rdma: Remove nes

This driver was first merged over 10 years ago and has not seen major
activity by the authors in the last 7 years. However, in that time it has
been patched 150 times to adapt it to changing kernel APIs.

Further, the hardware has several issues, like not supporting 64 bit DMA,
that make it rather uninteresting for use with modern systems and RDMA.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 0 insertions, 1205 deletions

diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
deleted file mode 100644
index e00add6d78ec..000000000000
--- a/drivers/infiniband/hw/nes/nes.c
+++ /dev/null
@@ -1,1205 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation.  All rights reserved.
- * Copyright (c) 2005 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/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/crc32.h>
-#include <linux/in.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/if_arp.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/byteorder.h>
-#include <rdma/ib_smi.h>
-#include <rdma/ib_verbs.h>
-#include <rdma/ib_pack.h>
-#include <rdma/iw_cm.h>
-
-#include "nes.h"
-
-#include <net/netevent.h>
-#include <net/neighbour.h>
-#include <linux/route.h>
-#include <net/ip_fib.h>
-
-MODULE_AUTHOR("NetEffect");
-MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
-MODULE_LICENSE("Dual BSD/GPL");
-
-int interrupt_mod_interval = 0;
-
-/* Interoperability */
-int mpa_version = 1;
-module_param(mpa_version, int, 0644);
-MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
-
-/* Interoperability */
-int disable_mpa_crc = 0;
-module_param(disable_mpa_crc, int, 0644);
-MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
-
-unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
-module_param(nes_drv_opt, int, 0644);
-MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
-
-unsigned int nes_debug_level = 0;
-module_param_named(debug_level, nes_debug_level, uint, 0644);
-MODULE_PARM_DESC(debug_level, "Enable debug output level");
-
-unsigned int wqm_quanta = 0x10000;
-module_param(wqm_quanta, int, 0644);
-MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
-
-static bool limit_maxrdreqsz;
-module_param(limit_maxrdreqsz, bool, 0644);
-MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
-
-LIST_HEAD(nes_adapter_list);
-static LIST_HEAD(nes_dev_list);
-
-atomic_t qps_destroyed;
-
-static unsigned int ee_flsh_adapter;
-static unsigned int sysfs_nonidx_addr;
-static unsigned int sysfs_idx_addr;
-
-static const struct pci_device_id nes_pci_table[] = {
-	{ PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
-	{ PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
-	{0}
-};
-
-MODULE_DEVICE_TABLE(pci, nes_pci_table);
-
-static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
-static int nes_net_event(struct notifier_block *, unsigned long, void *);
-static int nes_notifiers_registered;
-
-
-static struct notifier_block nes_inetaddr_notifier = {
-	.notifier_call = nes_inetaddr_event
-};
-
-static struct notifier_block nes_net_notifier = {
-	.notifier_call = nes_net_event
-};
-
-/**
- * nes_inetaddr_event
- */
-static int nes_inetaddr_event(struct notifier_block *notifier,
-		unsigned long event, void *ptr)
-{
-	struct in_ifaddr *ifa = ptr;
-	struct net_device *event_netdev = ifa->ifa_dev->dev;
-	struct nes_device *nesdev;
-	struct net_device *netdev;
-	struct net_device *upper_dev;
-	struct nes_vnic *nesvnic;
-	unsigned int is_bonded;
-
-	nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
-		  &ifa->ifa_address, &ifa->ifa_mask);
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
-				nesdev, nesdev->netdev[0]->name);
-		netdev = nesdev->netdev[0];
-		nesvnic = netdev_priv(netdev);
-		upper_dev = netdev_master_upper_dev_get(netdev);
-		is_bonded = netif_is_bond_slave(netdev) &&
-			    (upper_dev == event_netdev);
-		if ((netdev == event_netdev) || is_bonded) {
-			if (nesvnic->rdma_enabled == 0) {
-				nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
-						" RDMA is not enabled.\n",
-						netdev->name);
-				return NOTIFY_OK;
-			}
-			/* we have ifa->ifa_address/mask here if we need it */
-			switch (event) {
-				case NETDEV_DOWN:
-					nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
