1322 lines
35 KiB
C
1322 lines
35 KiB
C
/*
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* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/list.h>
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#include <linux/sched/mm.h>
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#include <linux/spinlock.h>
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#include <linux/ethtool.h>
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#include <linux/rtnetlink.h>
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#include <linux/inetdevice.h>
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#include <linux/slab.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/byteorder.h>
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#include <rdma/iw_cm.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_smi.h>
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#include <rdma/ib_umem.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/uverbs_ioctl.h>
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#include "cxio_hal.h"
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#include "iwch.h"
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#include "iwch_provider.h"
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#include "iwch_cm.h"
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#include <rdma/cxgb3-abi.h>
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#include "common.h"
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static void iwch_dealloc_ucontext(struct ib_ucontext *context)
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{
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struct iwch_dev *rhp = to_iwch_dev(context->device);
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struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
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struct iwch_mm_entry *mm, *tmp;
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pr_debug("%s context %p\n", __func__, context);
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list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
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kfree(mm);
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cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
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}
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static int iwch_alloc_ucontext(struct ib_ucontext *ucontext,
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struct ib_udata *udata)
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{
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struct ib_device *ibdev = ucontext->device;
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struct iwch_ucontext *context = to_iwch_ucontext(ucontext);
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struct iwch_dev *rhp = to_iwch_dev(ibdev);
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pr_debug("%s ibdev %p\n", __func__, ibdev);
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cxio_init_ucontext(&rhp->rdev, &context->uctx);
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INIT_LIST_HEAD(&context->mmaps);
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spin_lock_init(&context->mmap_lock);
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return 0;
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}
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static void iwch_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
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{
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struct iwch_cq *chp;
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pr_debug("%s ib_cq %p\n", __func__, ib_cq);
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chp = to_iwch_cq(ib_cq);
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xa_erase_irq(&chp->rhp->cqs, chp->cq.cqid);
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atomic_dec(&chp->refcnt);
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wait_event(chp->wait, !atomic_read(&chp->refcnt));
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cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
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}
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static int iwch_create_cq(struct ib_cq *ibcq,
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const struct ib_cq_init_attr *attr,
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struct ib_udata *udata)
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{
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struct ib_device *ibdev = ibcq->device;
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int entries = attr->cqe;
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struct iwch_dev *rhp = to_iwch_dev(ibcq->device);
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struct iwch_cq *chp = to_iwch_cq(ibcq);
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struct iwch_create_cq_resp uresp;
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struct iwch_create_cq_req ureq;
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static int warned;
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size_t resplen;
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pr_debug("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
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if (attr->flags)
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return -EINVAL;
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if (udata) {
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if (!t3a_device(rhp)) {
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if (ib_copy_from_udata(&ureq, udata, sizeof(ureq)))
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return -EFAULT;
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chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr;
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}
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}
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if (t3a_device(rhp)) {
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/*
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* T3A: Add some fluff to handle extra CQEs inserted
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* for various errors.
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* Additional CQE possibilities:
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* TERMINATE,
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* incoming RDMA WRITE Failures
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* incoming RDMA READ REQUEST FAILUREs
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* NOTE: We cannot ensure the CQ won't overflow.
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*/
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entries += 16;
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}
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entries = roundup_pow_of_two(entries);
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chp->cq.size_log2 = ilog2(entries);
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if (cxio_create_cq(&rhp->rdev, &chp->cq, !udata))
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return -ENOMEM;
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chp->rhp = rhp;
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chp->ibcq.cqe = 1 << chp->cq.size_log2;
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spin_lock_init(&chp->lock);
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spin_lock_init(&chp->comp_handler_lock);
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atomic_set(&chp->refcnt, 1);
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init_waitqueue_head(&chp->wait);
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if (xa_store_irq(&rhp->cqs, chp->cq.cqid, chp, GFP_KERNEL)) {
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cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
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return -ENOMEM;
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}
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if (udata) {
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struct iwch_mm_entry *mm;
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struct iwch_ucontext *ucontext = rdma_udata_to_drv_context(
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udata, struct iwch_ucontext, ibucontext);
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mm = kmalloc(sizeof(*mm), GFP_KERNEL);
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if (!mm) {
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iwch_destroy_cq(&chp->ibcq, udata);
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return -ENOMEM;
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}
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uresp.cqid = chp->cq.cqid;
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uresp.size_log2 = chp->cq.size_log2;
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spin_lock(&ucontext->mmap_lock);
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uresp.key = ucontext->key;
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ucontext->key += PAGE_SIZE;
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spin_unlock(&ucontext->mmap_lock);
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mm->key = uresp.key;
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mm->addr = virt_to_phys(chp->cq.queue);
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if (udata->outlen < sizeof(uresp)) {
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if (!warned++)
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pr_warn("Warning - downlevel libcxgb3 (non-fatal)\n");
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mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
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sizeof(struct t3_cqe));
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resplen = sizeof(struct iwch_create_cq_resp_v0);
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} else {
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mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) *
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sizeof(struct t3_cqe));
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uresp.memsize = mm->len;
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uresp.reserved = 0;
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resplen = sizeof(uresp);
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}
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if (ib_copy_to_udata(udata, &uresp, resplen)) {
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kfree(mm);
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iwch_destroy_cq(&chp->ibcq, udata);
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return -EFAULT;
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}
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insert_mmap(ucontext, mm);
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}
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pr_debug("created cqid 0x%0x chp %p size 0x%0x, dma_addr %pad\n",
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chp->cq.cqid, chp, (1 << chp->cq.size_log2),
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&chp->cq.dma_addr);
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return 0;
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}
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static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
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{
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struct iwch_dev *rhp;
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struct iwch_cq *chp;
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enum t3_cq_opcode cq_op;
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int err;
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unsigned long flag;
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u32 rptr;
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chp = to_iwch_cq(ibcq);
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rhp = chp->rhp;
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if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
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cq_op = CQ_ARM_SE;
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else
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cq_op = CQ_ARM_AN;
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if (chp->user_rptr_addr) {
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if (get_user(rptr, chp->user_rptr_addr))
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return -EFAULT;
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spin_lock_irqsave(&chp->lock, flag);
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chp->cq.rptr = rptr;
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} else
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spin_lock_irqsave(&chp->lock, flag);
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pr_debug("%s rptr 0x%x\n", __func__, chp->cq.rptr);
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err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
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spin_unlock_irqrestore(&chp->lock, flag);
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if (err < 0)
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pr_err("Error %d rearming CQID 0x%x\n", err, chp->cq.cqid);
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if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
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err = 0;
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return err;
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}
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static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
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{
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int len = vma->vm_end - vma->vm_start;
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u32 key = vma->vm_pgoff << PAGE_SHIFT;
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struct cxio_rdev *rdev_p;
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int ret = 0;
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struct iwch_mm_entry *mm;
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struct iwch_ucontext *ucontext;
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u64 addr;
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pr_debug("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
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key, len);
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if (vma->vm_start & (PAGE_SIZE-1)) {
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return -EINVAL;
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}
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rdev_p = &(to_iwch_dev(context->device)->rdev);
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ucontext = to_iwch_ucontext(context);
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mm = remove_mmap(ucontext, key, len);
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if (!mm)
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return -EINVAL;
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addr = mm->addr;
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kfree(mm);
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if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
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(addr < (rdev_p->rnic_info.udbell_physbase +
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rdev_p->rnic_info.udbell_len))) {
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/*
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* Map T3 DB register.
