| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1308228138-22669-1-git-send-email-bmt@zurich.ibm.com>
Date: Thu, 16 Jun 2011 14:42:18 +0200
From: Bernard Metzler <bmt@...ich.ibm.com>
To: netdev@...r.kernel.org
Cc: linux-rdma@...r.kernel.org, Bernard Metzler <bmt@...ich.ibm.com>
Subject: [PATCH 07/14] SIWv2: Object management: siw_obj.c, siw_obj.h
---
drivers/infiniband/hw/siw/siw_obj.c | 465 +++++++++++++++++++++++++++++++++++
drivers/infiniband/hw/siw/siw_obj.h | 137 ++++++++++
2 files changed, 602 insertions(+), 0 deletions(-)
create mode 100644 drivers/infiniband/hw/siw/siw_obj.c
create mode 100644 drivers/infiniband/hw/siw/siw_obj.h
diff --git a/drivers/infiniband/hw/siw/siw_obj.c b/drivers/infiniband/hw/siw/siw_obj.c
new file mode 100644
index 0000000..19e78a6
--- /dev/null
+++ b/drivers/infiniband/hw/siw/siw_obj.c
@@ -0,0 +1,465 @@
+/*
+ * Software iWARP device driver for Linux
+ *
+ * Authors: Bernard Metzler <bmt@...ich.ibm.com>
+ *
+ * Copyright (c) 2008-2011, IBM Corporation
+ *
+ * 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
+ * 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.
+ *
+ * - Neither the name of IBM nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * 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.
+ */
+
+#include <linux/spinlock.h>
+#include <linux/kref.h>
+
+#include "siw.h"
+#include "siw_obj.h"
+#include "siw_cm.h"
+
+
+void siw_objhdr_init(struct siw_objhdr *hdr)
+{
+ kref_init(&hdr->ref);
+}
+
+void siw_idr_init(struct siw_dev *dev)
+{
+ spin_lock_init(&dev->idr_lock);
+
+ idr_init(&dev->qp_idr);
+ idr_init(&dev->cq_idr);
+ idr_init(&dev->pd_idr);
+ idr_init(&dev->mem_idr);
+}
+
+void siw_idr_release(struct siw_dev *dev)
+{
+ idr_destroy(&dev->qp_idr);
+ idr_destroy(&dev->cq_idr);
+ idr_destroy(&dev->pd_idr);
+ idr_destroy(&dev->mem_idr);
+}
+
+static inline int siw_add_obj(spinlock_t *lock, struct idr *idr,
+ struct siw_objhdr *obj)
+{
+ u32 pre_id, id;
+ unsigned long flags;
+ int rv;
+
+ get_random_bytes(&pre_id, sizeof pre_id);
+ pre_id &= 0xffff;
+again:
+ do {
+ if (!(idr_pre_get(idr, GFP_KERNEL)))
+ return -ENOMEM;
+
+ spin_lock_irqsave(lock, flags);
+ rv = idr_get_new_above(idr, obj, pre_id, &id);
+ spin_unlock_irqrestore(lock, flags);
+
+ } while (rv == -EAGAIN);
+
+ if (rv == 0) {
+ siw_objhdr_init(obj);
+ obj->id = id;
+ dprint(DBG_OBJ, "(OBJ%d): IDR New Object\n", id);
+ } else if (rv == -ENOSPC && pre_id != 1) {
+ pre_id = 1;
+ goto again;
+ } else {
+ dprint(DBG_OBJ|DBG_ON, "(OBJ??): IDR New Object failed!\n");
+ }
+ return rv;
+}
+
+static inline struct siw_objhdr *siw_get_obj(struct idr *idr, int id)
+{
+ struct siw_objhdr *obj;
+
+ obj = idr_find(idr, id);
+ if (obj)
+ kref_get(&obj->ref);
+
+ return obj;
+}
+
+struct siw_cq *siw_cq_id2obj(struct siw_dev *dev, int id)
+{
+ struct siw_objhdr *obj = siw_get_obj(&dev->cq_idr, id);
+ if (obj)
