From patchwork Wed Dec 18 10:55:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Ellerman X-Patchwork-Id: 13913450 X-Patchwork-Delegate: kuba@kernel.org Received: from mail.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1D4C199EA1 for ; Wed, 18 Dec 2024 10:55:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=150.107.74.76 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734519351; cv=none; b=MEM3ZrzNUkQJnQTDp9pXw+t0H1PsoQ/Fp5nzbLNESJ/VoDivBB+uFzK4QSk1X07l5ts/Yc+jQHF9eIgbqro1QX1mAVBLWsmK1GPerV0HWDzdWEqrihtawC65iu8DPHsXmdj4CGjieskaCVJe+OBY5NBULJ7/lz6n8/IamiSohgw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734519351; c=relaxed/simple; bh=pOtOfNL7rImo+B+VLtUcF7CrpOA7Df0IbDzuhJQS4F0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=s6tOLjU3WTr8PERBad8QysPZeCrXaBDhKkd8xkzC7UR6cUT+wtwe+b3qr1ZXxXZ1bWUY9Lwglu6NOB1gN52d0ZhVMGMSRQlFVT6mDW08CQG4GCHzQDGlbulmakjgMQDuuaAyFbIpSUIEJrZKEX0X+ZAY7gkxVKRqj8oTyAajSJA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au; spf=pass smtp.mailfrom=ellerman.id.au; dkim=pass (2048-bit key) header.d=ellerman.id.au header.i=@ellerman.id.au header.b=DGKldK5K; arc=none smtp.client-ip=150.107.74.76 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ellerman.id.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ellerman.id.au header.i=@ellerman.id.au header.b="DGKldK5K" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1734519337; bh=7rDS1JhZKtch3/lF79taA21P7mh8dSQNSHeOXdEunvg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DGKldK5KT25f/eir8Em/zl4NSh9mkzf3R8Uzk6aZD4rlBg9Na9UY3ud8POCYno34Z wV/tySaUge6sIWEUyVfbptfOLGwEg+PdgAokkO45cjpwG5Qdq/QD3O9YQ61wgFwxWi s70GtyqgGBBs1B8MBGnOn7VRblQ9Q2rH9oXMMAAbmRBoq8ASjVI+bhX0bjktEU44B3 qMajMvJEV1VGrjHfjwVQ+yX8EakWSRJFgSjDQSLnWzebVhzemnLZI2xxndukqTEK7e Mg5JLyiwNXhopR/IjLwuFd1ypiDDSidijAOlN+SyHE366ag6fKto5EoCKzBEJ3DAdT zp0+Evtnml8rA== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.ozlabs.org (Postfix) with ESMTPSA id 4YCrF55NWXz4xfh; Wed, 18 Dec 2024 21:55:37 +1100 (AEDT) From: Michael Ellerman To: Cc: , , , netdev@vger.kernel.org Subject: [PATCH v2 24/25] net: spider_net: Remove powerpc Cell driver Date: Wed, 18 Dec 2024 21:55:12 +1100 Message-ID: <20241218105523.416573-24-mpe@ellerman.id.au> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241218105523.416573-1-mpe@ellerman.id.au> References: <20241218105523.416573-1-mpe@ellerman.id.au> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org This driver can no longer be built since support for IBM Cell Blades was removed, in particular PPC_IBM_CELL_BLADE. Remove the driver and the documentation. Remove the MAINTAINERS entry, and add Ishizaki and Geoff to CREDITS. Reviewed-by: Arnd Bergmann Signed-off-by: Michael Ellerman --- v2: Unchanged. Cc: netdev@vger.kernel.org CREDITS | 8 + .../device_drivers/ethernet/index.rst | 1 - .../ethernet/toshiba/spider_net.rst | 202 -- MAINTAINERS | 9 - drivers/net/ethernet/toshiba/Kconfig | 9 - drivers/net/ethernet/toshiba/Makefile | 2 - drivers/net/ethernet/toshiba/spider_net.c | 2556 ----------------- drivers/net/ethernet/toshiba/spider_net.h | 475 --- .../net/ethernet/toshiba/spider_net_ethtool.c | 174 -- 9 files changed, 8 insertions(+), 3428 deletions(-) delete mode 100644 Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst delete mode 100644 drivers/net/ethernet/toshiba/spider_net.c delete mode 100644 drivers/net/ethernet/toshiba/spider_net.h delete mode 100644 drivers/net/ethernet/toshiba/spider_net_ethtool.c diff --git a/CREDITS b/CREDITS index 0140e0a53ef8..3baf774b8b0d 100644 --- a/CREDITS +++ b/CREDITS @@ -2175,6 +2175,10 @@ D: Various ACPI fixes, keeping correct battery state through suspend D: various lockdep annotations, autofs and other random bugfixes S: Prague, Czech Republic +N: Ishizaki Kou +E: kou.ishizaki@toshiba.co.jp +D: Spidernet driver for PowerPC Cell platforms + N: Gene Kozin E: 74604.152@compuserve.com W: https://www.sangoma.com @@ -2380,6 +2384,10 @@ S: ICP vortex GmbH S: Neckarsulm S: Germany +N: Geoff Levand +E: geoff@infradead.org +D: Spidernet driver for PowerPC Cell platforms + N: Phil Lewis E: beans@bucket.ualr.edu D: Promised to send money if I would put his name in the source tree. diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst index 6fc1961492b7..05d822b904b4 100644 --- a/Documentation/networking/device_drivers/ethernet/index.rst +++ b/Documentation/networking/device_drivers/ethernet/index.rst @@ -55,7 +55,6 @@ Contents: ti/cpsw_switchdev ti/am65_nuss_cpsw_switchdev ti/tlan - toshiba/spider_net wangxun/txgbe wangxun/ngbe diff --git a/Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst b/Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst deleted file mode 100644 index fe5b32be15cd..000000000000 --- a/Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst +++ /dev/null @@ -1,202 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -=========================== -The Spidernet Device Driver -=========================== - -Written by Linas Vepstas - -Version of 7 June 2007 - -Abstract -======== -This document sketches the structure of portions of the spidernet -device driver in the Linux kernel tree. The spidernet is a gigabit -ethernet device built into the Toshiba