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*/
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if (vma->vm_flags & VM_READ) {
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return -EPERM;
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}
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
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vma->vm_flags &= ~VM_MAYREAD;
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ret = io_remap_pfn_range(vma, vma->vm_start,
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addr >> PAGE_SHIFT,
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len, vma->vm_page_prot);
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} else {
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/*
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* Map WQ or CQ contig dma memory...
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*/
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ret = remap_pfn_range(vma, vma->vm_start,
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addr >> PAGE_SHIFT,
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len, vma->vm_page_prot);
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}
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return ret;
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}
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static void iwch_deallocate_pd(struct ib_pd *pd, struct ib_udata *udata)
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{
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struct iwch_dev *rhp;
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struct iwch_pd *php;
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php = to_iwch_pd(pd);
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rhp = php->rhp;
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pr_debug("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
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cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
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}
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static int iwch_allocate_pd(struct ib_pd *pd, struct ib_udata *udata)
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{
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struct iwch_pd *php = to_iwch_pd(pd);
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struct ib_device *ibdev = pd->device;
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u32 pdid;
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struct iwch_dev *rhp;
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pr_debug("%s ibdev %p\n", __func__, ibdev);
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rhp = (struct iwch_dev *) ibdev;
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pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
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if (!pdid)
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return -EINVAL;
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php->pdid = pdid;
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php->rhp = rhp;
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if (udata) {
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struct iwch_alloc_pd_resp resp = {.pdid = php->pdid};
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if (ib_copy_to_udata(udata, &resp, sizeof(resp))) {
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iwch_deallocate_pd(&php->ibpd, udata);
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return -EFAULT;
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}
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}
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pr_debug("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
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return 0;
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}
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static int iwch_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
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{
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struct iwch_dev *rhp;
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struct iwch_mr *mhp;
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u32 mmid;
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pr_debug("%s ib_mr %p\n", __func__, ib_mr);
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mhp = to_iwch_mr(ib_mr);
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kfree(mhp->pages);
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rhp = mhp->rhp;
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mmid = mhp->attr.stag >> 8;
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cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
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mhp->attr.pbl_addr);
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iwch_free_pbl(mhp);
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xa_erase_irq(&rhp->mrs, mmid);
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if (mhp->kva)
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kfree((void *) (unsigned long) mhp->kva);
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ib_umem_release(mhp->umem);
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pr_debug("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
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kfree(mhp);
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return 0;
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}
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static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
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{
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const u64 total_size = 0xffffffff;
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const u64 mask = (total_size + PAGE_SIZE - 1) & PAGE_MASK;
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struct iwch_pd *php = to_iwch_pd(pd);
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struct iwch_dev *rhp = php->rhp;
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struct iwch_mr *mhp;
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__be64 *page_list;
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int shift = 26, npages, ret, i;
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pr_debug("%s ib_pd %p\n", __func__, pd);
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/*
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* T3 only supports 32 bits of size.