-					nes_write_indexed(nesdev,
-							NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
-
-					nes_manage_arp_cache(netdev, netdev->dev_addr,
-							ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
-					nesvnic->local_ipaddr = 0;
-					if (is_bonded)
-						continue;
-					else
-						return NOTIFY_OK;
-					break;
-				case NETDEV_UP:
-					nes_debug(NES_DBG_NETDEV, "event:UP\n");
-
-					if (nesvnic->local_ipaddr != 0) {
-						nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
-						return NOTIFY_OK;
-					}
-					/* fall through */
-				case NETDEV_CHANGEADDR:
-					/* Add the address to the IP table */
-					if (upper_dev) {
-						struct in_device *in;
-
-						rcu_read_lock();
-						in = __in_dev_get_rcu(upper_dev);
-						nesvnic->local_ipaddr = in->ifa_list->ifa_address;
-						rcu_read_unlock();
-					} else {
-						nesvnic->local_ipaddr = ifa->ifa_address;
-					}
-
-					nes_write_indexed(nesdev,
-							NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
-							ntohl(nesvnic->local_ipaddr));
-					nes_manage_arp_cache(netdev, netdev->dev_addr,
-							ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
-					if (is_bonded)
-						continue;
-					else
-						return NOTIFY_OK;
-					break;
-				default:
-					break;
-			}
-		}
-	}
-
-	return NOTIFY_DONE;
-}
-
-
-/**
- * nes_net_event
- */
-static int nes_net_event(struct notifier_block *notifier,
-		unsigned long event, void *ptr)
-{
-	struct neighbour *neigh = ptr;
-	struct nes_device *nesdev;
-	struct net_device *netdev;
-	struct nes_vnic *nesvnic;
-
-	switch (event) {
-		case NETEVENT_NEIGH_UPDATE:
-			list_for_each_entry(nesdev, &nes_dev_list, list) {
-				/* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
-				netdev = nesdev->netdev[0];
-				nesvnic = netdev_priv(netdev);
-				if (netdev == neigh->dev) {
-					if (nesvnic->rdma_enabled == 0) {
-						nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
-								netdev->name);
-					} else {
-						if (neigh->nud_state & NUD_VALID) {
-							nes_manage_arp_cache(neigh->dev, neigh->ha,
-									ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
-						} else {
-							nes_manage_arp_cache(neigh->dev, neigh->ha,
-									ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
-						}
-					}
-					return NOTIFY_OK;
-				}
-			}
-			break;
-		default:
-			nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
-			break;
-	}
-
-	return NOTIFY_DONE;
-}
-
-
-/**
- * nes_add_ref
- */
-void nes_add_ref(struct ib_qp *ibqp)
-{
-	struct nes_qp *nesqp;
-
-	nesqp = to_nesqp(ibqp);
-	nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
-			ibqp->qp_num, atomic_read(&nesqp->refcount));
-	atomic_inc(&nesqp->refcount);
-}
-
-static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
-{
-	unsigned long flags;
-	struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
-	struct nes_adapter *nesadapter = nesdev->nesadapter;
-
-	atomic_inc(&qps_destroyed);
-
-	/* Free the control structures */
-
-	if (nesqp->pbl_vbase) {
-		pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
-				nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
-		spin_lock_irqsave(&nesadapter->pbl_lock, flags);
-		nesadapter->free_256pbl++;
-		spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
-		pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
-		nesqp->pbl_vbase = NULL;
-
-	} else {
-		pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
-				nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
-	}
-	nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
-
-	nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
-	kfree(nesqp->allocated_buffer);
-
-}
-
-/**
- * nes_rem_ref
- */
-void nes_rem_ref(struct ib_qp *ibqp)
-{
-	u64 u64temp;
-	struct nes_qp *nesqp;
-	struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
-	struct nes_device *nesdev = nesvnic->nesdev;
-	struct nes_hw_cqp_wqe *cqp_wqe;
-	struct nes_cqp_request *cqp_request;
-	u32 opcode;
-
-	nesqp = to_nesqp(ibqp);
-
-	if (atomic_read(&nesqp->refcount) == 0) {
-		printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
-				__func__, ibqp->qp_num, nesqp->last_aeq);
-		BUG();
-	}
-
-	if (atomic_dec_and_test(&nesqp->refcount)) {
-		if (nesqp->pau_mode)