southbridge commonly used -in the SONY Playstation 3 and the IBM QS20 Cell blade. - -The Structure of the RX Ring. -============================= -The receive (RX) ring is a circular linked list of RX descriptors, -together with three pointers into the ring that are used to manage its -contents. - -The elements of the ring are called "descriptors" or "descrs"; they -describe the received data. This includes a pointer to a buffer -containing the received data, the buffer size, and various status bits. - -There are three primary states that a descriptor can be in: "empty", -"full" and "not-in-use". An "empty" or "ready" descriptor is ready -to receive data from the hardware. A "full" descriptor has data in it, -and is waiting to be emptied and processed by the OS. A "not-in-use" -descriptor is neither empty or full; it is simply not ready. It may -not even have a data buffer in it, or is otherwise unusable. - -During normal operation, on device startup, the OS (specifically, the -spidernet device driver) allocates a set of RX descriptors and RX -buffers. These are all marked "empty", ready to receive data. This -ring is handed off to the hardware, which sequentially fills in the -buffers, and marks them "full". The OS follows up, taking the full -buffers, processing them, and re-marking them empty. - -This filling and emptying is managed by three pointers, the "head" -and "tail" pointers, managed by the OS, and a hardware current -descriptor pointer (GDACTDPA). The GDACTDPA points at the descr -currently being filled. When this descr is filled, the hardware -marks it full, and advances the GDACTDPA by one. Thus, when there is -flowing RX traffic, every descr behind it should be marked "full", -and everything in front of it should be "empty". If the hardware -discovers that the current descr is not empty, it will signal an -interrupt, and halt processing. - -The tail pointer tails or trails the hardware pointer. When the -hardware is ahead, the tail pointer will be pointing at a "full" -descr. The OS will process this descr, and then mark it "not-in-use", -and advance the tail pointer. Thus, when there is flowing RX traffic, -all of the descrs in front of the tail pointer should be "full", and -all of those behind it should be "not-in-use". When RX traffic is not -flowing, then the tail pointer can catch up to the hardware pointer. -The OS will then note that the current tail is "empty", and halt -processing. - -The head pointer (somewhat mis-named) follows after the tail pointer. -When traffic is flowing, then the head pointer will be pointing at -a "not-in-use" descr. The OS will perform various housekeeping duties -on this descr. This includes allocating a new data buffer and -dma-mapping it so as to make it visible to the hardware. The OS will -then mark the descr as "empty", ready to receive data. Thus, when there -is flowing RX traffic, everything in front of the head pointer should -be "not-in-use", and everything behind it should be "empty". If no -RX traffic is flowing, then the head pointer can catch up to the tail -pointer, at which point the OS will notice that the head descr is -"empty", and it will halt processing. - -Thus, in an idle system, the GDACTDPA, tail and head pointers will -all be pointing at the same descr, which should be "empty". All of the -other descrs in the ring should be "empty" as well. - -The show_rx_chain() routine will print out the locations of the -GDACTDPA, tail and head pointers. It will also summarize the contents -of the ring, starting at the tail pointer, and listing the status -of the descrs that follow. - -A typical example of the output, for a nearly idle system, might be:: - - net eth1: Total number of descrs=256 - net eth1: Chain tail located at descr=20 - net eth1: Chain head is at 20 - net eth1: HW curr desc (GDACTDPA) is at 21 - net eth1: Have 1 descrs with stat=x40800101 - net eth1: HW next desc (GDACNEXTDA) is at 22 - net eth1: Last 255 descrs with stat=xa0800000 - -In the above, the hardware has filled in one descr, number 20. Both -head and tail are pointing at 20, because it has not yet been emptied. -Meanwhile, hw is pointing at 21, which is free. - -The "Have nnn decrs" refers to the descr starting at the tail: in this -case, nnn=1 descr, starting at descr 20. The "Last nnn descrs" refers -to all of the rest of the descrs, from the last status change. The "nnn" -is a count of how many descrs have exactly the same status. - -The status x4... corresponds to "full" and status xa... corresponds -to "empty". The actual value printed is RXCOMST_A. - -In the device driver source code, a different set of names are -used for these same concepts, so that:: - - "empty" == SPIDER_NET_DESCR_CARDOWNED == 0xa - "full" == SPIDER_NET_DESCR_FRAME_END == 0x4 - "not in use" == SPIDER_NET_DESCR_NOT_IN_USE == 0xf - - -The RX RAM full bug/feature -=========================== - -As long as the OS can empty out the RX buffers at a rate faster than -the hardware can fill them, there is no problem. If, for some reason, -the OS fails to empty the RX ring fast enough, the hardware GDACTDPA -pointer will catch up to the head, notice the not-empty condition, -ad stop. However, RX packets may still continue arriving on the wire. -The spidernet chip can save some limited number of these in local RAM. -When this local ram fills up, the spider chip will issue an interrupt -indicating this (GHIINT0STS will show ERRINT, and the GRMFLLINT bit -will be set in GHIINT1STS). When the RX ram full condition occurs, -a certain bug/feature is triggered that has to be specially handled. -This section describes the special handling for this condition. - -When the OS finally has a chance to run, it will empty out the RX ring. -In particular, it will clear the descriptor on which the hardware had -stopped. However, once the hardware has decided that a certain -descriptor is invalid, it will not restart at that descriptor; instead -it will restart at the next descr. This potentially will lead to a -deadlock condition, as the tail pointer will be pointing at this descr, -which, from the OS point of view, is empty; the OS will be waiting for -this descr to be filled. However, the hardware has skipped this descr, -and is filling the next descrs. Since the OS doesn't see this, there -is a potential deadlock, with the OS waiting for one descr to fill, -while the hardware is waiting for a different set of descrs to become -empty. - -A call to show_rx_chain() at this point indicates the nature of the -problem. A typical print when the network is hung shows the following:: - - net eth1: Spider RX RAM full, incoming packets might be discarded! - net eth1: Total number of descrs=256 - net eth1: Chain tail located at descr=255 - net eth1: Chain head is at 255 - net eth1: HW curr desc (GDACTDPA) is at 0 - net eth1: Have 1 descrs with stat=xa0800000 - net eth1: HW next desc (GDACNEXTDA) is at 1 - net eth1: Have 127 descrs with stat=x40800101 - net eth1: Have 1 descrs with stat=x40800001 - net eth1: Have 126 descrs with stat=x40800101 - net eth1: Last 1 descrs with stat=xa0800000 - -Both the tail and head pointers are pointing at descr 255, which is -marked xa... which is "empty". Thus, from the OS point of view, there -is nothing to be done. In particular, there is the implicit assumption -that everything in front of the "empty" descr must surely also be empty, -as explained in the last section. The OS is waiting for descr 255 to -become non-empty, which, in this case, will never happen. - -The HW pointer is at descr 0. This descr is marked 0x4.. or "full". -Since its already full, the hardware can do nothing more, and thus has -halted processing. Notice that descrs 0 through 254 are all marked -"full", while descr 254 and 255 are empty. (The "Last 1 descrs" is -descr 254, since tail was at 255.) Thus, the system is deadlocked, -and there can be no forward progress; the OS thinks there's nothing -to do, and the hardware has nowhere to put incoming data. - -This bug/feature is worked around with the spider_net_resync_head_ptr() -routine. When the driver receives RX interrupts, but an examination -of the RX chain seems to show it is empty, then it is probable that -the hardware has skipped a descr or two (sometimes dozens under heavy -network conditions). The spider_net_resync_head_ptr() subroutine will -search the ring for the next full descr, and the driver will resume -operations there. Since this will leave "holes" in the ring, there -is also a spider_net_resync_tail_ptr() that will skip over such holes. - -As of this writing, the spider_net_resync() strategy seems to work very -well, even under heavy network loads. - - -The TX ring -=========== -The TX ring uses a low-watermark interrupt scheme to make sure that -the TX queue is appropriately serviced for large packet sizes. - -For packet sizes greater than about 1KBytes, the kernel can fill -the TX ring quicker than the device can drain it. Once the ring -is full, the netdev is stopped. When there is room in the ring, -the netdev needs to be reawakened, so that more TX packets are placed -in the ring. The hardware can empty the ring about four times per jiffy, -so its not appropriate to wait for the poll routine to refill, since -the poll routine runs only once per jiffy. The low-watermark mechanism -marks a descr about 1/4th of the way from the bottom of the queue, so -that an interrupt is generated when the descr is processed. This -interrupt wakes up the netdev, which can then refill the queue. -For large packets, this mechanism generates a relatively small number -of interrupts, about 1K/sec. For smaller packets, this will drop to zero -interrupts, as the hardware can empty the queue faster than the kernel -can fill it. diff --git a/MAINTAINERS b/MAINTAINERS index 17daa9ee9384..e221c93ea583 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -22111,15 +22111,6 @@ F: include/linux/spi/ F: include/uapi/linux/spi/ F: tools/spi/ -SPIDERNET NETWORK DRIVER for CELL -M: Ishizaki Kou -M: Geoff Levand -L: netdev@vger.kernel.org -L: linuxppc-dev@lists.ozlabs.org -S: Maintained -F: Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst -F: drivers/net/ethernet/toshiba/spider_net* - SPMI SUBSYSTEM M: Stephen Boyd L: linux-kernel@vger.kernel.org diff --git a/drivers/net/ethernet/toshiba/Kconfig b/drivers/net/ethernet/toshiba/Kconfig index 701e9b7c1c3b..2b1081598284 100644 --- a/drivers/net/ethernet/toshiba/Kconfig +++ b/drivers/net/ethernet/toshiba/Kconfig @@ -39,15 +39,6 @@ config GELIC_WIRELESS the driver automatically distinguishes the models, you can safely enable this option even if you have a wireless-less model. -config SPIDER_NET - tristate "Spider Gigabit Ethernet driver" - depends on PCI && PPC_IBM_CELL_BLADE - select FW_LOADER - select SUNGEM_PHY - help - This driver supports the Gigabit Ethernet chips present on the - Cell Processor-Based Blades from IBM. - config TC35815 tristate "TOSHIBA TC35815 Ethernet support" depends on PCI && MIPS diff --git a/drivers/net/ethernet/toshiba/Makefile b/drivers/net/ethernet/toshiba/Makefile index f434fd0f429e..27e2164cf7e9 100644 --- a/drivers/net/ethernet/toshiba/Makefile +++ b/drivers/net/ethernet/toshiba/Makefile @@ -6,6 +6,4 @@ obj-$(CONFIG_GELIC_NET) += ps3_gelic.o gelic_wireless-$(CONFIG_GELIC_WIRELESS) += ps3_gelic_wireless.o ps3_gelic-objs += ps3_gelic_net.o $(gelic_wireless-y) -spidernet-y += spider_net.o spider_net_ethtool.o -obj-$(CONFIG_SPIDER_NET) += spidernet.o obj-$(CONFIG_TC35815) += tc35815.o diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c deleted file mode 100644 index a4937c18d7cb..000000000000 --- a/drivers/net/ethernet/toshiba/spider_net.c +++ /dev/null @@ -1,2556 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Network device driver for Cell Processor-Based Blade and Celleb platform - * - * (C) Copyright IBM Corp. 2005 - * (C) Copyright 2006 TOSHIBA CORPORATION - * - * Authors : Utz Bacher - * Jens Osterkamp - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "spider_net.h" - -MODULE_AUTHOR("Utz Bacher and Jens Osterkamp " \ - ""); -MODULE_DESCRIPTION("Spider Southbridge Gigabit Ethernet driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(VERSION); -MODULE_FIRMWARE(SPIDER_NET_FIRMWARE_NAME); - -static int rx_descriptors = SPIDER_NET_RX_DESCRIPTORS_DEFAULT; -static int tx_descriptors = SPIDER_NET_TX_DESCRIPTORS_DEFAULT; - -module_param(rx_descriptors, int, 0444); -module_param(tx_descriptors, int, 0444); - -MODULE_PARM_DESC(rx_descriptors, "number of descriptors used " \ - "in rx chains"); -MODULE_PARM_DESC(tx_descriptors, "number of descriptors used " \ - "in tx chain"); - -char spider_net_driver_name[] = "spidernet"; - -static const struct pci_device_id spider_net_pci_tbl[] = { - { PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SPIDER_NET, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, - { 0, } -}; - -MODULE_DEVICE_TABLE(pci, spider_net_pci_tbl); - -/** - * spider_net_read_reg - reads an SMMIO register of a card - * @card: device structure - * @reg: register to read from - * - * returns the content of the specified SMMIO register. - */ -static inline u32 -spider_net_read_reg(struct spider_net_card *card, u32 reg) -{ - /* We use the powerpc specific variants instead of readl_be() because - * we know spidernet is not a real PCI device and we can thus avoid the - * performance hit caused by the PCI workarounds. - */ - return in_be32(card->regs + reg); -} - -/** - * spider_net_write_reg - writes to an SMMIO register of a card - * @card: device structure - * @reg: register to write to - * @value: value to write into the specified SMMIO register - */ -static inline void -spider_net_write_reg(struct spider_net_card *card, u32 reg, u32 value) -{ - /* We use the powerpc specific variants instead of writel_be() because - * we know spidernet is not a real PCI device and we can thus avoid the - * performance hit caused by the PCI workarounds. - */ - out_be32(card->regs + reg, value); -} - -/** - * spider_net_write_phy - write to phy register - * @netdev: adapter to be written to - * @mii_id: id of MII - * @reg: PHY register - * @val: value to be written to phy register - * - * spider_net_write_phy_register writes to an arbitrary PHY - * register via the spider GPCWOPCMD register. We assume the queue does - * not run full (not more than 15 commands outstanding). - **/ -static void -spider_net_write_phy(struct net_device *netdev, int mii_id, - int reg, int val) -{ - struct spider_net_card *card = netdev_priv(netdev); - u32 writevalue; - - writevalue = ((u32)mii_id << 21) | - ((u32)reg << 16) | ((u32)val); - - spider_net_write_reg(card, SPIDER_NET_GPCWOPCMD, writevalue); -} - -/** - * spider_net_read_phy - read from phy register - * @netdev: network device to be read from - * @mii_id: id of MII - * @reg: PHY register - * - * Returns value read from PHY register - * - * spider_net_write_phy reads from an arbitrary PHY - * register via the spider GPCROPCMD register - **/ -static int -spider_net_read_phy(struct net_device *netdev, int mii_id, int reg) -{ - struct spider_net_card *card = netdev_priv(netdev); - u32 readvalue; - - readvalue = ((u32)mii_id << 21) | ((u32)reg << 16); - spider_net_write_reg(card, SPIDER_NET_GPCROPCMD, readvalue); - - /* we don't use semaphores to wait for an SPIDER_NET_GPROPCMPINT - * interrupt, as we poll for the completion of the read operation - * in spider_net_read_phy. Should take about 50 us - */ - do { - readvalue = spider_net_read_reg(card, SPIDER_NET_GPCROPCMD); - } while (readvalue & SPIDER_NET_GPREXEC); - - readvalue &= SPIDER_NET_GPRDAT_MASK; - - return