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*/
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if (sizeof(phys_addr_t) > 4) {
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pr_warn_once("Cannot support dma_mrs on this platform\n");
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return ERR_PTR(-ENOTSUPP);
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}
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mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
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if (!mhp)
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return ERR_PTR(-ENOMEM);
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|
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mhp->rhp = rhp;
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npages = (total_size + (1ULL << shift) - 1) >> shift;
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if (!npages) {
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ret = -EINVAL;
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goto err;
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}
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page_list = kmalloc_array(npages, sizeof(u64), GFP_KERNEL);
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if (!page_list) {
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ret = -ENOMEM;
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goto err;
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}
|
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for (i = 0; i < npages; i++)
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page_list[i] = cpu_to_be64((u64)i << shift);
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|
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pr_debug("%s mask 0x%llx shift %d len %lld pbl_size %d\n",
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__func__, mask, shift, total_size, npages);
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|
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ret = iwch_alloc_pbl(mhp, npages);
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if (ret) {
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kfree(page_list);
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goto err_pbl;
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}
|
|
|
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ret = iwch_write_pbl(mhp, page_list, npages, 0);
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kfree(page_list);
|
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if (ret)
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goto err_pbl;
|
|
|
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mhp->attr.pdid = php->pdid;
|
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mhp->attr.zbva = 0;
|
|
|
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mhp->attr.perms = iwch_ib_to_tpt_access(acc);
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mhp->attr.va_fbo = 0;
|
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mhp->attr.page_size = shift - 12;
|
|
|
|
mhp->attr.len = (u32) total_size;
|
|
mhp->attr.pbl_size = npages;
|
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ret = iwch_register_mem(rhp, php, mhp, shift);
|
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if (ret)
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|
goto err_pbl;
|
|
|
|
return &mhp->ibmr;
|
|
|
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err_pbl:
|
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iwch_free_pbl(mhp);
|
|
|
|
err:
|
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kfree(mhp);
|
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return ERR_PTR(ret);
|
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}
|
|
|
|
static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
|
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u64 virt, int acc, struct ib_udata *udata)
|
|
{
|
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__be64 *pages;
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int shift, n, i;
|
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int err = 0;
|
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struct iwch_dev *rhp;
|
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struct iwch_pd *php;
|
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struct iwch_mr *mhp;
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struct iwch_reg_user_mr_resp uresp;
|
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struct sg_dma_page_iter sg_iter;
|
|
pr_debug("%s ib_pd %p\n", __func__, pd);
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|
|
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php = to_iwch_pd(pd);
|
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rhp = php->rhp;
|
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mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
|
|
if (!mhp)
|
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return ERR_PTR(-ENOMEM);
|
|
|
|
mhp->rhp = rhp;
|
|
|
|
mhp->umem = ib_umem_get(udata, start, length, acc, 0);
|
|
if (IS_ERR(mhp->umem)) {
|
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err = PTR_ERR(mhp->umem);
|
|
kfree(mhp);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
shift = PAGE_SHIFT;
|
|
|
|
n = ib_umem_num_pages(mhp->umem);
|
|
|
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err = iwch_alloc_pbl(mhp, n);
|
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if (err)
|
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goto err;
|
|
|
|
pages = (__be64 *) __get_free_page(GFP_KERNEL);
|
|
if (!pages) {
|
|
err = -ENOMEM;
|
|
goto err_pbl;
|
|
}
|
|
|
|
i = n = 0;
|
|
|
|
for_each_sg_dma_page(mhp->umem->sg_head.sgl, &sg_iter, mhp->umem->nmap, 0) {
|
|
pages[i++] = cpu_to_be64(sg_page_iter_dma_address(&sg_iter));
|
|
if (i == PAGE_SIZE / sizeof(*pages)) {
|
|
err = iwch_write_pbl(mhp, pages, i, n);
|
|
if (err)
|
|
goto pbl_done;
|
|
n += i;
|
|
i = 0;
|
|
}
|
|
}
|
|
|
|
if (i)
|
|
err = iwch_write_pbl(mhp, pages, i, n);
|
|
|
|
pbl_done:
|
|
free_page((unsigned long) pages);
|
|
if (err)
|
|
goto err_pbl;
|
|
|
|
mhp->attr.pdid = php->pdid;
|
|
mhp->attr.zbva = 0;
|
|
mhp->attr.perms = iwch_ib_to_tpt_access(acc);
|
|
mhp->attr.va_fbo = virt;
|
|
mhp->attr.page_size = shift - 12;
|
|
mhp->attr.len = (u32) length;
|
|
|
|
err = iwch_register_mem(rhp, php, mhp, shift);
|
|
if (err)
|
|
goto err_pbl;
|
|
|
|
if (udata && !t3a_device(rhp)) {
|
|
uresp.pbl_addr = (mhp->attr.pbl_addr -
|
|
rhp->rdev.rnic_info.pbl_base) >> 3;
|
|
pr_debug("%s user resp pbl_addr 0x%x\n", __func__,
|
|
uresp.pbl_addr);
|
|
|
|
if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
|
|
iwch_dereg_mr(&mhp->ibmr, udata);
|
|
err = -EFAULT;
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return &mhp->ibmr;
|
|
|
|
err_pbl:
|
|
iwch_free_pbl(mhp);
|
|
|
|
err:
|
|
ib_umem_release(mhp->umem);
|
|
kfree(mhp);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct iwch_dev *rhp;
|
|
struct iwch_pd *php;
|
|
struct iwch_mw *mhp;
|
|
u32 mmid;
|
|
u32 stag = 0;
|
|
int ret;
|
|
|
|
if (type != IB_MW_TYPE_1)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
php = to_iwch_pd(pd);
