[openib-general] [PATCH 03/18] [RFC] Provider Registration and Methods
Steve Wise
swise at opengridcomputing.com
Mon Mar 6 10:04:50 PST 2006
ISSUES:
- we're exporting the mac address assigned to each netdev port as the
port gid. The IW CM/CMA uses this to find the openib device, given the
associated netdev mac address. Caitlin wanted this to be done by IP
address, not mac address.
--- old/src/linux-kernel/infiniband/hw/cxgb3/iwch_provider.c 1969-12-31 18:00:00.000000000 -0600
+++ new/src/linux-kernel/infiniband/hw/cxgb3/iwch_provider.c 2006-03-06 09:26:21.000000000 -0600
@@ -0,0 +1,1080 @@
+/*
+ * 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.
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/byteorder.h>
+
+#include <rdma/iw_cm.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_user_verbs.h>
+
+#include <cxio_hal.h>
+#include "iwch.h"
+#include "iwch_provider.h"
+#include "iwch_cm.h"
+#include "iwch_user.h"
+
+struct iwch_pd *vld_pdhl(struct iwch_dev *rhp, u64 pd_h)
+{
+ if (pd_h >= T3_MAX_NUM_PD)
+ return NULL;
+ return rhp->pdid2hlp[pd_h];
+}
+
+struct iwch_cq *vld_cqhl(struct iwch_dev *rhp, u64 cq_h)
+{
+ if (cq_h >= T3_MAX_NUM_CQ)
+ return NULL;
+ return rhp->cqid2hlp[cq_h];
+}
+
+struct iwch_qp *vld_qphl(struct iwch_dev *rhp, u64 qp_h)
+{
+ if (qp_h >= T3_MAX_NUM_QP)
+ return NULL;
+ return rhp->qpid2hlp[qp_h];
+}
+
+struct iwch_mr *vld_staghl(struct iwch_dev *rhp,
+ u64 mem_h)
+{
+ if (mem_h >= T3_MAX_NUM_STAG)
+ return NULL;
+ return rhp->stag2hlp[mem_h];
+}
+
+static int iwch_modify_port(struct ib_device *ibdev,
+ u8 port, int port_modify_mask,
+ struct ib_port_modify *props)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return -ENOSYS;
+}
+
+static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
+ struct ib_ah_attr *ah_attr)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return ERR_PTR(-ENOSYS);
+}
+
+static int iwch_ah_destroy(struct ib_ah *ah)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return -ENOSYS;
+}
+
+static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return -ENOSYS;
+}
+
+static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return -ENOSYS;
+}
+
+static int iwch_process_mad(struct ib_device *ibdev,
+ int mad_flags,
+ u8 port_num,
+ struct ib_wc *in_wc,
+ struct ib_grh *in_grh,
+ struct ib_mad *in_mad, struct ib_mad *out_mad)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return -ENOSYS;
+}
+
+static int iwch_dealloc_ucontext(struct ib_ucontext *context)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ kfree(to_iwch_ucontext(context));
+ return 0;
+}
+
+static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
+ struct ib_udata *udata)
+{
+ struct iwch_ucontext *context;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ context = kmalloc(sizeof(*context), GFP_KERNEL);
+ if (!context) {
+ return ERR_PTR(-ENOMEM);
+ }
+ return &context->ibucontext;
+}
+
+static int iwch_destroy_cq(struct ib_cq *ib_cq)
+{
+ struct iwch_cq *chp;
+
+ chp = to_iwch_cq(ib_cq);
+
+ spin_lock_irq(&chp->rhp->lock);
+ chp->rhp->cqid2hlp[chp->cqh] = NULL;
+ spin_unlock_irq(&chp->rhp->lock);
+
+ atomic_dec(&chp->refcnt);
+ wait_event(chp->wait, !atomic_read(&chp->refcnt));
+
+ cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
+ kfree(chp);
+ return 0;
+}
+
+static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries,
+ struct ib_ucontext *context,
+ struct ib_udata *udata)
+{
+ struct iwch_dev *rhp;
+ struct iwch_cq *chp;
+ struct iwch_create_cq_resp uresp;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ rhp = to_iwch_dev(ibdev);
+ if (!(chp = kzalloc(sizeof(*chp), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+
+ /*
+ * Attempt to make the CQ big enough to handle the T3
+ * additional CQE possibilities:
+ * TERMINATE,
+ * 2 CQES for each RDMA READ operation,
+ * incoming RDMA READ REQUEST FAILUREs
+ * We can make the CQ big enough to handle these for
+ * a single QP. But problems can arise if the CQ is shared...
