1 files changed, 0 insertions, 584 deletions

diff --git a/drivers/net/ehea/ehea_qmr.c b/drivers/net/ehea/ehea_qmr.c
deleted file mode 100644
index f143e13b229..00000000000
--- a/drivers/net/ehea/ehea_qmr.c
+++ /dev/null
@@ -1,584 +0,0 @@
-/*
- *  linux/drivers/net/ehea/ehea_qmr.c
- *
- *  eHEA ethernet device driver for IBM eServer System p
- *
- *  (C) Copyright IBM Corp. 2006
- *
- *  Authors:
- *       Christoph Raisch <raisch@de.ibm.com>
- *       Jan-Bernd Themann <themann@de.ibm.com>
- *       Thomas Klein <tklein@de.ibm.com>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/mm.h>
-#include "ehea.h"
-#include "ehea_phyp.h"
-#include "ehea_qmr.h"
-
-static void *hw_qpageit_get_inc(struct hw_queue *queue)
-{
-	void *retvalue = hw_qeit_get(queue);
-
-	queue->current_q_offset += queue->pagesize;
-	if (queue->current_q_offset > queue->queue_length) {
-		queue->current_q_offset -= queue->pagesize;
-		retvalue = NULL;
-	} else if (((u64) retvalue) & (EHEA_PAGESIZE-1)) {
-		ehea_error("not on pageboundary");
-		retvalue = NULL;
-	}
-	return retvalue;
-}
-
-static int hw_queue_ctor(struct hw_queue *queue, const u32 nr_of_pages,
-			  const u32 pagesize, const u32 qe_size)
-{
-	int pages_per_kpage = PAGE_SIZE / pagesize;
-	int i, k;
-
-	if ((pagesize > PAGE_SIZE) || (!pages_per_kpage)) {
-		ehea_error("pagesize conflict! kernel pagesize=%d, "
-			   "ehea pagesize=%d", (int)PAGE_SIZE, (int)pagesize);
-		return -EINVAL;
-	}
-
-	queue->queue_length = nr_of_pages * pagesize;
-	queue->queue_pages = kmalloc(nr_of_pages * sizeof(void*), GFP_KERNEL);
-	if (!queue->queue_pages) {
-		ehea_error("no mem for queue_pages");
-		return -ENOMEM;
-	}
-
-	/*
-	 * allocate pages for queue:
-	 * outer loop allocates whole kernel pages (page aligned) and
-	 * inner loop divides a kernel page into smaller hea queue pages
-	 */
-	i = 0;
-	while (i < nr_of_pages) {
-		u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL);
-		if (!kpage)
-			goto out_nomem;
-		for (k = 0; k < pages_per_kpage && i < nr_of_pages; k++) {
-			(queue->queue_pages)[i] = (struct ehea_page*)kpage;
-			kpage += pagesize;
-			i++;
-		}
-	}
-
-	queue->current_q_offset = 0;
-	queue->qe_size = qe_size;
-	queue->pagesize = pagesize;
-	queue->toggle_state = 1;
-
-	return 0;
-out_nomem:
-	for (i = 0; i < nr_of_pages; i += pages_per_kpage) {
-		if (!(queue->queue_pages)[i])
-			break;
-		free_page((unsigned long)(queue->queue_pages)[i]);
-	}
-	return -ENOMEM;
-}
-
-static void hw_queue_dtor(struct hw_queue *queue)
-{
-	int pages_per_kpage = PAGE_SIZE / queue->pagesize;
-	int i, nr_pages;
-
-	if (!queue || !queue->queue_pages)
-		return;
-
-	nr_pages = queue->queue_length / queue->pagesize;
-
-	for (i = 0; i < nr_pages; i += pages_per_kpage)
