| author | Florian Pose <fp@igh-essen.com> |
| Tue, 18 Oct 2016 10:20:47 +0200 | |
| branch | stable-1.5 |
| changeset 2662 | a1079c6242a5 |
| parent 2582 | 87e502828b3f |
| permissions | -rw-r--r-- |
| 1812 | 1 |
/****************************************************************************** |
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* |
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* $Id$ |
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* |
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* Copyright (C) 2007-2008 Florian Pose, Ingenieurgemeinschaft IgH |
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* |
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* This file is part of the IgH EtherCAT Master. |
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* |
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* The IgH EtherCAT Master is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License version 2, as |
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* published by the Free Software Foundation. |
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* |
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* The IgH EtherCAT Master is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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* Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with the IgH EtherCAT Master; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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* |
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* --- |
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* |
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* The license mentioned above concerns the source code only. Using the |
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* EtherCAT technology and brand is only permitted in compliance with the |
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* industrial property and similar rights of Beckhoff Automation GmbH. |
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* |
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* --- |
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* |
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* vim: noexpandtab |
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* |
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*****************************************************************************/ |
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/** |
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\file |
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EtherCAT driver for e100-compatible NICs. |
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*/ |
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/* Former documentation: */ |
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/******************************************************************************* |
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Intel PRO/100 Linux driver |
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Copyright(c) 1999 - 2006 Intel Corporation. |
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This program is free software; you can redistribute it and/or modify it |
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under the terms and conditions of the GNU General Public License, |
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version 2, as published by the Free Software Foundation. |
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This program is distributed in the hope it will be useful, but WITHOUT |
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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more details. |
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You should have received a copy of the GNU General Public License along with |
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this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
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The full GNU General Public License is included in this distribution in |
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the file called "COPYING". |
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Contact Information: |
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Linux NICS <linux.nics@intel.com> |
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e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
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*******************************************************************************/ |
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/* |
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* e100.c: Intel(R) PRO/100 ethernet driver |
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* |
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* (Re)written 2003 by scott.feldman@intel.com. Based loosely on |
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* original e100 driver, but better described as a munging of |
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* e100, e1000, eepro100, tg3, 8139cp, and other drivers. |
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* |
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* References: |
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* Intel 8255x 10/100 Mbps Ethernet Controller Family, |
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* Open Source Software Developers Manual, |
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* http://sourceforge.net/projects/e1000 |
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* |
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* |
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* Theory of Operation |
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* |
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* I. General |
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* |
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* The driver supports Intel(R) 10/100 Mbps PCI Fast Ethernet |
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* controller family, which includes the 82557, 82558, 82559, 82550, |
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* 82551, and 82562 devices. 82558 and greater controllers |
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* integrate the Intel 82555 PHY. The controllers are used in |
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* server and client network interface cards, as well as in |
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* LAN-On-Motherboard (LOM), CardBus, MiniPCI, and ICHx |
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* configurations. 8255x supports a 32-bit linear addressing |
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* mode and operates at 33Mhz PCI clock rate. |
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* |
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* II. Driver Operation |
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* |
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* Memory-mapped mode is used exclusively to access the device's |
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* shared-memory structure, the Control/Status Registers (CSR). All |
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* setup, configuration, and control of the device, including queuing |
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* of Tx, Rx, and configuration commands is through the CSR. |
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* cmd_lock serializes accesses to the CSR command register. cb_lock |
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* protects the shared Command Block List (CBL). |
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* |
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* 8255x is highly MII-compliant and all access to the PHY go |
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* through the Management Data Interface (MDI). Consequently, the |
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* driver leverages the mii.c library shared with other MII-compliant |
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* devices. |
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* |
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* Big- and Little-Endian byte order as well as 32- and 64-bit |
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* archs are supported. Weak-ordered memory and non-cache-coherent |
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* archs are supported. |
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* |
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* III. Transmit |
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* |
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* A Tx skb is mapped and hangs off of a TCB. TCBs are linked |
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* together in a fixed-size ring (CBL) thus forming the flexible mode |
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* memory structure. A TCB marked with the suspend-bit indicates |
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* the end of the ring. The last TCB processed suspends the |
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* controller, and the controller can be restarted by issue a CU |
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* resume command to continue from the suspend point, or a CU start |
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* command to start at a given position in the ring. |
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* |
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* Non-Tx commands (config, multicast setup, etc) are linked |
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* into the CBL ring along with Tx commands. The common structure |
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* used for both Tx and non-Tx commands is the Command Block (CB). |
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* |
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* cb_to_use is the next CB to use for queuing a command; cb_to_clean |
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* is the next CB to check for completion; cb_to_send is the first |
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* CB to start on in case of a previous failure to resume. CB clean |
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* up happens in interrupt context in response to a CU interrupt. |
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* cbs_avail keeps track of number of free CB resources available. |
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* |
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* Hardware padding of short packets to minimum packet size is |
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* enabled. 82557 pads with 7Eh, while the later controllers pad |
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* with 00h. |
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* |
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* IV. Receive |
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* |
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* The Receive Frame Area (RFA) comprises a ring of Receive Frame |
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* Descriptors (RFD) + data buffer, thus forming the simplified mode |
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* memory structure. Rx skbs are allocated to contain both the RFD |
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* and the data buffer, but the RFD is pulled off before the skb is |
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* indicated. The data buffer is aligned such that encapsulated |
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* protocol headers are u32-aligned. Since the RFD is part of the |
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* mapped shared memory, and completion status is contained within |
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* the RFD, the RFD must be dma_sync'ed to maintain a consistent |
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* view from software and hardware. |
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* |
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* In order to keep updates to the RFD link field from colliding with |
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* hardware writes to mark packets complete, we use the feature that |
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* hardware will not write to a size 0 descriptor and mark the previous |
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* packet as end-of-list (EL). After updating the link, we remove EL |
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* and only then restore the size such that hardware may use the |
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* previous-to-end RFD. |
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* |
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* Under typical operation, the receive unit (RU) is start once, |
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* and the controller happily fills RFDs as frames arrive. If |
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* replacement RFDs cannot be allocated, or the RU goes non-active, |
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* the RU must be restarted. Frame arrival generates an interrupt, |
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* and Rx indication and re-allocation happen in the same context, |
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* therefore no locking is required. A software-generated interrupt |
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* is generated from the watchdog to recover from a failed allocation |
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* scenario where all Rx resources have been indicated and none re- |
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* placed. |
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* |
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* V. Miscellaneous |
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* |
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* VLAN offloading of tagging, stripping and filtering is not |
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* supported, but driver will accommodate the extra 4-byte VLAN tag |
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* for processing by upper layers. Tx/Rx Checksum offloading is not |
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* supported. Tx Scatter/Gather is not supported. Jumbo Frames is |
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* not supported (hardware limitation). |
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* |
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* MagicPacket(tm) WoL support is enabled/disabled via ethtool. |
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* |
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* Thanks to JC (jchapman@katalix.com) for helping with |
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* testing/troubleshooting the development driver. |
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* |
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* TODO: |
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* o several entry points race with dev->close |
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* o check for tx-no-resources/stop Q races with tx clean/wake Q |
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* |
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* FIXES: |
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* 2005/12/02 - Michael O'Donnell <Michael.ODonnell at stratus dot com> |
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* - Stratus87247: protect MDI control register manipulations |
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* 2009/06/01 - Andreas Mohr <andi at lisas dot de> |
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* - add clean lowlevel I/O emulation for cards with MII-lacking PHYs |
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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/kernel.h> |
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#include <linux/types.h> |
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#include <linux/slab.h> |
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/netdevice.h> |
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#include <linux/etherdevice.h> |
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#include <linux/mii.h> |
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#include <linux/if_vlan.h> |
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#include <linux/skbuff.h> |
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#include <linux/ethtool.h> |
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#include <linux/string.h> |
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#include <linux/firmware.h> |
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// EtherCAT includes |
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#include "../globals.h" |
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#include "ecdev.h" |
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#define DRV_NAME "ec_e100" |
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#include <asm/unaligned.h> |
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#define DRV_EXT "-NAPI" |
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#define DRV_VERSION "3.5.24-k2"DRV_EXT |
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#define DRV_DESCRIPTION "Intel(R) PRO/100 Network Driver" |
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#define DRV_COPYRIGHT "Copyright(c) 1999-2006 Intel Corporation" |
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#define PFX DRV_NAME ": " |
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#define E100_WATCHDOG_PERIOD (2 * HZ) |
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#define E100_NAPI_WEIGHT 16 |
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#define FIRMWARE_D101M "e100/d101m_ucode.bin" |
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#define FIRMWARE_D101S "e100/d101s_ucode.bin" |
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#define FIRMWARE_D102E "e100/d102e_ucode.bin" |
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MODULE_DESCRIPTION(DRV_DESCRIPTION); |
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MODULE_AUTHOR(DRV_COPYRIGHT); |
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION); |
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MODULE_FIRMWARE(FIRMWARE_D101M); |
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MODULE_FIRMWARE(FIRMWARE_D101S); |
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MODULE_FIRMWARE(FIRMWARE_D102E); |
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MODULE_DESCRIPTION(DRV_DESCRIPTION); |
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MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION ", master " EC_MASTER_VERSION); |
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void e100_ec_poll(struct net_device *); |
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static int debug = 3; |
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static int eeprom_bad_csum_allow = 0; |
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static int use_io = 0; |
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module_param(debug, int, 0); |
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module_param(eeprom_bad_csum_allow, int, 0); |
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module_param(use_io, int, 0); |
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MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); |
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MODULE_PARM_DESC(eeprom_bad_csum_allow, "Allow bad eeprom checksums"); |
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MODULE_PARM_DESC(use_io, "Force use of i/o access mode"); |
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#define DPRINTK(nlevel, klevel, fmt, args...) \ |
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(void)((NETIF_MSG_##nlevel & nic->msg_enable) && \ |
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printk(KERN_##klevel PFX "%s: %s: " fmt, nic->netdev->name, \ |
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__func__ , ## args)) |
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#define INTEL_8255X_ETHERNET_DEVICE(device_id, ich) {\
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PCI_VENDOR_ID_INTEL, device_id, PCI_ANY_ID, PCI_ANY_ID, \ |
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PCI_CLASS_NETWORK_ETHERNET << 8, 0xFFFF00, ich } |
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static struct pci_device_id e100_id_table[] = {
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INTEL_8255X_ETHERNET_DEVICE(0x1029, 0), |
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INTEL_8255X_ETHERNET_DEVICE(0x1030, 0), |
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INTEL_8255X_ETHERNET_DEVICE(0x1031, 3), |
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INTEL_8255X_ETHERNET_DEVICE(0x1032, 3), |
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INTEL_8255X_ETHERNET_DEVICE(0x1033, 3), |
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INTEL_8255X_ETHERNET_DEVICE(0x1034, 3), |
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INTEL_8255X_ETHERNET_DEVICE(0x1038, 3), |
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INTEL_8255X_ETHERNET_DEVICE(0x1039, 4), |
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INTEL_8255X_ETHERNET_DEVICE(0x103A, 4), |
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INTEL_8255X_ETHERNET_DEVICE(0x103B, 4), |
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INTEL_8255X_ETHERNET_DEVICE(0x103C, 4), |
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INTEL_8255X_ETHERNET_DEVICE(0x103D, 4), |
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INTEL_8255X_ETHERNET_DEVICE(0x103E, 4), |
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INTEL_8255X_ETHERNET_DEVICE(0x1050, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1051, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1052, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1053, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1054, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1055, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1056, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1057, 5), |
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INTEL_8255X_ETHERNET_DEVICE(0x1059, 0), |
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INTEL_8255X_ETHERNET_DEVICE(0x1064, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x1065, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x1066, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x1067, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x1068, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x1069, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x106A, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x106B, 6), |
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INTEL_8255X_ETHERNET_DEVICE(0x1091, 7), |
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INTEL_8255X_ETHERNET_DEVICE(0x1092, 7), |
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INTEL_8255X_ETHERNET_DEVICE(0x1093, 7), |
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INTEL_8255X_ETHERNET_DEVICE(0x1094, 7), |
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INTEL_8255X_ETHERNET_DEVICE(0x1095, 7), |
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INTEL_8255X_ETHERNET_DEVICE(0x10fe, 7), |
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INTEL_8255X_ETHERNET_DEVICE(0x1209, 0), |
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INTEL_8255X_ETHERNET_DEVICE(0x1229, 0), |
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INTEL_8255X_ETHERNET_DEVICE(0x2449, 2), |
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INTEL_8255X_ETHERNET_DEVICE(0x2459, 2), |
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INTEL_8255X_ETHERNET_DEVICE(0x245D, 2), |
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INTEL_8255X_ETHERNET_DEVICE(0x27DC, 7), |
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{ 0, }
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}; |
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||
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// prevent from being loaded automatically |
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//MODULE_DEVICE_TABLE(pci, e100_id_table); |
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enum mac {
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mac_82557_D100_A = 0, |
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mac_82557_D100_B = 1, |
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mac_82557_D100_C = 2, |
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mac_82558_D101_A4 = 4, |
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mac_82558_D101_B0 = 5, |
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mac_82559_D101M = 8, |
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mac_82559_D101S = 9, |
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mac_82550_D102 = 12, |
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mac_82550_D102_C = 13, |
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mac_82551_E = 14, |
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mac_82551_F = 15, |
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mac_82551_10 = 16, |
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mac_unknown = 0xFF, |
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}; |
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enum phy {
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phy_100a = 0x000003E0, |
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phy_100c = 0x035002A8, |
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phy_82555_tx = 0x015002A8, |
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phy_nsc_tx = 0x5C002000, |
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phy_82562_et = 0x033002A8, |
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phy_82562_em = 0x032002A8, |
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phy_82562_ek = 0x031002A8, |
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phy_82562_eh = 0x017002A8, |
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phy_82552_v = 0xd061004d, |
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phy_unknown = 0xFFFFFFFF, |
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}; |
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/* CSR (Control/Status Registers) */ |
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struct csr {
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struct {
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u8 status; |
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u8 stat_ack; |
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u8 cmd_lo; |
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u8 cmd_hi; |
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u32 gen_ptr; |
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} scb; |
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u32 port; |
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u16 flash_ctrl; |
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u8 eeprom_ctrl_lo; |
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u8 eeprom_ctrl_hi; |
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u32 mdi_ctrl; |
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u32 rx_dma_count; |
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}; |
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||
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enum scb_status {
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rus_no_res = 0x08, |
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rus_ready = 0x10, |
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rus_mask = 0x3C, |
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}; |
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361 |
||
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enum ru_state {
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RU_SUSPENDED = 0, |
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RU_RUNNING = 1, |
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RU_UNINITIALIZED = -1, |
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}; |
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||
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enum scb_stat_ack {
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stat_ack_not_ours = 0x00, |
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stat_ack_sw_gen = 0x04, |
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stat_ack_rnr = 0x10, |
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stat_ack_cu_idle = 0x20, |
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stat_ack_frame_rx = 0x40, |
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stat_ack_cu_cmd_done = 0x80, |
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stat_ack_not_present = 0xFF, |
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stat_ack_rx = (stat_ack_sw_gen | stat_ack_rnr | stat_ack_frame_rx), |
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stat_ack_tx = (stat_ack_cu_idle | stat_ack_cu_cmd_done), |
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}; |
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379 |
||
380 |
enum scb_cmd_hi {
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irq_mask_none = 0x00, |
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irq_mask_all = 0x01, |
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irq_sw_gen = 0x02, |
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}; |
|
385 |
||
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enum scb_cmd_lo {
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cuc_nop = 0x00, |
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ruc_start = 0x01, |
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ruc_load_base = 0x06, |
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cuc_start = 0x10, |
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cuc_resume = 0x20, |
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cuc_dump_addr = 0x40, |
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cuc_dump_stats = 0x50, |
|
394 |
cuc_load_base = 0x60, |
|
395 |
cuc_dump_reset = 0x70, |
|
396 |
}; |
|
397 |
||
398 |
enum cuc_dump {
|
|
399 |
cuc_dump_complete = 0x0000A005, |
|
400 |
cuc_dump_reset_complete = 0x0000A007, |
|
401 |
}; |
|
402 |
||
403 |
enum port {
|
|
404 |
software_reset = 0x0000, |
|
405 |
selftest = 0x0001, |
|
406 |
selective_reset = 0x0002, |
|
407 |
}; |
|
408 |
||
409 |
enum eeprom_ctrl_lo {
|
|
410 |
eesk = 0x01, |
|
411 |
eecs = 0x02, |
|
412 |
eedi = 0x04, |
|
413 |
eedo = 0x08, |
|
414 |
}; |
|
415 |
||
416 |
enum mdi_ctrl {
|
|
417 |
mdi_write = 0x04000000, |
|
418 |
mdi_read = 0x08000000, |
|
419 |
mdi_ready = 0x10000000, |
|
420 |
}; |
|
421 |
||
422 |
enum eeprom_op {
|
|
423 |
op_write = 0x05, |
|
424 |
op_read = 0x06, |
|
425 |
op_ewds = 0x10, |
|
426 |
op_ewen = 0x13, |
|
427 |
}; |
|
428 |
||
429 |
enum eeprom_offsets {
|
|
430 |
eeprom_cnfg_mdix = 0x03, |
|
431 |
eeprom_phy_iface = 0x06, |
|
432 |
eeprom_id = 0x0A, |
|
433 |
eeprom_config_asf = 0x0D, |
|
434 |
eeprom_smbus_addr = 0x90, |
|
435 |
}; |
|
436 |
||
437 |
enum eeprom_cnfg_mdix {
|
|
438 |
eeprom_mdix_enabled = 0x0080, |
|
439 |
}; |
|
440 |
||
441 |
enum eeprom_phy_iface {
|
|
442 |
NoSuchPhy = 0, |
|
443 |
I82553AB, |
|
444 |
I82553C, |
|
445 |
I82503, |
|
446 |
DP83840, |
|
447 |
S80C240, |
|
448 |
S80C24, |
|
449 |
I82555, |
|
450 |
DP83840A = 10, |
|
451 |
}; |
|
452 |
||
453 |
enum eeprom_id {
|
|
454 |
eeprom_id_wol = 0x0020, |
|
455 |
}; |
|
456 |
||
457 |
enum eeprom_config_asf {
|
|
458 |
eeprom_asf = 0x8000, |
|
459 |
eeprom_gcl = 0x4000, |
|
460 |
}; |
|
461 |
||
462 |
enum cb_status {
|
|
463 |
cb_complete = 0x8000, |
|
464 |
cb_ok = 0x2000, |
|
465 |
}; |
|
466 |
||
467 |
enum cb_command {
|
|
468 |
cb_nop = 0x0000, |
|
469 |
cb_iaaddr = 0x0001, |
|
470 |
cb_config = 0x0002, |
|
471 |
cb_multi = 0x0003, |
|
472 |
cb_tx = 0x0004, |
|
473 |
cb_ucode = 0x0005, |
|
474 |
cb_dump = 0x0006, |
|
475 |
cb_tx_sf = 0x0008, |
|
476 |
cb_cid = 0x1f00, |
|
477 |
cb_i = 0x2000, |
|
478 |
cb_s = 0x4000, |
|
479 |
cb_el = 0x8000, |
|
480 |
}; |
|
481 |
||
482 |
struct rfd {
|
|
483 |
__le16 status; |
|
484 |
__le16 command; |
|
485 |
__le32 link; |
|
486 |
__le32 rbd; |
|
487 |
__le16 actual_size; |
|
488 |
__le16 size; |
|
489 |
}; |
|
490 |
||
491 |
struct rx {
|
|
492 |
struct rx *next, *prev; |
|
493 |
struct sk_buff *skb; |
|
494 |
dma_addr_t dma_addr; |
|
495 |
}; |
|
496 |
||
497 |
#if defined(__BIG_ENDIAN_BITFIELD) |
|
498 |
#define X(a,b) b,a |
|
499 |
#else |
|
500 |
#define X(a,b) a,b |
|
501 |
#endif |
|
502 |
struct config {
|
|
503 |
/*0*/ u8 X(byte_count:6, pad0:2); |
|
504 |
/*1*/ u8 X(X(rx_fifo_limit:4, tx_fifo_limit:3), pad1:1); |
|
505 |
/*2*/ u8 adaptive_ifs; |
|
506 |
/*3*/ u8 X(X(X(X(mwi_enable:1, type_enable:1), read_align_enable:1), |
|
507 |
term_write_cache_line:1), pad3:4); |
|
508 |
/*4*/ u8 X(rx_dma_max_count:7, pad4:1); |
|
509 |
/*5*/ u8 X(tx_dma_max_count:7, dma_max_count_enable:1); |
|
510 |
/*6*/ u8 X(X(X(X(X(X(X(late_scb_update:1, direct_rx_dma:1), |
|
511 |
tno_intr:1), cna_intr:1), standard_tcb:1), standard_stat_counter:1), |
|
512 |
rx_discard_overruns:1), rx_save_bad_frames:1); |
|
513 |
/*7*/ u8 X(X(X(X(X(rx_discard_short_frames:1, tx_underrun_retry:2), |
|
514 |
pad7:2), rx_extended_rfd:1), tx_two_frames_in_fifo:1), |
|
515 |
tx_dynamic_tbd:1); |
|
516 |
/*8*/ u8 X(X(mii_mode:1, pad8:6), csma_disabled:1); |
|
517 |
/*9*/ u8 X(X(X(X(X(rx_tcpudp_checksum:1, pad9:3), vlan_arp_tco:1), |
|
518 |
link_status_wake:1), arp_wake:1), mcmatch_wake:1); |
|
519 |
/*10*/ u8 X(X(X(pad10:3, no_source_addr_insertion:1), preamble_length:2), |
|
520 |
loopback:2); |
|
521 |
/*11*/ u8 X(linear_priority:3, pad11:5); |
|
522 |
/*12*/ u8 X(X(linear_priority_mode:1, pad12:3), ifs:4); |
|
523 |
/*13*/ u8 ip_addr_lo; |
|
524 |
/*14*/ u8 ip_addr_hi; |
|
525 |
/*15*/ u8 X(X(X(X(X(X(X(promiscuous_mode:1, broadcast_disabled:1), |
|
526 |
wait_after_win:1), pad15_1:1), ignore_ul_bit:1), crc_16_bit:1), |
|
527 |
pad15_2:1), crs_or_cdt:1); |
|
528 |
/*16*/ u8 fc_delay_lo; |
|
529 |
/*17*/ u8 fc_delay_hi; |
|
530 |
/*18*/ u8 X(X(X(X(X(rx_stripping:1, tx_padding:1), rx_crc_transfer:1), |
|
531 |
rx_long_ok:1), fc_priority_threshold:3), pad18:1); |
|
532 |
/*19*/ u8 X(X(X(X(X(X(X(addr_wake:1, magic_packet_disable:1), |
|
533 |
fc_disable:1), fc_restop:1), fc_restart:1), fc_reject:1), |
|
534 |
full_duplex_force:1), full_duplex_pin:1); |
|
535 |
/*20*/ u8 X(X(X(pad20_1:5, fc_priority_location:1), multi_ia:1), pad20_2:1); |
|
536 |
/*21*/ u8 X(X(pad21_1:3, multicast_all:1), pad21_2:4); |
|
537 |
/*22*/ u8 X(X(rx_d102_mode:1, rx_vlan_drop:1), pad22:6); |
|
538 |
u8 pad_d102[9]; |
|
539 |
}; |
|
540 |
||
541 |
#define E100_MAX_MULTICAST_ADDRS 64 |
|
542 |
struct multi {
|
|
543 |
__le16 count; |
|
544 |
u8 addr[E100_MAX_MULTICAST_ADDRS * ETH_ALEN + 2/*pad*/]; |
|
545 |
}; |
|
546 |
||
547 |
/* Important: keep total struct u32-aligned */ |
|
548 |
#define UCODE_SIZE 134 |
|
549 |
struct cb {
|
|
550 |
__le16 status; |
|
551 |
__le16 command; |
|
552 |
__le32 link; |
|
553 |
union {
|
|
554 |
u8 iaaddr[ETH_ALEN]; |
|
555 |
__le32 ucode[UCODE_SIZE]; |
|
556 |
struct config config; |
|
557 |
struct multi multi; |
|
558 |
struct {
|
|
559 |
u32 tbd_array; |
|
560 |
u16 tcb_byte_count; |
|
561 |
u8 threshold; |
|
562 |
u8 tbd_count; |
|
563 |
struct {
|
|
564 |
__le32 buf_addr; |
|
565 |
__le16 size; |
|
566 |
u16 eol; |
|
567 |
} tbd; |
|
568 |
} tcb; |
|
569 |
__le32 dump_buffer_addr; |
|
570 |
} u; |
|
571 |
struct cb *next, *prev; |
|
572 |
dma_addr_t dma_addr; |
|
573 |
struct sk_buff *skb; |
|
574 |
}; |
|
575 |
||
576 |
enum loopback {
|
|
577 |
lb_none = 0, lb_mac = 1, lb_phy = 3, |
|
578 |
}; |
|
579 |
||
580 |
struct stats {
|
|
581 |
__le32 tx_good_frames, tx_max_collisions, tx_late_collisions, |
|
582 |
tx_underruns, tx_lost_crs, tx_deferred, tx_single_collisions, |
|
583 |
tx_multiple_collisions, tx_total_collisions; |
|
584 |
__le32 rx_good_frames, rx_crc_errors, rx_alignment_errors, |
|
585 |
rx_resource_errors, rx_overrun_errors, rx_cdt_errors, |
|
586 |
rx_short_frame_errors; |
|
587 |
__le32 fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported; |
|
588 |
__le16 xmt_tco_frames, rcv_tco_frames; |
|
589 |
__le32 complete; |
|
590 |
}; |
|
591 |
||
592 |
struct mem {
|
|
593 |
struct {
|
|
594 |
u32 signature; |
|
595 |
u32 result; |
|
596 |
} selftest; |
|
597 |
struct stats stats; |
|
598 |
u8 dump_buf[596]; |
|
599 |
}; |
|
600 |
||
601 |
struct param_range {
|
|
602 |
u32 min; |
|
603 |
u32 max; |
|
604 |
u32 count; |
|
605 |
}; |
|
606 |
||
607 |
struct params {
|
|
608 |
struct param_range rfds; |
|
609 |
struct param_range cbs; |
|
610 |
}; |
|
611 |
||
612 |
struct nic {
|
|
613 |
/* Begin: frequently used values: keep adjacent for cache effect */ |
|
614 |
u32 msg_enable ____cacheline_aligned; |
|
615 |
struct net_device *netdev; |
|
616 |
struct pci_dev *pdev; |
|
617 |
u16 (*mdio_ctrl)(struct nic *nic, u32 addr, u32 dir, u32 reg, u16 data); |
|
618 |
||
619 |
struct rx *rxs ____cacheline_aligned; |
|
620 |
struct rx *rx_to_use; |
|
621 |
struct rx *rx_to_clean; |
|
622 |
struct rfd blank_rfd; |
|
623 |
enum ru_state ru_running; |
|
624 |
||
625 |
spinlock_t cb_lock ____cacheline_aligned; |
|
626 |
spinlock_t cmd_lock; |
|
627 |
struct csr __iomem *csr; |
|
628 |
enum scb_cmd_lo cuc_cmd; |
|
629 |
unsigned int cbs_avail; |
|
630 |
struct napi_struct napi; |
|
631 |
struct cb *cbs; |
|
632 |
struct cb *cb_to_use; |
|
633 |
struct cb *cb_to_send; |
|
634 |
struct cb *cb_to_clean; |
|
635 |
__le16 tx_command; |
|
636 |
/* End: frequently used values: keep adjacent for cache effect */ |
|
637 |
||
638 |
enum {
|
|
639 |
ich = (1 << 0), |
|
640 |
promiscuous = (1 << 1), |
|
641 |
multicast_all = (1 << 2), |
|
642 |
wol_magic = (1 << 3), |
|
643 |
ich_10h_workaround = (1 << 4), |
|
644 |
} flags ____cacheline_aligned; |
|
645 |
||
646 |
enum mac mac; |
|
647 |
enum phy phy; |
|
648 |
struct params params; |
|
649 |
struct timer_list watchdog; |
|
650 |
struct timer_list blink_timer; |
|
651 |
struct mii_if_info mii; |
|
652 |
struct work_struct tx_timeout_task; |
|
653 |
enum loopback loopback; |
|
654 |
||
655 |
struct mem *mem; |
|
656 |
dma_addr_t dma_addr; |
|
657 |
||
658 |
dma_addr_t cbs_dma_addr; |
|
659 |
u8 adaptive_ifs; |
|
660 |
u8 tx_threshold; |
|
661 |
u32 tx_frames; |
|
662 |
u32 tx_collisions; |
|
663 |
||
664 |
u32 tx_deferred; |
|
665 |
u32 tx_single_collisions; |
|
666 |
u32 tx_multiple_collisions; |
|
667 |
u32 tx_fc_pause; |
|
668 |
u32 tx_tco_frames; |
|
669 |
||
670 |
u32 rx_fc_pause; |
|
671 |
u32 rx_fc_unsupported; |
|
672 |
u32 rx_tco_frames; |
|
673 |
u32 rx_over_length_errors; |
|
674 |
||
675 |
u16 leds; |
|
676 |
u16 eeprom_wc; |
|
677 |
||
678 |
__le16 eeprom[256]; |
|
679 |
spinlock_t mdio_lock; |
|
680 |
||
681 |
ec_device_t *ecdev; |
|
682 |
unsigned long ec_watchdog_jiffies; |
|
683 |
}; |
|
684 |
||
685 |
static inline void e100_write_flush(struct nic *nic) |
|
686 |
{
|
|
687 |
/* Flush previous PCI writes through intermediate bridges |
|
688 |
* by doing a benign read */ |
|
689 |
(void)ioread8(&nic->csr->scb.status); |
|
690 |
} |
|
691 |
||
692 |
static void e100_enable_irq(struct nic *nic) |
|
693 |
{
|
|
694 |
unsigned long flags; |
|
695 |
||
696 |
if (nic->ecdev) |
|
697 |
return; |
|
698 |
||
699 |
spin_lock_irqsave(&nic->cmd_lock, flags); |
|
700 |
iowrite8(irq_mask_none, &nic->csr->scb.cmd_hi); |
|
701 |
e100_write_flush(nic); |
|
702 |
spin_unlock_irqrestore(&nic->cmd_lock, flags); |
|
703 |
} |
|
704 |
||
705 |
static void e100_disable_irq(struct nic *nic) |
|
706 |
{
|
|
| 1928 | 707 |
unsigned long flags = 0; |
| 1812 | 708 |
|
709 |
if (!nic->ecdev) |
|
710 |
spin_lock_irqsave(&nic->cmd_lock, flags); |
|
711 |
iowrite8(irq_mask_all, &nic->csr->scb.cmd_hi); |
|
712 |
e100_write_flush(nic); |
|
713 |
if (!nic->ecdev) |
|
714 |
spin_unlock_irqrestore(&nic->cmd_lock, flags); |
|
715 |
} |
|
716 |
||
717 |
static void e100_hw_reset(struct nic *nic) |
|
718 |
{
|
|
719 |
/* Put CU and RU into idle with a selective reset to get |
|
720 |
* device off of PCI bus */ |
|
721 |
iowrite32(selective_reset, &nic->csr->port); |
|
722 |
e100_write_flush(nic); udelay(20); |
|
723 |
||
724 |
/* Now fully reset device */ |
|
725 |
iowrite32(software_reset, &nic->csr->port); |
|
726 |
e100_write_flush(nic); udelay(20); |
|
727 |
||
728 |
/* Mask off our interrupt line - it's unmasked after reset */ |
|
729 |
e100_disable_irq(nic); |
|
730 |
} |
|
731 |
||
732 |
static int e100_self_test(struct nic *nic) |
|
733 |
{
|
|
734 |
u32 dma_addr = nic->dma_addr + offsetof(struct mem, selftest); |
|
735 |
||
736 |
/* Passing the self-test is a pretty good indication |
|
737 |
* that the device can DMA to/from host memory */ |
|
738 |
||
739 |
nic->mem->selftest.signature = 0; |
|
740 |
nic->mem->selftest.result = 0xFFFFFFFF; |
|
741 |
||
742 |
iowrite32(selftest | dma_addr, &nic->csr->port); |
|
743 |
e100_write_flush(nic); |
|
744 |
/* Wait 10 msec for self-test to complete */ |
|
745 |
msleep(10); |
|
746 |
||
747 |
/* Interrupts are enabled after self-test */ |
|
748 |
e100_disable_irq(nic); |
|
749 |
||
750 |
/* Check results of self-test */ |
|
751 |
if (nic->mem->selftest.result != 0) {
|
|
752 |
DPRINTK(HW, ERR, "Self-test failed: result=0x%08X\n", |
|
753 |
nic->mem->selftest.result); |
|
754 |
return -ETIMEDOUT; |
|
755 |
} |
|
756 |
if (nic->mem->selftest.signature == 0) {
|
|
757 |
DPRINTK(HW, ERR, "Self-test failed: timed out\n"); |
|
758 |
return -ETIMEDOUT; |
|
759 |
} |
|
760 |
||
761 |
return 0; |
|
762 |
} |
|
763 |
||
764 |
static void e100_eeprom_write(struct nic *nic, u16 addr_len, u16 addr, __le16 data) |
|
765 |
{
|
|
766 |
u32 cmd_addr_data[3]; |
|
767 |
u8 ctrl; |
|
768 |
int i, j; |
|
769 |
||
770 |
/* Three cmds: write/erase enable, write data, write/erase disable */ |
|
771 |
cmd_addr_data[0] = op_ewen << (addr_len - 2); |
|
772 |
cmd_addr_data[1] = (((op_write << addr_len) | addr) << 16) | |
|
773 |
le16_to_cpu(data); |
|
774 |
cmd_addr_data[2] = op_ewds << (addr_len - 2); |
|
775 |
||
776 |
/* Bit-bang cmds to write word to eeprom */ |
|
777 |
for (j = 0; j < 3; j++) {
|
|
778 |
||
779 |
/* Chip select */ |
|
780 |
iowrite8(eecs | eesk, &nic->csr->eeprom_ctrl_lo); |
|
781 |
e100_write_flush(nic); udelay(4); |
|
782 |
||
783 |
for (i = 31; i >= 0; i--) {
|
|
784 |
ctrl = (cmd_addr_data[j] & (1 << i)) ? |
|
785 |
eecs | eedi : eecs; |
|
786 |
iowrite8(ctrl, &nic->csr->eeprom_ctrl_lo); |
|
787 |
e100_write_flush(nic); udelay(4); |
|
788 |
||
789 |
iowrite8(ctrl | eesk, &nic->csr->eeprom_ctrl_lo); |
|
790 |
e100_write_flush(nic); udelay(4); |
|
791 |
} |
|
792 |
/* Wait 10 msec for cmd to complete */ |
|
793 |
msleep(10); |
|
794 |
||
795 |
/* Chip deselect */ |
|
796 |
iowrite8(0, &nic->csr->eeprom_ctrl_lo); |
|
797 |
e100_write_flush(nic); udelay(4); |
|
798 |
} |
|
799 |
}; |
|
800 |
||
801 |
/* General technique stolen from the eepro100 driver - very clever */ |
|
802 |
static __le16 e100_eeprom_read(struct nic *nic, u16 *addr_len, u16 addr) |
|
803 |
{
|
|
804 |
u32 cmd_addr_data; |
|
805 |
u16 data = 0; |
|
806 |
u8 ctrl; |
|
807 |
int i; |
|
808 |
||
809 |
cmd_addr_data = ((op_read << *addr_len) | addr) << 16; |
|
810 |
||
811 |
/* Chip select */ |
|
812 |
iowrite8(eecs | eesk, &nic->csr->eeprom_ctrl_lo); |
|
813 |
e100_write_flush(nic); udelay(4); |
|
814 |
||
815 |
/* Bit-bang to read word from eeprom */ |
|
816 |
for (i = 31; i >= 0; i--) {
|
|
817 |
ctrl = (cmd_addr_data & (1 << i)) ? eecs | eedi : eecs; |
|
818 |
iowrite8(ctrl, &nic->csr->eeprom_ctrl_lo); |
|
819 |
e100_write_flush(nic); udelay(4); |
|
820 |
||
821 |
iowrite8(ctrl | eesk, &nic->csr->eeprom_ctrl_lo); |
|
822 |
e100_write_flush(nic); udelay(4); |
|
823 |
||
824 |
/* Eeprom drives a dummy zero to EEDO after receiving |
|
825 |
* complete address. Use this to adjust addr_len. */ |
|
826 |
ctrl = ioread8(&nic->csr->eeprom_ctrl_lo); |
|
827 |
if (!(ctrl & eedo) && i > 16) {
|
|
828 |
*addr_len -= (i - 16); |
|
829 |
i = 17; |
|
830 |
} |
|
831 |
||
832 |
data = (data << 1) | (ctrl & eedo ? 1 : 0); |
|
833 |
} |
|
834 |
||
835 |
/* Chip deselect */ |
|
836 |
iowrite8(0, &nic->csr->eeprom_ctrl_lo); |
|
837 |
e100_write_flush(nic); udelay(4); |
|
838 |
||
839 |
return cpu_to_le16(data); |
|
840 |
}; |
|
841 |
||
842 |
/* Load entire EEPROM image into driver cache and validate checksum */ |
|
843 |
static int e100_eeprom_load(struct nic *nic) |
|
844 |
{
|
|
845 |
u16 addr, addr_len = 8, checksum = 0; |
|
846 |
||
847 |
/* Try reading with an 8-bit addr len to discover actual addr len */ |
|
848 |
e100_eeprom_read(nic, &addr_len, 0); |
|
849 |
nic->eeprom_wc = 1 << addr_len; |
|
850 |
||
851 |
for (addr = 0; addr < nic->eeprom_wc; addr++) {
|
|
852 |
nic->eeprom[addr] = e100_eeprom_read(nic, &addr_len, addr); |
|
853 |
if (addr < nic->eeprom_wc - 1) |
|
854 |
checksum += le16_to_cpu(nic->eeprom[addr]); |
|
855 |
} |
|
856 |
||
857 |
/* The checksum, stored in the last word, is calculated such that |
|
858 |
* the sum of words should be 0xBABA */ |
|
859 |
if (cpu_to_le16(0xBABA - checksum) != nic->eeprom[nic->eeprom_wc - 1]) {
|
|
860 |
DPRINTK(PROBE, ERR, "EEPROM corrupted\n"); |
|
861 |
if (!eeprom_bad_csum_allow) |
|
862 |
return -EAGAIN; |
|
863 |
} |
|
864 |
||
865 |
return 0; |
|
866 |
} |
|
867 |
||
868 |
/* Save (portion of) driver EEPROM cache to device and update checksum */ |
|
869 |
static int e100_eeprom_save(struct nic *nic, u16 start, u16 count) |
|
870 |
{
|
|
871 |
u16 addr, addr_len = 8, checksum = 0; |
|
872 |
||
873 |
/* Try reading with an 8-bit addr len to discover actual addr len */ |
|
874 |
e100_eeprom_read(nic, &addr_len, 0); |
|
875 |
nic->eeprom_wc = 1 << addr_len; |
|
876 |
||
877 |
if (start + count >= nic->eeprom_wc) |
|
878 |
return -EINVAL; |
|
879 |
||
880 |
for (addr = start; addr < start + count; addr++) |
|
881 |
e100_eeprom_write(nic, addr_len, addr, nic->eeprom[addr]); |
|
882 |
||
883 |
/* The checksum, stored in the last word, is calculated such that |
|
884 |
* the sum of words should be 0xBABA */ |
|
885 |
for (addr = 0; addr < nic->eeprom_wc - 1; addr++) |
|
886 |
checksum += le16_to_cpu(nic->eeprom[addr]); |
|
887 |
nic->eeprom[nic->eeprom_wc - 1] = cpu_to_le16(0xBABA - checksum); |
|
888 |
e100_eeprom_write(nic, addr_len, nic->eeprom_wc - 1, |
|
889 |
nic->eeprom[nic->eeprom_wc - 1]); |
|
890 |
||
891 |
return 0; |
|
892 |
} |
|
893 |
||
894 |
#define E100_WAIT_SCB_TIMEOUT 20000 /* we might have to wait 100ms!!! */ |
|
895 |
#define E100_WAIT_SCB_FAST 20 /* delay like the old code */ |
|
896 |
static int e100_exec_cmd(struct nic *nic, u8 cmd, dma_addr_t dma_addr) |
|
897 |
{
|
|
898 |
unsigned long flags = 0; |
|
899 |
unsigned int i; |
|
900 |
int err = 0; |
|
901 |
||
902 |
if (!nic->ecdev) |
|
903 |
spin_lock_irqsave(&nic->cmd_lock, flags); |
|
904 |
||
905 |
/* Previous command is accepted when SCB clears */ |
|
906 |
for (i = 0; i < E100_WAIT_SCB_TIMEOUT; i++) {
|
|
907 |
if (likely(!ioread8(&nic->csr->scb.cmd_lo))) |
|
908 |
break; |
|
909 |
cpu_relax(); |
|
910 |
if (unlikely(i > E100_WAIT_SCB_FAST)) |
|
911 |
udelay(5); |
|
912 |
} |
|
913 |
if (unlikely(i == E100_WAIT_SCB_TIMEOUT)) {
|
|
914 |
err = -EAGAIN; |
|
915 |
goto err_unlock; |
|
916 |
} |
|
917 |
||
918 |
if (unlikely(cmd != cuc_resume)) |
|
919 |
iowrite32(dma_addr, &nic->csr->scb.gen_ptr); |
|
920 |
iowrite8(cmd, &nic->csr->scb.cmd_lo); |
|
921 |
||
922 |
err_unlock: |
|
923 |
if (!nic->ecdev) |
|
924 |
spin_unlock_irqrestore(&nic->cmd_lock, flags); |
|
925 |
||
926 |
return err; |
|
927 |
} |
|
928 |
||
929 |
static int e100_exec_cb(struct nic *nic, struct sk_buff *skb, |
|
930 |
void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *)) |
|
931 |
{
|
|
932 |
struct cb *cb; |
|
933 |
unsigned long flags = 0; |
|
934 |
int err = 0; |
|
935 |
||
936 |
if (!nic->ecdev) |
|
937 |
spin_lock_irqsave(&nic->cb_lock, flags); |
|
938 |
||
939 |
if (unlikely(!nic->cbs_avail)) {
|
|
940 |
err = -ENOMEM; |
|
941 |
goto err_unlock; |
|
942 |
} |
|
943 |
||
944 |
cb = nic->cb_to_use; |
|
945 |
nic->cb_to_use = cb->next; |
|
946 |
nic->cbs_avail--; |
|
947 |
cb->skb = skb; |
|
948 |
||
949 |
if (unlikely(!nic->cbs_avail)) |
|
950 |
err = -ENOSPC; |
|
951 |
||
952 |
cb_prepare(nic, cb, skb); |
|
953 |
||
954 |
/* Order is important otherwise we'll be in a race with h/w: |
|
955 |
* set S-bit in current first, then clear S-bit in previous. */ |
|
956 |
cb->command |= cpu_to_le16(cb_s); |
|
957 |
wmb(); |
|
958 |
cb->prev->command &= cpu_to_le16(~cb_s); |
|
959 |
||
960 |
while (nic->cb_to_send != nic->cb_to_use) {
|
|
961 |
if (unlikely(e100_exec_cmd(nic, nic->cuc_cmd, |
|
962 |
nic->cb_to_send->dma_addr))) {
|
|
963 |
/* Ok, here's where things get sticky. It's |
|
964 |
* possible that we can't schedule the command |
|
965 |
* because the controller is too busy, so |
|
966 |
* let's just queue the command and try again |
|
967 |
* when another command is scheduled. */ |
|
968 |
if (err == -ENOSPC) {
|
|
969 |
//request a reset |
|
970 |
schedule_work(&nic->tx_timeout_task); |
|
971 |
} |
|
972 |
break; |
|
973 |
} else {
|
|
974 |
nic->cuc_cmd = cuc_resume; |
|
975 |
nic->cb_to_send = nic->cb_to_send->next; |
|
976 |
} |
|
977 |
} |
|
978 |
||
979 |
err_unlock: |
|
980 |
if (!nic->ecdev) |
|
981 |
spin_unlock_irqrestore(&nic->cb_lock, flags); |
|
982 |
||
983 |
return err; |
|
984 |
} |
|
985 |
||
986 |
static int mdio_read(struct net_device *netdev, int addr, int reg) |
|
987 |
{
|
|
988 |
struct nic *nic = netdev_priv(netdev); |
|
989 |
return nic->mdio_ctrl(nic, addr, mdi_read, reg, 0); |
|
990 |
} |
|
991 |
||
992 |
static void mdio_write(struct net_device *netdev, int addr, int reg, int data) |
|
993 |
{
|
|
994 |
struct nic *nic = netdev_priv(netdev); |
|
995 |
||
996 |
nic->mdio_ctrl(nic, addr, mdi_write, reg, data); |
|
997 |
} |
|
998 |
||
999 |
/* the standard mdio_ctrl() function for usual MII-compliant hardware */ |
|
1000 |
static u16 mdio_ctrl_hw(struct nic *nic, u32 addr, u32 dir, u32 reg, u16 data) |
|
1001 |
{
|
|
1002 |
u32 data_out = 0; |
|
1003 |
unsigned int i; |
|
1004 |
unsigned long flags = 0; |
|
1005 |
||
1006 |
||
1007 |
/* |
|
1008 |
* Stratus87247: we shouldn't be writing the MDI control |
|
1009 |
* register until the Ready bit shows True. Also, since |
|
1010 |
* manipulation of the MDI control registers is a multi-step |
|
1011 |
* procedure it should be done under lock. |
|
1012 |
*/ |
|
1013 |
if (!nic->ecdev) |
|
1014 |
spin_lock_irqsave(&nic->mdio_lock, flags); |
|
1015 |
for (i = 100; i; --i) {
|
|
1016 |
if (ioread32(&nic->csr->mdi_ctrl) & mdi_ready) |
|
1017 |
break; |
|
1018 |
udelay(20); |
|
1019 |
} |
|
1020 |
if (unlikely(!i)) {
|
|
1021 |
printk("e100.mdio_ctrl(%s) won't go Ready\n",
|
|
1022 |
nic->netdev->name ); |
|
1023 |
if (!nic->ecdev) |
|
1024 |
spin_unlock_irqrestore(&nic->mdio_lock, flags); |
|
1025 |
return 0; /* No way to indicate timeout error */ |
|
1026 |
} |
|
1027 |
iowrite32((reg << 16) | (addr << 21) | dir | data, &nic->csr->mdi_ctrl); |
|
1028 |
||
1029 |
for (i = 0; i < 100; i++) {
|
|
1030 |
udelay(20); |
|
1031 |
if ((data_out = ioread32(&nic->csr->mdi_ctrl)) & mdi_ready) |
|
1032 |
break; |
|
1033 |
} |
|
1034 |
if (!nic->ecdev) |
|
1035 |
spin_unlock_irqrestore(&nic->mdio_lock, flags); |
|
1036 |
DPRINTK(HW, DEBUG, |
|
1037 |
"%s:addr=%d, reg=%d, data_in=0x%04X, data_out=0x%04X\n", |
|
1038 |
dir == mdi_read ? "READ" : "WRITE", addr, reg, data, data_out); |
|
1039 |
return (u16)data_out; |
|
1040 |
} |
|
1041 |
||
1042 |
/* slightly tweaked mdio_ctrl() function for phy_82552_v specifics */ |
|
1043 |
static u16 mdio_ctrl_phy_82552_v(struct nic *nic, |
|
1044 |
u32 addr, |
|
1045 |
u32 dir, |
|
1046 |
u32 reg, |
|
1047 |
u16 data) |
|
1048 |
{
|
|
1049 |
if ((reg == MII_BMCR) && (dir == mdi_write)) {
|
|
1050 |
if (data & (BMCR_ANRESTART | BMCR_ANENABLE)) {
|
|
1051 |
u16 advert = mdio_read(nic->netdev, nic->mii.phy_id, |
|
1052 |
MII_ADVERTISE); |
|
1053 |
||
1054 |
/* |
|
1055 |
* Workaround Si issue where sometimes the part will not |
|
1056 |
* autoneg to 100Mbps even when advertised. |
|
1057 |
*/ |
|
1058 |
if (advert & ADVERTISE_100FULL) |
|
1059 |
data |= BMCR_SPEED100 | BMCR_FULLDPLX; |
|
1060 |
else if (advert & ADVERTISE_100HALF) |
|
1061 |
data |= BMCR_SPEED100; |
|
1062 |
} |
|
1063 |
} |
|
1064 |
return mdio_ctrl_hw(nic, addr, dir, reg, data); |
|
1065 |
} |
|
1066 |
||
1067 |
/* Fully software-emulated mdio_ctrl() function for cards without |
|
1068 |
* MII-compliant PHYs. |
|
1069 |
* For now, this is mainly geared towards 80c24 support; in case of further |
|
1070 |
* requirements for other types (i82503, ...?) either extend this mechanism |
|
1071 |
* or split it, whichever is cleaner. |
|
1072 |
*/ |
|
1073 |
static u16 mdio_ctrl_phy_mii_emulated(struct nic *nic, |
|
1074 |
u32 addr, |
|
1075 |
u32 dir, |
|
1076 |
u32 reg, |
|
1077 |
u16 data) |
|
1078 |
{
|
|
1079 |
/* might need to allocate a netdev_priv'ed register array eventually |
|
1080 |
* to be able to record state changes, but for now |
|
1081 |
* some fully hardcoded register handling ought to be ok I guess. */ |
|
1082 |
||
1083 |
if (dir == mdi_read) {
|
|
1084 |
switch (reg) {
|
|
1085 |
case MII_BMCR: |
|
1086 |
/* Auto-negotiation, right? */ |
|
1087 |
return BMCR_ANENABLE | |
|
1088 |
BMCR_FULLDPLX; |
|
1089 |
case MII_BMSR: |
|
1090 |
return BMSR_LSTATUS /* for mii_link_ok() */ | |
|
1091 |
BMSR_ANEGCAPABLE | |
|
1092 |
BMSR_10FULL; |
|
1093 |
case MII_ADVERTISE: |
|
1094 |
/* 80c24 is a "combo card" PHY, right? */ |
|
1095 |
return ADVERTISE_10HALF | |
|
1096 |
ADVERTISE_10FULL; |
|
1097 |
default: |
|
1098 |
DPRINTK(HW, DEBUG, |
|
1099 |
"%s:addr=%d, reg=%d, data=0x%04X: unimplemented emulation!\n", |
|
1100 |
dir == mdi_read ? "READ" : "WRITE", addr, reg, data); |
|
1101 |
return 0xFFFF; |
|
1102 |
} |
|
1103 |
} else {
|
|
1104 |
switch (reg) {
|
|
1105 |
default: |
|
1106 |
DPRINTK(HW, DEBUG, |
|
1107 |
"%s:addr=%d, reg=%d, data=0x%04X: unimplemented emulation!\n", |
|
1108 |
dir == mdi_read ? "READ" : "WRITE", addr, reg, data); |
|
1109 |
return 0xFFFF; |
|
1110 |
} |
|
1111 |
} |
|
1112 |
} |
|
1113 |
static inline int e100_phy_supports_mii(struct nic *nic) |
|
1114 |
{
|
|
1115 |
/* for now, just check it by comparing whether we |
|
1116 |
are using MII software emulation. |
|
1117 |
*/ |
|
1118 |
return (nic->mdio_ctrl != mdio_ctrl_phy_mii_emulated); |
|
1119 |
} |
|
1120 |
||
1121 |
static void e100_get_defaults(struct nic *nic) |
|
1122 |
{
|
|
1123 |
struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
|
|
1124 |
struct param_range cbs = { .min = 64, .max = 256, .count = 128 };
|
|
1125 |
||
1126 |
/* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */ |
|
1127 |
nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->pdev->revision; |
|
1128 |
if (nic->mac == mac_unknown) |
|
1129 |
nic->mac = mac_82557_D100_A; |
|
1130 |
||
1131 |
nic->params.rfds = rfds; |
|
1132 |
nic->params.cbs = cbs; |
|
1133 |
||
1134 |
/* Quadwords to DMA into FIFO before starting frame transmit */ |
|
1135 |
nic->tx_threshold = 0xE0; |
|
1136 |
||
1137 |
/* no interrupt for every tx completion, delay = 256us if not 557 */ |
|
1138 |
nic->tx_command = cpu_to_le16(cb_tx | cb_tx_sf | |
|
1139 |
((nic->mac >= mac_82558_D101_A4) ? cb_cid : cb_i)); |
|
1140 |
||
1141 |
/* Template for a freshly allocated RFD */ |
|
1142 |
nic->blank_rfd.command = 0; |
|
1143 |
nic->blank_rfd.rbd = cpu_to_le32(0xFFFFFFFF); |
|
1144 |
nic->blank_rfd.size = cpu_to_le16(VLAN_ETH_FRAME_LEN); |
|
1145 |
||
1146 |
/* MII setup */ |
|
1147 |
nic->mii.phy_id_mask = 0x1F; |
|
1148 |
nic->mii.reg_num_mask = 0x1F; |
|
1149 |
nic->mii.dev = nic->netdev; |
|
1150 |
nic->mii.mdio_read = mdio_read; |
|
1151 |
nic->mii.mdio_write = mdio_write; |
|
1152 |
} |
|
1153 |
||
1154 |
static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb) |
|
1155 |
{
|
|
1156 |
struct config *config = &cb->u.config; |
|
1157 |
u8 *c = (u8 *)config; |
|
1158 |
||
1159 |
cb->command = cpu_to_le16(cb_config); |
|
1160 |
||
1161 |
memset(config, 0, sizeof(struct config)); |
|
1162 |
||
1163 |
config->byte_count = 0x16; /* bytes in this struct */ |
|
1164 |
config->rx_fifo_limit = 0x8; /* bytes in FIFO before DMA */ |
|
1165 |
config->direct_rx_dma = 0x1; /* reserved */ |
|
1166 |
config->standard_tcb = 0x1; /* 1=standard, 0=extended */ |
|
1167 |
config->standard_stat_counter = 0x1; /* 1=standard, 0=extended */ |
|
1168 |
config->rx_discard_short_frames = 0x1; /* 1=discard, 0=pass */ |
|
1169 |
config->tx_underrun_retry = 0x3; /* # of underrun retries */ |
|
1170 |
if (e100_phy_supports_mii(nic)) |
|
1171 |
config->mii_mode = 1; /* 1=MII mode, 0=i82503 mode */ |
|
1172 |
config->pad10 = 0x6; |
|
1173 |
config->no_source_addr_insertion = 0x1; /* 1=no, 0=yes */ |
|
1174 |
config->preamble_length = 0x2; /* 0=1, 1=3, 2=7, 3=15 bytes */ |
|
1175 |
config->ifs = 0x6; /* x16 = inter frame spacing */ |
|
1176 |
config->ip_addr_hi = 0xF2; /* ARP IP filter - not used */ |
|
1177 |
config->pad15_1 = 0x1; |
|
1178 |
config->pad15_2 = 0x1; |
|
1179 |
config->crs_or_cdt = 0x0; /* 0=CRS only, 1=CRS or CDT */ |
|
1180 |
config->fc_delay_hi = 0x40; /* time delay for fc frame */ |
|
1181 |
config->tx_padding = 0x1; /* 1=pad short frames */ |
|
1182 |
config->fc_priority_threshold = 0x7; /* 7=priority fc disabled */ |
|
1183 |
config->pad18 = 0x1; |
|
1184 |
config->full_duplex_pin = 0x1; /* 1=examine FDX# pin */ |
|
1185 |
config->pad20_1 = 0x1F; |
|
1186 |
config->fc_priority_location = 0x1; /* 1=byte#31, 0=byte#19 */ |
|
1187 |
config->pad21_1 = 0x5; |
|
1188 |
||
1189 |
config->adaptive_ifs = nic->adaptive_ifs; |
|
1190 |
config->loopback = nic->loopback; |
|
1191 |
||
1192 |
if (nic->mii.force_media && nic->mii.full_duplex) |
|
1193 |
config->full_duplex_force = 0x1; /* 1=force, 0=auto */ |
|
1194 |
||
1195 |
if (nic->flags & promiscuous || nic->loopback) {
|
|
1196 |
config->rx_save_bad_frames = 0x1; /* 1=save, 0=discard */ |
|
1197 |
config->rx_discard_short_frames = 0x0; /* 1=discard, 0=save */ |
|
1198 |
config->promiscuous_mode = 0x1; /* 1=on, 0=off */ |
|
1199 |
} |
|
1200 |
||
1201 |
if (nic->flags & multicast_all) |
|
1202 |
config->multicast_all = 0x1; /* 1=accept, 0=no */ |
|
1203 |
||
1204 |
/* disable WoL when up */ |
|
| 2421 | 1205 |
if (nic->ecdev || |
| 1812 | 1206 |
(netif_running(nic->netdev) || !(nic->flags & wol_magic))) |
1207 |
config->magic_packet_disable = 0x1; /* 1=off, 0=on */ |
|
1208 |
||
1209 |
if (nic->mac >= mac_82558_D101_A4) {
|
|
1210 |
config->fc_disable = 0x1; /* 1=Tx fc off, 0=Tx fc on */ |
|
1211 |
config->mwi_enable = 0x1; /* 1=enable, 0=disable */ |
|
1212 |
config->standard_tcb = 0x0; /* 1=standard, 0=extended */ |
|
1213 |
config->rx_long_ok = 0x1; /* 1=VLANs ok, 0=standard */ |
|
1214 |
if (nic->mac >= mac_82559_D101M) {
|
|
1215 |
config->tno_intr = 0x1; /* TCO stats enable */ |
|
1216 |
/* Enable TCO in extended config */ |
|
1217 |
if (nic->mac >= mac_82551_10) {
|
|
1218 |
config->byte_count = 0x20; /* extended bytes */ |
|
1219 |
config->rx_d102_mode = 0x1; /* GMRC for TCO */ |
|
1220 |
} |
|
1221 |
} else {
|
|
1222 |
config->standard_stat_counter = 0x0; |
|
1223 |
} |
|
1224 |
} |
|
1225 |
||
1226 |
DPRINTK(HW, DEBUG, "[00-07]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", |
|
1227 |
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]); |
|
1228 |
DPRINTK(HW, DEBUG, "[08-15]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", |
|
1229 |
c[8], c[9], c[10], c[11], c[12], c[13], c[14], c[15]); |
|
1230 |
DPRINTK(HW, DEBUG, "[16-23]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", |
|
1231 |
c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]); |
|
1232 |
} |
|
1233 |
||
1234 |
/************************************************************************* |
|
1235 |
* CPUSaver parameters |
|
1236 |
* |
|
1237 |
* All CPUSaver parameters are 16-bit literals that are part of a |
|
1238 |
* "move immediate value" instruction. By changing the value of |
|
1239 |
* the literal in the instruction before the code is loaded, the |
|
1240 |
* driver can change the algorithm. |
|
1241 |
* |
|
1242 |
* INTDELAY - This loads the dead-man timer with its initial value. |
|
1243 |
* When this timer expires the interrupt is asserted, and the |
|
1244 |
* timer is reset each time a new packet is received. (see |
|
1245 |
* BUNDLEMAX below to set the limit on number of chained packets) |
|
1246 |
* The current default is 0x600 or 1536. Experiments show that |
|
1247 |
* the value should probably stay within the 0x200 - 0x1000. |
|
1248 |
* |
|
1249 |
* BUNDLEMAX - |
|
1250 |
* This sets the maximum number of frames that will be bundled. In |
|
1251 |
* some situations, such as the TCP windowing algorithm, it may be |
|
1252 |
* better to limit the growth of the bundle size than let it go as |
|
1253 |
* high as it can, because that could cause too much added latency. |
|
1254 |
* The default is six, because this is the number of packets in the |
|
1255 |
* default TCP window size. A value of 1 would make CPUSaver indicate |
|
1256 |
* an interrupt for every frame received. If you do not want to put |
|
1257 |
* a limit on the bundle size, set this value to xFFFF. |
|
1258 |
* |
|
1259 |
* BUNDLESMALL - |
|
1260 |
* This contains a bit-mask describing the minimum size frame that |
|
1261 |
* will be bundled. The default masks the lower 7 bits, which means |
|
1262 |
* that any frame less than 128 bytes in length will not be bundled, |
|
1263 |
* but will instead immediately generate an interrupt. This does |
|
1264 |
* not affect the current bundle in any way. Any frame that is 128 |
|
1265 |
* bytes or large will be bundled normally. This feature is meant |
|
1266 |
* to provide immediate indication of ACK frames in a TCP environment. |
|
1267 |
* Customers were seeing poor performance when a machine with CPUSaver |
|
1268 |
* enabled was sending but not receiving. The delay introduced when |
|
1269 |
* the ACKs were received was enough to reduce total throughput, because |
|
1270 |
* the sender would sit idle until the ACK was finally seen. |
|
1271 |
* |
|
1272 |
* The current default is 0xFF80, which masks out the lower 7 bits. |
|
1273 |
* This means that any frame which is x7F (127) bytes or smaller |
|
1274 |
* will cause an immediate interrupt. Because this value must be a |
|
1275 |
* bit mask, there are only a few valid values that can be used. To |
|
1276 |
* turn this feature off, the driver can write the value xFFFF to the |
|
1277 |
* lower word of this instruction (in the same way that the other |
|
1278 |
* parameters are used). Likewise, a value of 0xF800 (2047) would |
|
1279 |
* cause an interrupt to be generated for every frame, because all |
|
1280 |
* standard Ethernet frames are <= 2047 bytes in length. |
|
1281 |
*************************************************************************/ |
|
1282 |
||
1283 |
/* if you wish to disable the ucode functionality, while maintaining the |
|
1284 |
* workarounds it provides, set the following defines to: |
|
1285 |
* BUNDLESMALL 0 |
|
1286 |
* BUNDLEMAX 1 |
|
1287 |
* INTDELAY 1 |
|
1288 |
*/ |
|
1289 |
#define BUNDLESMALL 1 |
|
1290 |
#define BUNDLEMAX (u16)6 |
|
1291 |
#define INTDELAY (u16)1536 /* 0x600 */ |
|
1292 |
||
1293 |
/* Initialize firmware */ |
|
1294 |
static const struct firmware *e100_request_firmware(struct nic *nic) |
|
1295 |
{
|
|
1296 |
const char *fw_name; |
|
1297 |
const struct firmware *fw; |
|
1298 |
u8 timer, bundle, min_size; |
|
1299 |
int err; |
|
1300 |
||
1301 |
/* do not load u-code for ICH devices */ |
|
1302 |
if (nic->flags & ich) |
|
1303 |
return NULL; |
|
1304 |
||
1305 |
/* Search for ucode match against h/w revision */ |
|
1306 |
if (nic->mac == mac_82559_D101M) |
|
1307 |
fw_name = FIRMWARE_D101M; |
|
1308 |
else if (nic->mac == mac_82559_D101S) |
|
1309 |
fw_name = FIRMWARE_D101S; |
|
1310 |
else if (nic->mac == mac_82551_F || nic->mac == mac_82551_10) |
|
1311 |
fw_name = FIRMWARE_D102E; |
|
1312 |
else /* No ucode on other devices */ |
|
1313 |
return NULL; |
|
1314 |
||
1315 |
err = request_firmware(&fw, fw_name, &nic->pdev->dev); |
|
1316 |
if (err) {
|
|
1317 |
DPRINTK(PROBE, ERR, "Failed to load firmware \"%s\": %d\n", |
|
1318 |
fw_name, err); |
|
1319 |
return ERR_PTR(err); |
|
1320 |
} |
|
1321 |
/* Firmware should be precisely UCODE_SIZE (words) plus three bytes |
|
1322 |
indicating the offsets for BUNDLESMALL, BUNDLEMAX, INTDELAY */ |
|
1323 |
if (fw->size != UCODE_SIZE * 4 + 3) {
|
|
1324 |
DPRINTK(PROBE, ERR, "Firmware \"%s\" has wrong size %zu\n", |
|
1325 |
fw_name, fw->size); |
|
1326 |
release_firmware(fw); |
|
1327 |
return ERR_PTR(-EINVAL); |
|
1328 |
} |
|
1329 |
||
1330 |
/* Read timer, bundle and min_size from end of firmware blob */ |
|
1331 |
timer = fw->data[UCODE_SIZE * 4]; |
|
1332 |
bundle = fw->data[UCODE_SIZE * 4 + 1]; |
|
1333 |
min_size = fw->data[UCODE_SIZE * 4 + 2]; |
|
1334 |
||
1335 |
if (timer >= UCODE_SIZE || bundle >= UCODE_SIZE || |
|
1336 |
min_size >= UCODE_SIZE) {
|
|
1337 |
DPRINTK(PROBE, ERR, |
|
1338 |
"\"%s\" has bogus offset values (0x%x,0x%x,0x%x)\n", |
|
1339 |
fw_name, timer, bundle, min_size); |
|
1340 |
release_firmware(fw); |
|
1341 |
return ERR_PTR(-EINVAL); |
|
1342 |
} |
|
1343 |
/* OK, firmware is validated and ready to use... */ |
|
1344 |
return fw; |
|
1345 |
} |
|
1346 |
||
1347 |
static void e100_setup_ucode(struct nic *nic, struct cb *cb, |
|
1348 |
struct sk_buff *skb) |
|
1349 |
{
|
|
1350 |
const struct firmware *fw = (void *)skb; |
|
1351 |
u8 timer, bundle, min_size; |
|
1352 |
||
1353 |
/* It's not a real skb; we just abused the fact that e100_exec_cb |
|
1354 |
will pass it through to here... */ |
|
1355 |
cb->skb = NULL; |
|
1356 |
||
1357 |
/* firmware is stored as little endian already */ |
|
1358 |
memcpy(cb->u.ucode, fw->data, UCODE_SIZE * 4); |
|
1359 |
||
1360 |
/* Read timer, bundle and min_size from end of firmware blob */ |
|
1361 |
timer = fw->data[UCODE_SIZE * 4]; |
|
1362 |
bundle = fw->data[UCODE_SIZE * 4 + 1]; |
|
1363 |
min_size = fw->data[UCODE_SIZE * 4 + 2]; |
|
1364 |
||
1365 |
/* Insert user-tunable settings in cb->u.ucode */ |
|
1366 |
cb->u.ucode[timer] &= cpu_to_le32(0xFFFF0000); |
|
1367 |
cb->u.ucode[timer] |= cpu_to_le32(INTDELAY); |
|
1368 |
cb->u.ucode[bundle] &= cpu_to_le32(0xFFFF0000); |
|
1369 |
cb->u.ucode[bundle] |= cpu_to_le32(BUNDLEMAX); |
|
1370 |
cb->u.ucode[min_size] &= cpu_to_le32(0xFFFF0000); |
|
1371 |
cb->u.ucode[min_size] |= cpu_to_le32((BUNDLESMALL) ? 0xFFFF : 0xFF80); |
|
1372 |
||
1373 |
cb->command = cpu_to_le16(cb_ucode | cb_el); |
|
1374 |
} |
|
1375 |
||
1376 |
static inline int e100_load_ucode_wait(struct nic *nic) |
|
1377 |
{
|
|
1378 |
const struct firmware *fw; |
|
1379 |
int err = 0, counter = 50; |
|
1380 |
struct cb *cb = nic->cb_to_clean; |
|
1381 |
||
1382 |
fw = e100_request_firmware(nic); |
|
1383 |
/* If it's NULL, then no ucode is required */ |
|
1384 |
if (!fw || IS_ERR(fw)) |
|
1385 |
return PTR_ERR(fw); |
|
1386 |
||
1387 |
if ((err = e100_exec_cb(nic, (void *)fw, e100_setup_ucode))) |
|
1388 |
DPRINTK(PROBE,ERR, "ucode cmd failed with error %d\n", err); |
|
1389 |
||
1390 |
/* must restart cuc */ |
|
1391 |
nic->cuc_cmd = cuc_start; |
|
1392 |
||
1393 |
/* wait for completion */ |
|
1394 |
e100_write_flush(nic); |
|
1395 |
udelay(10); |
|
1396 |
||
1397 |
/* wait for possibly (ouch) 500ms */ |
|
1398 |
while (!(cb->status & cpu_to_le16(cb_complete))) {
|
|
1399 |
msleep(10); |
|
1400 |
if (!--counter) break; |
|
1401 |
} |
|
1402 |
||
1403 |
/* ack any interrupts, something could have been set */ |
|
1404 |
iowrite8(~0, &nic->csr->scb.stat_ack); |
|
1405 |
||
1406 |
/* if the command failed, or is not OK, notify and return */ |
|
1407 |
if (!counter || !(cb->status & cpu_to_le16(cb_ok))) {
|
|
1408 |
DPRINTK(PROBE,ERR, "ucode load failed\n"); |
|
1409 |
err = -EPERM; |
|
1410 |
} |
|
1411 |
||
1412 |
return err; |
|
1413 |
} |
|
1414 |
||
1415 |
static void e100_setup_iaaddr(struct nic *nic, struct cb *cb, |
|
1416 |
struct sk_buff *skb) |
|
1417 |
{
|
|
1418 |
cb->command = cpu_to_le16(cb_iaaddr); |
|
1419 |
memcpy(cb->u.iaaddr, nic->netdev->dev_addr, ETH_ALEN); |
|
1420 |
} |
|
1421 |
||
1422 |
static void e100_dump(struct nic *nic, struct cb *cb, struct sk_buff *skb) |
|
1423 |
{
|
|
1424 |
cb->command = cpu_to_le16(cb_dump); |
|
1425 |
cb->u.dump_buffer_addr = cpu_to_le32(nic->dma_addr + |
|
1426 |
offsetof(struct mem, dump_buf)); |
|
1427 |
} |
|
1428 |
||
1429 |
static int e100_phy_check_without_mii(struct nic *nic) |
|
1430 |
{
|
|
1431 |
u8 phy_type; |
|
1432 |
int without_mii; |
|
1433 |
||
1434 |
phy_type = (nic->eeprom[eeprom_phy_iface] >> 8) & 0x0f; |
|
1435 |
||
1436 |
switch (phy_type) {
|
|
1437 |
case NoSuchPhy: /* Non-MII PHY; UNTESTED! */ |
|
1438 |
case I82503: /* Non-MII PHY; UNTESTED! */ |
|
1439 |
case S80C24: /* Non-MII PHY; tested and working */ |
|
1440 |
/* paragraph from the FreeBSD driver, "FXP_PHY_80C24": |
|
1441 |
* The Seeq 80c24 AutoDUPLEX(tm) Ethernet Interface Adapter |
|
1442 |
* doesn't have a programming interface of any sort. The |
|
1443 |
* media is sensed automatically based on how the link partner |
|
1444 |
* is configured. This is, in essence, manual configuration. |
|
1445 |
*/ |
|
1446 |
DPRINTK(PROBE, INFO, |
|
1447 |
"found MII-less i82503 or 80c24 or other PHY\n"); |
|
1448 |
||
1449 |
nic->mdio_ctrl = mdio_ctrl_phy_mii_emulated; |
|
1450 |
nic->mii.phy_id = 0; /* is this ok for an MII-less PHY? */ |
|
1451 |
||
1452 |
/* these might be needed for certain MII-less cards... |
|
1453 |
* nic->flags |= ich; |
|
1454 |
* nic->flags |= ich_10h_workaround; */ |
|
1455 |
||
1456 |
without_mii = 1; |
|
1457 |
break; |
|
1458 |
default: |
|
1459 |
without_mii = 0; |
|
1460 |
break; |
|
1461 |
} |
|
1462 |
return without_mii; |
|
1463 |
} |
|
1464 |
||
1465 |
#define NCONFIG_AUTO_SWITCH 0x0080 |
|
1466 |
#define MII_NSC_CONG MII_RESV1 |
|
1467 |
#define NSC_CONG_ENABLE 0x0100 |
|
1468 |
#define NSC_CONG_TXREADY 0x0400 |
|
1469 |
#define ADVERTISE_FC_SUPPORTED 0x0400 |
|
1470 |
static int e100_phy_init(struct nic *nic) |
|
1471 |
{
|
|
1472 |
struct net_device *netdev = nic->netdev; |
|
1473 |
u32 addr; |
|
1474 |
u16 bmcr, stat, id_lo, id_hi, cong; |
|
1475 |
||
1476 |
/* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
|
|
1477 |
for (addr = 0; addr < 32; addr++) {
|
|
1478 |
nic->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr; |
|
1479 |
bmcr = mdio_read(netdev, nic->mii.phy_id, MII_BMCR); |
|
1480 |
stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR); |
|
1481 |
stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR); |
|
1482 |
if (!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0)))) |
|
1483 |
break; |
|
1484 |
} |
|
1485 |
if (addr == 32) {
|
|
1486 |
/* uhoh, no PHY detected: check whether we seem to be some |
|
1487 |
* weird, rare variant which is *known* to not have any MII. |
|
1488 |
* But do this AFTER MII checking only, since this does |
|
1489 |
* lookup of EEPROM values which may easily be unreliable. */ |
|
1490 |
if (e100_phy_check_without_mii(nic)) |
|
1491 |
return 0; /* simply return and hope for the best */ |
|
1492 |
else {
|
|
1493 |
/* for unknown cases log a fatal error */ |
|
1494 |
DPRINTK(HW, ERR, |
|
1495 |
"Failed to locate any known PHY, aborting.\n"); |
|
1496 |
return -EAGAIN; |
|
1497 |
} |
|
1498 |
} else |
|
1499 |
DPRINTK(HW, DEBUG, "phy_addr = %d\n", nic->mii.phy_id); |
|
1500 |
||
1501 |
/* Isolate all the PHY ids */ |
|
1502 |
for (addr = 0; addr < 32; addr++) |
|
1503 |
mdio_write(netdev, addr, MII_BMCR, BMCR_ISOLATE); |
|
1504 |
/* Select the discovered PHY */ |
|
1505 |
bmcr &= ~BMCR_ISOLATE; |
|
1506 |
mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr); |
|
1507 |
||
1508 |
/* Get phy ID */ |
|
1509 |
id_lo = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID1); |
|
1510 |
id_hi = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID2); |
|
1511 |
nic->phy = (u32)id_hi << 16 | (u32)id_lo; |
|
1512 |
DPRINTK(HW, DEBUG, "phy ID = 0x%08X\n", nic->phy); |
|
1513 |
||
1514 |
/* Handle National tx phys */ |
|
1515 |
#define NCS_PHY_MODEL_MASK 0xFFF0FFFF |
|
1516 |
if ((nic->phy & NCS_PHY_MODEL_MASK) == phy_nsc_tx) {
|
|
1517 |
/* Disable congestion control */ |
|
1518 |
cong = mdio_read(netdev, nic->mii.phy_id, MII_NSC_CONG); |
|
1519 |
cong |= NSC_CONG_TXREADY; |
|
1520 |
cong &= ~NSC_CONG_ENABLE; |
|
1521 |
mdio_write(netdev, nic->mii.phy_id, MII_NSC_CONG, cong); |
|
1522 |
} |
|
1523 |
||
1524 |
if (nic->phy == phy_82552_v) {
|
|
1525 |
u16 advert = mdio_read(netdev, nic->mii.phy_id, MII_ADVERTISE); |
|
1526 |
||
1527 |
/* assign special tweaked mdio_ctrl() function */ |
|
1528 |
nic->mdio_ctrl = mdio_ctrl_phy_82552_v; |
|
1529 |
||
1530 |
/* Workaround Si not advertising flow-control during autoneg */ |
|
1531 |
advert |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
|
1532 |
mdio_write(netdev, nic->mii.phy_id, MII_ADVERTISE, advert); |
|
1533 |
||
1534 |
/* Reset for the above changes to take effect */ |
|
1535 |
bmcr = mdio_read(netdev, nic->mii.phy_id, MII_BMCR); |
|
1536 |
bmcr |= BMCR_RESET; |
|
1537 |
mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr); |
|
1538 |
} else if ((nic->mac >= mac_82550_D102) || ((nic->flags & ich) && |
|
1539 |
(mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) && |
|
1540 |
!(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) {
|
|
1541 |
/* enable/disable MDI/MDI-X auto-switching. */ |
|
1542 |
mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, |
|
1543 |
nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH); |
|
1544 |
} |
|
1545 |
||
1546 |
return 0; |
|
1547 |
} |
|
1548 |
||
1549 |
static int e100_hw_init(struct nic *nic) |
|
1550 |
{
|
|
1551 |
int err; |
|
1552 |
||
1553 |
e100_hw_reset(nic); |
|
1554 |
||
1555 |
DPRINTK(HW, ERR, "e100_hw_init\n"); |
|
1556 |
if (!in_interrupt() && (err = e100_self_test(nic))) |
|
1557 |
return err; |
|
1558 |
||
1559 |
if ((err = e100_phy_init(nic))) |
|
1560 |
return err; |
|
1561 |
if ((err = e100_exec_cmd(nic, cuc_load_base, 0))) |
|
1562 |
return err; |
|
1563 |
if ((err = e100_exec_cmd(nic, ruc_load_base, 0))) |
|
1564 |
return err; |
|
1565 |
if ((err = e100_load_ucode_wait(nic))) |
|
1566 |
return err; |
|
1567 |
if ((err = e100_exec_cb(nic, NULL, e100_configure))) |
|
1568 |
return err; |
|
1569 |
if ((err = e100_exec_cb(nic, NULL, e100_setup_iaaddr))) |
|
1570 |
return err; |
|
1571 |
if ((err = e100_exec_cmd(nic, cuc_dump_addr, |
|
1572 |
nic->dma_addr + offsetof(struct mem, stats)))) |
|
1573 |
return err; |
|
1574 |
if ((err = e100_exec_cmd(nic, cuc_dump_reset, 0))) |
|
1575 |
return err; |
|
1576 |
||
1577 |
e100_disable_irq(nic); |
|
1578 |
||
1579 |
return 0; |
|
1580 |
} |
|
1581 |
||
1582 |
static void e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb) |
|
1583 |
{
|
|
1584 |
struct net_device *netdev = nic->netdev; |
|
1585 |
struct dev_mc_list *list = netdev->mc_list; |
|
1586 |
u16 i, count = min(netdev->mc_count, E100_MAX_MULTICAST_ADDRS); |
|
1587 |
||
1588 |
cb->command = cpu_to_le16(cb_multi); |
|
1589 |
cb->u.multi.count = cpu_to_le16(count * ETH_ALEN); |
|
1590 |
for (i = 0; list && i < count; i++, list = list->next) |
|
1591 |
memcpy(&cb->u.multi.addr[i*ETH_ALEN], &list->dmi_addr, |
|
1592 |
ETH_ALEN); |
|
1593 |
} |
|
1594 |
||
1595 |
static void e100_set_multicast_list(struct net_device *netdev) |
|
1596 |
{
|
|
1597 |
struct nic *nic = netdev_priv(netdev); |
|
1598 |
||
1599 |
DPRINTK(HW, DEBUG, "mc_count=%d, flags=0x%04X\n", |
|
1600 |
netdev->mc_count, netdev->flags); |
|
1601 |
||
1602 |
if (netdev->flags & IFF_PROMISC) |
|
1603 |
nic->flags |= promiscuous; |
|
1604 |
else |
|
1605 |
nic->flags &= ~promiscuous; |
|
1606 |
||
1607 |
if (netdev->flags & IFF_ALLMULTI || |
|
1608 |
netdev->mc_count > E100_MAX_MULTICAST_ADDRS) |
|
1609 |
nic->flags |= multicast_all; |
|
1610 |
else |
|
1611 |
nic->flags &= ~multicast_all; |
|
1612 |
||
1613 |
e100_exec_cb(nic, NULL, e100_configure); |
|
1614 |
e100_exec_cb(nic, NULL, e100_multi); |
|
1615 |
} |
|
1616 |
||
1617 |
static void e100_update_stats(struct nic *nic) |
|
1618 |
{
|
|
1619 |
struct net_device *dev = nic->netdev; |
|
1620 |
struct net_device_stats *ns = &dev->stats; |
|
1621 |
struct stats *s = &nic->mem->stats; |
|
1622 |
__le32 *complete = (nic->mac < mac_82558_D101_A4) ? &s->fc_xmt_pause : |
|
1623 |
(nic->mac < mac_82559_D101M) ? (__le32 *)&s->xmt_tco_frames : |
|
1624 |
&s->complete; |
|
1625 |
||
1626 |
/* Device's stats reporting may take several microseconds to |
|
1627 |
* complete, so we're always waiting for results of the |
|
1628 |
* previous command. */ |
|
1629 |
||
1630 |
if (*complete == cpu_to_le32(cuc_dump_reset_complete)) {
|
|
1631 |
*complete = 0; |
|
1632 |
nic->tx_frames = le32_to_cpu(s->tx_good_frames); |
|
1633 |
nic->tx_collisions = le32_to_cpu(s->tx_total_collisions); |
|
1634 |
ns->tx_aborted_errors += le32_to_cpu(s->tx_max_collisions); |
|
1635 |
ns->tx_window_errors += le32_to_cpu(s->tx_late_collisions); |
|
1636 |
ns->tx_carrier_errors += le32_to_cpu(s->tx_lost_crs); |
|
1637 |
ns->tx_fifo_errors += le32_to_cpu(s->tx_underruns); |
|
1638 |
ns->collisions += nic->tx_collisions; |
|
1639 |
ns->tx_errors += le32_to_cpu(s->tx_max_collisions) + |
|
1640 |
le32_to_cpu(s->tx_lost_crs); |
|
1641 |
ns->rx_length_errors += le32_to_cpu(s->rx_short_frame_errors) + |
|
1642 |
nic->rx_over_length_errors; |
|
1643 |
ns->rx_crc_errors += le32_to_cpu(s->rx_crc_errors); |
|
1644 |
ns->rx_frame_errors += le32_to_cpu(s->rx_alignment_errors); |
|
1645 |
ns->rx_over_errors += le32_to_cpu(s->rx_overrun_errors); |
|
1646 |
ns->rx_fifo_errors += le32_to_cpu(s->rx_overrun_errors); |
|
1647 |
ns->rx_missed_errors += le32_to_cpu(s->rx_resource_errors); |
|
1648 |
ns->rx_errors += le32_to_cpu(s->rx_crc_errors) + |
|
1649 |
le32_to_cpu(s->rx_alignment_errors) + |
|
1650 |
le32_to_cpu(s->rx_short_frame_errors) + |
|
1651 |
le32_to_cpu(s->rx_cdt_errors); |
|
1652 |
nic->tx_deferred += le32_to_cpu(s->tx_deferred); |
|
1653 |
nic->tx_single_collisions += |
|
1654 |
le32_to_cpu(s->tx_single_collisions); |
|
1655 |
nic->tx_multiple_collisions += |
|
1656 |
le32_to_cpu(s->tx_multiple_collisions); |
|
1657 |
if (nic->mac >= mac_82558_D101_A4) {
|
|
1658 |
nic->tx_fc_pause += le32_to_cpu(s->fc_xmt_pause); |
|
1659 |
nic->rx_fc_pause += le32_to_cpu(s->fc_rcv_pause); |
|
1660 |
nic->rx_fc_unsupported += |
|
1661 |
le32_to_cpu(s->fc_rcv_unsupported); |
|
1662 |
if (nic->mac >= mac_82559_D101M) {
|
|
1663 |
nic->tx_tco_frames += |
|
1664 |
le16_to_cpu(s->xmt_tco_frames); |
|
1665 |
nic->rx_tco_frames += |
|
1666 |
le16_to_cpu(s->rcv_tco_frames); |
|
1667 |
} |
|
1668 |
} |
|
1669 |
} |
|
1670 |
||
1671 |
||
1672 |
if (e100_exec_cmd(nic, cuc_dump_reset, 0)) |
|
1673 |
DPRINTK(TX_ERR, DEBUG, "exec cuc_dump_reset failed\n"); |
|
1674 |
} |
|
1675 |
||
1676 |
static void e100_adjust_adaptive_ifs(struct nic *nic, int speed, int duplex) |
|
1677 |
{
|
|
1678 |
/* Adjust inter-frame-spacing (IFS) between two transmits if |
|
1679 |
* we're getting collisions on a half-duplex connection. */ |
|
1680 |
||
1681 |
if (duplex == DUPLEX_HALF) {
|
|
1682 |
u32 prev = nic->adaptive_ifs; |
|
1683 |
u32 min_frames = (speed == SPEED_100) ? 1000 : 100; |
|
1684 |
||
1685 |
if ((nic->tx_frames / 32 < nic->tx_collisions) && |
|
1686 |
(nic->tx_frames > min_frames)) {
|
|
1687 |
if (nic->adaptive_ifs < 60) |
|
1688 |
nic->adaptive_ifs += 5; |
|
1689 |
} else if (nic->tx_frames < min_frames) {
|
|
1690 |
if (nic->adaptive_ifs >= 5) |
|
1691 |
nic->adaptive_ifs -= 5; |
|
1692 |
} |
|
1693 |
if (nic->adaptive_ifs != prev) |
|
1694 |
e100_exec_cb(nic, NULL, e100_configure); |
|
1695 |
} |
|
1696 |
} |
|
1697 |
||
1698 |
static void e100_watchdog(unsigned long data) |
|
1699 |
{
|
|
1700 |
struct nic *nic = (struct nic *)data; |
|
1701 |
struct ethtool_cmd cmd; |
|
1702 |
||
1703 |
DPRINTK(TIMER, DEBUG, "right now = %ld\n", jiffies); |
|
1704 |
||
1705 |
/* mii library handles link maintenance tasks */ |
|
1706 |
||
1707 |
if (nic->ecdev) {
|
|
1708 |
ecdev_set_link(nic->ecdev, mii_link_ok(&nic->mii) ? 1 : 0); |
|
1709 |
} else {
|
|
1710 |
mii_ethtool_gset(&nic->mii, &cmd); |
|
1711 |
||
1712 |
if (mii_link_ok(&nic->mii) && !netif_carrier_ok(nic->netdev)) {
|
|
1713 |
printk(KERN_INFO "e100: %s NIC Link is Up %s Mbps %s Duplex\n", |
|
1714 |
nic->netdev->name, |
|
1715 |
cmd.speed == SPEED_100 ? "100" : "10", |
|
1716 |
cmd.duplex == DUPLEX_FULL ? "Full" : "Half"); |
|
1717 |
} else if (!mii_link_ok(&nic->mii) && netif_carrier_ok(nic->netdev)) {
|
|
1718 |
printk(KERN_INFO "e100: %s NIC Link is Down\n", |
|
1719 |
nic->netdev->name); |
|
1720 |
} |
|
1721 |
||
1722 |
mii_check_link(&nic->mii); |
|
1723 |
||
1724 |
/* Software generated interrupt to recover from (rare) Rx |
|
1725 |
* allocation failure. |
|
1726 |
* Unfortunately have to use a spinlock to not re-enable interrupts |
|
1727 |
* accidentally, due to hardware that shares a register between the |
|
1728 |
* interrupt mask bit and the SW Interrupt generation bit */ |
|
1729 |
spin_lock_irq(&nic->cmd_lock); |
|
1730 |
iowrite8(ioread8(&nic->csr->scb.cmd_hi) | irq_sw_gen,&nic->csr->scb.cmd_hi); |
|
1731 |
e100_write_flush(nic); |
|
1732 |
spin_unlock_irq(&nic->cmd_lock); |
|
1733 |
||
1734 |
e100_update_stats(nic); |
|
1735 |
e100_adjust_adaptive_ifs(nic, cmd.speed, cmd.duplex); |
|
1736 |
||
1737 |
if (nic->mac <= mac_82557_D100_C) |
|
1738 |
/* Issue a multicast command to workaround a 557 lock up */ |
|
1739 |
e100_set_multicast_list(nic->netdev); |
|
1740 |
||
1741 |
if (nic->flags & ich && cmd.speed==SPEED_10 && cmd.duplex==DUPLEX_HALF) |
|
1742 |
/* Need SW workaround for ICH[x] 10Mbps/half duplex Tx hang. */ |
|
1743 |
nic->flags |= ich_10h_workaround; |
|
1744 |
else |
|
1745 |
nic->flags &= ~ich_10h_workaround; |
|
1746 |
||
1747 |
mod_timer(&nic->watchdog, |
|
1748 |
round_jiffies(jiffies + E100_WATCHDOG_PERIOD)); |
|
1749 |
} |
|
1750 |
} |
|
1751 |
||
1752 |
static void e100_xmit_prepare(struct nic *nic, struct cb *cb, |
|
1753 |
struct sk_buff *skb) |
|
1754 |
{
|
|
1755 |
cb->command = nic->tx_command; |
|
1756 |
/* interrupt every 16 packets regardless of delay */ |
|
1757 |
if ((nic->cbs_avail & ~15) == nic->cbs_avail) |
|
1758 |
cb->command |= cpu_to_le16(cb_i); |
|
1759 |
cb->u.tcb.tbd_array = cb->dma_addr + offsetof(struct cb, u.tcb.tbd); |
|
1760 |
cb->u.tcb.tcb_byte_count = 0; |
|
1761 |
cb->u.tcb.threshold = nic->tx_threshold; |
|
1762 |
cb->u.tcb.tbd_count = 1; |
|
1763 |
cb->u.tcb.tbd.buf_addr = cpu_to_le32(pci_map_single(nic->pdev, |
|
1764 |
skb->data, skb->len, PCI_DMA_TODEVICE)); |
|
1765 |
/* check for mapping failure? */ |
|
1766 |
cb->u.tcb.tbd.size = cpu_to_le16(skb->len); |
|
1767 |
} |
|
1768 |
||
1769 |
static int e100_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
|
1770 |
{
|
|
1771 |
struct nic *nic = netdev_priv(netdev); |
|
1772 |
int err; |
|
1773 |
||
1774 |
if (nic->flags & ich_10h_workaround) {
|
|
1775 |
/* SW workaround for ICH[x] 10Mbps/half duplex Tx hang. |
|
1776 |
Issue a NOP command followed by a 1us delay before |
|
1777 |
issuing the Tx command. */ |
|
1778 |
if (e100_exec_cmd(nic, cuc_nop, 0)) |
|
1779 |
DPRINTK(TX_ERR, DEBUG, "exec cuc_nop failed\n"); |
|
1780 |
udelay(1); |
|
1781 |
} |
|
1782 |
||
1783 |
err = e100_exec_cb(nic, skb, e100_xmit_prepare); |
|
1784 |
||
1785 |
switch (err) {
|
|
1786 |
case -ENOSPC: |
|
1787 |
/* We queued the skb, but now we're out of space. */ |
|
1788 |
DPRINTK(TX_ERR, DEBUG, "No space for CB\n"); |
|
1789 |
if (!nic->ecdev) |
|
1790 |
netif_stop_queue(netdev); |
|
1791 |
break; |
|
1792 |
case -ENOMEM: |
|
1793 |
/* This is a hard error - log it. */ |
|
1794 |
DPRINTK(TX_ERR, DEBUG, "Out of Tx resources, returning skb\n"); |
|
1795 |
if (!nic->ecdev) |
|
1796 |
netif_stop_queue(netdev); |
|
1797 |
return NETDEV_TX_BUSY; |
|
1798 |
} |
|
1799 |
||
1800 |
netdev->trans_start = jiffies; |
|
1801 |
return 0; |
|
1802 |
} |
|
1803 |
||
1804 |
static int e100_tx_clean(struct nic *nic) |
|
1805 |
{
|
|
1806 |
struct net_device *dev = nic->netdev; |
|
1807 |
struct cb *cb; |
|
1808 |
int tx_cleaned = 0; |
|
1809 |
||
1810 |
if (!nic->ecdev) |
|
1811 |
spin_lock(&nic->cb_lock); |
|
1812 |
||
1813 |
/* Clean CBs marked complete */ |
|
1814 |
for (cb = nic->cb_to_clean; |
|
1815 |
cb->status & cpu_to_le16(cb_complete); |
|
1816 |
cb = nic->cb_to_clean = cb->next) {
|
|
1817 |
DPRINTK(TX_DONE, DEBUG, "cb[%d]->status = 0x%04X\n", |
|
1818 |
(int)(((void*)cb - (void*)nic->cbs)/sizeof(struct cb)), |
|
1819 |
cb->status); |
|
1820 |
||
1821 |
if (likely(cb->skb != NULL)) {
|
|
1822 |
dev->stats.tx_packets++; |
|
1823 |
dev->stats.tx_bytes += cb->skb->len; |
|
1824 |
||
1825 |
pci_unmap_single(nic->pdev, |
|
1826 |
le32_to_cpu(cb->u.tcb.tbd.buf_addr), |
|
1827 |
le16_to_cpu(cb->u.tcb.tbd.size), |
|
1828 |
PCI_DMA_TODEVICE); |
|
1829 |
if (!nic->ecdev) |
|
1830 |
dev_kfree_skb_any(cb->skb); |
|
1831 |
cb->skb = NULL; |
|
1832 |
tx_cleaned = 1; |
|
1833 |
} |
|
1834 |
cb->status = 0; |
|
1835 |
nic->cbs_avail++; |
|
1836 |
} |
|
1837 |
||
1838 |
if (!nic->ecdev) {
|
|
1839 |
spin_unlock(&nic->cb_lock); |
|
1840 |
||
1841 |
/* Recover from running out of Tx resources in xmit_frame */ |
|
1842 |
if (unlikely(tx_cleaned && netif_queue_stopped(nic->netdev))) |
|
1843 |
netif_wake_queue(nic->netdev); |
|
1844 |
} |
|
1845 |
||
1846 |
return tx_cleaned; |
|
1847 |
} |
|
1848 |
||
1849 |
static void e100_clean_cbs(struct nic *nic) |
|
1850 |
{
|
|
1851 |
if (nic->cbs) {
|
|
1852 |
while (nic->cbs_avail != nic->params.cbs.count) {
|
|
1853 |
struct cb *cb = nic->cb_to_clean; |
|
1854 |
if (cb->skb) {
|
|
1855 |
pci_unmap_single(nic->pdev, |
|
1856 |
le32_to_cpu(cb->u.tcb.tbd.buf_addr), |
|
1857 |
le16_to_cpu(cb->u.tcb.tbd.size), |
|
1858 |
PCI_DMA_TODEVICE); |
|
1859 |
if (!nic->ecdev) |
|
1860 |
dev_kfree_skb(cb->skb); |
|
1861 |
} |
|
1862 |
nic->cb_to_clean = nic->cb_to_clean->next; |
|
1863 |
nic->cbs_avail++; |
|
1864 |
} |
|
1865 |
pci_free_consistent(nic->pdev, |
|
1866 |
sizeof(struct cb) * nic->params.cbs.count, |
|
1867 |
nic->cbs, nic->cbs_dma_addr); |
|
1868 |
nic->cbs = NULL; |
|
1869 |
nic->cbs_avail = 0; |
|
1870 |
} |
|
1871 |
nic->cuc_cmd = cuc_start; |
|
1872 |
nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = |
|
1873 |
nic->cbs; |
|
1874 |
} |
|
1875 |
||
1876 |
static int e100_alloc_cbs(struct nic *nic) |
|
1877 |
{
|
|
1878 |
struct cb *cb; |
|
1879 |
unsigned int i, count = nic->params.cbs.count; |
|
1880 |
||
1881 |
nic->cuc_cmd = cuc_start; |
|
1882 |
nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = NULL; |
|
1883 |
nic->cbs_avail = 0; |
|
1884 |
||
1885 |
nic->cbs = pci_alloc_consistent(nic->pdev, |
|
1886 |
sizeof(struct cb) * count, &nic->cbs_dma_addr); |
|
1887 |
if (!nic->cbs) |
|
1888 |
return -ENOMEM; |
|
1889 |
||
1890 |
for (cb = nic->cbs, i = 0; i < count; cb++, i++) {
|
|
1891 |
cb->next = (i + 1 < count) ? cb + 1 : nic->cbs; |
|
1892 |
cb->prev = (i == 0) ? nic->cbs + count - 1 : cb - 1; |
|
1893 |
||
1894 |
cb->dma_addr = nic->cbs_dma_addr + i * sizeof(struct cb); |
|
1895 |
cb->link = cpu_to_le32(nic->cbs_dma_addr + |
|
1896 |
((i+1) % count) * sizeof(struct cb)); |
|
1897 |
cb->skb = NULL; |
|
1898 |
} |
|
1899 |
||
1900 |
nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = nic->cbs; |
|
1901 |
nic->cbs_avail = count; |
|
1902 |
||
1903 |
return 0; |
|
1904 |
} |
|
1905 |
||
1906 |
static inline void e100_start_receiver(struct nic *nic, struct rx *rx) |
|
1907 |
{
|
|
1908 |
if (!nic->rxs) return; |
|
1909 |
if (RU_SUSPENDED != nic->ru_running) return; |
|
1910 |
||
1911 |
/* handle init time starts */ |
|
1912 |
if (!rx) rx = nic->rxs; |
|
1913 |
||
1914 |
/* (Re)start RU if suspended or idle and RFA is non-NULL */ |
|
1915 |
if (rx->skb) {
|
|
1916 |
e100_exec_cmd(nic, ruc_start, rx->dma_addr); |
|
1917 |
nic->ru_running = RU_RUNNING; |
|
1918 |
} |
|
1919 |
} |
|
1920 |
||
1921 |
#define RFD_BUF_LEN (sizeof(struct rfd) + VLAN_ETH_FRAME_LEN) |
|
1922 |
static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx) |
|
1923 |
{
|
|
1924 |
if (!(rx->skb = netdev_alloc_skb(nic->netdev, RFD_BUF_LEN + NET_IP_ALIGN))) |
|
1925 |
return -ENOMEM; |
|
1926 |
||
1927 |
/* Align, init, and map the RFD. */ |
|
1928 |
skb_reserve(rx->skb, NET_IP_ALIGN); |
|
1929 |
skb_copy_to_linear_data(rx->skb, &nic->blank_rfd, sizeof(struct rfd)); |
|
1930 |
rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data, |
|
1931 |
RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); |
|
1932 |
||
1933 |
if (pci_dma_mapping_error(nic->pdev, rx->dma_addr)) {
|
|
1934 |
dev_kfree_skb_any(rx->skb); |
|
1935 |
rx->skb = NULL; |
|
1936 |
rx->dma_addr = 0; |
|
1937 |
return -ENOMEM; |
|
1938 |
} |
|
1939 |
||
1940 |
/* Link the RFD to end of RFA by linking previous RFD to |
|
1941 |
* this one. We are safe to touch the previous RFD because |
|
1942 |
* it is protected by the before last buffer's el bit being set */ |
|
1943 |
if (rx->prev->skb) {
|
|
1944 |
struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data; |
|
1945 |
put_unaligned_le32(rx->dma_addr, &prev_rfd->link); |
|
1946 |
pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr, |
|
1947 |
sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL); |
|
1948 |
} |
|
1949 |
||
1950 |
return 0; |
|
1951 |
} |
|
1952 |
||
1953 |
static int e100_rx_indicate(struct nic *nic, struct rx *rx, |
|
1954 |
unsigned int *work_done, unsigned int work_to_do) |
|
1955 |
{
|
|
1956 |
struct net_device *dev = nic->netdev; |
|
1957 |
struct sk_buff *skb = rx->skb; |
|
1958 |
struct rfd *rfd = (struct rfd *)skb->data; |
|
1959 |
u16 rfd_status, actual_size; |
|
1960 |
||
1961 |
if (unlikely(work_done && *work_done >= work_to_do)) |
|
1962 |
return -EAGAIN; |
|
1963 |
||
1964 |
/* Need to sync before taking a peek at cb_complete bit */ |
|
1965 |
pci_dma_sync_single_for_cpu(nic->pdev, rx->dma_addr, |
|
1966 |
sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL); |
|
1967 |
rfd_status = le16_to_cpu(rfd->status); |
|
1968 |
||
1969 |
DPRINTK(RX_STATUS, DEBUG, "status=0x%04X\n", rfd_status); |
|
1970 |
||
1971 |
/* If data isn't ready, nothing to indicate */ |
|
1972 |
if (unlikely(!(rfd_status & cb_complete))) {
|
|
1973 |
/* If the next buffer has the el bit, but we think the receiver |
|
1974 |
* is still running, check to see if it really stopped while |
|
1975 |
* we had interrupts off. |
|
1976 |
* This allows for a fast restart without re-enabling |
|
1977 |
* interrupts */ |
|
1978 |
if ((le16_to_cpu(rfd->command) & cb_el) && |
|
1979 |
(RU_RUNNING == nic->ru_running)) |
|
1980 |
||
1981 |
if (ioread8(&nic->csr->scb.status) & rus_no_res) |
|
1982 |
nic->ru_running = RU_SUSPENDED; |
|
1983 |
pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr, |
|
1984 |
sizeof(struct rfd), |
|
1985 |
PCI_DMA_FROMDEVICE); |
|
1986 |
return -ENODATA; |
|
1987 |
} |
|
1988 |
||
1989 |
/* Get actual data size */ |
|
1990 |
actual_size = le16_to_cpu(rfd->actual_size) & 0x3FFF; |
|
1991 |
if (unlikely(actual_size > RFD_BUF_LEN - sizeof(struct rfd))) |
|
1992 |
actual_size = RFD_BUF_LEN - sizeof(struct rfd); |
|
1993 |
||
1994 |
/* Get data */ |
|
1995 |
pci_unmap_single(nic->pdev, rx->dma_addr, |
|
1996 |
RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); |
|
1997 |
||
1998 |
/* If this buffer has the el bit, but we think the receiver |
|
1999 |
* is still running, check to see if it really stopped while |
|
2000 |
* we had interrupts off. |
|
2001 |
* This allows for a fast restart without re-enabling interrupts. |
|
2002 |
* This can happen when the RU sees the size change but also sees |
|
2003 |
* the el bit set. */ |
|
2004 |
if ((le16_to_cpu(rfd->command) & cb_el) && |
|
2005 |
(RU_RUNNING == nic->ru_running)) {
|
|
2006 |
||
2007 |
if (ioread8(&nic->csr->scb.status) & rus_no_res) |
|
2008 |
nic->ru_running = RU_SUSPENDED; |
|
2009 |
} |
|
2010 |
||
2011 |
if (!nic->ecdev) {
|
|
2012 |
/* Pull off the RFD and put the actual data (minus eth hdr) */ |
|
2013 |
skb_reserve(skb, sizeof(struct rfd)); |
|
2014 |
skb_put(skb, actual_size); |
|
2015 |
skb->protocol = eth_type_trans(skb, nic->netdev); |
|
2016 |
} |
|
2017 |
||
2018 |
if (unlikely(!(rfd_status & cb_ok))) {
|
|
2019 |
if (!nic->ecdev) {
|
|
2020 |
/* Don't indicate if hardware indicates errors */ |
|
2021 |
dev_kfree_skb_any(skb); |
|
2022 |
} |
|
2023 |
} else if (actual_size > ETH_DATA_LEN + VLAN_ETH_HLEN) {
|
|
2024 |
/* Don't indicate oversized frames */ |
|
2025 |
nic->rx_over_length_errors++; |
|
2026 |
if (!nic->ecdev) |
|
2027 |
dev_kfree_skb_any(skb); |
|
2028 |
} else {
|
|
2029 |
dev->stats.rx_packets++; |
|
2030 |
dev->stats.rx_bytes += actual_size; |
|
2031 |
if (nic->ecdev) {
|
|
2032 |
ecdev_receive(nic->ecdev, |
|
2033 |
skb->data + sizeof(struct rfd), actual_size); |
|
2034 |
||
2035 |
// No need to detect link status as |
|
2036 |
// long as frames are received: Reset watchdog. |
|
2037 |
nic->ec_watchdog_jiffies = jiffies; |
|
2038 |
} else {
|
|
2039 |
netif_receive_skb(skb); |
|
2040 |
} |
|
2041 |
if (work_done) |
|
2042 |
(*work_done)++; |
|
2043 |
} |
|
2044 |
||
2045 |
if (nic->ecdev) {
|
|
2046 |
// make receive frame descriptior usable again |
|
2047 |
memcpy(skb->data, &nic->blank_rfd, sizeof(struct rfd)); |
|
2048 |
rx->dma_addr = pci_map_single(nic->pdev, skb->data, |
|
2049 |
RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); |
|
2050 |
if (pci_dma_mapping_error(nic->pdev, rx->dma_addr)) {
|
|
2051 |
rx->dma_addr = 0; |
|
2052 |
} |
|
2053 |
||
2054 |
/* Link the RFD to end of RFA by linking previous RFD to |
|
2055 |
* this one. We are safe to touch the previous RFD because |
|
2056 |
* it is protected by the before last buffer's el bit being set */ |
|
2057 |
if (rx->prev->skb) {
|
|
2058 |
struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data; |
|
2059 |
put_unaligned_le32(rx->dma_addr, &prev_rfd->link); |
|
2060 |
pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr, |
|
2061 |
sizeof(struct rfd), PCI_DMA_TODEVICE); |
|
2062 |
} |
|
2063 |
} else {
|
|
2064 |
rx->skb = NULL; |
|
2065 |
} |
|
2066 |
||
2067 |
return 0; |
|
2068 |
} |
|
2069 |
||
2070 |
static void e100_rx_clean(struct nic *nic, unsigned int *work_done, |
|
2071 |
unsigned int work_to_do) |
|
2072 |
{
|
|
2073 |
struct rx *rx; |
|
2074 |
int restart_required = 0, err = 0; |
|
2075 |
struct rx *old_before_last_rx, *new_before_last_rx; |
|
2076 |
struct rfd *old_before_last_rfd, *new_before_last_rfd; |
|
2077 |
||
2078 |
/* Indicate newly arrived packets */ |
|
2079 |
for (rx = nic->rx_to_clean; rx->skb; rx = nic->rx_to_clean = rx->next) {
|
|
2080 |
err = e100_rx_indicate(nic, rx, work_done, work_to_do); |
|
2081 |
/* Hit quota or no more to clean */ |
|
2082 |
if (-EAGAIN == err || -ENODATA == err) |
|
2083 |
break; |
|
2084 |
} |
|
2085 |
||
2086 |
||
2087 |
/* On EAGAIN, hit quota so have more work to do, restart once |
|
2088 |
* cleanup is complete. |
|
2089 |
* Else, are we already rnr? then pay attention!!! this ensures that |
|
2090 |
* the state machine progression never allows a start with a |
|
2091 |
* partially cleaned list, avoiding a race between hardware |
|
2092 |
* and rx_to_clean when in NAPI mode */ |
|
2093 |
if (-EAGAIN != err && RU_SUSPENDED == nic->ru_running) |
|
2094 |
restart_required = 1; |
|
2095 |
||
2096 |
old_before_last_rx = nic->rx_to_use->prev->prev; |
|
2097 |
old_before_last_rfd = (struct rfd *)old_before_last_rx->skb->data; |
|
2098 |
||
2099 |
if (!nic->ecdev) {
|
|
2100 |
/* Alloc new skbs to refill list */ |
|
2101 |
for(rx = nic->rx_to_use; !rx->skb; rx = nic->rx_to_use = rx->next) {
|
|
2102 |
if(unlikely(e100_rx_alloc_skb(nic, rx))) |
|
2103 |
break; /* Better luck next time (see watchdog) */ |
|
2104 |
} |
|
2105 |
} |
|
2106 |
||
2107 |
new_before_last_rx = nic->rx_to_use->prev->prev; |
|
2108 |
if (new_before_last_rx != old_before_last_rx) {
|
|
2109 |
/* Set the el-bit on the buffer that is before the last buffer. |
|
2110 |
* This lets us update the next pointer on the last buffer |
|
2111 |
* without worrying about hardware touching it. |
|
2112 |
* We set the size to 0 to prevent hardware from touching this |
|
2113 |
* buffer. |
|
2114 |
* When the hardware hits the before last buffer with el-bit |
|
2115 |
* and size of 0, it will RNR interrupt, the RUS will go into |
|
2116 |
* the No Resources state. It will not complete nor write to |
|
2117 |
* this buffer. */ |
|
2118 |
new_before_last_rfd = |
|
2119 |
(struct rfd *)new_before_last_rx->skb->data; |
|
2120 |
new_before_last_rfd->size = 0; |
|
2121 |
new_before_last_rfd->command |= cpu_to_le16(cb_el); |
|
2122 |
pci_dma_sync_single_for_device(nic->pdev, |
|
2123 |
new_before_last_rx->dma_addr, sizeof(struct rfd), |
|
2124 |
PCI_DMA_BIDIRECTIONAL); |
|
2125 |
||
2126 |
/* Now that we have a new stopping point, we can clear the old |
|
2127 |
* stopping point. We must sync twice to get the proper |
|
2128 |
* ordering on the hardware side of things. */ |
|
2129 |
old_before_last_rfd->command &= ~cpu_to_le16(cb_el); |
|
2130 |
pci_dma_sync_single_for_device(nic->pdev, |
|
2131 |
old_before_last_rx->dma_addr, sizeof(struct rfd), |
|
2132 |
PCI_DMA_BIDIRECTIONAL); |
|
2133 |
old_before_last_rfd->size = cpu_to_le16(VLAN_ETH_FRAME_LEN); |
|
2134 |
pci_dma_sync_single_for_device(nic->pdev, |
|
2135 |
old_before_last_rx->dma_addr, sizeof(struct rfd), |
|
2136 |
PCI_DMA_BIDIRECTIONAL); |
|
2137 |
} |
|
2138 |
||
2139 |
if (restart_required) {
|
|
2140 |
// ack the rnr? |
|
2141 |
iowrite8(stat_ack_rnr, &nic->csr->scb.stat_ack); |
|
2142 |
e100_start_receiver(nic, nic->rx_to_clean); |
|
2143 |
if (work_done) |
|
2144 |
(*work_done)++; |
|
2145 |
} |
|
2146 |
} |
|
2147 |
||
2148 |
static void e100_rx_clean_list(struct nic *nic) |
|
2149 |
{
|
|
2150 |
struct rx *rx; |
|
2151 |
unsigned int i, count = nic->params.rfds.count; |
|
2152 |
||
2153 |
nic->ru_running = RU_UNINITIALIZED; |
|
2154 |
||
2155 |
if (nic->rxs) {
|
|
2156 |
for (rx = nic->rxs, i = 0; i < count; rx++, i++) {
|
|
2157 |
if (rx->skb) {
|
|
2158 |
pci_unmap_single(nic->pdev, rx->dma_addr, |
|
2159 |
RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); |
|
2160 |
dev_kfree_skb(rx->skb); |
|
2161 |
} |
|
2162 |
} |
|
2163 |
kfree(nic->rxs); |
|
2164 |
nic->rxs = NULL; |
|
2165 |
} |
|
2166 |
||
2167 |
nic->rx_to_use = nic->rx_to_clean = NULL; |
|
2168 |
} |
|
2169 |
||
2170 |
static int e100_rx_alloc_list(struct nic *nic) |
|
2171 |
{
|
|
2172 |
struct rx *rx; |
|
2173 |
unsigned int i, count = nic->params.rfds.count; |
|
2174 |
struct rfd *before_last; |
|
2175 |
||
2176 |
nic->rx_to_use = nic->rx_to_clean = NULL; |
|
2177 |
nic->ru_running = RU_UNINITIALIZED; |
|
2178 |
||
2179 |
if (!(nic->rxs = kcalloc(count, sizeof(struct rx), GFP_ATOMIC))) |
|
2180 |
return -ENOMEM; |
|
2181 |
||
2182 |
for (rx = nic->rxs, i = 0; i < count; rx++, i++) {
|
|
2183 |
rx->next = (i + 1 < count) ? rx + 1 : nic->rxs; |
|
2184 |
rx->prev = (i == 0) ? nic->rxs + count - 1 : rx - 1; |
|
2185 |
if (e100_rx_alloc_skb(nic, rx)) {
|
|
2186 |
e100_rx_clean_list(nic); |
|
2187 |
return -ENOMEM; |
|
2188 |
} |
|
2189 |
} |
|
2190 |
||
2191 |
if (!nic->ecdev) {
|
|
2192 |
/* Set the el-bit on the buffer that is before the last buffer. |
|
2193 |
* This lets us update the next pointer on the last buffer without |
|
2194 |
* worrying about hardware touching it. |
|
2195 |
* We set the size to 0 to prevent hardware from touching this buffer. |
|
2196 |
* When the hardware hits the before last buffer with el-bit and size |
|
2197 |
* of 0, it will RNR interrupt, the RU will go into the No Resources |
|
2198 |
* state. It will not complete nor write to this buffer. */ |
|
2199 |
rx = nic->rxs->prev->prev; |
|
2200 |
before_last = (struct rfd *)rx->skb->data; |
|
2201 |
before_last->command |= cpu_to_le16(cb_el); |
|
2202 |
before_last->size = 0; |
|
2203 |
pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr, |
|
2204 |
sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL); |
|
2205 |
} |
|
2206 |
||
2207 |
nic->rx_to_use = nic->rx_to_clean = nic->rxs; |
|
2208 |
nic->ru_running = RU_SUSPENDED; |
|
2209 |
||
2210 |
return 0; |
|
2211 |
} |
|
2212 |
||
2213 |
static irqreturn_t e100_intr(int irq, void *dev_id) |
|
2214 |
{
|
|
2215 |
struct net_device *netdev = dev_id; |
|
2216 |
struct nic *nic = netdev_priv(netdev); |
|
2217 |
u8 stat_ack = ioread8(&nic->csr->scb.stat_ack); |
|
2218 |
||
2219 |
DPRINTK(INTR, DEBUG, "stat_ack = 0x%02X\n", stat_ack); |
|
2220 |
||
2221 |
if (stat_ack == stat_ack_not_ours || /* Not our interrupt */ |
|
2222 |
stat_ack == stat_ack_not_present) /* Hardware is ejected */ |
|
2223 |
return IRQ_NONE; |
|
2224 |
||
2225 |
/* Ack interrupt(s) */ |
|
2226 |
iowrite8(stat_ack, &nic->csr->scb.stat_ack); |
|
2227 |
||
2228 |
/* We hit Receive No Resource (RNR); restart RU after cleaning */ |
|
2229 |
if (stat_ack & stat_ack_rnr) |
|
2230 |
nic->ru_running = RU_SUSPENDED; |
|
2231 |
||
2232 |
if (!nic->ecdev && likely(napi_schedule_prep(&nic->napi))) {
|
|
2233 |
e100_disable_irq(nic); |
|
2234 |
__napi_schedule(&nic->napi); |
|
2235 |
} |
|
2236 |
||
2237 |
return IRQ_HANDLED; |
|
2238 |
} |
|
2239 |
||
2240 |
void e100_ec_poll(struct net_device *netdev) |
|
2241 |
{
|
|
2242 |
struct nic *nic = netdev_priv(netdev); |
|
2243 |
||
2244 |
e100_rx_clean(nic, NULL, 100); |
|
2245 |
e100_tx_clean(nic); |
|
2246 |
||
2247 |
if (jiffies - nic->ec_watchdog_jiffies >= 2 * HZ) {
|
|
2248 |
e100_watchdog((unsigned long) nic); |
|
2249 |
nic->ec_watchdog_jiffies = jiffies; |
|
2250 |
} |
|
2251 |
} |
|
2252 |
||
2253 |
||
2254 |
static int e100_poll(struct napi_struct *napi, int budget) |
|
2255 |
{
|
|
2256 |
struct nic *nic = container_of(napi, struct nic, napi); |
|
2257 |
unsigned int work_done = 0; |
|
2258 |
||
2259 |
e100_rx_clean(nic, &work_done, budget); |
|
2260 |
e100_tx_clean(nic); |
|
2261 |
||
2262 |
/* If budget not fully consumed, exit the polling mode */ |
|
2263 |
if (work_done < budget) {
|
|
2264 |
napi_complete(napi); |
|
2265 |
e100_enable_irq(nic); |
|
2266 |
} |
|
2267 |
||
2268 |
return work_done; |
|
2269 |
} |
|
2270 |
||
2271 |
#ifdef CONFIG_NET_POLL_CONTROLLER |
|
2272 |
static void e100_netpoll(struct net_device *netdev) |
|
2273 |
{
|
|
2274 |
struct nic *nic = netdev_priv(netdev); |
|
2275 |
||
2276 |
e100_disable_irq(nic); |
|
2277 |
e100_intr(nic->pdev->irq, netdev); |
|
2278 |
e100_tx_clean(nic); |
|
2279 |
e100_enable_irq(nic); |
|
2280 |
} |
|
2281 |
#endif |
|
2282 |
||
2283 |
static int e100_set_mac_address(struct net_device *netdev, void *p) |
|
2284 |
{
|
|
2285 |
struct nic *nic = netdev_priv(netdev); |
|
2286 |
struct sockaddr *addr = p; |
|
2287 |
||
2288 |
if (!is_valid_ether_addr(addr->sa_data)) |
|
2289 |
return -EADDRNOTAVAIL; |
|
2290 |
||
2291 |
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
|
2292 |
e100_exec_cb(nic, NULL, e100_setup_iaaddr); |
|
2293 |
||
2294 |
return 0; |
|
2295 |
} |
|
2296 |
||
2297 |
static int e100_change_mtu(struct net_device *netdev, int new_mtu) |
|
2298 |
{
|
|
2299 |
if (new_mtu < ETH_ZLEN || new_mtu > ETH_DATA_LEN) |
|
2300 |
return -EINVAL; |
|
2301 |
netdev->mtu = new_mtu; |
|
2302 |
return 0; |
|
2303 |
} |
|
2304 |
||
2305 |
static int e100_asf(struct nic *nic) |
|
2306 |
{
|
|
2307 |
/* ASF can be enabled from eeprom */ |
|
2308 |
return((nic->pdev->device >= 0x1050) && (nic->pdev->device <= 0x1057) && |
|
2309 |
(nic->eeprom[eeprom_config_asf] & eeprom_asf) && |
|
2310 |
!(nic->eeprom[eeprom_config_asf] & eeprom_gcl) && |
|
2311 |
((nic->eeprom[eeprom_smbus_addr] & 0xFF) != 0xFE)); |
|
2312 |
} |
|
2313 |
||
2314 |
static int e100_up(struct nic *nic) |
|
2315 |
{
|
|
2316 |
int err; |
|
2317 |
||
2318 |
if ((err = e100_rx_alloc_list(nic))) |
|
2319 |
return err; |
|
2320 |
if ((err = e100_alloc_cbs(nic))) |
|
2321 |
goto err_rx_clean_list; |
|
2322 |
if ((err = e100_hw_init(nic))) |
|
2323 |
goto err_clean_cbs; |
|
2324 |
e100_set_multicast_list(nic->netdev); |
|
2325 |
e100_start_receiver(nic, NULL); |
|
2326 |
if (!nic->ecdev) {
|
|
2327 |
mod_timer(&nic->watchdog, jiffies); |
|
2328 |
} |
|
2329 |
if ((err = request_irq(nic->pdev->irq, e100_intr, IRQF_SHARED, |
|
2330 |
nic->netdev->name, nic->netdev))) |
|
2331 |
goto err_no_irq; |
|
2332 |
if (!nic->ecdev) {
|
|
2333 |
netif_wake_queue(nic->netdev); |
|
2334 |
napi_enable(&nic->napi); |
|
2335 |
/* enable ints _after_ enabling poll, preventing a race between |
|
2336 |
* disable ints+schedule */ |
|
2337 |
e100_enable_irq(nic); |
|
2338 |
} |
|
2339 |
return 0; |
|
2340 |
||
2341 |
err_no_irq: |
|
2342 |
if (!nic->ecdev) |
|
2343 |
del_timer_sync(&nic->watchdog); |
|
2344 |
err_clean_cbs: |
|
2345 |
e100_clean_cbs(nic); |
|
2346 |
err_rx_clean_list: |
|
2347 |
e100_rx_clean_list(nic); |
|
2348 |
return err; |
|
2349 |
} |
|
2350 |
||
2351 |
static void e100_down(struct nic *nic) |
|
2352 |
{
|
|
2353 |
if (!nic->ecdev) {
|
|
2354 |
/* wait here for poll to complete */ |
|
2355 |
napi_disable(&nic->napi); |
|
2356 |
netif_stop_queue(nic->netdev); |
|
2357 |
} |
|
2358 |
e100_hw_reset(nic); |
|
2359 |
free_irq(nic->pdev->irq, nic->netdev); |
|
2360 |
if (!nic->ecdev) {
|
|
2361 |
del_timer_sync(&nic->watchdog); |
|
2362 |
netif_carrier_off(nic->netdev); |
|
2363 |
} |
|
2364 |
e100_clean_cbs(nic); |
|
2365 |
e100_rx_clean_list(nic); |
|
2366 |
} |
|
2367 |
||
2368 |
static void e100_tx_timeout(struct net_device *netdev) |
|
2369 |
{
|
|
2370 |
struct nic *nic = netdev_priv(netdev); |
|
2371 |
||
2372 |
/* Reset outside of interrupt context, to avoid request_irq |
|
2373 |
* in interrupt context */ |
|
2374 |
schedule_work(&nic->tx_timeout_task); |
|
2375 |
} |
|
2376 |
||
2377 |
static void e100_tx_timeout_task(struct work_struct *work) |
|
2378 |
{
|
|
2379 |
struct nic *nic = container_of(work, struct nic, tx_timeout_task); |
|
2380 |
struct net_device *netdev = nic->netdev; |
|
2381 |
||
2382 |
DPRINTK(TX_ERR, DEBUG, "scb.status=0x%02X\n", |
|
2383 |
ioread8(&nic->csr->scb.status)); |
|
2384 |
e100_down(netdev_priv(netdev)); |
|
2385 |
e100_up(netdev_priv(netdev)); |
|
2386 |
} |
|
2387 |
||
2388 |
static int e100_loopback_test(struct nic *nic, enum loopback loopback_mode) |
|
2389 |
{
|
|
2390 |
int err; |
|
2391 |
struct sk_buff *skb; |
|
2392 |
||
2393 |
/* Use driver resources to perform internal MAC or PHY |
|
2394 |
* loopback test. A single packet is prepared and transmitted |
|
2395 |
* in loopback mode, and the test passes if the received |
|
2396 |
* packet compares byte-for-byte to the transmitted packet. */ |
|
2397 |
||
2398 |
if ((err = e100_rx_alloc_list(nic))) |
|
2399 |
return err; |
|
2400 |
if ((err = e100_alloc_cbs(nic))) |
|
2401 |
goto err_clean_rx; |
|
2402 |
||
2403 |
/* ICH PHY loopback is broken so do MAC loopback instead */ |
|
2404 |
if (nic->flags & ich && loopback_mode == lb_phy) |
|
2405 |
loopback_mode = lb_mac; |
|
2406 |
||
2407 |
nic->loopback = loopback_mode; |
|
2408 |
if ((err = e100_hw_init(nic))) |
|
2409 |
goto err_loopback_none; |
|
2410 |
||
2411 |
if (loopback_mode == lb_phy) |
|
2412 |
mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR, |
|
2413 |
BMCR_LOOPBACK); |
|
2414 |
||
2415 |
e100_start_receiver(nic, NULL); |
|
2416 |
||
2417 |
if (!(skb = netdev_alloc_skb(nic->netdev, ETH_DATA_LEN))) {
|
|
2418 |
err = -ENOMEM; |
|
2419 |
goto err_loopback_none; |
|
2420 |
} |
|
2421 |
skb_put(skb, ETH_DATA_LEN); |
|
2422 |
memset(skb->data, 0xFF, ETH_DATA_LEN); |
|
2423 |
e100_xmit_frame(skb, nic->netdev); |
|
2424 |
||
2425 |
msleep(10); |
|
2426 |
||
2427 |
pci_dma_sync_single_for_cpu(nic->pdev, nic->rx_to_clean->dma_addr, |
|
2428 |
RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); |
|
2429 |
||
2430 |
if (memcmp(nic->rx_to_clean->skb->data + sizeof(struct rfd), |
|
2431 |
skb->data, ETH_DATA_LEN)) |
|
2432 |
err = -EAGAIN; |
|
2433 |
||
2434 |
err_loopback_none: |
|
2435 |
mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR, 0); |
|
2436 |
nic->loopback = lb_none; |
|
2437 |
e100_clean_cbs(nic); |
|
2438 |
e100_hw_reset(nic); |
|
2439 |
err_clean_rx: |
|
2440 |
e100_rx_clean_list(nic); |
|
2441 |
return err; |
|
2442 |
} |
|
2443 |
||
2444 |
#define MII_LED_CONTROL 0x1B |
|
2445 |
#define E100_82552_LED_OVERRIDE 0x19 |
|
2446 |
#define E100_82552_LED_ON 0x000F /* LEDTX and LED_RX both on */ |
|
2447 |
#define E100_82552_LED_OFF 0x000A /* LEDTX and LED_RX both off */ |
|
2448 |
static void e100_blink_led(unsigned long data) |
|
2449 |
{
|
|
2450 |
struct nic *nic = (struct nic *)data; |
|
2451 |
enum led_state {
|
|
2452 |
led_on = 0x01, |
|
2453 |
led_off = 0x04, |
|
2454 |
led_on_559 = 0x05, |
|
2455 |
led_on_557 = 0x07, |
|
2456 |
}; |
|
2457 |
u16 led_reg = MII_LED_CONTROL; |
|
2458 |
||
2459 |
if (nic->phy == phy_82552_v) {
|
|
2460 |
led_reg = E100_82552_LED_OVERRIDE; |
|
2461 |
||
2462 |
nic->leds = (nic->leds == E100_82552_LED_ON) ? |
|
2463 |
E100_82552_LED_OFF : E100_82552_LED_ON; |
|
2464 |
} else {
|
|
2465 |
nic->leds = (nic->leds & led_on) ? led_off : |
|
2466 |
(nic->mac < mac_82559_D101M) ? led_on_557 : |
|
2467 |
led_on_559; |
|
2468 |
} |
|
2469 |
mdio_write(nic->netdev, nic->mii.phy_id, led_reg, nic->leds); |
|
2470 |
mod_timer(&nic->blink_timer, jiffies + HZ / 4); |
|
2471 |
} |
|
2472 |
||
2473 |
static int e100_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd) |
|
2474 |
{
|
|
2475 |
struct nic *nic = netdev_priv(netdev); |
|
2476 |
return mii_ethtool_gset(&nic->mii, cmd); |
|
2477 |
} |
|
2478 |
||
2479 |
static int e100_set_settings(struct net_device *netdev, struct ethtool_cmd *cmd) |
|
2480 |
{
|
|
2481 |
struct nic *nic = netdev_priv(netdev); |
|
2482 |
int err; |
|
2483 |
||
2484 |
mdio_write(netdev, nic->mii.phy_id, MII_BMCR, BMCR_RESET); |
|
2485 |
err = mii_ethtool_sset(&nic->mii, cmd); |
|
2486 |
e100_exec_cb(nic, NULL, e100_configure); |
|
2487 |
||
2488 |
return err; |
|
2489 |
} |
|
2490 |
||
2491 |
static void e100_get_drvinfo(struct net_device *netdev, |
|
2492 |
struct ethtool_drvinfo *info) |
|
2493 |
{
|
|
2494 |
struct nic *nic = netdev_priv(netdev); |
|
2495 |
strcpy(info->driver, DRV_NAME); |
|
2496 |
strcpy(info->version, DRV_VERSION); |
|
2497 |
strcpy(info->fw_version, "N/A"); |
|
2498 |
strcpy(info->bus_info, pci_name(nic->pdev)); |
|
2499 |
} |
|
2500 |
||
2501 |
#define E100_PHY_REGS 0x1C |
|
2502 |
static int e100_get_regs_len(struct net_device *netdev) |
|
2503 |
{
|
|
2504 |
struct nic *nic = netdev_priv(netdev); |
|
2505 |
return 1 + E100_PHY_REGS + sizeof(nic->mem->dump_buf); |
|
2506 |
} |
|
2507 |
||
2508 |
static void e100_get_regs(struct net_device *netdev, |
|
2509 |
struct ethtool_regs *regs, void *p) |
|
2510 |
{
|
|
2511 |
struct nic *nic = netdev_priv(netdev); |
|
2512 |
u32 *buff = p; |
|
2513 |
int i; |
|
2514 |
||
2515 |
regs->version = (1 << 24) | nic->pdev->revision; |
|
2516 |
buff[0] = ioread8(&nic->csr->scb.cmd_hi) << 24 | |
|
2517 |
ioread8(&nic->csr->scb.cmd_lo) << 16 | |
|
2518 |
ioread16(&nic->csr->scb.status); |
|
2519 |
for (i = E100_PHY_REGS; i >= 0; i--) |
|
2520 |
buff[1 + E100_PHY_REGS - i] = |
|
2521 |
mdio_read(netdev, nic->mii.phy_id, i); |
|
2522 |
memset(nic->mem->dump_buf, 0, sizeof(nic->mem->dump_buf)); |
|
2523 |
e100_exec_cb(nic, NULL, e100_dump); |
|
2524 |
msleep(10); |
|
2525 |
memcpy(&buff[2 + E100_PHY_REGS], nic->mem->dump_buf, |
|
2526 |
sizeof(nic->mem->dump_buf)); |
|
2527 |
} |
|
2528 |
||
2529 |
static void e100_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
|
2530 |
{
|
|
2531 |
struct nic *nic = netdev_priv(netdev); |
|
2532 |
wol->supported = (nic->mac >= mac_82558_D101_A4) ? WAKE_MAGIC : 0; |
|
2533 |
wol->wolopts = (nic->flags & wol_magic) ? WAKE_MAGIC : 0; |
|
2534 |
} |
|
2535 |
||
2536 |
static int e100_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
|
2537 |
{
|
|
2538 |
struct nic *nic = netdev_priv(netdev); |
|
2539 |
||
2540 |
if ((wol->wolopts && wol->wolopts != WAKE_MAGIC) || |
|
2541 |
!device_can_wakeup(&nic->pdev->dev)) |
|
2542 |
return -EOPNOTSUPP; |
|
2543 |
||
2544 |
if (wol->wolopts) |
|
2545 |
nic->flags |= wol_magic; |
|
2546 |
else |
|
2547 |
nic->flags &= ~wol_magic; |
|
2548 |
||
2549 |
device_set_wakeup_enable(&nic->pdev->dev, wol->wolopts); |
|
2550 |
||
2551 |
e100_exec_cb(nic, NULL, e100_configure); |
|
2552 |
||
2553 |
return 0; |
|
2554 |
} |
|
2555 |
||
2556 |
static u32 e100_get_msglevel(struct net_device *netdev) |
|
2557 |
{
|
|
2558 |
struct nic *nic = netdev_priv(netdev); |
|
2559 |
return nic->msg_enable; |
|
2560 |
} |
|
2561 |
||
2562 |
static void e100_set_msglevel(struct net_device *netdev, u32 value) |
|
2563 |
{
|
|
2564 |
struct nic *nic = netdev_priv(netdev); |
|
2565 |
nic->msg_enable = value; |
|
2566 |
} |
|
2567 |
||
2568 |
static int e100_nway_reset(struct net_device *netdev) |
|
2569 |
{
|
|
2570 |
struct nic *nic = netdev_priv(netdev); |
|
2571 |
return mii_nway_restart(&nic->mii); |
|
2572 |
} |
|
2573 |
||
2574 |
static u32 e100_get_link(struct net_device *netdev) |
|
2575 |
{
|
|
2576 |
struct nic *nic = netdev_priv(netdev); |
|
2577 |
return mii_link_ok(&nic->mii); |
|
2578 |
} |
|
2579 |
||
2580 |
static int e100_get_eeprom_len(struct net_device *netdev) |
|
2581 |
{
|
|
2582 |
struct nic *nic = netdev_priv(netdev); |
|
2583 |
return nic->eeprom_wc << 1; |
|
2584 |
} |
|
2585 |
||
2586 |
#define E100_EEPROM_MAGIC 0x1234 |
|
2587 |
static int e100_get_eeprom(struct net_device *netdev, |
|
2588 |
struct ethtool_eeprom *eeprom, u8 *bytes) |
|
2589 |
{
|
|
2590 |
struct nic *nic = netdev_priv(netdev); |
|
2591 |
||
2592 |
eeprom->magic = E100_EEPROM_MAGIC; |
|
2593 |
memcpy(bytes, &((u8 *)nic->eeprom)[eeprom->offset], eeprom->len); |
|
2594 |
||
2595 |
return 0; |
|
2596 |
} |
|
2597 |
||
2598 |
static int e100_set_eeprom(struct net_device *netdev, |
|
2599 |
struct ethtool_eeprom *eeprom, u8 *bytes) |
|
2600 |
{
|
|
2601 |
struct nic *nic = netdev_priv(netdev); |
|
2602 |
||
2603 |
if (eeprom->magic != E100_EEPROM_MAGIC) |
|
2604 |
return -EINVAL; |
|
2605 |
||
2606 |
memcpy(&((u8 *)nic->eeprom)[eeprom->offset], bytes, eeprom->len); |
|
2607 |
||
2608 |
return e100_eeprom_save(nic, eeprom->offset >> 1, |
|
2609 |
(eeprom->len >> 1) + 1); |
|
2610 |
} |
|
2611 |
||
2612 |
static void e100_get_ringparam(struct net_device *netdev, |
|
2613 |
struct ethtool_ringparam *ring) |
|
2614 |
{
|
|
2615 |
struct nic *nic = netdev_priv(netdev); |
|
2616 |
struct param_range *rfds = &nic->params.rfds; |
|
2617 |
struct param_range *cbs = &nic->params.cbs; |
|
2618 |
||
2619 |
ring->rx_max_pending = rfds->max; |
|
2620 |
ring->tx_max_pending = cbs->max; |
|
2621 |
ring->rx_mini_max_pending = 0; |
|
2622 |
ring->rx_jumbo_max_pending = 0; |
|
2623 |
ring->rx_pending = rfds->count; |
|
2624 |
ring->tx_pending = cbs->count; |
|
2625 |
ring->rx_mini_pending = 0; |
|
2626 |
ring->rx_jumbo_pending = 0; |
|
2627 |
} |
|
2628 |
||
2629 |
static int e100_set_ringparam(struct net_device *netdev, |
|
2630 |
struct ethtool_ringparam *ring) |
|
2631 |
{
|
|
2632 |
struct nic *nic = netdev_priv(netdev); |
|
2633 |
struct param_range *rfds = &nic->params.rfds; |
|
2634 |
struct param_range *cbs = &nic->params.cbs; |
|
2635 |
||
2636 |
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) |
|
2637 |
return -EINVAL; |
|
2638 |
||
2639 |
if (netif_running(netdev)) |
|
2640 |
e100_down(nic); |
|
2641 |
rfds->count = max(ring->rx_pending, rfds->min); |
|
2642 |
rfds->count = min(rfds->count, rfds->max); |
|
2643 |
cbs->count = max(ring->tx_pending, cbs->min); |
|
2644 |
cbs->count = min(cbs->count, cbs->max); |
|
2645 |
DPRINTK(DRV, INFO, "Ring Param settings: rx: %d, tx %d\n", |
|
2646 |
rfds->count, cbs->count); |
|
2647 |
if (netif_running(netdev)) |
|
2648 |
e100_up(nic); |
|
2649 |
||
2650 |
return 0; |
|
2651 |
} |
|
2652 |
||
2653 |
static const char e100_gstrings_test[][ETH_GSTRING_LEN] = {
|
|
2654 |
"Link test (on/offline)", |
|
2655 |
"Eeprom test (on/offline)", |
|
2656 |
"Self test (offline)", |
|
2657 |
"Mac loopback (offline)", |
|
2658 |
"Phy loopback (offline)", |
|
2659 |
}; |
|
2660 |
#define E100_TEST_LEN ARRAY_SIZE(e100_gstrings_test) |
|
2661 |
||
2662 |
static void e100_diag_test(struct net_device *netdev, |
|
2663 |
struct ethtool_test *test, u64 *data) |
|
2664 |
{
|
|
2665 |
struct ethtool_cmd cmd; |
|
2666 |
struct nic *nic = netdev_priv(netdev); |
|
2667 |
int i, err; |
|
2668 |
||
2669 |
memset(data, 0, E100_TEST_LEN * sizeof(u64)); |
|
2670 |
data[0] = !mii_link_ok(&nic->mii); |
|
2671 |
data[1] = e100_eeprom_load(nic); |
|
2672 |
if (test->flags & ETH_TEST_FL_OFFLINE) {
|
|
2673 |
||
2674 |
/* save speed, duplex & autoneg settings */ |
|
2675 |
err = mii_ethtool_gset(&nic->mii, &cmd); |
|
2676 |
||
2677 |
if (netif_running(netdev)) |
|
2678 |
e100_down(nic); |
|
2679 |
data[2] = e100_self_test(nic); |
|
2680 |
data[3] = e100_loopback_test(nic, lb_mac); |
|
2681 |
data[4] = e100_loopback_test(nic, lb_phy); |
|
2682 |
||
2683 |
/* restore speed, duplex & autoneg settings */ |
|
2684 |
err = mii_ethtool_sset(&nic->mii, &cmd); |
|
2685 |
||
2686 |
if (netif_running(netdev)) |
|
2687 |
e100_up(nic); |
|
2688 |
} |
|
2689 |
for (i = 0; i < E100_TEST_LEN; i++) |
|
2690 |
test->flags |= data[i] ? ETH_TEST_FL_FAILED : 0; |
|
2691 |
||
2692 |
msleep_interruptible(4 * 1000); |
|
2693 |
} |
|
2694 |
||
2695 |
static int e100_phys_id(struct net_device *netdev, u32 data) |
|
2696 |
{
|
|
2697 |
struct nic *nic = netdev_priv(netdev); |
|
2698 |
u16 led_reg = (nic->phy == phy_82552_v) ? E100_82552_LED_OVERRIDE : |
|
2699 |
MII_LED_CONTROL; |
|
2700 |
||
2701 |
if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ)) |
|
2702 |
data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ); |
|
2703 |
mod_timer(&nic->blink_timer, jiffies); |
|
2704 |
msleep_interruptible(data * 1000); |
|
2705 |
del_timer_sync(&nic->blink_timer); |
|
2706 |
mdio_write(netdev, nic->mii.phy_id, led_reg, 0); |
|
2707 |
||
2708 |
return 0; |
|
2709 |
} |
|
2710 |
||
2711 |
static const char e100_gstrings_stats[][ETH_GSTRING_LEN] = {
|
|
2712 |
"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors", |
|
2713 |
"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions", |
|
2714 |
"rx_length_errors", "rx_over_errors", "rx_crc_errors", |
|
2715 |
"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors", |
|
2716 |
"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors", |
|
2717 |
"tx_heartbeat_errors", "tx_window_errors", |
|
2718 |
/* device-specific stats */ |
|
2719 |
"tx_deferred", "tx_single_collisions", "tx_multi_collisions", |
|
2720 |
"tx_flow_control_pause", "rx_flow_control_pause", |
|
2721 |
"rx_flow_control_unsupported", "tx_tco_packets", "rx_tco_packets", |
|
2722 |
}; |
|
2723 |
#define E100_NET_STATS_LEN 21 |
|
2724 |
#define E100_STATS_LEN ARRAY_SIZE(e100_gstrings_stats) |
|
2725 |
||
2726 |
static int e100_get_sset_count(struct net_device *netdev, int sset) |
|
2727 |
{
|
|
2728 |
switch (sset) {
|
|
2729 |
case ETH_SS_TEST: |
|
2730 |
return E100_TEST_LEN; |
|
2731 |
case ETH_SS_STATS: |
|
2732 |
return E100_STATS_LEN; |
|
2733 |
default: |
|
2734 |
return -EOPNOTSUPP; |
|
2735 |
} |
|
2736 |
} |
|
2737 |
||
2738 |
static void e100_get_ethtool_stats(struct net_device *netdev, |
|
2739 |
struct ethtool_stats *stats, u64 *data) |
|
2740 |
{
|
|
2741 |
struct nic *nic = netdev_priv(netdev); |
|
2742 |
int i; |
|
2743 |
||
2744 |
for (i = 0; i < E100_NET_STATS_LEN; i++) |
|
2745 |
data[i] = ((unsigned long *)&netdev->stats)[i]; |
|
2746 |
||
2747 |
data[i++] = nic->tx_deferred; |
|
2748 |
data[i++] = nic->tx_single_collisions; |
|
2749 |
data[i++] = nic->tx_multiple_collisions; |
|
2750 |
data[i++] = nic->tx_fc_pause; |
|
2751 |
data[i++] = nic->rx_fc_pause; |
|
2752 |
data[i++] = nic->rx_fc_unsupported; |
|
2753 |
data[i++] = nic->tx_tco_frames; |
|
2754 |
data[i++] = nic->rx_tco_frames; |
|
2755 |
} |
|
2756 |
||
2757 |
static void e100_get_strings(struct net_device *netdev, u32 stringset, u8 *data) |
|
2758 |
{
|
|
2759 |
switch (stringset) {
|
|
2760 |
case ETH_SS_TEST: |
|
2761 |
memcpy(data, *e100_gstrings_test, sizeof(e100_gstrings_test)); |
|
2762 |
break; |
|
2763 |
case ETH_SS_STATS: |
|
2764 |
memcpy(data, *e100_gstrings_stats, sizeof(e100_gstrings_stats)); |
|
2765 |
break; |
|
2766 |
} |
|
2767 |
} |
|
2768 |
||
2769 |
static const struct ethtool_ops e100_ethtool_ops = {
|
|
2770 |
.get_settings = e100_get_settings, |
|
2771 |
.set_settings = e100_set_settings, |
|
2772 |
.get_drvinfo = e100_get_drvinfo, |
|
2773 |
.get_regs_len = e100_get_regs_len, |
|
2774 |
.get_regs = e100_get_regs, |
|
2775 |
.get_wol = e100_get_wol, |
|
2776 |
.set_wol = e100_set_wol, |
|
2777 |
.get_msglevel = e100_get_msglevel, |
|
2778 |
.set_msglevel = e100_set_msglevel, |
|
2779 |
.nway_reset = e100_nway_reset, |
|
2780 |
.get_link = e100_get_link, |
|
2781 |
.get_eeprom_len = e100_get_eeprom_len, |
|
2782 |
.get_eeprom = e100_get_eeprom, |
|
2783 |
.set_eeprom = e100_set_eeprom, |
|
2784 |
.get_ringparam = e100_get_ringparam, |
|
2785 |
.set_ringparam = e100_set_ringparam, |
|
2786 |
.self_test = e100_diag_test, |
|
2787 |
.get_strings = e100_get_strings, |
|
2788 |
.phys_id = e100_phys_id, |
|
2789 |
.get_ethtool_stats = e100_get_ethtool_stats, |
|
2790 |
.get_sset_count = e100_get_sset_count, |
|
2791 |
}; |
|
2792 |
||
2793 |
static int e100_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
|
2794 |
{
|
|
2795 |
struct nic *nic = netdev_priv(netdev); |
|
2796 |
||
2797 |
return generic_mii_ioctl(&nic->mii, if_mii(ifr), cmd, NULL); |
|
2798 |
} |
|
2799 |
||
2800 |
static int e100_alloc(struct nic *nic) |
|
2801 |
{
|
|
2802 |
nic->mem = pci_alloc_consistent(nic->pdev, sizeof(struct mem), |
|
2803 |
&nic->dma_addr); |
|
2804 |
return nic->mem ? 0 : -ENOMEM; |
|
2805 |
} |
|
2806 |
||
2807 |
static void e100_free(struct nic *nic) |
|
2808 |
{
|
|
2809 |
if (nic->mem) {
|
|
2810 |
pci_free_consistent(nic->pdev, sizeof(struct mem), |
|
2811 |
nic->mem, nic->dma_addr); |
|
2812 |
nic->mem = NULL; |
|
2813 |
} |
|
2814 |
} |
|
2815 |
||
2816 |
static int e100_open(struct net_device *netdev) |
|
2817 |
{
|
|
2818 |
struct nic *nic = netdev_priv(netdev); |
|
2819 |
int err = 0; |
|
2820 |
||
2821 |
if (!nic->ecdev) |
|
2822 |
netif_carrier_off(netdev); |
|
2823 |
if ((err = e100_up(nic))) |
|
2824 |
DPRINTK(IFUP, ERR, "Cannot open interface, aborting.\n"); |
|
2825 |
return err; |
|
2826 |
} |
|
2827 |
||
2828 |
static int e100_close(struct net_device *netdev) |
|
2829 |
{
|
|
2830 |
e100_down(netdev_priv(netdev)); |
|
2831 |
return 0; |
|
2832 |
} |
|
2833 |
||
2834 |
static const struct net_device_ops e100_netdev_ops = {
|
|
2835 |
.ndo_open = e100_open, |
|
2836 |
.ndo_stop = e100_close, |
|
2837 |
.ndo_start_xmit = e100_xmit_frame, |
|
2838 |
.ndo_validate_addr = eth_validate_addr, |
|
2839 |
.ndo_set_multicast_list = e100_set_multicast_list, |
|
2840 |
.ndo_set_mac_address = e100_set_mac_address, |
|
2841 |
.ndo_change_mtu = e100_change_mtu, |
|
2842 |
.ndo_do_ioctl = e100_do_ioctl, |
|
2843 |
.ndo_tx_timeout = e100_tx_timeout, |
|
2844 |
#ifdef CONFIG_NET_POLL_CONTROLLER |
|
2845 |
.ndo_poll_controller = e100_netpoll, |
|
2846 |
#endif |
|
2847 |
}; |
|
2848 |
||
2849 |
static int __devinit e100_probe(struct pci_dev *pdev, |
|
2850 |
const struct pci_device_id *ent) |
|
2851 |
{
|
|
2852 |
struct net_device *netdev; |
|
2853 |
struct nic *nic; |
|
2854 |
int err; |
|
2855 |
||
2856 |
if (!(netdev = alloc_etherdev(sizeof(struct nic)))) {
|
|
2857 |
if (((1 << debug) - 1) & NETIF_MSG_PROBE) |
|
2858 |
printk(KERN_ERR PFX "Etherdev alloc failed, abort.\n"); |
|
2859 |
return -ENOMEM; |
|
2860 |
} |
|
2861 |
||
2862 |
netdev->netdev_ops = &e100_netdev_ops; |
|
2863 |
SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops); |
|
2864 |
netdev->watchdog_timeo = E100_WATCHDOG_PERIOD; |
|
2865 |
strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
|
2866 |
||
2867 |
nic = netdev_priv(netdev); |
|
2868 |
netif_napi_add(netdev, &nic->napi, e100_poll, E100_NAPI_WEIGHT); |
|
2869 |
nic->netdev = netdev; |
|
2870 |
nic->pdev = pdev; |
|
2871 |
nic->msg_enable = (1 << debug) - 1; |
|
2872 |
nic->mdio_ctrl = mdio_ctrl_hw; |
|
2873 |
pci_set_drvdata(pdev, netdev); |
|
2874 |
||
2875 |
if ((err = pci_enable_device(pdev))) {
|
|
2876 |
DPRINTK(PROBE, ERR, "Cannot enable PCI device, aborting.\n"); |
|
2877 |
goto err_out_free_dev; |
|
2878 |
} |
|
2879 |
||
2880 |
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
|
|
2881 |
DPRINTK(PROBE, ERR, "Cannot find proper PCI device " |
|
2882 |
"base address, aborting.\n"); |
|
2883 |
err = -ENODEV; |
|
2884 |
goto err_out_disable_pdev; |
|
2885 |
} |
|
2886 |
||
2887 |
if ((err = pci_request_regions(pdev, DRV_NAME))) {
|
|
2888 |
DPRINTK(PROBE, ERR, "Cannot obtain PCI resources, aborting.\n"); |
|
2889 |
goto err_out_disable_pdev; |
|
2890 |
} |
|
2891 |
||
2892 |
if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
|
|
2893 |
DPRINTK(PROBE, ERR, "No usable DMA configuration, aborting.\n"); |
|
2894 |
goto err_out_free_res; |
|
2895 |
} |
|
2896 |
||
2897 |
SET_NETDEV_DEV(netdev, &pdev->dev); |
|
2898 |
||
2899 |
if (use_io) |
|
2900 |
DPRINTK(PROBE, INFO, "using i/o access mode\n"); |
|
2901 |
||
2902 |
nic->csr = pci_iomap(pdev, (use_io ? 1 : 0), sizeof(struct csr)); |
|
2903 |
if (!nic->csr) {
|
|
2904 |
DPRINTK(PROBE, ERR, "Cannot map device registers, aborting.\n"); |
|
2905 |
err = -ENOMEM; |
|
2906 |
goto err_out_free_res; |
|
2907 |
} |
|
2908 |
||
2909 |
if (ent->driver_data) |
|
2910 |
nic->flags |= ich; |
|
2911 |
else |
|
2912 |
nic->flags &= ~ich; |
|
2913 |
||
2914 |
e100_get_defaults(nic); |
|
2915 |
||
2916 |
/* locks must be initialized before calling hw_reset */ |
|
2917 |
spin_lock_init(&nic->cb_lock); |
|
2918 |
spin_lock_init(&nic->cmd_lock); |
|
2919 |
spin_lock_init(&nic->mdio_lock); |
|
2920 |
||
2921 |
/* Reset the device before pci_set_master() in case device is in some |
|
2922 |
* funky state and has an interrupt pending - hint: we don't have the |
|
2923 |
* interrupt handler registered yet. */ |
|
2924 |
e100_hw_reset(nic); |
|
2925 |
||
2926 |
pci_set_master(pdev); |
|
2927 |
||
2928 |
init_timer(&nic->watchdog); |
|
2929 |
nic->watchdog.function = e100_watchdog; |
|
2930 |
nic->watchdog.data = (unsigned long)nic; |
|
2931 |
init_timer(&nic->blink_timer); |
|
2932 |
nic->blink_timer.function = e100_blink_led; |
|
2933 |
nic->blink_timer.data = (unsigned long)nic; |
|
2934 |
||
2935 |
INIT_WORK(&nic->tx_timeout_task, e100_tx_timeout_task); |
|
2936 |
||
2937 |
if ((err = e100_alloc(nic))) {
|
|
2938 |
DPRINTK(PROBE, ERR, "Cannot alloc driver memory, aborting.\n"); |
|
2939 |
goto err_out_iounmap; |
|
2940 |
} |
|
2941 |
||
2942 |
if ((err = e100_eeprom_load(nic))) |
|
2943 |
goto err_out_free; |
|
2944 |
||
2945 |
e100_phy_init(nic); |
|
2946 |
||
2947 |
memcpy(netdev->dev_addr, nic->eeprom, ETH_ALEN); |
|
2948 |
memcpy(netdev->perm_addr, nic->eeprom, ETH_ALEN); |
|
2949 |
if (!is_valid_ether_addr(netdev->perm_addr)) {
|
|
2950 |
if (!eeprom_bad_csum_allow) {
|
|
2951 |
DPRINTK(PROBE, ERR, "Invalid MAC address from " |
|
2952 |
"EEPROM, aborting.\n"); |
|
2953 |
err = -EAGAIN; |
|
2954 |
goto err_out_free; |
|
2955 |
} else {
|
|
2956 |
DPRINTK(PROBE, ERR, "Invalid MAC address from EEPROM, " |
|
2957 |
"you MUST configure one.\n"); |
|
2958 |
} |
|
2959 |
} |
|
2960 |
||
2961 |
/* Wol magic packet can be enabled from eeprom */ |
|
2962 |
if ((nic->mac >= mac_82558_D101_A4) && |
|
2963 |
(nic->eeprom[eeprom_id] & eeprom_id_wol)) {
|
|
2964 |
nic->flags |= wol_magic; |
|
2965 |
device_set_wakeup_enable(&pdev->dev, true); |
|
2966 |
} |
|
2967 |
||
2968 |
/* ack any pending wake events, disable PME */ |
|
2969 |
pci_pme_active(pdev, false); |
|
2970 |
||
2971 |
// offer device to EtherCAT master module |
|
2972 |
nic->ecdev = ecdev_offer(netdev, e100_ec_poll, THIS_MODULE); |
|
2973 |
if (nic->ecdev) {
|
|
|
2582
87e502828b3f
Use return value of ecdev_open(); thanks to Patrick Bruenn.
Florian Pose <fp@igh-essen.com>
parents:
2421
diff
changeset
|
2974 |
err = ecdev_open(nic->ecdev); |
|
87e502828b3f
Use return value of ecdev_open(); thanks to Patrick Bruenn.
Florian Pose <fp@igh-essen.com>
parents:
2421
diff
changeset
|
2975 |
if (err) {
|
| 1812 | 2976 |
ecdev_withdraw(nic->ecdev); |
2977 |
goto err_out_free; |
|
2978 |
} |
|
2979 |
} else {
|
|
2980 |
strcpy(netdev->name, "eth%d"); |
|
2981 |
if((err = register_netdev(netdev))) {
|
|
2982 |
DPRINTK(PROBE, ERR, "Cannot register net device, aborting.\n"); |
|
2983 |
goto err_out_free; |
|
2984 |
} |
|
2985 |
} |
|
2986 |
||
2987 |
DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, MAC addr %pM\n", |
|
2988 |
(unsigned long long)pci_resource_start(pdev, use_io ? 1 : 0), |
|
2989 |
pdev->irq, netdev->dev_addr); |
|
2990 |
||
2991 |
return 0; |
|
2992 |
||
2993 |
err_out_free: |
|
2994 |
e100_free(nic); |
|
2995 |
err_out_iounmap: |
|
2996 |
pci_iounmap(pdev, nic->csr); |
|
2997 |
err_out_free_res: |
|
2998 |
pci_release_regions(pdev); |
|
2999 |
err_out_disable_pdev: |
|
3000 |
pci_disable_device(pdev); |
|
3001 |
err_out_free_dev: |
|
3002 |
pci_set_drvdata(pdev, NULL); |
|
3003 |
free_netdev(netdev); |
|
3004 |
return err; |
|
3005 |
} |
|
3006 |
||
3007 |
static void __devexit e100_remove(struct pci_dev *pdev) |
|
3008 |
{
|
|
3009 |
struct net_device *netdev = pci_get_drvdata(pdev); |
|
3010 |
||
3011 |
if (netdev) {
|
|
3012 |
struct nic *nic = netdev_priv(netdev); |
|
3013 |
if (nic->ecdev) {
|
|
3014 |
ecdev_close(nic->ecdev); |
|
3015 |
ecdev_withdraw(nic->ecdev); |
|
3016 |
} else {
|
|
3017 |
unregister_netdev(netdev); |
|
3018 |
} |
|
3019 |
||
3020 |
e100_free(nic); |
|
3021 |
pci_iounmap(pdev, nic->csr); |
|
3022 |
free_netdev(netdev); |
|
3023 |
pci_release_regions(pdev); |
|
3024 |
pci_disable_device(pdev); |
|
3025 |
pci_set_drvdata(pdev, NULL); |
|
3026 |
} |
|
3027 |
} |
|
3028 |
||
3029 |
#define E100_82552_SMARTSPEED 0x14 /* SmartSpeed Ctrl register */ |
|
3030 |
#define E100_82552_REV_ANEG 0x0200 /* Reverse auto-negotiation */ |
|
3031 |
#define E100_82552_ANEG_NOW 0x0400 /* Auto-negotiate now */ |
|
3032 |
static void __e100_shutdown(struct pci_dev *pdev, bool *enable_wake) |
|
3033 |
{
|
|
3034 |
struct net_device *netdev = pci_get_drvdata(pdev); |
|
3035 |
struct nic *nic = netdev_priv(netdev); |
|
3036 |
||
3037 |
if (netif_running(netdev)) |
|
3038 |
e100_down(nic); |
|
3039 |
netif_device_detach(netdev); |
|
3040 |
||
3041 |
pci_save_state(pdev); |
|
3042 |
||
3043 |
if ((nic->flags & wol_magic) | e100_asf(nic)) {
|
|
3044 |
/* enable reverse auto-negotiation */ |
|
3045 |
if (nic->phy == phy_82552_v) {
|
|
3046 |
u16 smartspeed = mdio_read(netdev, nic->mii.phy_id, |
|
3047 |
E100_82552_SMARTSPEED); |
|
3048 |
||
3049 |
mdio_write(netdev, nic->mii.phy_id, |
|
3050 |
E100_82552_SMARTSPEED, smartspeed | |
|
3051 |
E100_82552_REV_ANEG | E100_82552_ANEG_NOW); |
|
3052 |
} |
|
3053 |
*enable_wake = true; |
|
3054 |
} else {
|
|
3055 |
*enable_wake = false; |
|
3056 |
} |
|
3057 |
||
3058 |
pci_disable_device(pdev); |
|
3059 |
} |
|
3060 |
||
3061 |
static int __e100_power_off(struct pci_dev *pdev, bool wake) |
|
3062 |
{
|
|
3063 |
if (wake) |
|
3064 |
return pci_prepare_to_sleep(pdev); |
|
3065 |
||
3066 |
pci_wake_from_d3(pdev, false); |
|
3067 |
pci_set_power_state(pdev, PCI_D3hot); |
|
3068 |
||
3069 |
return 0; |
|
3070 |
} |
|
3071 |
||
3072 |
#ifdef CONFIG_PM |
|
3073 |
static int e100_suspend(struct pci_dev *pdev, pm_message_t state) |
|
3074 |
{
|
|
3075 |
bool wake; |
|
3076 |
__e100_shutdown(pdev, &wake); |
|
3077 |
return __e100_power_off(pdev, wake); |
|
3078 |
} |
|
3079 |
||
3080 |
static int e100_resume(struct pci_dev *pdev) |
|
3081 |
{
|
|
3082 |
struct net_device *netdev = pci_get_drvdata(pdev); |
|
3083 |
struct nic *nic = netdev_priv(netdev); |
|
3084 |
||
3085 |
pci_set_power_state(pdev, PCI_D0); |
|
3086 |
pci_restore_state(pdev); |
|
3087 |
/* ack any pending wake events, disable PME */ |
|
3088 |
pci_enable_wake(pdev, 0, 0); |
|
3089 |
||
3090 |
/* disable reverse auto-negotiation */ |
|
3091 |
if (nic->phy == phy_82552_v) {
|
|
3092 |
u16 smartspeed = mdio_read(netdev, nic->mii.phy_id, |
|
3093 |
E100_82552_SMARTSPEED); |
|
3094 |
||
3095 |
mdio_write(netdev, nic->mii.phy_id, |
|
3096 |
E100_82552_SMARTSPEED, |
|
3097 |
smartspeed & ~(E100_82552_REV_ANEG)); |
|
3098 |
} |
|
3099 |
||
3100 |
netif_device_attach(netdev); |
|
3101 |
if (netif_running(netdev)) |
|
3102 |
e100_up(nic); |
|
3103 |
||
3104 |
return 0; |
|
3105 |
} |
|
3106 |
#endif /* CONFIG_PM */ |
|
3107 |
||
3108 |
static void e100_shutdown(struct pci_dev *pdev) |
|
3109 |
{
|
|
3110 |
bool wake; |
|
3111 |
__e100_shutdown(pdev, &wake); |
|
3112 |
if (system_state == SYSTEM_POWER_OFF) |
|
3113 |
__e100_power_off(pdev, wake); |
|
3114 |
} |
|
3115 |
||
3116 |
/* ------------------ PCI Error Recovery infrastructure -------------- */ |
|
3117 |
/** |
|
3118 |
* e100_io_error_detected - called when PCI error is detected. |
|
3119 |
* @pdev: Pointer to PCI device |
|
3120 |
* @state: The current pci connection state |
|
3121 |
*/ |
|
3122 |
static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) |
|
3123 |
{
|
|
3124 |
struct net_device *netdev = pci_get_drvdata(pdev); |
|
3125 |
struct nic *nic = netdev_priv(netdev); |
|
3126 |
||
3127 |
if (nic->ecdev) |
|
3128 |
return -EBUSY; |
|
3129 |
||
3130 |
netif_device_detach(netdev); |
|
3131 |
||
3132 |
if (state == pci_channel_io_perm_failure) |
|
3133 |
return PCI_ERS_RESULT_DISCONNECT; |
|
3134 |
||
3135 |
if (netif_running(netdev)) |
|
3136 |
e100_down(nic); |
|
3137 |
pci_disable_device(pdev); |
|
3138 |
||
3139 |
/* Request a slot reset. */ |
|
3140 |
return PCI_ERS_RESULT_NEED_RESET; |
|
3141 |
} |
|
3142 |
||
3143 |
/** |
|
3144 |
* e100_io_slot_reset - called after the pci bus has been reset. |
|
3145 |
* @pdev: Pointer to PCI device |
|
3146 |
* |
|
3147 |
* Restart the card from scratch. |
|
3148 |
*/ |
|
3149 |
static pci_ers_result_t e100_io_slot_reset(struct pci_dev *pdev) |
|
3150 |
{
|
|
3151 |
struct net_device *netdev = pci_get_drvdata(pdev); |
|
3152 |
struct nic *nic = netdev_priv(netdev); |
|
3153 |
||
3154 |
if (nic->ecdev) |
|
3155 |
return -EBUSY; |
|
3156 |
||
3157 |
if (pci_enable_device(pdev)) {
|
|
3158 |
printk(KERN_ERR "e100: Cannot re-enable PCI device after reset.\n"); |
|
3159 |
return PCI_ERS_RESULT_DISCONNECT; |
|
3160 |
} |
|
3161 |
pci_set_master(pdev); |
|
3162 |
||
3163 |
/* Only one device per card can do a reset */ |
|
3164 |
if (0 != PCI_FUNC(pdev->devfn)) |
|
3165 |
return PCI_ERS_RESULT_RECOVERED; |
|
3166 |
e100_hw_reset(nic); |
|
3167 |
e100_phy_init(nic); |
|
3168 |
||
3169 |
return PCI_ERS_RESULT_RECOVERED; |
|
3170 |
} |
|
3171 |
||
3172 |
/** |
|
3173 |
* e100_io_resume - resume normal operations |
|
3174 |
* @pdev: Pointer to PCI device |
|
3175 |
* |
|
3176 |
* Resume normal operations after an error recovery |
|
3177 |
* sequence has been completed. |
|
3178 |
*/ |
|
3179 |
static void e100_io_resume(struct pci_dev *pdev) |
|
3180 |
{
|
|
3181 |
struct net_device *netdev = pci_get_drvdata(pdev); |
|
3182 |
struct nic *nic = netdev_priv(netdev); |
|
3183 |
||
3184 |
/* ack any pending wake events, disable PME */ |
|
3185 |
pci_enable_wake(pdev, 0, 0); |
|
3186 |
||
3187 |
if (!nic->ecdev) |
|
3188 |
netif_device_attach(netdev); |
|
3189 |
if (nic->ecdev || netif_running(netdev)) {
|
|
3190 |
e100_open(netdev); |
|
3191 |
if (!nic->ecdev) |
|
3192 |
mod_timer(&nic->watchdog, jiffies); |
|
3193 |
} |
|
3194 |
} |
|
3195 |
||
3196 |
static struct pci_error_handlers e100_err_handler = {
|
|
3197 |
.error_detected = e100_io_error_detected, |
|
3198 |
.slot_reset = e100_io_slot_reset, |
|
3199 |
.resume = e100_io_resume, |
|
3200 |
}; |
|
3201 |
||
3202 |
static struct pci_driver e100_driver = {
|
|
3203 |
.name = DRV_NAME, |
|
3204 |
.id_table = e100_id_table, |
|
3205 |
.probe = e100_probe, |
|
3206 |
.remove = __devexit_p(e100_remove), |
|
3207 |
#ifdef CONFIG_PM |
|
3208 |
/* Power Management hooks */ |
|
3209 |
.suspend = e100_suspend, |
|
3210 |
.resume = e100_resume, |
|
3211 |
#endif |
|
3212 |
.shutdown = e100_shutdown, |
|
3213 |
.err_handler = &e100_err_handler, |
|
3214 |
}; |
|
3215 |
||
3216 |
static int __init e100_init_module(void) |
|
3217 |
{
|
|
3218 |
printk(KERN_INFO DRV_NAME " " DRV_DESCRIPTION " " DRV_VERSION |
|
3219 |
", master " EC_MASTER_VERSION "\n"); |
|
| 2421 | 3220 |
|
| 1812 | 3221 |
return pci_register_driver(&e100_driver); |
3222 |
} |
|
3223 |
||
3224 |
static void __exit e100_cleanup_module(void) |
|
3225 |
{
|
|
3226 |
printk(KERN_INFO DRV_NAME " cleaning up module...\n"); |
|
3227 |
pci_unregister_driver(&e100_driver); |
|
3228 |
printk(KERN_INFO DRV_NAME " module cleaned up.\n"); |
|
3229 |
} |
|
3230 |
||
3231 |
module_init(e100_init_module); |
|
3232 |
module_exit(e100_cleanup_module); |