+ */
+ entries = roundup_pow_of_two(entries +
+ 8 + /* max ORD */
+ 8 + /* max IRRQ */
+ 1 /* TERM */
+ );
+ chp->cq.size_log2 = long_log2(entries);
+
+ if (cxio_create_cq(&rhp->rdev, &chp->cq)) {
+ kfree(chp);
+ return ERR_PTR(-ENOMEM);
+ }
+ chp->rhp = rhp;
+ chp->ibcq.cqe = (1 << chp->cq.size_log2) - 1;
+ spin_lock_init(&chp->lock);
+ atomic_set(&chp->refcnt, 1);
+ init_waitqueue_head(&chp->wait);
+ chp->cqh = chp->cq.cqid;
+
+ spin_lock_irq(&rhp->lock);
+ rhp->cqid2hlp[chp->cq.cqid] = chp;
+ spin_unlock_irq(&rhp->lock);
+
+ if (context) {
+ uresp.cqid = chp->cq.cqid;
+ uresp.entries = chp->ibcq.cqe;
+ uresp.physaddr = chp->cq.dma_addr;
+ if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
+ iwch_destroy_cq(&chp->ibcq);
+ return ERR_PTR(-EFAULT);
+ }
+ }
+ PDBG("created cq_hdl(%0x) chp=%p size=0x%0x, dma_addr=0x%0x\n",
+ chp->cq.cqid, chp, (1 << chp->cq.size_log2), chp->cq.dma_addr);
+ return &chp->ibcq;
+}
+
+static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
+{
+ struct iwch_cq *chp = to_iwch_cq(cq);
+ struct t3_cq oldcq, newcq;
+ int ret;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+
+ /* We don't downsize... */
+ if (cqe <= cq->cqe)
+ return 0;
+
+ /* create new t3_cq with new size */
+ cqe = roundup_pow_of_two(cqe+1);
+ newcq.size_log2 = long_log2(cqe);
+
+ /* Dont allow resize to less than the current wce count */
+ if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) {
+ return -ENOMEM;
+ }
+
+ /* Quiesce all QPs using this CQ */
+ if ((ret = iwch_quiesce_qps(chp))) {
+ return ret;
+ }
+
+ /* XXX limit max based on rdev */
+ if ((ret = cxio_create_cq(&chp->rhp->rdev, &newcq))) {
+ kfree(chp);
+ return ret;
+ }
+
+ /* copy CQEs */
+ memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) *
+ sizeof(struct t3_cqe));
+
+ /* old iwch_qp gets new t3_cq but keeps old cqid */
+ oldcq = chp->cq;
+ chp->cq = newcq;
+ chp->cq.cqid = oldcq.cqid;
+
+ /* resize new t3_cq to update the HW context */
+ if ((ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq))) {
+ chp->cq = oldcq;
+ return ret;
+ }
+ chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1;
+
+ /* destroy old t3_cq */
+ oldcq.cqid = newcq.cqid;
+ if ((ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq))) {
+ printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
+ __FUNCTION__, ret);
+ }
+
+ /* add user hooks here */
+
+ /* resume qps */
+ ret = iwch_resume_qps(chp);
+ return ret;
+}
+
+static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
+{
+ struct iwch_dev *rhp;
+ struct iwch_cq *chp;
+ enum t3_cq_opcode cq_op;
+ int err;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ chp = to_iwch_cq(ibcq);
+ rhp = chp->rhp;
+
+ if (notify == IB_CQ_SOLICITED)
+ cq_op = CQ_ARM_SE;
+ else
+ cq_op = CQ_ARM_AN;
+ err = cxio_hal_cq_op(&rhp->rdev, chp->cqh, cq_op, 0);
+ if (err)
+ printk(KERN_ERR "iw_ch: error rearming CQ %llu\n", chp->cqh);
+ return err;
+}
+
+static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
+{
+ int len = vma->vm_end - vma->vm_start;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ vma->vm_flags |= VM_RESERVED;
+ if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+ len, vma->vm_page_prot))
+ return -EAGAIN;
+ return 0;
+}
+
+static int iwch_deallocate_pd(struct ib_pd *pd)
+{
+ struct iwch_dev *rhp;
+ struct iwch_pd *php;
+ u64 pd_h;
+
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+ pd_h = (u64) php->pdid;
+ PDBG("iwch_deallocate_pd entry: hdl(%0llx)\n", pd_h);
+ rhp->pdid2hlp[pd_h] = NULL;
+ cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
+ kfree(php);
+ return 0;
+}
+
+static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
+ struct ib_ucontext *context,
+ struct ib_udata *udata)
+{
+ struct iwch_pd *php;
+ u32 pdid;
+ struct iwch_dev *rhp;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ rhp = (struct iwch_dev *) ibdev;
+ if (!(pdid = cxio_hal_get_pdid(rhp->rdev.rscp)))
+ return ERR_PTR(-EINVAL);
+ if (!(php = kzalloc(sizeof(*php), GFP_KERNEL))) {
+ cxio_hal_put_pdid(rhp->rdev.rscp, pdid);
+ return ERR_PTR(-ENOMEM);
+ }
+ php->pdid = pdid;
+ php->rhp = rhp;
+ rhp->pdid2hlp[pdid] = php;
+ if (context) {
+ if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
+ iwch_deallocate_pd(&php->ibpd);
+ return ERR_PTR(-EFAULT);
+ }
+ }
+ PDBG("iwch_allocate_pd: pdid(0x%0x) hlp(0x%p)\n", pdid, php);
+ return &php->ibpd;
+}
+
+static int iwch_dereg_mr(struct ib_mr *ib_mr)
+{
+ struct iwch_dev *rhp;
+ struct iwch_mr *mhp;
+ struct iwch_pd *php;
+ u64 mem_h;
+
+ /* There can be no memory windows */
+ if (atomic_read(&ib_mr->usecnt))
+ return -EINVAL;
+
+ mhp = to_iwch_mr(ib_mr);
+ rhp = mhp->rhp;
+ mem_h = mhp->attr.stag >> 8;
+ /* TBD: check dereg_mem return status: regreg mem with mw bound to it */
+ cxio_dereg_mem(&rhp->rdev, mhp->attr.stag);
+ rhp->stag2hlp[mem_h] = NULL;
+ php = vld_pdhl(rhp, mhp->attr.pdid);
+ if (mhp->kva)
+ kfree((void *) (unsigned long) mhp->kva);