+ return container_of(obj, struct siw_cq, hdr);
+
+ return NULL;
+}
+
+struct siw_qp *siw_qp_id2obj(struct siw_dev *dev, int id)
+{
+ struct siw_objhdr *obj = siw_get_obj(&dev->qp_idr, id);
+ if (obj)
+ return container_of(obj, struct siw_qp, hdr);
+
+ return NULL;
+}
+
+/*
+ * siw_mem_id2obj()
+ *
+ * resolves memory from stag given by id. might be called from:
+ * o process context before sending out of sgl
+ * o or in softirq when resolving target memory
+ */
+struct siw_mem *siw_mem_id2obj(struct siw_dev *dev, int id)
+{
+ struct siw_objhdr *obj;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->idr_lock, flags);
+ obj = siw_get_obj(&dev->mem_idr, id);
+ spin_unlock_irqrestore(&dev->idr_lock, flags);
+
+ if (obj) {
+ dprint(DBG_MM|DBG_OBJ, "(MEM%d): New refcount: %d\n",
+ obj->id, obj->ref.refcount.counter);
+
+ return container_of(obj, struct siw_mem, hdr);
+ }
+ dprint(DBG_MM|DBG_OBJ|DBG_ON, "(MEM%d): not found!\n", id);
+
+ return NULL;
+}
+
+int siw_qp_add(struct siw_dev *dev, struct siw_qp *qp)
+{
+ int rv = siw_add_obj(&dev->idr_lock, &dev->qp_idr, &qp->hdr);
+ if (!rv) {
+ dprint(DBG_OBJ, "(QP%d): New Object\n", QP_ID(qp));
+ qp->hdr.dev = dev;
+ }
+ return rv;
+}
+
+int siw_cq_add(struct siw_dev *dev, struct siw_cq *cq)
+{
+ int rv = siw_add_obj(&dev->idr_lock, &dev->cq_idr, &cq->hdr);
+ if (!rv) {
+ dprint(DBG_OBJ, "(CQ%d): New Object\n", cq->hdr.id);
+ cq->hdr.dev = dev;
+ }
+ return rv;
+}
+
+int siw_pd_add(struct siw_dev *dev, struct siw_pd *pd)
+{
+ int rv = siw_add_obj(&dev->idr_lock, &dev->pd_idr, &pd->hdr);
+ if (!rv) {
+ dprint(DBG_OBJ, "(PD%d): New Object\n", pd->hdr.id);
+ pd->hdr.dev = dev;
+ }
+ return rv;
+}
+
+/*
+ * Stag lookup is based on its index part only (24 bits)
+ * It is assumed that the idr_get_new_above(,,1,) function will
+ * always return a new id within this range (0x1...0xffffff),
+ * if one is available.
+ * The code avoids special Stag of zero and tries to randomize
+ * STag values.
+ */
+int siw_mem_add(struct siw_dev *dev, struct siw_mem *m)
+{
+ u32 id, pre_id;
+ unsigned long flags;
+ int rv;
+
+ do {
+ get_random_bytes(&pre_id, sizeof pre_id);
+ pre_id &= 0xffff;
+ } while (pre_id == 0);
+again:
+ do {
+ if (!(idr_pre_get(&dev->mem_idr, GFP_KERNEL)))
+ return -ENOMEM;
+
+ spin_lock_irqsave(&dev->idr_lock, flags);
+ rv = idr_get_new_above(&dev->mem_idr, m, pre_id, &id);
+ spin_unlock_irqrestore(&dev->idr_lock, flags);
+
+ } while (rv == -EAGAIN);
+
+ if (rv == -ENOSPC || (rv == 0 && id > SIW_STAG_MAX)) {
+ if (rv == 0) {
+ spin_lock_irqsave(&dev->idr_lock, flags);
+ idr_remove(&dev->mem_idr, id);
+ spin_unlock_irqrestore(&dev->idr_lock, flags);
+ }
+ if (pre_id == 1) {
+ dprint(DBG_OBJ|DBG_MM|DBG_ON,
+ "(IDR): New Object failed: %d\n", pre_id);
+ return -ENOSPC;
+ }
+ pre_id = 1;
+ goto again;
+ } else if (rv) {
+ dprint(DBG_OBJ|DBG_MM|DBG_ON,
+ "(IDR%d): New Object failed: rv %d\n", id, rv);