-			nes_destroy_pau_qp(nesdev, nesqp);
-
-		/* Destroy the QP */
-		cqp_request = nes_get_cqp_request(nesdev);
-		if (cqp_request == NULL) {
-			nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
-			return;
-		}
-		cqp_request->waiting = 0;
-		cqp_request->callback = 1;
-		cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
-		cqp_request->cqp_callback_pointer = nesqp;
-		cqp_wqe = &cqp_request->cqp_wqe;
-
-		nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-		opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
-
-		if (nesqp->hte_added) {
-			opcode  |= NES_CQP_QP_DEL_HTE;
-			nesqp->hte_added = 0;
-		}
-		set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
-		set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
-		u64temp = (u64)nesqp->nesqp_context_pbase;
-		set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-		nes_post_cqp_request(nesdev, cqp_request);
-	}
-}
-
-
-/**
- * nes_get_qp
- */
-struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
-{
-	struct nes_vnic *nesvnic = to_nesvnic(device);
-	struct nes_device *nesdev = nesvnic->nesdev;
-	struct nes_adapter *nesadapter = nesdev->nesadapter;
-
-	if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
-		return NULL;
-
-	return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
-}
-
-
-/**
- * nes_print_macaddr
- */
-static void nes_print_macaddr(struct net_device *netdev)
-{
-	nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
-		  netdev->name, netdev->dev_addr, netdev->irq);
-}
-
-/**
- * nes_interrupt - handle interrupts
- */
-static irqreturn_t nes_interrupt(int irq, void *dev_id)
-{
-	struct nes_device *nesdev = (struct nes_device *)dev_id;
-	int handled = 0;
-	u32 int_mask;
-	u32 int_req;
-	u32 int_stat;
-	u32 intf_int_stat;
-	u32 timer_stat;
-
-	if (nesdev->msi_enabled) {
-		/* No need to read the interrupt pending register if msi is enabled */
-		handled = 1;
-	} else {
-		if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
-			/* Master interrupt enable provides synchronization for kicking off bottom half
-			  when interrupt sharing is going on */
-			int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
-			if (int_mask & 0x80000000) {
-				/* Check interrupt status to see if this might be ours */
-				int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
-				int_req = nesdev->int_req;
-				if (int_stat&int_req) {
-					/* if interesting CEQ or AEQ is pending, claim the interrupt */
-					if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
-						handled = 1;
-					} else {
-						if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
-							/* Timer might be running but might be for another function */
-							timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
-							if ((timer_stat & nesdev->timer_int_req) != 0) {
-								handled = 1;
-							}
-						}
-						if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
-								(handled == 0)) {
-							intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
-							if ((intf_int_stat & nesdev->intf_int_req) != 0) {
-								handled = 1;
-							}
-						}
-					}
-					if (handled) {
-						nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
-						int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
-						/* Save off the status to save an additional read */
-						nesdev->int_stat = int_stat;
-						nesdev->napi_isr_ran = 1;
-					}
-				}
-			}
-		} else {
-			handled = nes_read32(nesdev->regs+NES_INT_PENDING);
-		}
-	}
-
-	if (handled) {
-
-		if (nes_napi_isr(nesdev) == 0) {
-			tasklet_schedule(&nesdev->dpc_tasklet);
-
-		}
-		return IRQ_HANDLED;
-	} else {
-		return IRQ_NONE;
-	}
-}
-
-
-/**
- * nes_probe - Device initialization
- */
-static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
-{
-	struct net_device *netdev = NULL;
-	struct nes_device *nesdev = NULL;
-	int ret = 0;
-	void __iomem *mmio_regs = NULL;
-	u8 hw_rev;
-
-	printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
-			DRV_VERSION, pci_name(pcidev));
-
-	ret = pci_enable_device(pcidev);
-	if (ret) {
-		printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
-		goto bail0;
-	}
-
-	nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
-			(long unsigned int)pci_resource_start(pcidev, BAR_0),