|
|
rhp = php->rhp;
|
|
mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
|
|
if (!mhp)
|
|
return ERR_PTR(-ENOMEM);
|
|
ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
|
|
if (ret) {
|
|
kfree(mhp);
|
|
return ERR_PTR(ret);
|
|
}
|
|
mhp->rhp = rhp;
|
|
mhp->attr.pdid = php->pdid;
|
|
mhp->attr.type = TPT_MW;
|
|
mhp->attr.stag = stag;
|
|
mmid = (stag) >> 8;
|
|
mhp->ibmw.rkey = stag;
|
|
if (xa_insert_irq(&rhp->mrs, mmid, mhp, GFP_KERNEL)) {
|
|
cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
|
|
kfree(mhp);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
pr_debug("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
|
|
return &(mhp->ibmw);
|
|
}
|
|
|
|
static int iwch_dealloc_mw(struct ib_mw *mw)
|
|
{
|
|
struct iwch_dev *rhp;
|
|
struct iwch_mw *mhp;
|
|
u32 mmid;
|
|
|
|
mhp = to_iwch_mw(mw);
|
|
rhp = mhp->rhp;
|
|
mmid = (mw->rkey) >> 8;
|
|
cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
|
|
xa_erase_irq(&rhp->mrs, mmid);
|
|
pr_debug("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
|
|
kfree(mhp);
|
|
return 0;
|
|
}
|
|
|
|
static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
|
|
u32 max_num_sg, struct ib_udata *udata)
|
|
{
|
|
struct iwch_dev *rhp;
|
|
struct iwch_pd *php;
|
|
struct iwch_mr *mhp;
|
|
u32 mmid;
|
|
u32 stag = 0;
|
|
int ret = -ENOMEM;
|
|
|
|
if (mr_type != IB_MR_TYPE_MEM_REG ||
|
|
max_num_sg > T3_MAX_FASTREG_DEPTH)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
php = to_iwch_pd(pd);
|
|
rhp = php->rhp;
|
|
mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
|
|
if (!mhp)
|
|
goto err;
|
|
|
|
mhp->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL);
|
|
if (!mhp->pages)
|
|
goto pl_err;
|
|
|
|
mhp->rhp = rhp;
|
|
ret = iwch_alloc_pbl(mhp, max_num_sg);
|
|
if (ret)
|
|
goto err1;
|
|
mhp->attr.pbl_size = max_num_sg;
|
|
ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
|
|
mhp->attr.pbl_size, mhp->attr.pbl_addr);
|
|
if (ret)
|
|
goto err2;
|
|
mhp->attr.pdid = php->pdid;
|
|
mhp->attr.type = TPT_NON_SHARED_MR;
|
|
mhp->attr.stag = stag;
|
|
mhp->attr.state = 1;
|
|
mmid = (stag) >> 8;
|
|
mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
|
|
ret = xa_insert_irq(&rhp->mrs, mmid, mhp, GFP_KERNEL);
|
|
if (ret)
|
|
goto err3;
|
|
|
|
pr_debug("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
|
|
return &(mhp->ibmr);
|
|
err3:
|
|
cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size,
|
|
mhp->attr.pbl_addr);
|
|
err2:
|
|
iwch_free_pbl(mhp);
|
|
err1:
|
|
kfree(mhp->pages);
|
|
pl_err:
|
|
kfree(mhp);
|
|
err:
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static int iwch_set_page(struct ib_mr *ibmr, u64 addr)
|
|
{
|
|
struct iwch_mr *mhp = to_iwch_mr(ibmr);
|
|
|
|
if (unlikely(mhp->npages == mhp->attr.pbl_size))
|
|
return -ENOMEM;
|
|
|
|
mhp->pages[mhp->npages++] = addr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iwch_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
|
|
int sg_nents, unsigned int *sg_offset)
|
|
{
|
|
struct iwch_mr *mhp = to_iwch_mr(ibmr);
|
|
|
|
mhp->npages = 0;
|
|
|
|
return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, iwch_set_page);
|
|
}
|
|
|
|
static int iwch_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata)
|
|
{
|
|
struct iwch_dev *rhp;
|
|
struct iwch_qp *qhp;
|
|
struct iwch_qp_attributes attrs;
|
|
struct iwch_ucontext *ucontext;
|
|
|
|
qhp = to_iwch_qp(ib_qp);
|
|
rhp = qhp->rhp;
|
|
|
|
attrs.next_state = IWCH_QP_STATE_ERROR;
|
|
iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
|
|
wait_event(qhp->wait, !qhp->ep);
|
|
|
|
xa_erase_irq(&rhp->qps, qhp->wq.qpid);
|
|
|
|
atomic_dec(&qhp->refcnt);
|
|
wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
|
|
|
|
ucontext = rdma_udata_to_drv_context(udata, struct iwch_ucontext,
|
|
ibucontext);
|
|
cxio_destroy_qp(&rhp->rdev, &qhp->wq,
|
|
ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
|
|
|
|
pr_debug("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
|
|
ib_qp, qhp->wq.qpid, qhp);
|
|
kfree(qhp);
|
|
return 0;
|
|
}
|
|
|
|
static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
|
|
struct ib_qp_init_attr *attrs,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct iwch_dev *rhp;
|
|
struct iwch_qp *qhp;
|
|
struct iwch_pd *php;
|
|
struct iwch_cq *schp;
|
|
struct iwch_cq *rchp;
|
|
struct iwch_create_qp_resp uresp;
|
|
int wqsize, sqsize, rqsize;
|
|
struct iwch_ucontext *ucontext;
|
|
|
|
pr_debug("%s ib_pd %p\n", __func__, pd);
|
|
if (attrs->qp_type != IB_QPT_RC)
|
|
return ERR_PTR(-EINVAL);
|
|
php = to_iwch_pd(pd);
|
|
rhp = php->rhp;
|
|
schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
|
|
rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
|
|
if (!schp || !rchp)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
/* The RQT size must be # of entries + 1 rounded up to a power of two */
|
|
rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
|
|
if (rqsize == attrs->cap.max_recv_wr)
|
|
rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
|
|
|
|
/* T3 doesn't support RQT depth < 16 */
|
|
if (rqsize < 16)
|
|
rqsize = 16;
|
|
|
|
if (rqsize > T3_MAX_RQ_SIZE)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (attrs->cap.max_inline_data > T3_MAX_INLINE)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
/*
|
|
* NOTE: The SQ and total WQ sizes don't need to be
|
|
* a power of two. However, all the code assumes
|
|
* they are. EG: Q_FREECNT() and friends.
|
|
*/
|
|
sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
|
|
wqsize = roundup_pow_of_two(rqsize + sqsize);
|
|
|
|
/*
|
|
* Kernel users need more wq space for fastreg WRs which can take
|
|
* 2 WR fragments.
|
|
*/
|
|
ucontext = rdma_udata_to_drv_context(udata, struct iwch_ucontext,
|
|
ibucontext);
|
|
if (!ucontext && wqsize < (rqsize + (2 * sqsize)))
|
|
wqsize = roundup_pow_of_two(rqsize +
|
|
roundup_pow_of_two(attrs->cap.max_send_wr * 2));
|
|
pr_debug("%s wqsize %d sqsize %d rqsize %d\n", __func__,
|
|
wqsize, sqsize, rqsize);
|
|
qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
|
|
if (!qhp)
|
|
return ERR_PTR(-ENOMEM);
|
|
qhp->wq.size_log2 = ilog2(wqsize);
|
|
qhp->wq.rq_size_log2 = ilog2(rqsize);
|
|
qhp->wq.sq_size_log2 = ilog2(sqsize);
|
|
if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
|
|
ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
|
|
kfree(qhp);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
attrs->cap.max_recv_wr = rqsize - 1;
|
|
attrs->cap.max_send_wr = sqsize;
|
|
attrs->cap.max_inline_data = T3_MAX_INLINE;
|
|
|
|
qhp->rhp = rhp;
|
|
qhp->attr.pd = php->pdid;
|
|
qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
|
|
qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
|
|
qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
|
|
qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
|
|
qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
|
|
qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
|
|
qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
|
|
qhp->attr.state = IWCH_QP_STATE_IDLE;
|
|
qhp->attr.next_state = IWCH_QP_STATE_IDLE;
|
|
|
|
/*
|
|
* XXX - These don't get passed in from the openib user
|
|
* at create time. The CM sets them via a QP modify.