+ return rv;
+ }
+ siw_objhdr_init(&m->hdr);
+ m->hdr.id = id;
+ m->hdr.dev = dev;
+ dprint(DBG_OBJ|DBG_MM, "(IDR%d): New Object\n", id);
+
+ return 0;
+}
+
+void siw_remove_obj(spinlock_t *lock, struct idr *idr,
+ struct siw_objhdr *hdr)
+{
+ unsigned long flags;
+
+ dprint(DBG_OBJ, "(OBJ%d): IDR Remove Object\n", hdr->id);
+
+ spin_lock_irqsave(lock, flags);
+ idr_remove(idr, hdr->id);
+ spin_unlock_irqrestore(lock, flags);
+}
+
+
+/********** routines to put objs back and free if no ref left *****/
+
+static void siw_free_cq(struct kref *ref)
+{
+ struct siw_cq *cq =
+ (container_of(container_of(ref, struct siw_objhdr, ref),
+ struct siw_cq, hdr));
+
+ dprint(DBG_OBJ, "(CQ%d): Free Object\n", cq->hdr.id);
+
+ atomic_dec(&cq->hdr.dev->num_cq);
+ kfree(cq);
+}
+
+static void siw_free_qp(struct kref *ref)
+{
+ struct siw_qp *qp =
+ container_of(container_of(ref, struct siw_objhdr, ref),
+ struct siw_qp, hdr);
+ struct siw_dev *dev = qp->hdr.dev;
+ unsigned long flags;
+
+ dprint(DBG_OBJ|DBG_CM, "(QP%d): Free Object\n", QP_ID(qp));
+
+ if (qp->cep)
+ siw_cep_put(qp->cep);
+
+ siw_drain_wq(&qp->freeq);
+
+ siw_remove_obj(&dev->idr_lock, &dev->qp_idr, &qp->hdr);
+
+ spin_lock_irqsave(&dev->idr_lock, flags);
+ list_del(&qp->devq);
+ spin_unlock_irqrestore(&dev->idr_lock, flags);
+
+ atomic_dec(&dev->num_qp);
+ kfree(qp);
+}
+
+static void siw_free_pd(struct kref *ref)
+{
+ struct siw_pd *pd =
+ container_of(container_of(ref, struct siw_objhdr, ref),
+ struct siw_pd, hdr);
+
+ dprint(DBG_OBJ, "(PD%d): Free Object\n", pd->hdr.id);
+
+ atomic_dec(&pd->hdr.dev->num_pd);
+ kfree(pd);
+}
+
+static void siw_free_mem(struct kref *ref)
+{
+ struct siw_mem *m;
+
+ m = container_of(container_of(ref, struct siw_objhdr, ref),
+ struct siw_mem, hdr);
+
+ dprint(DBG_MM|DBG_OBJ, "(MEM%d): Free Object\n", OBJ_ID(m));
+
+ atomic_dec(&m->hdr.dev->num_mem);
+
+ if (SIW_MEM_IS_MW(m)) {
+ struct siw_mw *mw = container_of(m, struct siw_mw, mem);
+ kfree(mw);
+ } else {
+ struct siw_mr *mr = container_of(m, struct siw_mr, mem);
+ dprint(DBG_MM|DBG_OBJ, "(MEM%d): Release UMem\n", OBJ_ID(m));
+ if (mr->umem)
+ ib_umem_release(mr->umem);
+ kfree(mr);
+ }
+}
+
+
+void siw_cq_put(struct siw_cq *cq)
+{
+ dprint(DBG_OBJ, "(CQ%d): Old refcount: %d\n",
+ OBJ_ID(cq), atomic_read(&cq->hdr.ref.refcount));
+ kref_put(&cq->hdr.ref, siw_free_cq);
+}
+
+void siw_qp_put(struct siw_qp *qp)
+{
+ dprint(DBG_OBJ, "(QP%d): Old refcount: %d\n",
+ QP_ID(qp), atomic_read(&qp->hdr.ref.refcount));
+ kref_put(&qp->hdr.ref, siw_free_qp);
+}
+
+void siw_pd_put(struct siw_pd *pd)
+{
+ dprint(DBG_OBJ, "(PD%d): Old refcount: %d\n",
+ OBJ_ID(pd), atomic_read(&pd->hdr.ref.refcount));
+ kref_put(&pd->hdr.ref, siw_free_pd);
+}
+
+void siw_mem_put(struct siw_mem *m)
+{
+ dprint(DBG_MM|DBG_OBJ, "(MEM%d): Old refcount: %d\n",
+ OBJ_ID(m), atomic_read(&m->hdr.ref.refcount));
+ kref_put(&m->hdr.ref, siw_free_mem);