+ kfree(mhp);
+ PDBG("iwch_dereg_mem: mem_h(0x%0llx) hlp(%p)\n", mem_h, mhp);
+ return 0;
+}
+
+static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
+ struct ib_phys_buf *buffer_list,
+ int num_phys_buf,
+ int acc,
+ u64 *iova_start)
+{
+ u64 *page_list;
+ int shift;
+ u64 total_size;
+ int npages;
+ struct iwch_dev *rhp;
+ struct iwch_pd *php;
+ struct iwch_mr *mhp;
+ int ret;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+
+ acc = iwch_convert_access(acc);
+
+
+ if (!(mhp = kzalloc(sizeof(*mhp), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+
+ /* First check that we have enough alignment */
+ if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK))
+ return ERR_PTR(-EINVAL);
+
+ if (num_phys_buf > 1 &&
+ ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK))
+ return ERR_PTR(-EINVAL);
+
+ ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start,
+ &total_size, &npages, &shift, &page_list);
+ if (ret) {
+ kfree(mhp);
+ return ERR_PTR(ret);
+ }
+
+
+ mhp->rhp = rhp;
+ mhp->attr.pdid = php->pdid;
+ mhp->attr.zbva = 0;
+
+ /* XXX TPT perms are backwards from BIND WR perms! */
+ mhp->attr.perms = (acc & 0x1) << 3;
+ mhp->attr.perms |= (acc & 0x2) << 1;
+ mhp->attr.perms |= (acc & 0x4) >> 1;
+ mhp->attr.perms |= (acc & 0x8) >> 3;
+
+ mhp->attr.va_fbo = *iova_start;
+ mhp->attr.page_size = shift - 12;
+
+ mhp->attr.len = (u32) total_size;
+ mhp->attr.pbl_size = npages;
+ ret = iwch_register_mem(rhp, php, mhp, shift, page_list);
+ if (ret) {
+ kfree(mhp);
+ return ERR_PTR(ret);
+ }
+
+ return &mhp->ibmr;
+}
+
+static int iwch_reregister_phys_mem(struct ib_mr *mr,
+ int mr_rereg_mask,
+ struct ib_pd *pd,
+ struct ib_phys_buf *buffer_list,
+ int num_phys_buf,
+ int acc, u64 * iova_start)
+{
+
+ struct iwch_mr mh, *mhp;
+ struct iwch_pd *php;
+ struct iwch_dev *rhp;
+ int new_acc;
+ u64 *page_list = 0;
+ int shift = 0;
+ u64 total_size;
+ int npages;
+ int ret;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ /* There can be no memory windows */
+ if (atomic_read(&mr->usecnt))
+ return -EINVAL;
+
+ mhp = to_iwch_mr(mr);
+ rhp = mhp->rhp;
+ php = to_iwch_pd(mr->pd);
+
+ /* make sure we are on the same adapter */
+ if (rhp != php->rhp)
+ return -EINVAL;
+
+ new_acc = mhp->attr.perms;
+
+ memcpy(&mh, mhp, sizeof *mhp);
+
+ printk("%s: %d stag = 0x%x\n",__FUNCTION__, __LINE__,mh.attr.stag);
+ if (mr_rereg_mask & IB_MR_REREG_PD)
+ php = to_iwch_pd(pd);
+ if (mr_rereg_mask & IB_MR_REREG_ACCESS)
+ mh.attr.perms = iwch_convert_access(acc);
+ if (mr_rereg_mask & IB_MR_REREG_TRANS)
+ ret = build_phys_page_list(buffer_list, num_phys_buf,
+ iova_start,
+ &total_size, &npages,
+ &shift, &page_list);
+
+ ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list);
+ if (ret) {
+ return ret;
+ }
+ if (mr_rereg_mask & IB_MR_REREG_PD)
+ mhp->attr.pdid = php->pdid;
+ if (mr_rereg_mask & IB_MR_REREG_ACCESS)
+ mhp->attr.perms = acc;
+ if (mr_rereg_mask & IB_MR_REREG_TRANS) {
+ mhp->attr.zbva = 0;
+ mhp->attr.va_fbo = *iova_start;
+ mhp->attr.page_size = shift - 12;
+ mhp->attr.len = (u32) total_size;
+ mhp->attr.pbl_size = npages;
+ }
+
+ return 0;
+}
+
+
+struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
+ int acc, struct ib_udata *udata)
+{
+ u64 *pages;
+ int shift, n, len;
+ int i, j, k;
+ int err = 0;
+ struct ib_umem_chunk *chunk;
+ struct iwch_dev *rhp;
+ struct iwch_pd *php;
+ struct iwch_mr *mhp;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ shift = ffs(region->page_size) - 1;
+
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+ if (!(mhp = kzalloc(sizeof(*mhp), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+
+ n = 0;
+ list_for_each_entry(chunk, ®ion->chunk_list, list)
+ n += chunk->nents;
+
+ pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
+ if (IS_ERR(pages)) {
+ err = PTR_ERR(pages);
+ goto err;
+ }
+
+ acc = iwch_convert_access(acc);
+
+ i = n = 0;
+
+ list_for_each_entry(chunk, ®ion->chunk_list, list)
+ for (j = 0; j < chunk->nmap; ++j) {
+ len = sg_dma_len(&chunk->page_list[j]) >> shift;
+ for (k = 0; k < len; ++k) {
+ pages[i++] = cpu_to_be64(sg_dma_address(
+ &chunk->page_list[j]) +
+ region->page_size * k);
+ }
+ }
+
+ mhp->rhp = rhp;
+ mhp->attr.pdid = php->pdid;
+ mhp->attr.zbva = 0;
+ mhp->attr.perms = (acc & 0x1) << 3;
+ mhp->attr.perms |= (acc & 0x2) << 1;
+ mhp->attr.perms |= (acc & 0x4) >> 1;
+ mhp->attr.perms |= (acc & 0x8) >> 3;
+ mhp->attr.va_fbo = region->virt_base;
+ mhp->attr.page_size = shift - 12;
+ mhp->attr.len = (u32) region->length;
+ mhp->attr.pbl_size = i;
+ err = iwch_register_mem(rhp, php, mhp, shift, pages);
+
+ kfree(pages);
+
+ return &mhp->ibmr;
+
+err:
+ kfree(mhp);
+ return ERR_PTR(err);
+
+}
+
+struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
+{
+ struct ib_phys_buf bl;
+ u64 kva;
+ struct ib_mr *ibmr;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+
+ /*
+ * T3 only supports 32 bits of size.