|
|
* Need to fix... I think the CM should
|
|
*/
|
|
qhp->attr.enable_rdma_read = 1;
|
|
qhp->attr.enable_rdma_write = 1;
|
|
qhp->attr.enable_bind = 1;
|
|
qhp->attr.max_ord = 1;
|
|
qhp->attr.max_ird = 1;
|
|
|
|
spin_lock_init(&qhp->lock);
|
|
init_waitqueue_head(&qhp->wait);
|
|
atomic_set(&qhp->refcnt, 1);
|
|
|
|
if (xa_store_irq(&rhp->qps, qhp->wq.qpid, qhp, GFP_KERNEL)) {
|
|
cxio_destroy_qp(&rhp->rdev, &qhp->wq,
|
|
ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
|
|
kfree(qhp);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
if (udata) {
|
|
|
|
struct iwch_mm_entry *mm1, *mm2;
|
|
|
|
mm1 = kmalloc(sizeof(*mm1), GFP_KERNEL);
|
|
if (!mm1) {
|
|
iwch_destroy_qp(&qhp->ibqp, udata);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
mm2 = kmalloc(sizeof(*mm2), GFP_KERNEL);
|
|
if (!mm2) {
|
|
kfree(mm1);
|
|
iwch_destroy_qp(&qhp->ibqp, udata);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
uresp.qpid = qhp->wq.qpid;
|
|
uresp.size_log2 = qhp->wq.size_log2;
|
|
uresp.sq_size_log2 = qhp->wq.sq_size_log2;
|
|
uresp.rq_size_log2 = qhp->wq.rq_size_log2;
|
|
spin_lock(&ucontext->mmap_lock);
|
|
uresp.key = ucontext->key;
|
|
ucontext->key += PAGE_SIZE;
|
|
uresp.db_key = ucontext->key;
|
|
ucontext->key += PAGE_SIZE;
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
|
|
kfree(mm1);
|
|
kfree(mm2);
|
|
iwch_destroy_qp(&qhp->ibqp, udata);
|
|
return ERR_PTR(-EFAULT);
|
|
}
|
|
mm1->key = uresp.key;
|
|
mm1->addr = virt_to_phys(qhp->wq.queue);
|
|
mm1->len = PAGE_ALIGN(wqsize * sizeof(union t3_wr));
|
|
insert_mmap(ucontext, mm1);
|
|
mm2->key = uresp.db_key;
|
|
mm2->addr = qhp->wq.udb & PAGE_MASK;
|
|
mm2->len = PAGE_SIZE;
|
|
insert_mmap(ucontext, mm2);
|
|
}
|
|
qhp->ibqp.qp_num = qhp->wq.qpid;
|
|
pr_debug(
|
|
"%s sq_num_entries %d, rq_num_entries %d qpid 0x%0x qhp %p dma_addr %pad size %d rq_addr 0x%x\n",
|
|
__func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
|
|
qhp->wq.qpid, qhp, &qhp->wq.dma_addr, 1 << qhp->wq.size_log2,
|
|
qhp->wq.rq_addr);
|
|
return &qhp->ibqp;
|
|
}
|
|
|
|
static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
|
|
int attr_mask, struct ib_udata *udata)
|
|
{
|
|
struct iwch_dev *rhp;
|
|
struct iwch_qp *qhp;
|
|
enum iwch_qp_attr_mask mask = 0;
|
|
struct iwch_qp_attributes attrs = {};
|
|
|
|
pr_debug("%s ib_qp %p\n", __func__, ibqp);
|
|
|
|
/* iwarp does not support the RTR state */
|
|
if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
|
|
attr_mask &= ~IB_QP_STATE;
|
|
|
|
/* Make sure we still have something left to do */
|
|
if (!attr_mask)
|
|
return 0;
|
|
|
|
qhp = to_iwch_qp(ibqp);
|
|
rhp = qhp->rhp;
|
|
|
|
attrs.next_state = iwch_convert_state(attr->qp_state);
|
|
attrs.enable_rdma_read = (attr->qp_access_flags &
|
|
IB_ACCESS_REMOTE_READ) ? 1 : 0;
|
|
attrs.enable_rdma_write = (attr->qp_access_flags &
|
|
IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
|
|
attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
|
|
|
|
|
|
mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
|
|
mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
|
|
(IWCH_QP_ATTR_ENABLE_RDMA_READ |
|
|
IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
|
|
IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
|
|
|
|
return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
|
|
}
|
|
|
|
void iwch_qp_add_ref(struct ib_qp *qp)
|
|
{
|
|
pr_debug("%s ib_qp %p\n", __func__, qp);
|
|
atomic_inc(&(to_iwch_qp(qp)->refcnt));
|
|
}
|
|
|
|
void iwch_qp_rem_ref(struct ib_qp *qp)
|
|
{
|
|
pr_debug("%s ib_qp %p\n", __func__, qp);
|
|
if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
|
|
wake_up(&(to_iwch_qp(qp)->wait));
|
|
}
|
|
|
|
static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
|
|
{
|
|
pr_debug("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
|
|
return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
|
|
}
|
|
|
|
|
|
static int iwch_query_pkey(struct ib_device *ibdev,
|
|
u8 port, u16 index, u16 * pkey)
|
|
{
|
|
pr_debug("%s ibdev %p\n", __func__, ibdev);
|
|
*pkey = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int iwch_query_gid(struct ib_device *ibdev, u8 port,
|
|
int index, union ib_gid *gid)
|
|
{
|
|
struct iwch_dev *dev;
|
|
|
|
