Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband (89fbb69c) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/infiniband/core/agent.c

+76 −217

Original line number	Original line	Diff line number	Diff line
	@@ -37,58 +37,41 @@
	* $Id: agent.c 1389 2004-12-27 22:56:47Z roland $		* $Id: agent.c 1389 2004-12-27 22:56:47Z roland $
	*/		*/

	#include <linux/dma-mapping.h>		#include "agent.h"
			#include "smi.h"
	#include <asm/bug.h>

	#include <rdma/ib_smi.h>		#define SPFX "ib_agent: "

	#include "smi.h"		struct ib_agent_port_private {
	#include "agent_priv.h"		struct list_head port_list;
	#include "mad_priv.h"		struct ib_mad_agent *agent[2];
	#include "agent.h"		};

	spinlock_t ib_agent_port_list_lock;		static DEFINE_SPINLOCK(ib_agent_port_list_lock);
	static LIST_HEAD(ib_agent_port_list);		static LIST_HEAD(ib_agent_port_list);

	/*		static struct ib_agent_port_private *
	* Caller must hold ib_agent_port_list_lock		__ib_get_agent_port(struct ib_device *device, int port_num)
	*/
	static inline struct ib_agent_port_private *
	__ib_get_agent_port(struct ib_device *device, int port_num,
	struct ib_mad_agent *mad_agent)
	{		{
	struct ib_agent_port_private *entry;		struct ib_agent_port_private *entry;

	BUG_ON(!(!!device ^ !!mad_agent)); /* Exactly one MUST be (!NULL) */

	if (device) {
	list_for_each_entry(entry, &ib_agent_port_list, port_list) {		list_for_each_entry(entry, &ib_agent_port_list, port_list) {
	if (entry->smp_agent->device == device &&		if (entry->agent[0]->device == device &&
	entry->port_num == port_num)		entry->agent[0]->port_num == port_num)
	return entry;		return entry;
	}		}
	} else {
	list_for_each_entry(entry, &ib_agent_port_list, port_list) {
	if ((entry->smp_agent == mad_agent) \|\|
	(entry->perf_mgmt_agent == mad_agent))
	return entry;
	}
	}
	return NULL;		return NULL;
	}		}

	static inline struct ib_agent_port_private *		static struct ib_agent_port_private *
	ib_get_agent_port(struct ib_device *device, int port_num,		ib_get_agent_port(struct ib_device *device, int port_num)
	struct ib_mad_agent *mad_agent)
	{		{
	struct ib_agent_port_private *entry;		struct ib_agent_port_private *entry;
	unsigned long flags;		unsigned long flags;

	spin_lock_irqsave(&ib_agent_port_list_lock, flags);		spin_lock_irqsave(&ib_agent_port_list_lock, flags);
	entry = __ib_get_agent_port(device, port_num, mad_agent);		entry = __ib_get_agent_port(device, port_num);
	spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);		spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);

	return entry;		return entry;
	}		}

	@@ -100,192 +83,76 @@ int smi_check_local_dr_smp(struct ib_smp *smp,

	if (smp->mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)		if (smp->mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
	return 1;		return 1;
	port_priv = ib_get_agent_port(device, port_num, NULL);
			port_priv = ib_get_agent_port(device, port_num);
	if (!port_priv) {		if (!port_priv) {
	printk(KERN_DEBUG SPFX "smi_check_local_dr_smp %s port %d "		printk(KERN_DEBUG SPFX "smi_check_local_dr_smp %s port %d "
	"not open\n",		"not open\n", device->name, port_num);
	device->name, port_num);
	return 1;		return 1;
	}		}

	return smi_check_local_smp(port_priv->smp_agent, smp);		return smi_check_local_smp(port_priv->agent[0], smp);
	}		}

	static int agent_mad_send(struct ib_mad_agent *mad_agent,		int agent_send_response(struct ib_mad mad, struct ib_grh grh,
	struct ib_agent_port_private *port_priv,		struct ib_wc wc, struct ib_device device,
	struct ib_mad_private *mad_priv,		int port_num, int qpn)
	struct ib_grh *grh,
	struct ib_wc *wc)
	{		{
	struct ib_agent_send_wr *agent_send_wr;		struct ib_agent_port_private *port_priv;
	struct ib_sge gather_list;		struct ib_mad_agent *agent;
	struct ib_send_wr send_wr;		struct ib_mad_send_buf *send_buf;
	struct ib_send_wr *bad_send_wr;		struct ib_ah *ah;
	struct ib_ah_attr ah_attr;		int ret;
	unsigned long flags;
	int ret = 1;

	agent_send_wr = kmalloc(sizeof(*agent_send_wr), GFP_KERNEL);
	if (!agent_send_wr)
	goto out;
	agent_send_wr->mad = mad_priv;