-		free_page((unsigned long)(queue->queue_pages)[i]);
-
-	kfree(queue->queue_pages);
-}
-
-struct ehea_cq *ehea_create_cq(struct ehea_adapter *adapter,
-			       int nr_of_cqe, u64 eq_handle, u32 cq_token)
-{
-	struct ehea_cq *cq;
-	struct h_epa epa;
-	u64 *cq_handle_ref, hret, rpage;
-	u32 act_nr_of_entries, act_pages, counter;
-	int ret;
-	void *vpage;
-
-	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
-	if (!cq) {
-		ehea_error("no mem for cq");
-		goto out_nomem;
-	}
-
-	cq->attr.max_nr_of_cqes = nr_of_cqe;
-	cq->attr.cq_token = cq_token;
-	cq->attr.eq_handle = eq_handle;
-
-	cq->adapter = adapter;
-
-	cq_handle_ref = &cq->fw_handle;
-	act_nr_of_entries = 0;
-	act_pages = 0;
-
-	hret = ehea_h_alloc_resource_cq(adapter->handle, &cq->attr,
-					&cq->fw_handle, &cq->epas);
-	if (hret != H_SUCCESS) {
-		ehea_error("alloc_resource_cq failed");
-		goto out_freemem;
-	}
-
-	ret = hw_queue_ctor(&cq->hw_queue, cq->attr.nr_pages,
-			    EHEA_PAGESIZE, sizeof(struct ehea_cqe));
-	if (ret)
-		goto out_freeres;
-
-	for (counter = 0; counter < cq->attr.nr_pages; counter++) {
-		vpage = hw_qpageit_get_inc(&cq->hw_queue);
-		if (!vpage) {
-			ehea_error("hw_qpageit_get_inc failed");
-			goto out_kill_hwq;
-		}
-
-		rpage = virt_to_abs(vpage);
-		hret = ehea_h_register_rpage(adapter->handle,
-					     0, EHEA_CQ_REGISTER_ORIG,
-					     cq->fw_handle, rpage, 1);
-		if (hret < H_SUCCESS) {
-			ehea_error("register_rpage_cq failed ehea_cq=%p "
-				   "hret=%lx counter=%i act_pages=%i",
-				   cq, hret, counter, cq->attr.nr_pages);
-			goto out_kill_hwq;
-		}
-
-		if (counter == (cq->attr.nr_pages - 1)) {
-			vpage = hw_qpageit_get_inc(&cq->hw_queue);
-
-			if ((hret != H_SUCCESS) || (vpage)) {
-				ehea_error("registration of pages not "
-					   "complete hret=%lx\n", hret);
-				goto out_kill_hwq;
-			}
-		} else {
-			if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
-				ehea_error("CQ: registration of page failed "
-					   "hret=%lx\n", hret);
-				goto out_kill_hwq;
-			}
-		}
-	}
-
-	hw_qeit_reset(&cq->hw_queue);
-	epa = cq->epas.kernel;
-	ehea_reset_cq_ep(cq);
-	ehea_reset_cq_n1(cq);
-
-	return cq;
-
-out_kill_hwq:
-	hw_queue_dtor(&cq->hw_queue);
-
-out_freeres:
-	ehea_h_free_resource(adapter->handle, cq->fw_handle);
-
-out_freemem:
-	kfree(cq);
-
-out_nomem:
-	return NULL;
-}
-
-int ehea_destroy_cq(struct ehea_cq *cq)
-{
-	u64 adapter_handle, hret;
-
-	if (!cq)
-		return 0;
-
-	adapter_handle = cq->adapter->handle;
-
-	/* deregister all previous registered pages */
-	hret = ehea_h_free_resource(adapter_handle, cq->fw_handle);
-	if (hret != H_SUCCESS) {
-		ehea_error("destroy CQ failed");
-		return -EIO;
-	}
-
-	hw_queue_dtor(&cq->hw_queue);
-	kfree(cq);
-
-	return 0;
-}
-
-struct ehea_eq *ehea_create_eq(struct ehea_adapter *adapter,