+ */
+ bl.size = 0xffffffff;
+ bl.addr = 0;
+ kva = 0;
+ ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva);
+ return ibmr;
+}
+
+
+struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
+{
+ struct iwch_dev *rhp;
+ struct iwch_pd *php;
+ struct iwch_mw *mhp;
+ u64 win_h;
+ u32 stag = 0;
+
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+ if (!(mhp = kmalloc(sizeof(*mhp), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+ memset(mhp, 0, sizeof(struct iwch_mw));
+ if (cxio_allocate_window(&rhp->rdev, &stag, php->pdid)) {
+ kfree(mhp);
+ return ERR_PTR(-EFAULT);
+ }
+ mhp->rhp = rhp;
+ mhp->attr.pdid = php->pdid;
+ mhp->attr.type = TPT_MW;
+ mhp->attr.stag = stag;
+ win_h = (stag) >> 8;
+ rhp->stag2hlp[win_h] = (struct iwch_mr *) mhp;
+ PDBG("iwch_allocate_window: win_h(0x%0llx) mhp(%p) stag(0x%x)\n",
+ win_h, mhp, stag);
+ return &(mhp->ibmw);
+}
+
+int iwch_dealloc_mw(struct ib_mw *mw)
+{
+ struct iwch_dev *rhp;
+ struct iwch_mw *mhp;
+ struct iwch_pd *php;
+ u64 win_h;
+
+ mhp = to_iwch_mw(mw);
+ rhp = mhp->rhp;
+ win_h = (mw->rkey) >> 8;
+ php = vld_pdhl(rhp, mhp->attr.pdid);
+ cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
+ rhp->stag2hlp[win_h] = NULL;
+ kfree(mhp);
+ PDBG("iwch_deallocate_window: win_h(0x%0llx) hlp(%p)\n", win_h, mhp);
+ return 0;
+}
+
+static int iwch_destroy_qp(struct ib_qp *ib_qp)
+{
+ struct iwch_dev *rhp;
+ struct iwch_qp *qhp;
+ struct iwch_pd *php;
+ struct iwch_cq *schp;
+ struct iwch_cq *rchp;
+
+ qhp = to_iwch_qp(ib_qp);
+ rhp = qhp->rhp;
+ php = vld_pdhl(rhp, qhp->attr.pd);
+ schp = vld_cqhl(rhp, qhp->attr.scq);
+ rchp = vld_cqhl(rhp, qhp->attr.rcq);
+
+ if (qhp->ep) {
+ iwch_disconnect(qhp->ep->com.cm_id, 1);
+ }
+
+ spin_lock_irq(&rhp->lock);
+ rhp->qpid2hlp[qhp->wq.qpid] = NULL;
+ spin_unlock_irq(&rhp->lock);
+
+ atomic_dec(&qhp->refcnt);
+ wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
+
+ cxio_destroy_qp(&rhp->rdev, &qhp->wq);
+
+ PDBG("iwch_destroy_qp: qp_h(0x%0x) qhp(%p)\n", 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;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ if (attrs->qp_type != IB_QPT_RC)
+ return ERR_PTR(-EINVAL);
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+ if (!(schp = vld_cqhl(rhp, ((struct iwch_cq *) attrs->send_cq)->cqh)) ||
+ !(rchp = vld_cqhl(rhp, ((struct iwch_cq *) attrs->recv_cq)->cqh)))
+ 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);
+
+ wqsize = roundup_pow_of_two(rqsize + attrs->cap.max_send_wr);
+ sqsize = wqsize - rqsize;
+ PDBG("%s wqsize %d sqsize %d rqsize %d\n", __FUNCTION__,
+ wqsize, sqsize, rqsize);
+ if (!(qhp = kzalloc(sizeof(*qhp), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+ qhp->wq.size_log2 = long_log2(wqsize);
+ qhp->wq.rq_size_log2 = long_log2(rqsize);
+ qhp->wq.sq_size_log2 = long_log2(sqsize);
+ if (cxio_create_qp(&rhp->rdev, 1, &qhp->wq)) {
+ kfree(qhp);
+ return ERR_PTR(-ENOMEM);
+ }
+ attrs->cap.max_recv_wr = rqsize - 1;
+ attrs->cap.max_send_wr = sqsize;
+ qhp->rhp = rhp;
+ qhp->attr.pd = php->pdid;
+ qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cqh;
+ qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cqh;
+ qhp->attr.sqNumEntries = attrs->cap.max_send_wr;
+ qhp->attr.rqNumEntries = attrs->cap.max_recv_wr;
+ qhp->attr.sqMaxSGEs = attrs->cap.max_send_sge;
+ qhp->attr.sqMaxSGEs_rdma_write = attrs->cap.max_send_sge;
+ qhp->attr.rqMaxSGEs = 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.enableRdmaRead = 1;
+ qhp->attr.enableRdmaWrite = 1;
+ qhp->attr.enableBind = 1;
+ qhp->attr.maxORD = 1;
+ qhp->attr.maxIRD = 1;
+ spin_lock_init(&qhp->lock);
+ init_waitqueue_head(&qhp->wait);
+ atomic_set(&qhp->refcnt, 1);
+
+ spin_lock_irq(&rhp->lock);
+ rhp->qpid2hlp[qhp->wq.qpid] = qhp;
+ spin_unlock_irq(&rhp->lock);
+
+ PDBG("iwch_create_qp: udata = 0x%p failed\n", udata);
+ if (udata) {
+ uresp.qpid = qhp->wq.qpid;
+ uresp.entries = qhp->attr.sqNumEntries + qhp->attr.rqNumEntries;
+ uresp.physaddr = qhp->wq.dma_addr;
+ uresp.physsize = (u64) uresp.entries * sizeof(union t3_wr);
+ if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
+ PDBG("iwch_create_qp: ib_copy_to_udata failed\n");
+ iwch_destroy_qp(&qhp->ibqp);
+ return ERR_PTR(-EFAULT);
+ }
+ }
+ qhp->ibqp.qp_num = qhp->wq.qpid;
+ PDBG("iwch_create_qp: sqNumEntries = %d, rqNumEntries = %d\n",
+ qhp->attr.sqNumEntries, qhp->attr.rqNumEntries);
+ PDBG("iwch_create_qp: qh_h(0x%0x) qhp=%p dma_addr=0x%0x size=%d\n",
+ (qhp->wq.qpid), qhp, qhp->wq.dma_addr, (1 << qhp->wq.size_log2));
+ return (&qhp->ibqp);
+}
+
+static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask)
+{
+ struct iwch_dev *rhp;
+ struct iwch_qp *qhp;
+ enum iwch_qp_attr_mask mask = 0;
+ struct iwch_qp_attributes attrs;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+
+ /* 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;
+
+ memset(&attrs, 0, sizeof attrs);
+ qhp = to_iwch_qp(ibqp);
+ rhp = qhp->rhp;
+
