDMA Driver"
	depends on CHELSIO_T3 && INFINIBAND && INET
	select GENERIC_ALLOCATOR
	---help---
	  This is an iWARP/RDMA driver for the Chelsio T3 1GbE and
	  10GbE adapters.

	  For general information about Chelsio and our products, visit
	  our website at <http://www.chelsio.com>.

	  For customer support, please visit our customer support page at
	  <http://www.chelsio.com/support.htm>.

	  Please send feedback to <linux-bugs@chelsio.com>.

	  To compile this driver as a module, choose M here: the module
	  will be called iw_cxgb3.

config INFINIBAND_CXGB3_DEBUG
	bool "Verbose debugging output"
	depends on INFINIBAND_CXGB3
	default n
	---help---
	  This option causes the Chelsio RDMA driver to produce copious
	  amounts of debug messages.  Select this if you are developing
	  the driver or trying to diagnose a problem.
+12 −0
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EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3 \
		-I$(TOPDIR)/drivers/infiniband/hw/cxgb3/core

obj-$(CONFIG_INFINIBAND_CXGB3) += iw_cxgb3.o

iw_cxgb3-y :=  iwch_cm.o iwch_ev.o iwch_cq.o iwch_qp.o iwch_mem.o \
	       iwch_provider.o iwch.o cxio_hal.o cxio_resource.o

ifdef CONFIG_INFINIBAND_CXGB3_DEBUG
EXTRA_CFLAGS += -DDEBUG
iw_cxgb3-y += cxio_dbg.o
endif
+207 −0
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/*
 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
 * Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#ifdef DEBUG
#include <linux/types.h>
#include "common.h"
#include "cxgb3_ioctl.h"
#include "cxio_hal.h"
#include "cxio_wr.h"

void cxio_dump_tpt(struct cxio_rdev *rdev, u32 stag)
{
	struct ch_mem_range *m;
	u64 *data;
	int rc;
	int size = 32;

	m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
	if (!m) {
		PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
		return;
	}
	m->mem_id = MEM_PMRX;
	m->addr = (stag>>8) * 32 + rdev->rnic_info.tpt_base;
	m->len = size;
	PDBG("%s TPT addr 0x%x len %d\n", __FUNCTION__, m->addr, m->len);
	rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
	if (rc) {
		PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
		kfree(m);
		return;
	}

	data = (u64 *)m->buf;
	while (size > 0) {
		PDBG("TPT %08x: %016llx\n", m->addr, (unsigned long long) *data);
		size -= 8;
		data++;
		m->addr += 8;
	}
	kfree(m);
}

void cxio_dump_pbl(struct cxio_rdev *rdev, u32 pbl_addr, uint len, u8 shift)
{
	struct ch_mem_range *m;
	u64 *data;
	int rc;
	int size, npages;

	shift += 12;
	npages = (len + (1ULL << shift) - 1) >> shift;
	size = npages * sizeof(u64);

	m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
	if (!m) {
		PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
		return;
	}
	m->mem_id = MEM_PMRX;
	m->addr = pbl_addr;
	m->len = size;
	PDBG("%s PBL addr 0x%x len %d depth %d\n",
		__FUNCTION__, m->addr, m->len, npages);
	rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
	if (rc) {
		PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
		kfree(m);
		return;
	}

	data = (u64 *)m->buf;
	while (size > 0) {
		PDBG("PBL %08x: %016llx\n", m->addr, (unsigned long long) *data);
		size -= 8;
		data++;
		m->addr += 8;
	}
	kfree(m);
}

void cxio_dump_wqe(union t3_wr *wqe)
{
	__be64 *data = (__be64 *)wqe;
	uint size = (uint)(be64_to_cpu(*data) & 0xff);

	if (size == 0)
		size = 8;
	while (size > 0) {
		PDBG("WQE %p: %016llx\n", data,
		     (unsigned long long) be64_to_cpu(*data));
		size--;
		data++;
	}
}

void cxio_dump_wce(struct t3_cqe *wce)
{
	__be64 *data = (__be64 *)wce;
	int size = sizeof(*wce);

	while (size > 0) {
		PDBG("WCE %p: %016llx\n", data,
		     (unsigned long long) be64_to_cpu(*data));
		size -= 8;
		data++;
	}
}

void cxio_dump_rqt(struct cxio_rdev *rdev, u32 hwtid, int nents)
{
	struct ch_mem_range *m;
	int size = nents * 64;
	u64 *data;
	int rc;

	m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
	if (!m) {
		PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
		return;
	}
	m->mem_id = MEM_PMRX;
	m->addr = ((hwtid)<<10) + rdev->rnic_info.rqt_base;
	m->len = size;
	PDBG("%s RQT addr 0x%x len %d\n", __FUNCTION__, m->addr, m->len);
	rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
	if (rc) {
		PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
		kfree(m);
		return;
	}

	data = (u64 *)m->buf;
	while (size > 0) {
		PDBG("RQT %08x: %016llx\n", m->addr, (unsigned long long) *data);
		size -= 8;
		data++;
		m->addr += 8;
	}
	kfree(m);
}

void cxio_dump_tcb(struct cxio_rdev *rdev, u32 hwtid)
{
	struct ch_mem_range *m;
	int size = TCB_SIZE;
	u32 *data;
	int rc;

	m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
	if (!m) {
		PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
		return;
	}
	m->mem_id = MEM_CM;
	m->addr = hwtid * size;
	m->len = size;
	PDBG("%s TCB %d len %d\n", __FUNCTION__, m->addr, m->len);
	rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
	if (rc) {
		PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
		kfree(m);
		return;
	}

	data = (u32 *)m->buf;
	while (size > 0) {
		printk("%2u: %08x %08x %08x %08x %08x %08x %08x %08x\n",
			m->addr,
			*(data+2), *(data+3), *(data),*(data+1),
			*(data+6), *(data+7), *(data+4), *(data+5));
		size -= 32;
		data += 8;
		m->addr += 32;
	}
	kfree(m);
}
#endif
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