-			       const enum ehea_eq_type type,
-			       const u32 max_nr_of_eqes, const u8 eqe_gen)
-{
-	int ret, i;
-	u64 hret, rpage;
-	void *vpage;
-	struct ehea_eq *eq;
-
-	eq = kzalloc(sizeof(*eq), GFP_KERNEL);
-	if (!eq) {
-		ehea_error("no mem for eq");
-		return NULL;
-	}
-
-	eq->adapter = adapter;
-	eq->attr.type = type;
-	eq->attr.max_nr_of_eqes = max_nr_of_eqes;
-	eq->attr.eqe_gen = eqe_gen;
-	spin_lock_init(&eq->spinlock);
-
-	hret = ehea_h_alloc_resource_eq(adapter->handle,
-					&eq->attr, &eq->fw_handle);
-	if (hret != H_SUCCESS) {
-		ehea_error("alloc_resource_eq failed");
-		goto out_freemem;
-	}
-
-	ret = hw_queue_ctor(&eq->hw_queue, eq->attr.nr_pages,
-			    EHEA_PAGESIZE, sizeof(struct ehea_eqe));
-	if (ret) {
-		ehea_error("can't allocate eq pages");
-		goto out_freeres;
-	}
-
-	for (i = 0; i < eq->attr.nr_pages; i++) {
-		vpage = hw_qpageit_get_inc(&eq->hw_queue);
-		if (!vpage) {
-			ehea_error("hw_qpageit_get_inc failed");
-			hret = H_RESOURCE;
-			goto out_kill_hwq;
-		}
-
-		rpage = virt_to_abs(vpage);
-
-		hret = ehea_h_register_rpage(adapter->handle, 0,
-					     EHEA_EQ_REGISTER_ORIG,
-					     eq->fw_handle, rpage, 1);
-
-		if (i == (eq->attr.nr_pages - 1)) {
-			/* last page */
-			vpage = hw_qpageit_get_inc(&eq->hw_queue);
-			if ((hret != H_SUCCESS) || (vpage)) {
-				goto out_kill_hwq;
-			}
-		} else {
-			if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
-				goto out_kill_hwq;
-			}
-		}
-	}
-
-	hw_qeit_reset(&eq->hw_queue);
-	return eq;
-
-out_kill_hwq:
-	hw_queue_dtor(&eq->hw_queue);
-
-out_freeres:
-	ehea_h_free_resource(adapter->handle, eq->fw_handle);
-
-out_freemem:
-	kfree(eq);
-	return NULL;
-}
-
-struct ehea_eqe *ehea_poll_eq(struct ehea_eq *eq)
-{
-	struct ehea_eqe *eqe;
-	unsigned long flags;
-
-	spin_lock_irqsave(&eq->spinlock, flags);
-	eqe = (struct ehea_eqe*)hw_eqit_eq_get_inc_valid(&eq->hw_queue);
-	spin_unlock_irqrestore(&eq->spinlock, flags);
-
-	return eqe;
-}
-
-int ehea_destroy_eq(struct ehea_eq *eq)
-{
-	u64 hret;
-	unsigned long flags;
-
-	if (!eq)
-		return 0;
-
-	spin_lock_irqsave(&eq->spinlock, flags);
-
-	hret = ehea_h_free_resource(eq->adapter->handle, eq->fw_handle);
-	spin_unlock_irqrestore(&eq->spinlock, flags);
-
-	if (hret != H_SUCCESS) {
-		ehea_error("destroy_eq failed");
-		return -EIO;
-	}
-
-	hw_queue_dtor(&eq->hw_queue);
-	kfree(eq);
-
-	return 0;
-}
-
-/**
- * allocates memory for a queue and registers pages in phyp
- */
-int ehea_qp_alloc_register(struct ehea_qp *qp, struct hw_queue *hw_queue,
-			   int nr_pages, int wqe_size, int act_nr_sges,
-			   struct ehea_adapter *adapter, int h_call_q_selector)
-{
-	u64 hret, rpage;
-	int ret, cnt;
-	void *vpage;
-
-	ret = hw_queue_ctor(hw_queue, nr_pages, EHEA_PAGESIZE, wqe_size);