pr_debug("%s ibdev %p, port %d, index %d, gid %p\n",
|
|
__func__, ibdev, port, index, gid);
|
|
dev = to_iwch_dev(ibdev);
|
|
BUG_ON(port == 0 || port > 2);
|
|
memset(&(gid->raw[0]), 0, sizeof(gid->raw));
|
|
memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
|
|
return 0;
|
|
}
|
|
|
|
static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev)
|
|
{
|
|
struct ethtool_drvinfo info;
|
|
struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
|
|
char *cp, *next;
|
|
unsigned fw_maj, fw_min, fw_mic;
|
|
|
|
lldev->ethtool_ops->get_drvinfo(lldev, &info);
|
|
|
|
next = info.fw_version + 1;
|
|
cp = strsep(&next, ".");
|
|
sscanf(cp, "%i", &fw_maj);
|
|
cp = strsep(&next, ".");
|
|
sscanf(cp, "%i", &fw_min);
|
|
cp = strsep(&next, ".");
|
|
sscanf(cp, "%i", &fw_mic);
|
|
|
|
return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) |
|
|
(fw_mic & 0xffff);
|
|
}
|
|
|
|
static int iwch_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
|
|
struct ib_udata *uhw)
|
|
{
|
|
|
|
struct iwch_dev *dev;
|
|
|
|
pr_debug("%s ibdev %p\n", __func__, ibdev);
|
|
|
|
if (uhw->inlen || uhw->outlen)
|
|
return -EINVAL;
|
|
|
|
dev = to_iwch_dev(ibdev);
|
|
memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
|
|
props->hw_ver = dev->rdev.t3cdev_p->type;
|
|
props->fw_ver = fw_vers_string_to_u64(dev);
|
|
props->device_cap_flags = dev->device_cap_flags;
|
|
props->page_size_cap = dev->attr.mem_pgsizes_bitmask;
|
|
props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
|
|
props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
|
|
props->max_mr_size = dev->attr.max_mr_size;
|
|
props->max_qp = dev->attr.max_qps;
|
|
props->max_qp_wr = dev->attr.max_wrs;
|
|
props->max_send_sge = dev->attr.max_sge_per_wr;
|
|
props->max_recv_sge = dev->attr.max_sge_per_wr;
|
|
props->max_sge_rd = 1;
|
|
props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
|
|
props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
|
|
props->max_cq = dev->attr.max_cqs;
|
|
props->max_cqe = dev->attr.max_cqes_per_cq;
|
|
props->max_mr = dev->attr.max_mem_regs;
|
|
props->max_pd = dev->attr.max_pds;
|
|
props->local_ca_ack_delay = 0;
|
|
props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iwch_query_port(struct ib_device *ibdev,
|
|
u8 port, struct ib_port_attr *props)
|
|
{
|
|
pr_debug("%s ibdev %p\n", __func__, ibdev);
|
|
|
|
props->port_cap_flags =
|
|
IB_PORT_CM_SUP |
|
|
IB_PORT_SNMP_TUNNEL_SUP |
|
|
IB_PORT_REINIT_SUP |
|
|
IB_PORT_DEVICE_MGMT_SUP |
|
|
IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
|
|
props->gid_tbl_len = 1;
|
|
props->pkey_tbl_len = 1;
|
|
props->active_width = 2;
|
|
props->active_speed = IB_SPEED_DDR;
|
|
props->max_msg_sz = -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t hw_rev_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwch_dev *iwch_dev =
|
|
rdma_device_to_drv_device(dev, struct iwch_dev, ibdev);
|
|
|
|
pr_debug("%s dev 0x%p\n", __func__, dev);
|
|
return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
|
|
}
|
|
static DEVICE_ATTR_RO(hw_rev);
|
|
|
|
static ssize_t hca_type_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwch_dev *iwch_dev =
|
|
rdma_device_to_drv_device(dev, struct iwch_dev, ibdev);
|
|
struct ethtool_drvinfo info;
|
|
struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
|
|
|
|
pr_debug("%s dev 0x%p\n", __func__, dev);
|
|
lldev->ethtool_ops->get_drvinfo(lldev, &info);
|
|
return sprintf(buf, "%s\n", info.driver);
|
|
}
|
|
static DEVICE_ATTR_RO(hca_type);
|
|
|
|
static ssize_t board_id_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwch_dev *iwch_dev =
|
|
rdma_device_to_drv_device(dev, struct iwch_dev, ibdev);
|
|
|
|
pr_debug("%s dev 0x%p\n", __func__, dev);
|
|
return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
|
|
iwch_dev->rdev.rnic_info.pdev->device);
|
|
}
|
|
static DEVICE_ATTR_RO(board_id);
|
|
|
|
enum counters {
|
|
IPINRECEIVES,
|
|
IPINHDRERRORS,
|
|
IPINADDRERRORS,
|
|
IPINUNKNOWNPROTOS,
|
|
IPINDISCARDS,
|
|
IPINDELIVERS,
|
|
IPOUTREQUESTS,
|
|
IPOUTDISCARDS,
|
|
IPOUTNOROUTES,
|
|
IPREASMTIMEOUT,
|
|
IPREASMREQDS,
|
|
IPREASMOKS,
|
|
IPREASMFAILS,
|
|
TCPACTIVEOPENS,
|
|
TCPPASSIVEOPENS,
|
|
TCPATTEMPTFAILS,
|
|
TCPESTABRESETS,
|
|
TCPCURRESTAB,
|