+ attrs.next_state = iwch_convert_state(attr->qp_state);
+ attrs.enableRdmaRead = (attr->qp_access_flags &
+ IB_ACCESS_REMOTE_READ) ? 1 : 0;
+ attrs.enableRdmaWrite = (attr->qp_access_flags &
+ IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
+ attrs.enableBind = (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);
+}
+
+static int iwch_query_pkey(struct ib_device *ibdev,
+ u8 port, u16 index, u16 * pkey)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ *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;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ PDBG("ibdev %p, port %d, index %d, gid %p\n",
+ ibdev, port, index, gid);
+ dev = to_iwch_dev(ibdev);
+ BUG_ON(port == 0 || port > 2);
+ PDBG("dev %p port %d netdev %p\n", dev, port,
+ dev->rdev.rnic_info.lldevs[port-1]);
+ memset(&(gid->raw[0]), 0, sizeof(gid->raw));
+ memcpy(&(gid->raw[0]), dev->rdev.rnic_info.lldevs[port-1]->dev_addr, 6);
+ return 0;
+}
+
+static int iwch_query_device(struct ib_device *ibdev,
+ struct ib_device_attr *props)
+{
+
+ struct iwch_dev *dev;
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+
+ dev = to_iwch_dev(ibdev);
+ memset(props, 0, sizeof *props);
+ memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
+ props->device_cap_flags = dev->device_cap_flags;
+#if 0
+ props->fw_ver = cht3dev->fw_ver;
+ props->hw_ver = dev->adapter->params->chip_version;
+#endif
+ 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 = ~0ull;
+ props->max_qp = dev->attr.maxQPs;
+ props->max_qp_wr = dev->attr.maxSGEperWR;
+ props->max_sge = dev->attr.maxSGEperWR;
+ props->max_cq = dev->attr.maxCQs;
+ props->max_cqe = dev->attr.maxSGEperWR;
+ props->max_mr = dev->attr.maxMemRegs;
+ props->max_pd = dev->attr.maxPDs;
+ props->max_qp_rd_atom = 0;
+ props->max_qp_init_rd_atom = 0;
+ props->local_ca_ack_delay = 0;
+
+ return 0;
+}
+
+static int iwch_query_port(struct ib_device *ibdev,
+ u8 port, struct ib_port_attr *props)
+{
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ props->max_mtu = IB_MTU_4096;
+ props->lid = 0;
+ props->lmc = 0;
+ props->sm_lid = 0;
+ props->sm_sl = 0;
+ props->state = IB_PORT_ACTIVE;
+ props->phys_state = 0;
+ 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->qkey_viol_cntr = 0;
+ props->active_width = 2;
+ props->active_speed = 2;
+
+ return 0;
+}
+
+static ssize_t show_rev(struct class_device *cdev, char *buf)
+{
+ struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
+ ibdev.class_dev);
+ struct ethtool_drvinfo info;
+ struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ lldev->ethtool_ops->get_drvinfo(lldev, &info);
+ return sprintf(buf, "%s\n", info.version);
+}
+
+static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
+{
+ struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
+ ibdev.class_dev);
+ struct ethtool_drvinfo info;
+ struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ lldev->ethtool_ops->get_drvinfo(lldev, &info);
+ return sprintf(buf, "%s\n", info.fw_version);
+}
+
+static ssize_t show_hca(struct class_device *cdev, char *buf)
+{
+ struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
+ ibdev.class_dev);
+ struct ethtool_drvinfo info;
+ struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ lldev->ethtool_ops->get_drvinfo(lldev, &info);
+ return sprintf(buf, "%s\n", info.driver);
+}
+
+static ssize_t show_board(struct class_device *cdev, char *buf)
+{
+ struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
+ ibdev.class_dev);
+ PDBG("%s:%s:%u dev = 0x%p\n", __FILE__, __FUNCTION__, __LINE__, dev);
+ return sprintf(buf, "%x.%x\n", dev->rdev.rnic_info.pdev->vendor,
+ dev->rdev.rnic_info.pdev->device);
+}
+
+static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
+static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
+static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
+static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
+
+static struct class_device_attribute *iwch_class_attributes[] = {
+ &class_device_attr_hw_rev,
+ &class_device_attr_fw_ver,
+ &class_device_attr_hca_type,
+ &class_device_attr_board_id
+};
+
+int iwch_register_device(struct iwch_dev *dev)
+{
+ int ret;
+ int i;
+
+ PDBG("%s line %d\n", __FUNCTION__, __LINE__);
+ strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
+ PDBG(" dev name = %s\n", dev->ibdev.name);
+ 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->ibdev.owner = THIS_MODULE;
+ dev->device_cap_flags =
+ (IB_DEVICE_ZERO_STAG |
+ IB_DEVICE_SEND_W_INV | IB_DEVICE_MEM_WINDOW);
+
+ 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;
+ dev->ibdev.phys_port_cnt = dev->rdev.rnic_info.nports;
+ dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
+ dev->ibdev.class_dev.dev = &(dev->rdev.rnic_info.pdev->dev);
+ dev->ibdev.query_device = iwch_query_device;
+ dev->ibdev.query_port = iwch_query_port;
+ dev->ibdev.modify_port = iwch_modify_port;
+ dev->ibdev.query_pkey = iwch_query_pkey;