-	if (ret)
-		return ret;
-
-	for (cnt = 0; cnt < nr_pages; cnt++) {
-		vpage = hw_qpageit_get_inc(hw_queue);
-		if (!vpage) {
-			ehea_error("hw_qpageit_get_inc failed");
-			goto out_kill_hwq;
-		}
-		rpage = virt_to_abs(vpage);
-		hret = ehea_h_register_rpage(adapter->handle,
-					     0, h_call_q_selector,
-					     qp->fw_handle, rpage, 1);
-		if (hret < H_SUCCESS) {
-			ehea_error("register_rpage_qp failed");
-			goto out_kill_hwq;
-		}
-	}
-	hw_qeit_reset(hw_queue);
-	return 0;
-
-out_kill_hwq:
-	hw_queue_dtor(hw_queue);
-	return -EIO;
-}
-
-static inline u32 map_wqe_size(u8 wqe_enc_size)
-{
-	return 128 << wqe_enc_size;
-}
-
-struct ehea_qp *ehea_create_qp(struct ehea_adapter *adapter,
-			       u32 pd, struct ehea_qp_init_attr *init_attr)
-{
-	int ret;
-	u64 hret;
-	struct ehea_qp *qp;
-	u32 wqe_size_in_bytes_sq, wqe_size_in_bytes_rq1;
-	u32 wqe_size_in_bytes_rq2, wqe_size_in_bytes_rq3;
-
-
-	qp = kzalloc(sizeof(*qp), GFP_KERNEL);
-	if (!qp) {
-		ehea_error("no mem for qp");
-		return NULL;
-	}
-
-	qp->adapter = adapter;
-
-	hret = ehea_h_alloc_resource_qp(adapter->handle, init_attr, pd,
-					&qp->fw_handle, &qp->epas);
-	if (hret != H_SUCCESS) {
-		ehea_error("ehea_h_alloc_resource_qp failed");
-		goto out_freemem;
-	}
-
-	wqe_size_in_bytes_sq = map_wqe_size(init_attr->act_wqe_size_enc_sq);
-	wqe_size_in_bytes_rq1 = map_wqe_size(init_attr->act_wqe_size_enc_rq1);
-	wqe_size_in_bytes_rq2 = map_wqe_size(init_attr->act_wqe_size_enc_rq2);
-	wqe_size_in_bytes_rq3 = map_wqe_size(init_attr->act_wqe_size_enc_rq3);
-
-	ret = ehea_qp_alloc_register(qp, &qp->hw_squeue, init_attr->nr_sq_pages,
-				     wqe_size_in_bytes_sq,
-				     init_attr->act_wqe_size_enc_sq, adapter,
-				     0);
-	if (ret) {
-		ehea_error("can't register for sq ret=%x", ret);
-		goto out_freeres;
-	}
-
-	ret = ehea_qp_alloc_register(qp, &qp->hw_rqueue1,
-				     init_attr->nr_rq1_pages,
-				     wqe_size_in_bytes_rq1,
-				     init_attr->act_wqe_size_enc_rq1,
-				     adapter, 1);
-	if (ret) {
-		ehea_error("can't register for rq1 ret=%x", ret);
-		goto out_kill_hwsq;
-	}
-
-	if (init_attr->rq_count > 1) {
-		ret = ehea_qp_alloc_register(qp, &qp->hw_rqueue2,
-					     init_attr->nr_rq2_pages,
-					     wqe_size_in_bytes_rq2,
-					     init_attr->act_wqe_size_enc_rq2,
-					     adapter, 2);
-		if (ret) {
-			ehea_error("can't register for rq2 ret=%x", ret);
-			goto out_kill_hwr1q;
-		}
-	}
-
-	if (init_attr->rq_count > 2) {
-		ret = ehea_qp_alloc_register(qp, &qp->hw_rqueue3,
-					     init_attr->nr_rq3_pages,
-					     wqe_size_in_bytes_rq3,
-					     init_attr->act_wqe_size_enc_rq3,
-					     adapter, 3);
-		if (ret) {
-			ehea_error("can't register for rq3 ret=%x", ret);
-			goto out_kill_hwr2q;