+}
+
+
+/***** routines for WQE handling ***/
+
+inline struct siw_wqe *siw_freeq_wqe_get(struct siw_qp *qp)
+{
+ struct siw_wqe *wqe = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qp->freeq_lock, flags);
+ if (!list_empty(&qp->freeq)) {
+ wqe = list_first_wqe(&qp->freeq);
+ list_del(&wqe->list);
+ spin_unlock_irqrestore(&qp->freeq_lock, flags);
+ dprint(DBG_OBJ|DBG_WR,
+ "(QP%d): WQE from FreeList p: %p\n",
+ QP_ID(qp), wqe);
+ } else {
+ spin_unlock_irqrestore(&qp->freeq_lock, flags);
+ dprint(DBG_ON|DBG_OBJ|DBG_WR,
+ "(QP%d): FreeList empty!\n", QP_ID(qp));
+ }
+ return wqe;
+}
+
+static inline void siw_free_inline_sgl(struct siw_sge *sge, int num_sge)
+{
+ while (num_sge--) {
+ kfree(sge->mem.buf); /* kfree handles NULL pointers */
+ sge->mem.buf = NULL;
+ sge++;
+ }
+}
+
+static inline void siw_unref_mem_sgl(struct siw_sge *sge, int num_sge)
+{
+ while (num_sge--) {
+ if (sge->mem.obj != NULL)
+ siw_mem_put(sge->mem.obj);
+ sge++;
+ }
+}
+
+void siw_wqe_put(struct siw_wqe *wqe)
+{
+ struct siw_qp *qp = wqe->qp;
+
+ dprint(DBG_OBJ|DBG_WR, " WQE: %llu:, type: %d, p: %p\n",
+ (unsigned long long)wr_id(wqe), wr_type(wqe), wqe);
+
+ switch (wr_type(wqe)) {
+
+ case SIW_WR_SEND:
+ case SIW_WR_RDMA_WRITE:
+ case SIW_WR_RDMA_WRITE_WITH_IMM:
+ case SIW_WR_SEND_WITH_IMM:
+ case SIW_WR_RDMA_READ_REQ:
+ if (likely(!SIW_INLINED_DATA(wqe)))
+ siw_unref_mem_sgl(wqe->wr.sgl.sge,
+ wqe->wr.sgl.num_sge);
+ else
+ siw_free_inline_sgl(wqe->wr.sgl.sge,
+ wqe->wr.sgl.num_sge);
+ if (qp->attrs.flags & SIW_KERNEL_VERBS)
+ siw_add_wqe(wqe, &qp->freeq, &qp->freeq_lock);
+ else {
+ kfree(wqe);
+ SIW_DEC_STAT_WQE;
+ }
+ atomic_inc(&qp->sq_space);
+ break;
+
+ case SIW_WR_RECEIVE:
+ siw_unref_mem_sgl(wqe->wr.sgl.sge, wqe->wr.sgl.num_sge);
+ if (qp->srq) {
+ struct siw_srq *srq = qp->srq;
+ if (srq->kernel_verbs)
+ siw_add_wqe(wqe, &srq->freeq,
+ &srq->freeq_lock);
+ else {
+ kfree(wqe);
+ SIW_DEC_STAT_WQE;
+ }
+ atomic_inc(&srq->space);
+ } else {
+ if (qp->attrs.flags & SIW_KERNEL_VERBS)
+ siw_add_wqe(wqe, &qp->freeq, &qp->freeq_lock);
+ else {
+ kfree(wqe);
+ SIW_DEC_STAT_WQE;
+ }
+ atomic_inc(&qp->rq_space);
+ }
+ break;
+
+ case SIW_WR_RDMA_READ_RESP:
+ siw_unref_mem_sgl(wqe->wr.sgl.sge, 1);
+ wqe->wr.sgl.sge[0].mem.obj = NULL;
+ siw_add_wqe(wqe, &qp->freeq, &qp->freeq_lock);
+ atomic_inc(&qp->irq_space);
+ break;
+
+ default:
+ WARN_ON(1);
+ }
+ siw_qp_put(qp);
+}
diff --git a/drivers/infiniband/hw/siw/siw_obj.h b/drivers/infiniband/hw/siw/siw_obj.h
new file mode 100644
index 0000000..6740be4
--- /dev/null
+++ b/drivers/infiniband/hw/siw/siw_obj.h
@@ -0,0 +1,137 @@
+/*
+ * Software iWARP device driver for Linux
+ *
+ * Authors: Bernard Metzler <bmt@...ich.ibm.com>
+ *
+ * Copyright (c) 2008-2011, IBM Corporation
+ *
+ * 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
+ * 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.