+ dev->ibdev.query_gid = iwch_query_gid;
+ dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
+ dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
+ dev->ibdev.mmap = iwch_mmap;
+ dev->ibdev.alloc_pd = iwch_allocate_pd;
+ dev->ibdev.dealloc_pd = iwch_deallocate_pd;
+ dev->ibdev.create_ah = iwch_ah_create;
+ dev->ibdev.destroy_ah = iwch_ah_destroy;
+ dev->ibdev.create_qp = iwch_create_qp;
+ dev->ibdev.modify_qp = iwch_ib_modify_qp;
+ dev->ibdev.destroy_qp = iwch_destroy_qp;
+ dev->ibdev.create_cq = iwch_create_cq;
+ dev->ibdev.destroy_cq = iwch_destroy_cq;
+ dev->ibdev.resize_cq = iwch_resize_cq;
+ dev->ibdev.poll_cq = iwch_poll_cq;
+ dev->ibdev.get_dma_mr = iwch_get_dma_mr;
+ dev->ibdev.reg_phys_mr = iwch_register_phys_mem;
+ dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem;
+ dev->ibdev.reg_user_mr = iwch_reg_user_mr;
+ dev->ibdev.dereg_mr = iwch_dereg_mr;
+ dev->ibdev.alloc_mw = iwch_alloc_mw;
+ dev->ibdev.bind_mw = iwch_bind_mw;
+ dev->ibdev.dealloc_mw = iwch_dealloc_mw;
+
+ dev->ibdev.attach_mcast = iwch_multicast_attach;
+ dev->ibdev.detach_mcast = iwch_multicast_detach;
+ dev->ibdev.process_mad = iwch_process_mad;
+
+ dev->ibdev.req_notify_cq = iwch_arm_cq;
+ dev->ibdev.post_send = iwch_post_send;
+ dev->ibdev.post_recv = iwch_post_receive;
+
+
+ dev->ibdev.iwcm =
+ (struct iw_cm_verbs *) kmalloc(sizeof(struct iw_cm_verbs),
+ GFP_KERNEL);
+ dev->ibdev.iwcm->connect = iwch_connect;
+ dev->ibdev.iwcm->disconnect = iwch_disconnect;
+ dev->ibdev.iwcm->accept = iwch_accept_cr;
+ dev->ibdev.iwcm->reject = iwch_reject_cr;
+ dev->ibdev.iwcm->create_listen = iwch_create_listen;
+ dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
+
+ ret = ib_register_device(&dev->ibdev);
+ if (ret)
+ goto bail1;
+
+ PDBG("%s line %d\n", __FUNCTION__, __LINE__);
+ for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
+ ret = class_device_create_file(&dev->ibdev.class_dev,
+ iwch_class_attributes[i]);
+ if (ret) {
+ goto bail2;
+ }
+ }
+ PDBG("%s line %d\n", __FUNCTION__, __LINE__);
+ return 0;
+bail2:
+ PDBG("%s line %d\n", __FUNCTION__, __LINE__);
+ ib_unregister_device(&dev->ibdev);
+bail1:
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ return ret;
+}
+
+void iwch_unregister_device(struct iwch_dev *dev)
+{
+ int i;
+
+ PDBG("%s:%s:%u\n", __FILE__, __FUNCTION__, __LINE__);
+ for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
+ class_device_remove_file(&dev->ibdev.class_dev,
+ iwch_class_attributes[i]);
+ ib_unregister_device(&dev->ibdev);
+ return;
+}
--- old/src/linux-kernel/infiniband/hw/cxgb3/iwch_provider.h 1969-12-31 18:00:00.000000000 -0600
+++ new/src/linux-kernel/infiniband/hw/cxgb3/iwch_provider.h 2006-03-06 09:26:21.000000000 -0600
@@ -0,0 +1,383 @@
+/*
+ * 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.
+ */
+#ifndef __IWCH_PROVIDER_H__
+#define __IWCH_PROVIDER_H__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <rdma/ib_verbs.h>
+#include <asm/types.h>
+#include "t3cdev.h"
+#include "cxio_wr.h"
+#include "cxio_hal.h"
+
+
+struct iwch_pd {
+ struct ib_pd ibpd;
+ u32 pdid;
+ struct iwch_dev *rhp;
+};
+
+static inline struct iwch_pd *to_iwch_pd(struct ib_pd *ibpd)
+{
+ return container_of(ibpd, struct iwch_pd, ibpd);
+}
+
+struct tpt_attributes {
+ u32 stag;
+ u32 state:1;
+ u32 type:2;
+ u32 rsvd:1;
+ enum tpt_mem_perm perms;
+ u32 remote_invaliate_disable:1;
+ u32 zbva:1;
+ u32 mw_bind_enable:1;
+ u32 page_size:5;
+
+ u32 pdid;
+ u32 qpid;
+ u32 pbl_addr;
+ u32 len;
+ u64 va_fbo;
+ u32 pbl_size;
+};
+
+struct iwch_mr {
+ struct ib_mr ibmr;
+ struct iwch_dev *rhp;
+ u64 kva;
+ struct tpt_attributes attr;
+};
+
+typedef struct iwch_mw iwch_mw_handle;
+
+static inline struct iwch_mr *to_iwch_mr(struct ib_mr *ibmr)
+{
+ return container_of(ibmr, struct iwch_mr, ibmr);
+}
+
+struct iwch_mw {
+ struct ib_mw ibmw;
+ struct iwch_dev *rhp;
+ u64 kva;
+ struct tpt_attributes attr;
+};
+
+static inline struct iwch_mw *to_iwch_mw(struct ib_mw *ibmw)
+{
+ return container_of(ibmw, struct iwch_mw, ibmw);
+}
+
+struct iwch_cq {
+ struct ib_cq ibcq;
+ struct iwch_dev *rhp;
+ u64 cqh;
+ struct t3_cq cq;
+ spinlock_t lock;
+ atomic_t refcnt;
+ wait_queue_head_t wait;
+};
+
+static inline struct iwch_cq *to_iwch_cq(struct ib_cq *ibcq)
+{
+ return container_of(ibcq, struct iwch_cq, ibcq);
+}
+
+enum IWCH_QP_FLAGS {
+ QP_QUIESCED = 0x01
+};
+
+struct iwch_mpa_attributes {
+ __u8 recv_marker_enabled;
+ __u8 xmit_marker_enabled; /* iWARP: enable inbound Read Resp. */
+ __u8 crc_enabled;
+ __u8 version; /* 0 or 1 */
+};
+
+struct iwch_qp_attributes {
+ __u64 scq;
+ __u64 rcq;
+ __u32 sqNumEntries;
+ __u32 rqNumEntries;
+ __u32 sqMaxSGEs;
+ __u32 sqMaxSGEs_rdma_write;
+ __u32 rqMaxSGEs;
+ __u32 state;
+ __u8 enableRdmaRead;
+ __u8 enableRdmaWrite; /* enable inbound Read Resp. */
+ __u8 enableBind;
+ /*
+ * Next QP state. If specify the current state, only the
+ * QP attributes will be modified.