-		}
-	}
-
-	qp->init_attr = *init_attr;
-
-	return qp;
-
-out_kill_hwr2q:
-	hw_queue_dtor(&qp->hw_rqueue2);
-
-out_kill_hwr1q:
-	hw_queue_dtor(&qp->hw_rqueue1);
-
-out_kill_hwsq:
-	hw_queue_dtor(&qp->hw_squeue);
-
-out_freeres:
-	ehea_h_disable_and_get_hea(adapter->handle, qp->fw_handle);
-	ehea_h_free_resource(adapter->handle, qp->fw_handle);
-
-out_freemem:
-	kfree(qp);
-	return NULL;
-}
-
-int ehea_destroy_qp(struct ehea_qp *qp)
-{
-	u64 hret;
-	struct ehea_qp_init_attr *qp_attr = &qp->init_attr;
-
-	if (!qp)
-		return 0;
-
-	hret = ehea_h_free_resource(qp->adapter->handle, qp->fw_handle);
-	if (hret != H_SUCCESS) {
-		ehea_error("destroy_qp failed");
-		return -EIO;
-	}
-
-	hw_queue_dtor(&qp->hw_squeue);
-	hw_queue_dtor(&qp->hw_rqueue1);
-
-   	if (qp_attr->rq_count > 1)
-		hw_queue_dtor(&qp->hw_rqueue2);
-   	if (qp_attr->rq_count > 2)
-		hw_queue_dtor(&qp->hw_rqueue3);
-	kfree(qp);
-
-	return 0;
-}
-
-int ehea_reg_mr_adapter(struct ehea_adapter *adapter)
-{
-	int i, k, ret;
-	u64 hret, pt_abs, start, end, nr_pages;
-	u32 acc_ctrl = EHEA_MR_ACC_CTRL;
-	u64 *pt;
-
-	start = KERNELBASE;
-	end = (u64)high_memory;
-	nr_pages = (end - start) / EHEA_PAGESIZE;
-
-	pt =  kzalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!pt) {
-		ehea_error("no mem");
-		ret = -ENOMEM;
-		goto out;
-	}
-	pt_abs = virt_to_abs(pt);
-
-	hret = ehea_h_alloc_resource_mr(adapter->handle, start, end - start,
-					acc_ctrl, adapter->pd,
-					&adapter->mr.handle, &adapter->mr.lkey);
-	if (hret != H_SUCCESS) {
-		ehea_error("alloc_resource_mr failed");
-		ret = -EIO;
-		goto out;
-	}
-
-	adapter->mr.vaddr = KERNELBASE;
-	k = 0;
-
-	while (nr_pages > 0) {
-		if (nr_pages > 1) {
-			u64 num_pages = min(nr_pages, (u64)512);
-			for (i = 0; i < num_pages; i++)
-				pt[i] = virt_to_abs((void*)(((u64)start) +
-							    ((k++) *
-							     EHEA_PAGESIZE)));
-
-			hret = ehea_h_register_rpage_mr(adapter->handle,
-							adapter->mr.handle, 0,
-							0, (u64)pt_abs,
-							num_pages);
-			nr_pages -= num_pages;
-		} else {
-			u64 abs_adr = virt_to_abs((void*)(((u64)start) +
-							  (k * EHEA_PAGESIZE)));
-
-			hret = ehea_h_register_rpage_mr(adapter->handle,
-							adapter->mr.handle, 0,
-							0, abs_adr,1);
-			nr_pages--;
-		}
-
-		if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED)) {
-			ehea_h_free_resource(adapter->handle,
-						adapter->mr.handle);
-			ehea_error("register_rpage_mr failed: hret = %lX",
-				   hret);
-			ret = -EIO;
-			goto out;
-		}
-	}
-
-	if (hret != H_SUCCESS) {
-		ehea_h_free_resource(adapter->handle, adapter->mr.handle);
-		ehea_error("register_rpage failed for last page: hret = %lX",
-			   hret);
-		ret = -EIO;
-		goto out;
-	}
-	ret = 0;
-out:
-	kfree(pt);
-	return ret;
-}
-
-