-			(long unsigned int)pci_resource_len(pcidev, BAR_0));
-	nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
-			(long unsigned int)pci_resource_start(pcidev, BAR_1),
-			(long unsigned int)pci_resource_len(pcidev, BAR_1));
-
-	/* Make sure PCI base addr are MMIO */
-	if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
-			!(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
-		printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
-		ret = -ENODEV;
-		goto bail1;
-	}
-
-	/* Reserve PCI I/O and memory resources */
-	ret = pci_request_regions(pcidev, DRV_NAME);
-	if (ret) {
-		printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
-		goto bail1;
-	}
-
-	if ((sizeof(dma_addr_t) > 4)) {
-		ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
-		if (ret < 0) {
-			printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
-			goto bail2;
-		}
-		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
-		if (ret) {
-			printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
-			goto bail2;
-		}
-	} else {
-		ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
-		if (ret < 0) {
-			printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
-			goto bail2;
-		}
-		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
-		if (ret) {
-			printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
-			goto bail2;
-		}
-	}
-
-	pci_set_master(pcidev);
-
-	/* Allocate hardware structure */
-	nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
-	if (!nesdev) {
-		ret = -ENOMEM;
-		goto bail2;
-	}
-
-	nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
-	nesdev->pcidev = pcidev;
-	pci_set_drvdata(pcidev, nesdev);
-
-	pci_read_config_byte(pcidev, 0x0008, &hw_rev);
-	nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
-
-	spin_lock_init(&nesdev->indexed_regs_lock);
-
-	/* Remap the PCI registers in adapter BAR0 to kernel VA space */
-	mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
-				    pci_resource_len(pcidev, BAR_0));
-	if (mmio_regs == NULL) {
-		printk(KERN_ERR PFX "Unable to remap BAR0\n");
-		ret = -EIO;
-		goto bail3;
-	}
-	nesdev->regs = mmio_regs;
-	nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
-
-	/* Ensure interrupts are disabled */
-	nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
-
-	if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
-		if (!pci_enable_msi(nesdev->pcidev)) {
-			nesdev->msi_enabled = 1;
-			nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
-					pci_name(pcidev));
-		} else {
-			nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
-					pci_name(pcidev));
-		}
-	} else {
-		nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
-				pci_name(pcidev));
-	}
-
-	nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
-	nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
-
-	/* Init the adapter */
-	nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
-	if (!nesdev->nesadapter) {
-		printk(KERN_ERR PFX "Unable to initialize adapter.\n");
-		ret = -ENOMEM;
-		goto bail5;
-	}
-	nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
-	nesdev->nesadapter->wqm_quanta = wqm_quanta;
-
-	/* nesdev->base_doorbell_index =
-			nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
-	nesdev->base_doorbell_index = 1;
-	nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
-	if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
-		switch (PCI_FUNC(nesdev->pcidev->devfn) %
-			nesdev->nesadapter->port_count) {
-		case 1:
-			nesdev->mac_index = 2;
-			break;
-		case 2:
-			nesdev->mac_index = 1;
-			break;
-		case 3:
-			nesdev->mac_index = 3;
-			break;
-		case 0:
-		default:
-			nesdev->mac_index = 0;
-		}
-	} else {
-		nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
-						nesdev->nesadapter->port_count;
-	}
-
-	if ((limit_maxrdreqsz ||
-	     ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
-	      (hw_rev == NE020_REV1))) &&
-	    (pcie_get_readrq(pcidev) > 256)) {
-		if (pcie_set_readrq(pcidev, 256))
-			printk(KERN_ERR PFX "Unable to set max read request"
-				" to 256 bytes\n");
-		else
-			nes_debug(NES_DBG_INIT, "Max read request size set"
-				" to 256 bytes\n");
-	}
-
-	tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
-
-	/* bring up the Control QP */
-	if (nes_init_cqp(nesdev)) {
-		ret = -ENODEV;
-		goto bail6;
-	}
-
-	/* Arm the CCQ */
-	nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
-			PCI_FUNC(nesdev->pcidev->devfn));
-	nes_read32(nesdev->regs+NES_CQE_ALLOC);
-
-	/* Enable the interrupts */
-	nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
-			(1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
-	if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
-		nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
-	}
-
-	/* TODO: This really should be the first driver to load, not function 0 */
-	if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
-		/* pick up PCI and critical errors if the first driver to load */
-		nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
-		nesdev->int_req |= NES_INT_INTF;
-	} else {
-		nesdev->intf_int_req = 0;
-	}
-	nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
-	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
-	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
-	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
-	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
-
-	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
-
-	/* deal with both periodic and one_shot */
-	nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
-	nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
-	nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
-			PCI_FUNC(nesdev->pcidev->devfn),
-			nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
-
-	nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
-
-	list_add_tail(&nesdev->list, &nes_dev_list);
-
-	/* Request an interrupt line for the driver */
-	ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
-	if (ret) {
-		printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
-				pci_name(pcidev), pcidev->irq);
-		goto bail65;
-	}
-
-	nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
-
-	if (nes_notifiers_registered == 0) {
-		register_inetaddr_notifier(&nes_inetaddr_notifier);
-		register_netevent_notifier(&nes_net_notifier);
-	}
-	nes_notifiers_registered++;
-
-	INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
-
-	/* Initialize network devices */
-	netdev = nes_netdev_init(nesdev, mmio_regs);
-	if (netdev == NULL) {
-		ret = -ENOMEM;
-		goto bail7;
-	}
-
-	/* Register network device */
-	ret = register_netdev(netdev);
-	if (ret) {
-		printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
-		nes_netdev_destroy(netdev);
-		goto bail7;
-	}
-
-	nes_print_macaddr(netdev);
-
-	nesdev->netdev_count++;
-	nesdev->nesadapter->netdev_count++;
-
-	printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
-			pci_name(pcidev));
-	return 0;
-
-	bail7:
-	printk(KERN_ERR PFX "bail7\n");
-	while (nesdev->netdev_count > 0) {
-		nesdev->netdev_count--;
-		nesdev->nesadapter->netdev_count--;
-
-		unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
-		nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
-	}
-
-	nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
-			nesdev->netdev_count, nesdev->nesadapter->netdev_count);
-
-	nes_notifiers_registered--;
-	if (nes_notifiers_registered == 0) {
-		unregister_netevent_notifier(&nes_net_notifier);
-		unregister_inetaddr_notifier(&nes_inetaddr_notifier);
-	}
-
-	list_del(&nesdev->list);
-	nes_destroy_cqp(nesdev);
-
-	bail65:
-	printk(KERN_ERR PFX "bail65\n");
-	free_irq(pcidev->irq, nesdev);
-	if (nesdev->msi_enabled) {
-		pci_disable_msi(pcidev);
-	}
-	bail6:
-	printk(KERN_ERR PFX "bail6\n");
-	tasklet_kill(&nesdev->dpc_tasklet);
-	/* Deallocate the Adapter Structure */
-	nes_destroy_adapter(nesdev->nesadapter);
-
-	bail5:
-	printk(KERN_ERR PFX "bail5\n");
-	iounmap(nesdev->regs);
-
-	bail3:
-	printk(KERN_ERR PFX "bail3\n");
-	kfree(nesdev);
-
-	bail2:
-	pci_release_regions(pcidev);
-
-	bail1:
-	pci_disable_device(pcidev);
-
-	bail0:
-	return ret;
-}
-
-
-/**
- * nes_remove - unload from kernel
- */
-static void nes_remove(struct pci_dev *pcidev)
-{
-	struct nes_device *nesdev = pci_get_drvdata(pcidev);
-	struct net_device *netdev;
-	int netdev_index = 0;
-	unsigned long flags;
-
-	if (nesdev->netdev_count) {
-		netdev = nesdev->netdev[netdev_index];
-		if (netdev) {
-			netif_stop_queue(netdev);
-			unregister_netdev(netdev);
-			nes_netdev_destroy(netdev);
-
-			nesdev->netdev[netdev_index] = NULL;
-			nesdev->netdev_count--;
-			nesdev->nesadapter->netdev_count--;
-		}
-	}
-
-	nes_notifiers_registered--;
-	if (nes_notifiers_registered == 0) {
-		unregister_netevent_notifier(&nes_net_notifier);
-		unregister_inetaddr_notifier(&nes_inetaddr_notifier);
-	}
-
-	list_del(&nesdev->list);
-	nes_destroy_cqp(nesdev);
-
-	free_irq(pcidev->irq, nesdev);
-	tasklet_kill(&nesdev->dpc_tasklet);
-
-	spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
-	if (nesdev->link_recheck) {
-		spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
-		cancel_delayed_work_sync(&nesdev->work);
-	} else {
-		spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
-	}
-
-	/* Deallocate the Adapter Structure */
-	nes_destroy_adapter(nesdev->nesadapter);
-
-	if (nesdev->msi_enabled) {
-		pci_disable_msi(pcidev);
-	}
-
-	iounmap(nesdev->regs);
-	kfree(nesdev);
-
-	/* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
-	pci_release_regions(pcidev);
-	pci_disable_device(pcidev);
-	pci_set_drvdata(pcidev, NULL);
-}
-
-
-static ssize_t adapter_show(struct device_driver *ddp, char *buf)
-{
-	unsigned int  devfn = 0xffffffff;
-	unsigned char bus_number = 0xff;
-	unsigned int  i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			devfn = nesdev->pcidev->devfn;
-			bus_number = nesdev->pcidev->bus->number;
-			break;
-		}
-		i++;
-	}
-
-	return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
-}
-
-static ssize_t adapter_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-
-	ee_flsh_adapter = simple_strtoul(p, &p, 10);
-	return strnlen(buf, count);
-}
-
-static ssize_t eeprom_cmd_show(struct device_driver *ddp, char *buf)
-{
-	u32 eeprom_cmd = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
-			break;
-		}
-		i++;
-	}
-	return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
-}
-
-static ssize_t eeprom_cmd_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-	u32 val;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		val = simple_strtoul(p, &p, 16);
-		list_for_each_entry(nesdev, &nes_dev_list, list) {
-			if (i == ee_flsh_adapter) {
-				nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
-				break;
-			}
-			i++;
-		}
-	}
-	return strnlen(buf, count);
-}
-
-static ssize_t eeprom_data_show(struct device_driver *ddp, char *buf)
-{
-	u32 eeprom_data = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
-			break;
-		}
-		i++;
-	}
-
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
-}
-
-static ssize_t eeprom_data_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-	u32 val;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		val = simple_strtoul(p, &p, 16);
-		list_for_each_entry(nesdev, &nes_dev_list, list) {
-			if (i == ee_flsh_adapter) {
-				nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
-				break;
-			}
-			i++;
-		}
-	}
-	return strnlen(buf, count);
-}
-
-static ssize_t flash_cmd_show(struct device_driver *ddp, char *buf)
-{
-	u32 flash_cmd = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
-			break;
-		}
-		i++;
-	}
-
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
-}
-
-static ssize_t flash_cmd_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-	u32 val;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		val = simple_strtoul(p, &p, 16);
-		list_for_each_entry(nesdev, &nes_dev_list, list) {
-			if (i == ee_flsh_adapter) {
-				nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
-				break;
-			}
-			i++;
-		}
-	}
-	return strnlen(buf, count);
-}
-
-static ssize_t flash_data_show(struct device_driver *ddp, char *buf)
-{
-	u32 flash_data = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
-			break;
-		}
-		i++;
-	}
-
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
-}
-
-static ssize_t flash_data_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-	u32 val;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		val = simple_strtoul(p, &p, 16);
-		list_for_each_entry(nesdev, &nes_dev_list, list) {
-			if (i == ee_flsh_adapter) {
-				nes_write32(nesdev->regs + NES_FLASH_DATA, val);
-				break;
-			}
-			i++;
-		}
-	}
-	return strnlen(buf, count);
-}
-
-static ssize_t nonidx_addr_show(struct device_driver *ddp, char *buf)
-{
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
-}
-
-static ssize_t nonidx_addr_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
-		sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
-
-	return strnlen(buf, count);
-}
-
-static ssize_t nonidx_data_show(struct device_driver *ddp, char *buf)
-{
-	u32 nonidx_data = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
-			break;
-		}
-		i++;
-	}
-
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
-}
-
-static ssize_t nonidx_data_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-	u32 val;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		val = simple_strtoul(p, &p, 16);
-		list_for_each_entry(nesdev, &nes_dev_list, list) {
-			if (i == ee_flsh_adapter) {
-				nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
-				break;
-			}
-			i++;
-		}
-	}
-	return strnlen(buf, count);
-}
-
-static ssize_t idx_addr_show(struct device_driver *ddp, char *buf)
-{
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
-}
-
-static ssize_t idx_addr_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
-		sysfs_idx_addr = simple_strtoul(p, &p, 16);
-
-	return strnlen(buf, count);
-}
-
-static ssize_t idx_data_show(struct device_driver *ddp, char *buf)
-{
-	u32 idx_data = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
-			break;
-		}
-		i++;
-	}
-
-	return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
-}
-
-static ssize_t idx_data_store(struct device_driver *ddp,
-	const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-	u32 val;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		val = simple_strtoul(p, &p, 16);
-		list_for_each_entry(nesdev, &nes_dev_list, list) {
-			if (i == ee_flsh_adapter) {
-				nes_write_indexed(nesdev, sysfs_idx_addr, val);
-				break;
-			}
-			i++;
-		}
-	}
-	return strnlen(buf, count);
-}
-
-static ssize_t wqm_quanta_show(struct device_driver *ddp, char *buf)
-{
-	u32 wqm_quanta_value = 0xdead;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
-			break;
-		}
-		i++;
-	}
-
-	return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
-}
-
-static ssize_t wqm_quanta_store(struct device_driver *ddp, const char *buf,
-				size_t count)
-{
-	unsigned long wqm_quanta_value;
-	u32 wqm_config1;
-	u32 i = 0;
-	struct nes_device *nesdev;
-
-	if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
-		return -EINVAL;
-
-	list_for_each_entry(nesdev, &nes_dev_list, list) {
-		if (i == ee_flsh_adapter) {
-			nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
-			wqm_config1 = nes_read_indexed(nesdev,
-						NES_IDX_WQM_CONFIG1);
-			nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
-					((wqm_quanta_value << 1) |
-					(wqm_config1 & 0x00000001)));
-			break;
-		}
-		i++;
-	}
-	return strnlen(buf, count);
-}
-
-static DRIVER_ATTR_RW(adapter);
-static DRIVER_ATTR_RW(eeprom_cmd);
-static DRIVER_ATTR_RW(eeprom_data);
-static DRIVER_ATTR_RW(flash_cmd);
-static DRIVER_ATTR_RW(flash_data);
-static DRIVER_ATTR_RW(nonidx_addr);
-static DRIVER_ATTR_RW(nonidx_data);
-static DRIVER_ATTR_RW(idx_addr);
-static DRIVER_ATTR_RW(idx_data);
-static DRIVER_ATTR_RW(wqm_quanta);
-
-static struct attribute *nes_attrs[] = {
-	&driver_attr_adapter.attr,
-	&driver_attr_eeprom_cmd.attr,
-	&driver_attr_eeprom_data.attr,
-	&driver_attr_flash_cmd.attr,
-	&driver_attr_flash_data.attr,
-	&driver_attr_nonidx_addr.attr,
-	&driver_attr_nonidx_data.attr,
-	&driver_attr_idx_addr.attr,
-	&driver_attr_idx_data.attr,
-	&driver_attr_wqm_quanta.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(nes);
-
-static struct pci_driver nes_pci_driver = {
-	.name = DRV_NAME,
-	.id_table = nes_pci_table,
-	.probe = nes_probe,
-	.remove = nes_remove,
-	.groups = nes_groups,
-};
-
-
-/**
- * nes_init_module - module initialization entry point
- */
-static int __init nes_init_module(void)
-{
-	int retval;
-
-	retval = nes_cm_start();
-	if (retval) {
-		printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
-		return retval;
-	}
-	return pci_register_driver(&nes_pci_driver);
-}
-
-
-/**
- * nes_exit_module - module unload entry point
- */
-static void __exit nes_exit_module(void)
-{
-	nes_cm_stop();
-
-	pci_unregister_driver(&nes_pci_driver);
-}
-
-
-module_init(nes_init_module);
-module_exit(nes_exit_module);