+ */
+ __u32 maxORD;
+ __u32 maxIRD;
+ __u64 pd; /* IN */
+ __u32 next_state;
+ __u8 enable_stag0_fastreg; /* Enable STAG0 + Fast-register */
+ char terminate_buffer[52];
+ __u32 terminate_msg_len;
+ __u8 is_terminate_local;
+ struct iwch_mpa_attributes mpa_attr; /* IN-OUT */
+ struct iwch_ep *llp_stream_handle;
+ __u64 reserved;
+ char *stream_msg_buf; /* Last stream msg. before Idle -> RTS */
+ __u32 stream_msg_buf_len; /* Only on Idle -> RTS */
+};
+
+struct iwch_qp {
+ struct ib_qp ibqp;
+ struct iwch_dev *rhp;
+ struct iwch_ep *ep;
+ struct iwch_qp_attributes attr;
+ struct t3_wq wq;
+ spinlock_t lock;
+ atomic_t refcnt;
+ wait_queue_head_t wait;
+ enum IWCH_QP_FLAGS flags;
+};
+
+static inline int qp_quiesced(struct iwch_qp *qhp)
+{
+ return (qhp->flags & QP_QUIESCED);
+}
+
+static inline struct iwch_qp *to_iwch_qp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct iwch_qp, ibqp);
+}
+
+/*
+ * I'm anticipating we'll need something per user...
+ */
+struct iwch_ucontext {
+ struct ib_ucontext ibucontext;
+};
+
+static inline struct iwch_ucontext *to_iwch_ucontext(struct ib_ucontext *c)
+{
+ return container_of(c, struct iwch_ucontext, ibucontext);
+}
+
+enum iwch_qp_attr_mask {
+ IWCH_QP_ATTR_NEXT_STATE = 1 << 0,
+ IWCH_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
+ IWCH_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
+ IWCH_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
+ IWCH_QP_ATTR_MAX_ORD = 1 << 11,
+ IWCH_QP_ATTR_MAX_IRD = 1 << 12,
+ IWCH_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
+ IWCH_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
+ IWCH_QP_ATTR_MPA_ATTR = 1 << 24,
+ IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
+ IWCH_QP_ATTR_VALID_MODIFY = (IWCH_QP_ATTR_ENABLE_RDMA_READ |
+ IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
+ IWCH_QP_ATTR_MAX_ORD |
+ IWCH_QP_ATTR_MAX_IRD |
+ IWCH_QP_ATTR_LLP_STREAM_HANDLE |
+ IWCH_QP_ATTR_STREAM_MSG_BUFFER |
+ IWCH_QP_ATTR_MPA_ATTR |
+ IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE)
+};
+
+int iwch_modify_qp(struct iwch_dev *rhp,
+ struct iwch_qp *qhp,
+ enum iwch_qp_attr_mask mask,
+ struct iwch_qp_attributes *attrs,
+ int internal);
+
+enum iwch_qp_state {
+ IWCH_QP_STATE_IDLE,
+ IWCH_QP_STATE_RTS,
+ IWCH_QP_STATE_ERROR,
+ IWCH_QP_STATE_TERMINATE,
+ IWCH_QP_STATE_CLOSING,
+ IWCH_QP_STATE_TOT
+};
+
+static inline int iwch_convert_state(enum ib_qp_state ib_state)
+{
+ switch (ib_state) {
+ case IB_QPS_RESET:
+ case IB_QPS_INIT:
+ return IWCH_QP_STATE_IDLE;
+ case IB_QPS_RTS:
+ return IWCH_QP_STATE_RTS;
+ case IB_QPS_SQD:
+ return IWCH_QP_STATE_CLOSING;
+ case IB_QPS_SQE:
+ return IWCH_QP_STATE_CLOSING;
+ case IB_QPS_ERR:
+ return IWCH_QP_STATE_ERROR;
+ default:
+ return -1;
+ }
+}
+
+enum iwch_mem_perms {
+ IWCH_MEM_ACCESS_LOCAL_READ = 1 << 0,
+ IWCH_MEM_ACCESS_LOCAL_WRITE = 1 << 1,
+ IWCH_MEM_ACCESS_REMOTE_READ = 1 << 2,
+ IWCH_MEM_ACCESS_REMOTE_WRITE = 1 << 3,
+ IWCH_MEM_ACCESS_ATOMICS = 1 << 4,
+ IWCH_MEM_ACCESS_BINDING = 1 << 5,
+ IWCH_MEM_ACCESS_LOCAL =
+ (IWCH_MEM_ACCESS_LOCAL_READ | IWCH_MEM_ACCESS_LOCAL_WRITE),
+ IWCH_MEM_ACCESS_REMOTE =
+ (IWCH_MEM_ACCESS_REMOTE_WRITE | IWCH_MEM_ACCESS_REMOTE_READ)
+ /* cannot go beyond 1 << 31 */
+} __attribute__ ((packed));
+
+static inline u32 iwch_convert_access(int acc)
+{
+ return (acc & IB_ACCESS_REMOTE_WRITE ? IWCH_MEM_ACCESS_REMOTE_WRITE : 0)
+ | (acc & IB_ACCESS_REMOTE_READ ? IWCH_MEM_ACCESS_REMOTE_READ : 0) |
+ (acc & IB_ACCESS_LOCAL_WRITE ? IWCH_MEM_ACCESS_LOCAL_WRITE : 0) |
+ (acc & IB_ACCESS_MW_BIND ? IWCH_MEM_ACCESS_BINDING : 0) |
+ IWCH_MEM_ACCESS_LOCAL_READ;
+}
+
+enum iwch_stag_state {
+ IWCH_STAG_STATE_VALID,
+ IWCH_STAG_STATE_INVALID
+};
+
+struct iwch_rnic_attributes {
+ __u32 vendorID;
+ __u32 vendorPartID;
+ __u32 hwVersion;
+ char *addl_vendor_info;
+ __u32 addl_vendor_info_length;
+ __u32 maxQPs;
+ __u32 maxWRs; /* Max for any SQ/RQ */
+ __u32 maxSGEperWR;
+ __u32 maxSGEperRDMAWWR; /* for RDMA Write WR */
+ __u32 maxCQs;
+ __u32 maxCQEsPerCQ;
+ __u32 max_cq_event_handlers;
+ __u32 maxMemRegs;
+ __u32 max_phys_buf_entries; /* for phys buf list */
+ __u32 maxPDs;
+ /* The memory page sizes supported by this RNIC.
+ * Bit position i in bitmap indicates page of
+ * size (4k)^i.
+ * Phys block list mode unsupported.
+ */
+ __u32 memPgSizesBitMask;
+ __u8 canResizeWQ;
+ /*
+ * The maximum number of RDMA Reads that can be outstanding
+ * per QP with this RNIC as the target.
+ */
+ __u32 maxRDMAreadsPerQP;
+ /*
+ * The maximum number of resources used for RDMA Reads
+ * by this RNIC with this RNIC as the target.
+ */
+ __u32 maxRDMAreadResources;
+ /*
+ * The max depth per QP for initiation of RDMA Read
+ * by this RNIC.
+ */
+ __u32 maxRDMAreadQPdepth;
+ /*
+ * The maximum depth for initiation of RDMA Read
+ * operations by this RNIC on all QPs
+ */
+ __u32 maxRDMAreaddepth;
+ __u8 rq_overflow_handled;
+ __u32 can_modify_ird;
+ __u32 can_modify_ord;
+ __u32 maxMemWindows;
+ __u32 stag0_value;
+ __u8 zbva_support;
+ __u8 local_invalidate_fence;
+ __u32 cq_overflow_detection;
+};
+
+enum iwch_qp_query_flags {
+ IWCH_QP_QUERY_CONTEXT_NONE = 0x0, /* No ctx; Only attrs */
+ IWCH_QP_QUERY_CONTEXT_GET = 0x1, /* Get ctx + attrs */
+ IWCH_QP_QUERY_CONTEXT_SUSPEND = 0x2, /* Not Supported */
+
+ /*
+ * Quiesce QP context; Consumer
+ * will NOT replay outstanding WR
+ */
+ IWCH_QP_QUERY_CONTEXT_QUIESCE = 0x4,
+ IWCH_QP_QUERY_CONTEXT_REMOVE = 0x8,
+ IWCH_QP_QUERY_TEST_USERWRITE = 0x32 /* Test special */
+};
+
+struct iwch_pd *vld_pdhl(struct iwch_dev *rhp, u64 pd_h);
+struct iwch_cq *vld_cqhl(struct iwch_dev *rhp, u64 cq_h);
+struct iwch_qp *vld_qphl(struct iwch_dev *rhp, u64 qp_h);
+struct iwch_mr *vld_staghl(struct iwch_dev *rhp, u64 mem_h);
+int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
+ struct ib_send_wr **bad_wr);
+int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
+ struct ib_recv_wr **bad_wr);
+int iwch_bind_mw(struct ib_qp *qp,
+ struct ib_mw *mw,
+ struct ib_mw_bind *mw_bind);
+int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
+int iwch_post_terminate(struct iwch_qp *);
+int iwch_register_device(struct iwch_dev *dev);
+void iwch_unregister_device(struct iwch_dev *dev);
+int iwch_quiesce_qps(struct iwch_cq *chp);
+int iwch_resume_qps(struct iwch_cq *chp);
+int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
+ struct iwch_mr *mhp,
+ int shift,
+ u64 *page_list);
+int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
+ struct iwch_mr *mhp,
+ int shift,
+ u64 *page_list);
+int build_phys_page_list(struct ib_phys_buf *buffer_list,
+ int num_phys_buf,
+ u64 *iova_start,
+ u64 *total_size,
+ int *npages,
+ int *shift,
+ u64 **page_list);
+
+#ifdef IWCH_DEBUG
+#define MOD "iw_ch:"
+#define PDBG(fmt, args...) do {printk(KERN_INFO MOD fmt, ##args);} while (0)
+#else
+#define MOD "iw_ch:"
+#define PDBG(fmt, args...) do {} while (0)
+#endif
+
+#endif
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