|
TCPINSEGS,
|
|
TCPOUTSEGS,
|
|
TCPRETRANSSEGS,
|
|
TCPINERRS,
|
|
TCPOUTRSTS,
|
|
TCPRTOMIN,
|
|
TCPRTOMAX,
|
|
NR_COUNTERS
|
|
};
|
|
|
|
static const char * const names[] = {
|
|
[IPINRECEIVES] = "ipInReceives",
|
|
[IPINHDRERRORS] = "ipInHdrErrors",
|
|
[IPINADDRERRORS] = "ipInAddrErrors",
|
|
[IPINUNKNOWNPROTOS] = "ipInUnknownProtos",
|
|
[IPINDISCARDS] = "ipInDiscards",
|
|
[IPINDELIVERS] = "ipInDelivers",
|
|
[IPOUTREQUESTS] = "ipOutRequests",
|
|
[IPOUTDISCARDS] = "ipOutDiscards",
|
|
[IPOUTNOROUTES] = "ipOutNoRoutes",
|
|
[IPREASMTIMEOUT] = "ipReasmTimeout",
|
|
[IPREASMREQDS] = "ipReasmReqds",
|
|
[IPREASMOKS] = "ipReasmOKs",
|
|
[IPREASMFAILS] = "ipReasmFails",
|
|
[TCPACTIVEOPENS] = "tcpActiveOpens",
|
|
[TCPPASSIVEOPENS] = "tcpPassiveOpens",
|
|
[TCPATTEMPTFAILS] = "tcpAttemptFails",
|
|
[TCPESTABRESETS] = "tcpEstabResets",
|
|
[TCPCURRESTAB] = "tcpCurrEstab",
|
|
[TCPINSEGS] = "tcpInSegs",
|
|
[TCPOUTSEGS] = "tcpOutSegs",
|
|
[TCPRETRANSSEGS] = "tcpRetransSegs",
|
|
[TCPINERRS] = "tcpInErrs",
|
|
[TCPOUTRSTS] = "tcpOutRsts",
|
|
[TCPRTOMIN] = "tcpRtoMin",
|
|
[TCPRTOMAX] = "tcpRtoMax",
|
|
};
|
|
|
|
static struct rdma_hw_stats *iwch_alloc_stats(struct ib_device *ibdev,
|
|
u8 port_num)
|
|
{
|
|
BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
|
|
|
|
/* Our driver only supports device level stats */
|
|
if (port_num != 0)
|
|
return NULL;
|
|
|
|
return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
|
|
RDMA_HW_STATS_DEFAULT_LIFESPAN);
|
|
}
|
|
|
|
static int iwch_get_mib(struct ib_device *ibdev, struct rdma_hw_stats *stats,
|
|
u8 port, int index)
|
|
{
|
|
struct iwch_dev *dev;
|
|
struct tp_mib_stats m;
|
|
int ret;
|
|
|
|
if (port != 0 || !stats)
|
|
return -ENOSYS;
|
|
|
|
pr_debug("%s ibdev %p\n", __func__, ibdev);
|
|
dev = to_iwch_dev(ibdev);
|
|
ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m);
|
|
if (ret)
|
|
return -ENOSYS;
|
|
|
|
stats->value[IPINRECEIVES] = ((u64)m.ipInReceive_hi << 32) + m.ipInReceive_lo;
|
|
stats->value[IPINHDRERRORS] = ((u64)m.ipInHdrErrors_hi << 32) + m.ipInHdrErrors_lo;
|
|
stats->value[IPINADDRERRORS] = ((u64)m.ipInAddrErrors_hi << 32) + m.ipInAddrErrors_lo;
|
|
stats->value[IPINUNKNOWNPROTOS] = ((u64)m.ipInUnknownProtos_hi << 32) + m.ipInUnknownProtos_lo;
|
|
stats->value[IPINDISCARDS] = ((u64)m.ipInDiscards_hi << 32) + m.ipInDiscards_lo;
|
|
stats->value[IPINDELIVERS] = ((u64)m.ipInDelivers_hi << 32) + m.ipInDelivers_lo;
|
|
stats->value[IPOUTREQUESTS] = ((u64)m.ipOutRequests_hi << 32) + m.ipOutRequests_lo;
|
|
stats->value[IPOUTDISCARDS] = ((u64)m.ipOutDiscards_hi << 32) + m.ipOutDiscards_lo;
|
|
stats->value[IPOUTNOROUTES] = ((u64)m.ipOutNoRoutes_hi << 32) + m.ipOutNoRoutes_lo;
|
|
stats->value[IPREASMTIMEOUT] = m.ipReasmTimeout;
|
|
stats->value[IPREASMREQDS] = m.ipReasmReqds;
|
|
stats->value[IPREASMOKS] = m.ipReasmOKs;
|
|
stats->value[IPREASMFAILS] = m.ipReasmFails;
|
|
stats->value[TCPACTIVEOPENS] = m.tcpActiveOpens;
|
|
stats->value[TCPPASSIVEOPENS] = m.tcpPassiveOpens;
|
|
stats->value[TCPATTEMPTFAILS] = m.tcpAttemptFails;
|
|
stats->value[TCPESTABRESETS] = m.tcpEstabResets;
|
|
stats->value[TCPCURRESTAB] = m.tcpOutRsts;
|
|
stats->value[TCPINSEGS] = m.tcpCurrEstab;
|
|
stats->value[TCPOUTSEGS] = ((u64)m.tcpInSegs_hi << 32) + m.tcpInSegs_lo;
|
|
stats->value[TCPRETRANSSEGS] = ((u64)m.tcpOutSegs_hi << 32) + m.tcpOutSegs_lo;
|
|
stats->value[TCPINERRS] = ((u64)m.tcpRetransSeg_hi << 32) + m.tcpRetransSeg_lo,
|
|
stats->value[TCPOUTRSTS] = ((u64)m.tcpInErrs_hi << 32) + m.tcpInErrs_lo;
|
|
stats->value[TCPRTOMIN] = m.tcpRtoMin;
|
|
stats->value[TCPRTOMAX] = m.tcpRtoMax;
|
|
|
|
return stats->num_counters;
|
|
}
|
|
|
|
static struct attribute *iwch_class_attributes[] = {
|
|
&dev_attr_hw_rev.attr,
|
|
&dev_attr_hca_type.attr,
|
|
&dev_attr_board_id.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group iwch_attr_group = {
|
|
.attrs = iwch_class_attributes,
|
|
};
|
|
|
|
static int iwch_port_immutable(struct ib_device *ibdev, u8 port_num,
|
|
struct ib_port_immutable *immutable)
|
|
{
|
|
struct ib_port_attr attr;
|
|
int err;
|
|
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
|
|
|
|
err = ib_query_port(ibdev, port_num, &attr);
|
|
if (err)
|
|
return err;
|