+ *
+ * - Neither the name of IBM nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * 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.
+ */
+
+#ifndef _SIW_OBJ_H
+#define _SIW_OBJ_H
+
+#include <linux/idr.h>
+#include <linux/rwsem.h>
+#include <linux/version.h>
+#include <linux/sched.h>
+#include <linux/semaphore.h>
+
+#include <rdma/ib_verbs.h>
+
+#include "siw_debug.h"
+
+extern atomic_t siw_num_wqe;
+
+#if DPRINT_MASK > 0
+#define SIW_INC_STAT_WQE atomic_inc(&siw_num_wqe)
+#define SIW_DEC_STAT_WQE atomic_dec(&siw_num_wqe)
+#else
+#define SIW_INC_STAT_WQE do { } while (0)
+#define SIW_DEC_STAT_WQE do { } while (0)
+#endif
+
+static inline struct siw_dev *siw_dev_ofa2siw(struct ib_device *ofa_dev)
+{
+ return container_of(ofa_dev, struct siw_dev, ofa_dev);
+}
+
+static inline void siw_cq_get(struct siw_cq *cq)
+{
+ kref_get(&cq->hdr.ref);
+ dprint(DBG_OBJ, "(CQ%d): New refcount: %d\n",
+ OBJ_ID(cq), atomic_read(&cq->hdr.ref.refcount));
+}
+static inline void siw_qp_get(struct siw_qp *qp)
+{
+ kref_get(&qp->hdr.ref);
+ dprint(DBG_OBJ, "(QP%d): New refcount: %d\n",
+ OBJ_ID(qp), atomic_read(&qp->hdr.ref.refcount));
+}
+static inline void siw_pd_get(struct siw_pd *pd)
+{
+ kref_get(&pd->hdr.ref);
+ dprint(DBG_OBJ, "(PD%d): New refcount: %d\n",
+ OBJ_ID(pd), atomic_read(&pd->hdr.ref.refcount));
+}
+static inline void siw_mem_get(struct siw_mem *mem)
+{
+ kref_get(&mem->hdr.ref);
+ dprint(DBG_OBJ|DBG_MM, "(MEM%d): New refcount: %d\n",
+ OBJ_ID(mem), atomic_read(&mem->hdr.ref.refcount));
+}
+
+static inline void siw_add_wqe(struct siw_wqe *wqe, struct list_head *wq,
+ spinlock_t *lock)
+{
+ unsigned long flags;
+
+ INIT_LIST_HEAD(&wqe->list);
+ spin_lock_irqsave(lock, flags);
+ list_add(&wqe->list, wq);
+ spin_unlock_irqrestore(lock, flags);
+}
+
+static inline void siw_drain_wq(struct list_head *wq)
+{
+ while (!list_empty(wq)) {
+ struct siw_wqe *wqe = list_first_wqe(wq);
+ list_del(&wqe->list);
+ kfree(wqe);
+ SIW_DEC_STAT_WQE;
+ }
+}
+
+extern void siw_remove_obj(spinlock_t *lock, struct idr *idr,
+ struct siw_objhdr *hdr);
+
+extern void siw_objhdr_init(struct siw_objhdr *);
+extern void siw_idr_init(struct siw_dev *);
+extern void siw_idr_release(struct siw_dev *);
+
+extern struct siw_cq *siw_cq_id2obj(struct siw_dev *, int);
+extern struct siw_qp *siw_qp_id2obj(struct siw_dev *, int);
+extern struct siw_mem *siw_mem_id2obj(struct siw_dev *, int);
+
+extern int siw_qp_add(struct siw_dev *, struct siw_qp *);
+extern int siw_cq_add(struct siw_dev *, struct siw_cq *);
+extern int siw_pd_add(struct siw_dev *, struct siw_pd *);
+extern int siw_mem_add(struct siw_dev *, struct siw_mem *m);
+
+extern struct siw_wqe *siw_freeq_wqe_get(struct siw_qp *);
+
+extern void siw_cq_put(struct siw_cq *);
+extern void siw_qp_put(struct siw_qp *);
+extern void siw_pd_put(struct siw_pd *);
+extern void siw_mem_put(struct siw_mem *);
+extern void siw_wqe_put(struct siw_wqe *);
+
+#endif
--
1.5.4.3
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists