![Linus Torvalds](/assets/img/avatar_default.png)
- Shared mlx5 updates with net stack (will drop out on merge if Dave's tree has already been merged) - Driver updates: cxgb4, hfi1, hns-roce, i40iw, mlx4, mlx5, qedr, rxe - Debug cleanups - New connection rejection helpers - SRP updates - Various misc fixes - New paravirt driver from vmware -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJYUbAPAAoJELgmozMOVy/dMXcP/iuG5MNzfN8Ny1JftyBQGWg3 cqoQ2OLj9CsXjwVB+5EqbcZHRZY852lKONaLoDKkIOx4YAXO2YuIKOp944vN7EQx 96wfqzT1F5jzAcy5mYZXgLaStGFDAwejKMqeHd0LfJj3OEtemGnVPWYzyqSQmSKo dzJraS1Z9GIRppzU5WaRpB9PtRBkqIqGJ5vZ0EKLGhed5hYY5r0iMJB0GfriMRDO lJ4UUVfpsAoLPnqDBFH6IMn2V2UeAw9IR5zNa1mrM1RBfvt/uYTxrw1w3p9WoaNs GRodhk4DCeAfeyqzVPNBLyXZ4Zq4FzGe3UWM4qysJ1RR4oFNw9Cuw0Fqk8mrfznr 7hv5TpGIckRZiKf8l6e+qLirF0qGtXJg29j2vPVQI9i5nSj95g1agA81PnLQlLLb flWyxeMj81my7lfMHN1xcV6pqPEKMCOysZmfcvVfJd2XxpjuVD7ekl/YXWp8o8kU YPdQMqPD626XsD8VpPdMszb9FPmx0JD0HEv+Y1rIFX8JegEI+c3H2X0dqC27T/Ou FEPWOy025EgHm0Fh/7eIzkG6tjZ4JHoCugJAcxNZGj2XW4eB6r5vY8UwJ8iQRv+n PVYHiy0UoIRePh0mrdOSSphGZMi/GO/DsqKwCtAMEK43WqZQju6wR7QSIGkh66mp 4uSHJqpf3YEYylxGMhk3 =QeGy -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "This is the complete update for the rdma stack for this release cycle. Most of it is typical driver and core updates, but there is the entirely new VMWare pvrdma driver. You may have noticed that there were changes in DaveM's pull request to the bnxt Ethernet driver to support a RoCE RDMA driver. The bnxt_re driver was tentatively set to be pulled in this release cycle, but it simply wasn't ready in time and was dropped (a few review comments still to address, and some multi-arch build issues like prefetch() not working across all arches). Summary: - shared mlx5 updates with net stack (will drop out on merge if Dave's tree has already been merged) - driver updates: cxgb4, hfi1, hns-roce, i40iw, mlx4, mlx5, qedr, rxe - debug cleanups - new connection rejection helpers - SRP updates - various misc fixes - new paravirt driver from vmware" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (210 commits) IB: Add vmw_pvrdma driver IB/mlx4: fix improper return value IB/ocrdma: fix bad initialization infiniband: nes: return value of skb_linearize should be handled MAINTAINERS: Update Intel RDMA RNIC driver maintainers MAINTAINERS: Remove Mitesh Ahuja from emulex maintainers IB/core: fix unmap_sg argument qede: fix general protection fault may occur on probe IB/mthca: Replace pci_pool_alloc by pci_pool_zalloc mlx5, calc_sq_size(): Make a debug message more informative mlx5: Remove a set-but-not-used variable mlx5: Use { } instead of { 0 } to init struct IB/srp: Make writing the add_target sysfs attr interruptible IB/srp: Make mapping failures easier to debug IB/srp: Make login failures easier to debug IB/srp: Introduce a local variable in srp_add_one() IB/srp: Fix CONFIG_DYNAMIC_DEBUG=n build IB/multicast: Check ib_find_pkey() return value IPoIB: Avoid reading an uninitialized member variable IB/mad: Fix an array index check ...
1244 lines
33 KiB
C
1244 lines
33 KiB
C
/*
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* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
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* Copyright (c) 2005 Open Grid Computing, 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/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/if_vlan.h>
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#include <linux/crc32.h>
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#include <linux/in.h>
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/if_arp.h>
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#include <linux/highmem.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/ib_smi.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_pack.h>
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#include <rdma/iw_cm.h>
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#include "nes.h"
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#include <net/netevent.h>
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#include <net/neighbour.h>
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#include <linux/route.h>
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#include <net/ip_fib.h>
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MODULE_AUTHOR("NetEffect");
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MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_VERSION(DRV_VERSION);
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int interrupt_mod_interval = 0;
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/* Interoperability */
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int mpa_version = 1;
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module_param(mpa_version, int, 0644);
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MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
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/* Interoperability */
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int disable_mpa_crc = 0;
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module_param(disable_mpa_crc, int, 0644);
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MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
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unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
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module_param(nes_drv_opt, int, 0644);
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MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
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unsigned int nes_debug_level = 0;
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module_param_named(debug_level, nes_debug_level, uint, 0644);
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MODULE_PARM_DESC(debug_level, "Enable debug output level");
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unsigned int wqm_quanta = 0x10000;
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module_param(wqm_quanta, int, 0644);
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MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
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static bool limit_maxrdreqsz;
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module_param(limit_maxrdreqsz, bool, 0644);
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MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
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LIST_HEAD(nes_adapter_list);
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static LIST_HEAD(nes_dev_list);
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atomic_t qps_destroyed;
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static unsigned int ee_flsh_adapter;
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static unsigned int sysfs_nonidx_addr;
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static unsigned int sysfs_idx_addr;
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static struct pci_device_id nes_pci_table[] = {
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{ PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
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{ PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
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{0}
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};
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MODULE_DEVICE_TABLE(pci, nes_pci_table);
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static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
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static int nes_net_event(struct notifier_block *, unsigned long, void *);
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static int nes_notifiers_registered;
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static struct notifier_block nes_inetaddr_notifier = {
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.notifier_call = nes_inetaddr_event
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};
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static struct notifier_block nes_net_notifier = {
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.notifier_call = nes_net_event
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};
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/**
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* nes_inetaddr_event
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*/
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static int nes_inetaddr_event(struct notifier_block *notifier,
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unsigned long event, void *ptr)
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{
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struct in_ifaddr *ifa = ptr;
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struct net_device *event_netdev = ifa->ifa_dev->dev;
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struct nes_device *nesdev;
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struct net_device *netdev;
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struct net_device *upper_dev;
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struct nes_vnic *nesvnic;
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unsigned int is_bonded;
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nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
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&ifa->ifa_address, &ifa->ifa_mask);
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list_for_each_entry(nesdev, &nes_dev_list, list) {
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nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
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nesdev, nesdev->netdev[0]->name);
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netdev = nesdev->netdev[0];
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nesvnic = netdev_priv(netdev);
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upper_dev = netdev_master_upper_dev_get(netdev);
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is_bonded = netif_is_bond_slave(netdev) &&
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(upper_dev == event_netdev);
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if ((netdev == event_netdev) || is_bonded) {
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if (nesvnic->rdma_enabled == 0) {
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nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
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" RDMA is not enabled.\n",
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netdev->name);
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return NOTIFY_OK;
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}
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/* we have ifa->ifa_address/mask here if we need it */
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switch (event) {
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case NETDEV_DOWN:
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nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
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nes_write_indexed(nesdev,
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NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
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nes_manage_arp_cache(netdev, netdev->dev_addr,
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ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
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nesvnic->local_ipaddr = 0;
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if (is_bonded)
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continue;
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else
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return NOTIFY_OK;
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break;
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case NETDEV_UP:
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nes_debug(NES_DBG_NETDEV, "event:UP\n");
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if (nesvnic->local_ipaddr != 0) {
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nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
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return NOTIFY_OK;
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}
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/* fall through */
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case NETDEV_CHANGEADDR:
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/* Add the address to the IP table */
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if (upper_dev)
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nesvnic->local_ipaddr =
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((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address;
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else
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nesvnic->local_ipaddr = ifa->ifa_address;
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nes_write_indexed(nesdev,
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NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
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ntohl(nesvnic->local_ipaddr));
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nes_manage_arp_cache(netdev, netdev->dev_addr,
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ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
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if (is_bonded)
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continue;
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else
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return NOTIFY_OK;
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break;
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default:
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break;
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}
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}
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}
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return NOTIFY_DONE;
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}
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/**
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* nes_net_event
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*/
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static int nes_net_event(struct notifier_block *notifier,
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unsigned long event, void *ptr)
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{
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struct neighbour *neigh = ptr;
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struct nes_device *nesdev;
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struct net_device *netdev;
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struct nes_vnic *nesvnic;
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switch (event) {
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case NETEVENT_NEIGH_UPDATE:
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list_for_each_entry(nesdev, &nes_dev_list, list) {
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/* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
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netdev = nesdev->netdev[0];
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nesvnic = netdev_priv(netdev);
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if (netdev == neigh->dev) {
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if (nesvnic->rdma_enabled == 0) {
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nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
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netdev->name);
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} else {
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if (neigh->nud_state & NUD_VALID) {
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nes_manage_arp_cache(neigh->dev, neigh->ha,
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ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
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} else {
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nes_manage_arp_cache(neigh->dev, neigh->ha,
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ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
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}
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}
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return NOTIFY_OK;
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}
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}
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break;
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default:
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nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
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break;
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}
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return NOTIFY_DONE;
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}
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/**
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* nes_add_ref
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*/
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void nes_add_ref(struct ib_qp *ibqp)
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{
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struct nes_qp *nesqp;
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nesqp = to_nesqp(ibqp);
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nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n",
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ibqp->qp_num, atomic_read(&nesqp->refcount));
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atomic_inc(&nesqp->refcount);
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}
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static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
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{
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unsigned long flags;
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struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
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struct nes_adapter *nesadapter = nesdev->nesadapter;
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atomic_inc(&qps_destroyed);
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/* Free the control structures */
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if (nesqp->pbl_vbase) {
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pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
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nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
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spin_lock_irqsave(&nesadapter->pbl_lock, flags);
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nesadapter->free_256pbl++;
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spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
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pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
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nesqp->pbl_vbase = NULL;
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} else {
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pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
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nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
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}
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nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
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nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
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kfree(nesqp->allocated_buffer);
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}
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/**
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* nes_rem_ref
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*/
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void nes_rem_ref(struct ib_qp *ibqp)
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{
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u64 u64temp;
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struct nes_qp *nesqp;
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struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
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struct nes_device *nesdev = nesvnic->nesdev;
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struct nes_hw_cqp_wqe *cqp_wqe;
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struct nes_cqp_request *cqp_request;
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u32 opcode;
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nesqp = to_nesqp(ibqp);
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if (atomic_read(&nesqp->refcount) == 0) {
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printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
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__func__, ibqp->qp_num, nesqp->last_aeq);
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BUG();
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}
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if (atomic_dec_and_test(&nesqp->refcount)) {
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if (nesqp->pau_mode)
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nes_destroy_pau_qp(nesdev, nesqp);
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/* Destroy the QP */
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cqp_request = nes_get_cqp_request(nesdev);
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if (cqp_request == NULL) {
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nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
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return;
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}
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cqp_request->waiting = 0;
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cqp_request->callback = 1;
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cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
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cqp_request->cqp_callback_pointer = nesqp;
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cqp_wqe = &cqp_request->cqp_wqe;
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nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
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opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
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if (nesqp->hte_added) {
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opcode |= NES_CQP_QP_DEL_HTE;
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nesqp->hte_added = 0;
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}
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set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
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set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
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u64temp = (u64)nesqp->nesqp_context_pbase;
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set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
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nes_post_cqp_request(nesdev, cqp_request);
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}
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}
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/**
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* nes_get_qp
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*/
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struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
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{
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struct nes_vnic *nesvnic = to_nesvnic(device);
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struct nes_device *nesdev = nesvnic->nesdev;
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struct nes_adapter *nesadapter = nesdev->nesadapter;
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if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
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return NULL;
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return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
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}
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/**
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* nes_print_macaddr
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*/
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static void nes_print_macaddr(struct net_device *netdev)
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{
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nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
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netdev->name, netdev->dev_addr, netdev->irq);
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}
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/**
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* nes_interrupt - handle interrupts
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*/
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static irqreturn_t nes_interrupt(int irq, void *dev_id)
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{
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struct nes_device *nesdev = (struct nes_device *)dev_id;
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int handled = 0;
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u32 int_mask;
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u32 int_req;
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u32 int_stat;
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u32 intf_int_stat;
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u32 timer_stat;
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if (nesdev->msi_enabled) {
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/* No need to read the interrupt pending register if msi is enabled */
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handled = 1;
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} else {
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if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
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/* Master interrupt enable provides synchronization for kicking off bottom half
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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;
|
|
|
|
assert(pcidev != NULL);
|
|
assert(ent != NULL);
|
|
|
|
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 struct pci_driver nes_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = nes_pci_table,
|
|
.probe = nes_probe,
|
|
.remove = nes_remove,
|
|
};
|
|
|
|
static ssize_t nes_show_adapter(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 nes_store_adapter(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 nes_show_ee_cmd(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 nes_store_ee_cmd(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 nes_show_ee_data(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 nes_store_ee_data(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 nes_show_flash_cmd(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 nes_store_flash_cmd(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 nes_show_flash_data(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 nes_store_flash_data(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 nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
|
|
}
|
|
|
|
static ssize_t nes_store_nonidx_addr(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 nes_show_nonidx_data(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 nes_store_nonidx_data(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 nes_show_idx_addr(struct device_driver *ddp, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
|
|
}
|
|
|
|
static ssize_t nes_store_idx_addr(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 nes_show_idx_data(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 nes_store_idx_data(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);
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_show_wqm_quanta
|
|
*/
|
|
static ssize_t nes_show_wqm_quanta(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);
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_store_wqm_quanta
|
|
*/
|
|
static ssize_t nes_store_wqm_quanta(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(adapter, S_IRUSR | S_IWUSR,
|
|
nes_show_adapter, nes_store_adapter);
|
|
static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
|
|
nes_show_ee_cmd, nes_store_ee_cmd);
|
|
static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
|
|
nes_show_ee_data, nes_store_ee_data);
|
|
static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
|
|
nes_show_flash_cmd, nes_store_flash_cmd);
|
|
static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
|
|
nes_show_flash_data, nes_store_flash_data);
|
|
static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
|
|
nes_show_nonidx_addr, nes_store_nonidx_addr);
|
|
static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
|
|
nes_show_nonidx_data, nes_store_nonidx_data);
|
|
static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
|
|
nes_show_idx_addr, nes_store_idx_addr);
|
|
static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
|
|
nes_show_idx_data, nes_store_idx_data);
|
|
static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
|
|
nes_show_wqm_quanta, nes_store_wqm_quanta);
|
|
|
|
static int nes_create_driver_sysfs(struct pci_driver *drv)
|
|
{
|
|
int error;
|
|
error = driver_create_file(&drv->driver, &driver_attr_adapter);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
|
|
error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
|
|
return error;
|
|
}
|
|
|
|
static void nes_remove_driver_sysfs(struct pci_driver *drv)
|
|
{
|
|
driver_remove_file(&drv->driver, &driver_attr_adapter);
|
|
driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
|
|
driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
|
|
driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
|
|
driver_remove_file(&drv->driver, &driver_attr_flash_data);
|
|
driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
|
|
driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
|
|
driver_remove_file(&drv->driver, &driver_attr_idx_addr);
|
|
driver_remove_file(&drv->driver, &driver_attr_idx_data);
|
|
driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
|
|
}
|
|
|
|
/**
|
|
* nes_init_module - module initialization entry point
|
|
*/
|
|
static int __init nes_init_module(void)
|
|
{
|
|
int retval;
|
|
int retval1;
|
|
|
|
retval = nes_cm_start();
|
|
if (retval) {
|
|
printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
|
|
return retval;
|
|
}
|
|
retval = pci_register_driver(&nes_pci_driver);
|
|
if (retval >= 0) {
|
|
retval1 = nes_create_driver_sysfs(&nes_pci_driver);
|
|
if (retval1 < 0)
|
|
printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_exit_module - module unload entry point
|
|
*/
|
|
static void __exit nes_exit_module(void)
|
|
{
|
|
nes_cm_stop();
|
|
nes_remove_driver_sysfs(&nes_pci_driver);
|
|
|
|
pci_unregister_driver(&nes_pci_driver);
|
|
}
|
|
|
|
|
|
module_init(nes_init_module);
|
|
module_exit(nes_exit_module);
|