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len;
|
|
immutable->gid_tbl_len = attr.gid_tbl_len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str)
|
|
{
|
|
struct iwch_dev *iwch_dev = to_iwch_dev(ibdev);
|
|
struct ethtool_drvinfo info;
|
|
struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
|
|
|
|
pr_debug("%s dev 0x%p\n", __func__, iwch_dev);
|
|
lldev->ethtool_ops->get_drvinfo(lldev, &info);
|
|
snprintf(str, IB_FW_VERSION_NAME_MAX, "%s", info.fw_version);
|
|
}
|
|
|
|
static const struct ib_device_ops iwch_dev_ops = {
|
|
.owner = THIS_MODULE,
|
|
.driver_id = RDMA_DRIVER_CXGB3,
|
|
.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION,
|
|
.uverbs_no_driver_id_binding = 1,
|
|
|
|
.alloc_hw_stats = iwch_alloc_stats,
|
|
.alloc_mr = iwch_alloc_mr,
|
|
.alloc_mw = iwch_alloc_mw,
|
|
.alloc_pd = iwch_allocate_pd,
|
|
.alloc_ucontext = iwch_alloc_ucontext,
|
|
.create_cq = iwch_create_cq,
|
|
.create_qp = iwch_create_qp,
|
|
.dealloc_mw = iwch_dealloc_mw,
|
|
.dealloc_pd = iwch_deallocate_pd,
|
|
.dealloc_ucontext = iwch_dealloc_ucontext,
|
|
.dereg_mr = iwch_dereg_mr,
|
|
.destroy_cq = iwch_destroy_cq,
|
|
.destroy_qp = iwch_destroy_qp,
|
|
.get_dev_fw_str = get_dev_fw_ver_str,
|
|
.get_dma_mr = iwch_get_dma_mr,
|
|
.get_hw_stats = iwch_get_mib,
|
|
.get_port_immutable = iwch_port_immutable,
|
|
.iw_accept = iwch_accept_cr,
|
|
.iw_add_ref = iwch_qp_add_ref,
|
|
.iw_connect = iwch_connect,
|
|
.iw_create_listen = iwch_create_listen,
|
|
.iw_destroy_listen = iwch_destroy_listen,
|
|
.iw_get_qp = iwch_get_qp,
|
|
.iw_reject = iwch_reject_cr,
|
|
.iw_rem_ref = iwch_qp_rem_ref,
|
|
.map_mr_sg = iwch_map_mr_sg,
|
|
.mmap = iwch_mmap,
|
|
.modify_qp = iwch_ib_modify_qp,
|
|
.poll_cq = iwch_poll_cq,
|
|
.post_recv = iwch_post_receive,
|
|
.post_send = iwch_post_send,
|
|
.query_device = iwch_query_device,
|
|
.query_gid = iwch_query_gid,
|
|
.query_pkey = iwch_query_pkey,
|
|
.query_port = iwch_query_port,
|
|
.reg_user_mr = iwch_reg_user_mr,
|
|
.req_notify_cq = iwch_arm_cq,
|
|
INIT_RDMA_OBJ_SIZE(ib_pd, iwch_pd, ibpd),
|
|
INIT_RDMA_OBJ_SIZE(ib_cq, iwch_cq, ibcq),
|
|
INIT_RDMA_OBJ_SIZE(ib_ucontext, iwch_ucontext, ibucontext),
|
|
};
|
|
|
|
static int set_netdevs(struct ib_device *ib_dev, struct cxio_rdev *rdev)
|
|
{
|
|
int ret;
|
|
int i;
|
|
|
|
for (i = 0; i < rdev->port_info.nports; i++) {
|
|
ret = ib_device_set_netdev(ib_dev, rdev->port_info.lldevs[i],
|
|
i + 1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int iwch_register_device(struct iwch_dev *dev)
|
|
{
|
|
int err;
|
|
|
|
pr_debug("%s iwch_dev %p\n", __func__, dev);
|
|
memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
|
|
memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
|
|
dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
|
|
IB_DEVICE_MEM_WINDOW |
|
|
IB_DEVICE_MEM_MGT_EXTENSIONS;
|
|
|
|
/* cxgb3 supports STag 0. */
|
|
dev->ibdev.local_dma_lkey = 0;
|
|
|
|
dev->ibdev.uverbs_cmd_mask =
|
|
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
|
|
(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
|
|
(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
|
|
(1ull << IB_USER_VERBS_CMD_REG_MR) |
|
|
(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_POLL_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_POST_SEND) |
|
|
(1ull << IB_USER_VERBS_CMD_POST_RECV);
|
|
dev->ibdev.node_type = RDMA_NODE_RNIC;
|
|
BUILD_BUG_ON(sizeof(IWCH_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
|
|
memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
|
|
dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
|
|
dev->ibdev.num_comp_vectors = 1;
|
|
dev->ibdev.dev.parent = &dev->rdev.rnic_info.pdev->dev;
|
|
|
|
memcpy(dev->ibdev.iw_ifname, dev->rdev.t3cdev_p->lldev->name,
|
|
sizeof(dev->ibdev.iw_ifname));
|
|
|
|
rdma_set_device_sysfs_group(&dev->ibdev, &iwch_attr_group);
|
|
ib_set_device_ops(&dev->ibdev, &iwch_dev_ops);
|
|
err = set_netdevs(&dev->ibdev, &dev->rdev);
|
|
if (err)
|
|
return err;
|
|
|
|
return ib_register_device(&dev->ibdev, "cxgb3_%d");
|
|
}
|
|
|
|
void iwch_unregister_device(struct iwch_dev *dev)
|
|
{
|
|
pr_debug("%s iwch_dev %p\n", __func__, dev);
|
|
ib_unregister_device(&dev->ibdev);
|
|
return;
|
|
}
|