	gather_list.addr = dma_map_single(mad_agent->device->dma_device,
	&mad_priv->mad,
	sizeof(mad_priv->mad),
	DMA_TO_DEVICE);
	gather_list.length = sizeof(mad_priv->mad);
	gather_list.lkey = mad_agent->mr->lkey;

	send_wr.next = NULL;
	send_wr.opcode = IB_WR_SEND;
	send_wr.sg_list = &gather_list;
	send_wr.num_sge = 1;
	send_wr.wr.ud.remote_qpn = wc->src_qp; /* DQPN */
	send_wr.wr.ud.timeout_ms = 0;
	send_wr.send_flags = IB_SEND_SIGNALED \| IB_SEND_SOLICITED;

	ah_attr.dlid = wc->slid;
	ah_attr.port_num = mad_agent->port_num;
	ah_attr.src_path_bits = wc->dlid_path_bits;
	ah_attr.sl = wc->sl;
	ah_attr.static_rate = 0;
	ah_attr.ah_flags = 0; /* No GRH */
	if (mad_priv->mad.mad.mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT) {
	if (wc->wc_flags & IB_WC_GRH) {
	ah_attr.ah_flags = IB_AH_GRH;
	/* Should sgid be looked up ? */
	ah_attr.grh.sgid_index = 0;
	ah_attr.grh.hop_limit = grh->hop_limit;
	ah_attr.grh.flow_label = be32_to_cpu(
	grh->version_tclass_flow) & 0xfffff;
	ah_attr.grh.traffic_class = (be32_to_cpu(
	grh->version_tclass_flow) >> 20) & 0xff;
	memcpy(ah_attr.grh.dgid.raw,
	grh->sgid.raw,
	sizeof(ah_attr.grh.dgid));
	}
	}

	agent_send_wr->ah = ib_create_ah(mad_agent->qp->pd, &ah_attr);
	if (IS_ERR(agent_send_wr->ah)) {
	printk(KERN_ERR SPFX "No memory for address handle\n");
	kfree(agent_send_wr);
	goto out;
	}

	send_wr.wr.ud.ah = agent_send_wr->ah;
	if (mad_priv->mad.mad.mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT) {
	send_wr.wr.ud.pkey_index = wc->pkey_index;
	send_wr.wr.ud.remote_qkey = IB_QP1_QKEY;
	} else { /* for SMPs */
	send_wr.wr.ud.pkey_index = 0;
	send_wr.wr.ud.remote_qkey = 0;
	}
	send_wr.wr.ud.mad_hdr = &mad_priv->mad.mad.mad_hdr;
	send_wr.wr_id = (unsigned long)agent_send_wr;

	pci_unmap_addr_set(agent_send_wr, mapping, gather_list.addr);

	/* Send */		port_priv = ib_get_agent_port(device, port_num);
	spin_lock_irqsave(&port_priv->send_list_lock, flags);		if (!port_priv) {
	if (ib_post_send_mad(mad_agent, &send_wr, &bad_send_wr)) {		printk(KERN_ERR SPFX "Unable to find port agent\n");
	spin_unlock_irqrestore(&port_priv->send_list_lock, flags);		return -ENODEV;
	dma_unmap_single(mad_agent->device->dma_device,
	pci_unmap_addr(agent_send_wr, mapping),
	sizeof(mad_priv->mad),
	DMA_TO_DEVICE);
	ib_destroy_ah(agent_send_wr->ah);
	kfree(agent_send_wr);
	} else {
	list_add_tail(&agent_send_wr->send_list,
	&port_priv->send_posted_list);
	spin_unlock_irqrestore(&port_priv->send_list_lock, flags);
	ret = 0;
	}		}

	out:		agent = port_priv->agent[qpn];
			ah = ib_create_ah_from_wc(agent->qp->pd, wc, grh, port_num);
			if (IS_ERR(ah)) {
			ret = PTR_ERR(ah);
			printk(KERN_ERR SPFX "ib_create_ah_from_wc error:%d\n", ret);
	return ret;		return ret;
	}		}

	int agent_send(struct ib_mad_private *mad,		send_buf = ib_create_send_mad(agent, wc->src_qp, wc->pkey_index, 0,
	struct ib_grh *grh,		IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
	struct ib_wc *wc,		GFP_KERNEL);
	struct ib_device *device,		if (IS_ERR(send_buf)) {
	int port_num)		ret = PTR_ERR(send_buf);
	{		printk(KERN_ERR SPFX "ib_create_send_mad error:%d\n", ret);
	struct ib_agent_port_private *port_priv;		goto err1;
	struct ib_mad_agent *mad_agent;

	port_priv = ib_get_agent_port(device, port_num, NULL);
	if (!port_priv) {
	printk(KERN_DEBUG SPFX "agent_send %s port %d not open\n",
	device->name, port_num);
	return 1;
	}		}

	/* Get mad agent based on mgmt_class in MAD */		memcpy(send_buf->mad, mad, sizeof *mad);
	switch (mad->mad.mad.mad_hdr.mgmt_class) {		send_buf->ah = ah;
	case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:		if ((ret = ib_post_send_mad(send_buf, NULL))) {
	case IB_MGMT_CLASS_SUBN_LID_ROUTED:		printk(KERN_ERR SPFX "ib_post_send_mad error:%d\n", ret);
	mad_agent = port_priv->smp_agent;		goto err2;
	break;
	case IB_MGMT_CLASS_PERF_MGMT:
	mad_agent = port_priv->perf_mgmt_agent;
	break;
	default:
	return 1;
	}		}
			return 0;
	return agent_mad_send(mad_agent, port_priv, mad, grh, wc);		err2:
			ib_free_send_mad(send_buf);
			err1:
			ib_destroy_ah(ah);
			return ret;
	}		}

	static void agent_send_handler(struct ib_mad_agent *mad_agent,		static void agent_send_handler(struct ib_mad_agent *mad_agent,
	struct ib_mad_send_wc *mad_send_wc)		struct ib_mad_send_wc *mad_send_wc)
	{		{
	struct ib_agent_port_private *port_priv;		ib_destroy_ah(mad_send_wc->send_buf->ah);
	struct ib_agent_send_wr *agent_send_wr;		ib_free_send_mad(mad_send_wc->send_buf);
	unsigned long flags;

	/* Find matching MAD agent */
	port_priv = ib_get_agent_port(NULL, 0, mad_agent);
	if (!port_priv) {
	printk(KERN_ERR SPFX "agent_send_handler: no matching MAD "
	"agent %p\n", mad_agent);
	return;
	}

	agent_send_wr = (struct ib_agent_send_wr *)(unsigned long)mad_send_wc->wr_id;
	spin_lock_irqsave(&port_priv->send_list_lock, flags);
	/* Remove completed send from posted send MAD list */
	list_del(&agent_send_wr->send_list);
	spin_unlock_irqrestore(&port_priv->send_list_lock, flags);

	dma_unmap_single(mad_agent->device->dma_device,
	pci_unmap_addr(agent_send_wr, mapping),
	sizeof(agent_send_wr->mad->mad),
	DMA_TO_DEVICE);

	ib_destroy_ah(agent_send_wr->ah);

	/* Release allocated memory */
	kmem_cache_free(ib_mad_cache, agent_send_wr->mad);
	kfree(agent_send_wr);
	}		}

	int ib_agent_port_open(struct ib_device *device, int port_num)		int ib_agent_port_open(struct ib_device *device, int port_num)
	{		{
	int ret;
	struct ib_agent_port_private *port_priv;		struct ib_agent_port_private *port_priv;
	unsigned long flags;		unsigned long flags;
			int ret;
	/* First, check if port already open for SMI */
	port_priv = ib_get_agent_port(device, port_num, NULL);
	if (port_priv) {
	printk(KERN_DEBUG SPFX "%s port %d already open\n",
	device->name, port_num);
	return 0;
	}

	/* Create new device info */		/* Create new device info */
	port_priv = kmalloc(sizeof *port_priv, GFP_KERNEL);		port_priv = kmalloc(sizeof *port_priv, GFP_KERNEL);
	@@ -294,32 +161,25 @@ int ib_agent_port_open(struct ib_device *device, int port_num)
	ret = -ENOMEM;		ret = -ENOMEM;
	goto error1;		goto error1;
	}		}

	memset(port_priv, 0, sizeof *port_priv);		memset(port_priv, 0, sizeof *port_priv);
	port_priv->port_num = port_num;
	spin_lock_init(&port_priv->send_list_lock);
	INIT_LIST_HEAD(&port_priv->send_posted_list);

	/* Obtain send only MAD agent for SM class (SMI QP) */		/* Obtain send only MAD agent for SMI QP */
	port_priv->smp_agent = ib_register_mad_agent(device, port_num,		port_priv->agent[0] = ib_register_mad_agent(device, port_num,
	IB_QPT_SMI,		IB_QPT_SMI, NULL, 0,
	NULL, 0,
	&agent_send_handler,		&agent_send_handler,
	NULL, NULL);		NULL, NULL);
			if (IS_ERR(port_priv->agent[0])) {
	if (IS_ERR(port_priv->smp_agent)) {		ret = PTR_ERR(port_priv->agent[0]);
	ret = PTR_ERR(port_priv->smp_agent);
	goto error2;		goto error2;
	}		}

	/* Obtain send only MAD agent for PerfMgmt class (GSI QP) */		/* Obtain send only MAD agent for GSI QP */
	port_priv->perf_mgmt_agent = ib_register_mad_agent(device, port_num,		port_priv->agent[1] = ib_register_mad_agent(device, port_num,
	IB_QPT_GSI,		IB_QPT_GSI, NULL, 0,
	NULL, 0,
	&agent_send_handler,		&agent_send_handler,
	NULL, NULL);		NULL, NULL);
	if (IS_ERR(port_priv->perf_mgmt_agent)) {		if (IS_ERR(port_priv->agent[1])) {
	ret = PTR_ERR(port_priv->perf_mgmt_agent);		ret = PTR_ERR(port_priv->agent[1]);
	goto error3;		goto error3;
	}		}

	@@ -330,7 +190,7 @@ int ib_agent_port_open(struct ib_device *device, int port_num)
	return 0;		return 0;

	error3:		error3:
	ib_unregister_mad_agent(port_priv->smp_agent);		ib_unregister_mad_agent(port_priv->agent[0]);
	error2:		error2:
	kfree(port_priv);		kfree(port_priv);
	error1:		error1:
	@@ -343,7 +203,7 @@ int ib_agent_port_close(struct ib_device *device, int port_num)
	unsigned long flags;		unsigned long flags;

	spin_lock_irqsave(&ib_agent_port_list_lock, flags);		spin_lock_irqsave(&ib_agent_port_list_lock, flags);
	port_priv = __ib_get_agent_port(device, port_num, NULL);		port_priv = __ib_get_agent_port(device, port_num);
	if (port_priv == NULL) {		if (port_priv == NULL) {
	spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);		spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);
	printk(KERN_ERR SPFX "Port %d not found\n", port_num);		printk(KERN_ERR SPFX "Port %d not found\n", port_num);
	@@ -352,9 +212,8 @@ int ib_agent_port_close(struct ib_device *device, int port_num)
	list_del(&port_priv->port_list);		list_del(&port_priv->port_list);
	spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);		spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);

	ib_unregister_mad_agent(port_priv->perf_mgmt_agent);		ib_unregister_mad_agent(port_priv->agent[1]);
	ib_unregister_mad_agent(port_priv->smp_agent);		ib_unregister_mad_agent(port_priv->agent[0]);
	kfree(port_priv);		kfree(port_priv);

	return 0;		return 0;
	}		}

drivers/infiniband/core/agent.h

+5 −8

Original line number	Original line	Diff line number	Diff line
	@@ -39,17 +39,14 @@
	#ifndef __AGENT_H_		#ifndef __AGENT_H_
	#define __AGENT_H_		#define __AGENT_H_

	extern spinlock_t ib_agent_port_list_lock;		#include <rdma/ib_mad.h>

	extern int ib_agent_port_open(struct ib_device *device,		extern int ib_agent_port_open(struct ib_device *device, int port_num);
	int port_num);

	extern int ib_agent_port_close(struct ib_device *device, int port_num);		extern int ib_agent_port_close(struct ib_device *device, int port_num);

	extern int agent_send(struct ib_mad_private *mad,		extern int agent_send_response(struct ib_mad mad, struct ib_grh grh,
	struct ib_grh *grh,		struct ib_wc wc, struct ib_device device,
	struct ib_wc *wc,		int port_num, int qpn);
	struct ib_device *device,
	int port_num);

	#endif /* __AGENT_H_ */		#endif /* __AGENT_H_ */

drivers/infiniband/core/agent_priv.h

deleted100644 → 0

+0 −62

Original line number	Original line	Diff line number	Diff line
	/*
	* Copyright (c) 2004, 2005 Mellanox Technologies Ltd. All rights reserved.
	* Copyright (c) 2004, 2005 Infinicon Corporation. All rights reserved.
	* Copyright (c) 2004, 2005 Intel Corporation. All rights reserved.
	* Copyright (c) 2004, 2005 Topspin Corporation. All rights reserved.
	* Copyright (c) 2004, 2005 Voltaire Corporation. 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.
	*
	* $Id: agent_priv.h 1640 2005-01-24 22:39:02Z halr $
	*/

	#ifndef __IB_AGENT_PRIV_H__
	#define __IB_AGENT_PRIV_H__

	#include <linux/pci.h>

	#define SPFX "ib_agent: "

	struct ib_agent_send_wr {
	struct list_head send_list;
	struct ib_ah *ah;
	struct ib_mad_private *mad;
	DECLARE_PCI_UNMAP_ADDR(mapping)
	};

	struct ib_agent_port_private {
	struct list_head port_list;
	struct list_head send_posted_list;
	spinlock_t send_list_lock;
	int port_num;
	struct ib_mad_agent smp_agent; / SM class */
	struct ib_mad_agent perf_mgmt_agent; / PerfMgmt class */
	};

	#endif /* __IB_AGENT_PRIV_H__ */