readvalue; -} - -/** - * spider_net_setup_aneg - initial auto-negotiation setup - * @card: device structure - **/ -static void -spider_net_setup_aneg(struct spider_net_card *card) -{ - struct mii_phy *phy = &card->phy; - u32 advertise = 0; - u16 bmsr, estat; - - bmsr = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR); - estat = spider_net_read_phy(card->netdev, phy->mii_id, MII_ESTATUS); - - if (bmsr & BMSR_10HALF) - advertise |= ADVERTISED_10baseT_Half; - if (bmsr & BMSR_10FULL) - advertise |= ADVERTISED_10baseT_Full; - if (bmsr & BMSR_100HALF) - advertise |= ADVERTISED_100baseT_Half; - if (bmsr & BMSR_100FULL) - advertise |= ADVERTISED_100baseT_Full; - - if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_TFULL)) - advertise |= SUPPORTED_1000baseT_Full; - if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_THALF)) - advertise |= SUPPORTED_1000baseT_Half; - - sungem_phy_probe(phy, phy->mii_id); - phy->def->ops->setup_aneg(phy, advertise); - -} - -/** - * spider_net_rx_irq_off - switch off rx irq on this spider card - * @card: device structure - * - * switches off rx irq by masking them out in the GHIINTnMSK register - */ -static void -spider_net_rx_irq_off(struct spider_net_card *card) -{ - u32 regvalue; - - regvalue = SPIDER_NET_INT0_MASK_VALUE & (~SPIDER_NET_RXINT); - spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, regvalue); -} - -/** - * spider_net_rx_irq_on - switch on rx irq on this spider card - * @card: device structure - * - * switches on rx irq by enabling them in the GHIINTnMSK register - */ -static void -spider_net_rx_irq_on(struct spider_net_card *card) -{ - u32 regvalue; - - regvalue = SPIDER_NET_INT0_MASK_VALUE | SPIDER_NET_RXINT; - spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, regvalue); -} - -/** - * spider_net_set_promisc - sets the unicast address or the promiscuous mode - * @card: card structure - * - * spider_net_set_promisc sets the unicast destination address filter and - * thus either allows for non-promisc mode or promisc mode - */ -static void -spider_net_set_promisc(struct spider_net_card *card) -{ - u32 macu, macl; - struct net_device *netdev = card->netdev; - - if (netdev->flags & IFF_PROMISC) { - /* clear destination entry 0 */ - spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR, 0); - spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR + 0x04, 0); - spider_net_write_reg(card, SPIDER_NET_GMRUA0FIL15R, - SPIDER_NET_PROMISC_VALUE); - } else { - macu = netdev->dev_addr[0]; - macu <<= 8; - macu |= netdev->dev_addr[1]; - memcpy(&macl, &netdev->dev_addr[2], sizeof(macl)); - - macu |= SPIDER_NET_UA_DESCR_VALUE; - spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR, macu); - spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR + 0x04, macl); - spider_net_write_reg(card, SPIDER_NET_GMRUA0FIL15R, - SPIDER_NET_NONPROMISC_VALUE); - } -} - -/** - * spider_net_get_descr_status -- returns the status of a descriptor - * @hwdescr: descriptor to look at - * - * returns the status as in the dmac_cmd_status field of the descriptor - */ -static inline int -spider_net_get_descr_status(struct spider_net_hw_descr *hwdescr) -{ - return hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_IND_PROC_MASK; -} - -/** - * spider_net_free_chain - free descriptor chain - * @card: card structure - * @chain: address of chain - * - */ -static void -spider_net_free_chain(struct spider_net_card *card, - struct spider_net_descr_chain *chain) -{ - struct spider_net_descr *descr; - - descr = chain->ring; - do { - descr->bus_addr = 0; - descr->hwdescr->next_descr_addr = 0; - descr = descr->next; - } while (descr != chain->ring); - - dma_free_coherent(&card->pdev->dev, chain->num_desc * sizeof(struct spider_net_hw_descr), - chain->hwring, chain->dma_addr); -} - -/** - * spider_net_init_chain - alloc and link descriptor chain - * @card: card structure - * @chain: address of chain - * - * We manage a circular list that mirrors the hardware structure, - * except that the hardware uses bus addresses. - * - * Returns 0 on success, <0 on failure - */ -static int -spider_net_init_chain(struct spider_net_card *card, - struct spider_net_descr_chain *chain) -{ - int i; - struct spider_net_descr *descr; - struct spider_net_hw_descr *hwdescr; - dma_addr_t buf; - size_t alloc_size; - - alloc_size = chain->num_desc * sizeof(struct spider_net_hw_descr); - - chain->hwring = dma_alloc_coherent(&card->pdev->dev, alloc_size, - &chain->dma_addr, GFP_KERNEL); - if (!chain->hwring) - return -ENOMEM; - - /* Set up the hardware pointers in each descriptor */ - descr = chain->ring; - hwdescr = chain->hwring; - buf = chain->dma_addr; - for (i=0; i < chain->num_desc; i++, descr++, hwdescr++) { - hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE; - hwdescr->next_descr_addr = 0; - - descr->hwdescr = hwdescr; - descr->bus_addr = buf; - descr->next = descr + 1; - descr->prev = descr - 1; - - buf += sizeof(struct spider_net_hw_descr); - } - /* do actual circular list */ - (descr-1)->next = chain->ring; - chain->ring->prev = descr-1; - - spin_lock_init(&chain->lock); - chain->head = chain->ring; - chain->tail = chain->ring; - return 0; -} - -/** - * spider_net_free_rx_chain_contents - frees descr contents in rx chain - * @card: card structure - * - * returns 0 on success, <0 on failure - */ -static void -spider_net_free_rx_chain_contents(struct spider_net_card *card) -{ - struct spider_net_descr *descr; - - descr = card->rx_chain.head; - do { - if (descr->skb) { - dma_unmap_single(&card->pdev->dev, - descr->hwdescr->buf_addr, - SPIDER_NET_MAX_FRAME, - DMA_BIDIRECTIONAL); - dev_kfree_skb(descr->skb); - descr->skb = NULL; - } - descr = descr->next; - } while (descr != card->rx_chain.head); -} - -/** - * spider_net_prepare_rx_descr - Reinitialize RX descriptor - * @card: card structure - * @descr: descriptor to re-init - * - * Return 0 on success, <0 on failure. - * - * Allocates a new rx skb, iommu-maps it and attaches it to the - * descriptor. Mark the descriptor as activated, ready-to-use. - */ -static int -spider_net_prepare_rx_descr(struct spider_net_card *card, - struct spider_net_descr *descr) -{ - struct spider_net_hw_descr *hwdescr = descr->hwdescr; - dma_addr_t buf; - int offset; - int bufsize; - - /* we need to round up the buffer size to a multiple of 128 */ - bufsize = (SPIDER_NET_MAX_FRAME + SPIDER_NET_RXBUF_ALIGN - 1) & - (~(SPIDER_NET_RXBUF_ALIGN - 1)); - - /* and we need to have it 128 byte aligned, therefore we allocate a - * bit more - */ - /* allocate an skb */ - descr->skb = netdev_alloc_skb(card->netdev, - bufsize + SPIDER_NET_RXBUF_ALIGN - 1); - if (!descr->skb) { - if (netif_msg_rx_err(card) && net_ratelimit()) - dev_err(&card->netdev->dev, - "Not enough memory to allocate rx buffer\n"); - card->spider_stats.alloc_rx_skb_error++; - return -ENOMEM; - } - hwdescr->buf_size = bufsize; - hwdescr->result_size = 0; - hwdescr->valid_size = 0; - hwdescr->data_status = 0; - hwdescr->data_error = 0; - - offset = ((unsigned long)descr->skb->data) & - (SPIDER_NET_RXBUF_ALIGN - 1); - if (offset) - skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset); - /* iommu-map the skb */ - buf = dma_map_single(&card->pdev->dev, descr->skb->data, - SPIDER_NET_MAX_FRAME, DMA_FROM_DEVICE); - if (dma_mapping_error(&card->pdev->dev, buf)) { - dev_kfree_skb_any(descr->skb); - descr->skb = NULL; - if (netif_msg_rx_err(card) && net_ratelimit()) - dev_err(&card->netdev->dev, "Could not iommu-map rx buffer\n"); - card->spider_stats.rx_iommu_map_error++; - hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE; - } else { - hwdescr->buf_addr = buf; - wmb(); - hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED | - SPIDER_NET_DMAC_NOINTR_COMPLETE; - } - - return 0; -} - -/** - * spider_net_enable_rxchtails - sets RX dmac chain tail addresses - * @card: card structure - * - * spider_net_enable_rxchtails sets the RX DMAC chain tail addresses in the - * chip by writing to the appropriate register. DMA is enabled in - * spider_net_enable_rxdmac. - */ -static inline void -spider_net_enable_rxchtails(struct spider_net_card *card) -{ - /* assume chain is aligned correctly */ - spider_net_write_reg(card, SPIDER_NET_GDADCHA , - card->rx_chain.tail->bus_addr); -} - -/** - * spider_net_enable_rxdmac - enables a receive DMA controller - * @card: card structure - * - * spider_net_enable_rxdmac enables the DMA controller by setting RX_DMA_EN - * in the GDADMACCNTR register - */ -static inline void -spider_net_enable_rxdmac(struct spider_net_card *card) -{ - wmb(); - spider_net_write_reg(card, SPIDER_NET_GDADMACCNTR, - SPIDER_NET_DMA_RX_VALUE); -} - -/** - * spider_net_disable_rxdmac - disables the receive DMA controller - * @card: card structure - * - * spider_net_disable_rxdmac terminates processing on the DMA controller - * by turing off the DMA controller, with the force-end flag set. - */ -static inline void -spider_net_disable_rxdmac(struct spider_net_card *card) -{ - spider_net_write_reg(card, SPIDER_NET_GDADMACCNTR, - SPIDER_NET_DMA_RX_FEND_VALUE); -} - -/** - * spider_net_refill_rx_chain - refills descriptors/skbs in the rx chains - * @card: card structure - * - * refills descriptors in the rx chain: allocates skbs and iommu-maps them. - */ -static void -spider_net_refill_rx_chain(struct spider_net_card *card) -{ - struct spider_net_descr_chain *chain = &card->rx_chain; - unsigned long flags; - - /* one context doing the refill (and a second context seeing that - * and omitting it) is ok. If called by NAPI, we'll be called again - * as spider_net_decode_one_descr is called several times. If some - * interrupt calls us, the NAPI is about to clean up anyway. - */ - if (!spin_trylock_irqsave(&chain->lock, flags)) - return; - - while (spider_net_get_descr_status(chain->head->hwdescr) == - SPIDER_NET_DESCR_NOT_IN_USE) { - if (spider_net_prepare_rx_descr(card, chain->head)) - break; - chain->head = chain->head->next; - } - - spin_unlock_irqrestore(&chain->lock, flags); -} - -/** - * spider_net_alloc_rx_skbs - Allocates rx skbs in rx descriptor chains - * @card: card structure - * - * Returns 0 on success, <0 on failure. - */ -static int -spider_net_alloc_rx_skbs(struct spider_net_card *card) -{ - struct spider_net_descr_chain *chain = &card->rx_chain; - struct spider_net_descr *start = chain->tail; - struct spider_net_descr *descr = start; - - /* Link up the hardware chain pointers */ - do { - descr->prev->hwdescr->next_descr_addr = descr->bus_addr; - descr = descr->next; - } while (descr != start); - - /* Put at least one buffer into the chain. if this fails, - * we've got a problem. If not, spider_net_refill_rx_chain - * will do the rest at the end of this function. - */ - if (spider_net_prepare_rx_descr(card, chain->head)) - goto error; - else - chain->head = chain->head->next; - - /* This will allocate the rest of the rx buffers; - * if not, it's business as usual later on. - */ - spider_net_refill_rx_chain(card); - spider_net_enable_rxdmac(card); - return 0; - -error: - spider_net_free_rx_chain_contents(card); - return -ENOMEM; -} - -/** - * spider_net_get_multicast_hash - generates hash for multicast filter table - * @netdev: interface device structure - * @addr: multicast address - * - * returns the hash value. - * - * spider_net_get_multicast_hash calculates a hash value for a given multicast - * address, that is used to set the multicast filter tables - */ -static u8 -spider_net_get_multicast_hash(struct net_device *netdev, __u8 *addr) -{ - u32 crc; - u8 hash; - char addr_for_crc[ETH_ALEN] = { 0, }; - int i, bit; - - for (i = 0; i < ETH_ALEN * 8; i++) { - bit = (addr[i / 8] >> (i % 8)) & 1; - addr_for_crc[ETH_ALEN - 1 - i / 8] += bit << (7 - (i % 8)); - } - - crc = crc32_be(~0, addr_for_crc, netdev->addr_len); - - hash = (crc >> 27); - hash <<= 3; - hash |= crc & 7; - hash &= 0xff; - - return hash; -} - -/** - * spider_net_set_multi - sets multicast addresses and promisc flags - * @netdev: interface device structure - * - * spider_net_set_multi configures multicast addresses as needed for the - * netdev interface. It also sets up multicast, allmulti and promisc - * flags appropriately - */ -static void -spider_net_set_multi(struct net_device *netdev) -{ - struct netdev_hw_addr *ha; - u8 hash; - int i; - u32 reg; - struct spider_net_card *card = netdev_priv(netdev); - DECLARE_BITMAP(bitmask, SPIDER_NET_MULTICAST_HASHES); - - spider_net_set_promisc(card); - - if (netdev->flags & IFF_ALLMULTI) { - bitmap_fill(bitmask, SPIDER_NET_MULTICAST_HASHES); - goto write_hash; - } - - bitmap_zero(bitmask, SPIDER_NET_MULTICAST_HASHES); - - /* well, we know, what the broadcast hash value is: it's xfd - hash = spider_net_get_multicast_hash(netdev, netdev->broadcast); */ - __set_bit(0xfd, bitmask); - - netdev_for_each_mc_addr(ha, netdev) { - hash = spider_net_get_multicast_hash(netdev, ha->addr); - __set_bit(hash, bitmask); - } - -write_hash: - for (i = 0; i < SPIDER_NET_MULTICAST_HASHES / 4; i++) { - reg = 0; - if (test_bit(i * 4, bitmask)) - reg += 0x08; - reg <<= 8; - if (test_bit(i * 4 + 1, bitmask)) - reg += 0x08; - reg <<= 8; - if (test_bit(i * 4 + 2, bitmask)) - reg += 0x08; - reg <<= 8; - if (test_bit(i * 4 + 3, bitmask)) - reg += 0x08; - - spider_net_write_reg(card, SPIDER_NET_GMRMHFILnR + i * 4, reg); - } -} - -/** - * spider_net_prepare_tx_descr - fill tx descriptor with skb data - * @card: card structure - * @skb: packet to use - * - * returns 0 on success, <0 on failure. - * - * fills out the descriptor structure with skb data and len. Copies data, - * if needed (32bit DMA!) - */ -static int -spider_net_prepare_tx_descr(struct spider_net_card *card, - struct sk_buff *skb) -{ - struct spider_net_descr_chain *chain = &card->tx_chain; - struct spider_net_descr *descr; - struct spider_net_hw_descr *hwdescr; - dma_addr_t buf; - unsigned long flags; - - buf = dma_map_single(&card->pdev->dev, skb->data, skb->len, - DMA_TO_DEVICE); - if (dma_mapping_error(&card->pdev->dev, buf)) { - if (netif_msg_tx_err(card) && net_ratelimit()) - dev_err(&card->netdev->dev, "could not iommu-map packet (%p, %i). " - "Dropping packet\n", skb->data, skb->len); - card->spider_stats.tx_iommu_map_error++; - return -ENOMEM; - } - - spin_lock_irqsave(&chain->lock, flags); - descr = card->tx_chain.head; - if (descr->next == chain->tail->prev) { - spin_unlock_irqrestore(&chain->lock, flags); - dma_unmap_single(&card->pdev->dev, buf, skb->len, - DMA_TO_DEVICE); - return -ENOMEM; - } - hwdescr = descr->hwdescr; - chain->head = descr->next; - - descr->skb = skb; - hwdescr->buf_addr = buf; - hwdescr->buf_size = skb->len; - hwdescr->next_descr_addr = 0; - hwdescr->data_status = 0; - - hwdescr->dmac_cmd_status = - SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_TXFRMTL; - spin_unlock_irqrestore(&chain->lock, flags); - - if (skb->ip_summed == CHECKSUM_PARTIAL) - switch (ip_hdr(skb)->protocol) { - case IPPROTO_TCP: - hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_TCP; - break; - case IPPROTO_UDP: - hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_UDP; - break; - } - - /* Chain the bus address, so that the DMA engine finds this descr. */ - wmb(); - descr->prev->hwdescr->next_descr_addr = descr->bus_addr; - - netif_trans_update(card->netdev); /* set netdev watchdog timer */ - return 0; -} - -static int -spider_net_set_low_watermark(struct spider_net_card *card) -{ - struct spider_net_descr *descr = card->tx_chain.tail; - struct spider_net_hw_descr *hwdescr; - unsigned long flags; - int status; - int cnt=0; - int i; - - /* Measure the length of the queue. Measurement does not - * need to be precise -- does not need a lock. - */ - while (descr != card->tx_chain.head) { - status = descr->hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_NOT_IN_USE; - if (status == SPIDER_NET_DESCR_NOT_IN_USE) - break; - descr = descr->next; - cnt++; - } - - /* If TX queue is short, don't even bother with interrupts */ - if (cnt < card->tx_chain.num_desc/4) - return cnt; - - /* Set low-watermark 3/4th's of the way into the queue. */ - descr = card->tx_chain.tail; - cnt = (cnt*3)/4; - for (i=0;inext; - - /* Set the new watermark, clear the old watermark */ - spin_lock_irqsave(&card->tx_chain.lock, flags); - descr->hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_TXDESFLG; - if (card->low_watermark && card->low_watermark != descr) { - hwdescr = card->low_watermark->hwdescr; - hwdescr->dmac_cmd_status = - hwdescr->dmac_cmd_status & ~SPIDER_NET_DESCR_TXDESFLG; - } - card->low_watermark = descr; - spin_unlock_irqrestore(&card->tx_chain.lock, flags); - return cnt; -} - -/** - * spider_net_release_tx_chain - processes sent tx descriptors - * @card: adapter structure - * @brutal: if set, don't care about whether descriptor seems to be in use - * - * returns 0 if the tx ring is empty, otherwise 1. - * - * spider_net_release_tx_chain releases the tx descriptors that spider has - * finished with (if non-brutal) or simply release tx descriptors (if brutal). - * If some other context is calling this function, we return 1 so that we're - * scheduled again (if we were scheduled) and will not lose initiative. - */ -static int -spider_net_release_tx_chain(struct spider_net_card *card, int brutal) -{ - struct net_device *dev = card->netdev; - struct spider_net_descr_chain *chain = &card->tx_chain; - struct spider_net_descr *descr; - struct spider_net_hw_descr *hwdescr; - struct sk_buff *skb; - u32 buf_addr; - unsigned long flags; - int status; - - while (1) { - spin_lock_irqsave(&chain->lock, flags); - if (chain->tail == chain->head) { - spin_unlock_irqrestore(&chain->lock, flags); - return 0; - } - descr = chain->tail; - hwdescr = descr->hwdescr; - - status = spider_net_get_descr_status(hwdescr); - switch (status) { - case SPIDER_NET_DESCR_COMPLETE: - dev->stats.tx_packets++; - dev->stats.tx_bytes += descr->skb->len; - break; - - case SPIDER_NET_DESCR_CARDOWNED: - if (!brutal) { - spin_unlock_irqrestore(&chain->lock, flags); - return 1; - } - - /* fallthrough, if we release the descriptors - * brutally (then we don't care about - * SPIDER_NET_DESCR_CARDOWNED) - */ - fallthrough; - - case SPIDER_NET_DESCR_RESPONSE_ERROR: - case SPIDER_NET_DESCR_PROTECTION_ERROR: - case SPIDER_NET_DESCR_FORCE_END: - if (netif_msg_tx_err(card)) - dev_err(&card->netdev->dev, "forcing end of tx descriptor " - "with status x%02x\n", status); - dev->stats.tx_errors++; - break; - - default: - dev->stats.tx_dropped++; - if (!brutal) { - spin_unlock_irqrestore(&chain->lock, flags); - return 1; - } - } - - chain->tail = descr->next; - hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_NOT_IN_USE; - skb = descr->skb; - descr->skb = NULL; - buf_addr = hwdescr->buf_addr; - spin_unlock_irqrestore(&chain->lock, flags); - - /* unmap the skb */ - if (skb) { - dma_unmap_single(&card->pdev->dev, buf_addr, skb->len, - DMA_TO_DEVICE); - dev_consume_skb_any(skb); - } - } - return 0; -} - -/** - * spider_net_kick_tx_dma - enables TX DMA processing - * @card: card structure - * - * This routine will start the transmit DMA running if - * it is not already running. This routine ned only be - * called when queueing a new packet to an empty tx queue. - * Writes the current tx chain head as start address - * of the tx descriptor chain and enables the transmission - * DMA engine. - */ -static inline void -spider_net_kick_tx_dma(struct spider_net_card *card) -{ - struct spider_net_descr *descr; - - if (spider_net_read_reg(card, SPIDER_NET_GDTDMACCNTR) & - SPIDER_NET_TX_DMA_EN) - goto out; - - descr = card->tx_chain.tail; - for (;;) { - if (spider_net_get_descr_status(descr->hwdescr) == - SPIDER_NET_DESCR_CARDOWNED) { - spider_net_write_reg(card, SPIDER_NET_GDTDCHA, - descr->bus_addr); - spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR, - SPIDER_NET_DMA_TX_VALUE); - break; - } - if (descr == card->tx_chain.head) - break; - descr = descr->next; - } - -out: - mod_timer(&card->tx_timer, jiffies + SPIDER_NET_TX_TIMER); -} - -/** - * spider_net_xmit - transmits a frame over the device - * @skb: packet to send out - * @netdev: interface device structure - * - * returns NETDEV_TX_OK on success, NETDEV_TX_BUSY on failure - */ -static netdev_tx_t -spider_net_xmit(struct sk_buff *skb, struct net_device *netdev) -{ - int cnt; - struct spider_net_card *card = netdev_priv(netdev); - - spider_net_release_tx_chain(card, 0); - - if (spider_net_prepare_tx_descr(card, skb) != 0) { - netdev->stats.tx_dropped++; - netif_stop_queue(netdev); - return NETDEV_TX_BUSY; - } - - cnt = spider_net_set_low_watermark(card); - if (cnt < 5) - spider_net_kick_tx_dma(card); - return NETDEV_TX_OK; -} - -/** - * spider_net_cleanup_tx_ring - cleans up the TX ring - * @t: timer context used to obtain the pointer to net card data structure - * - * spider_net_cleanup_tx_ring is called by either the tx_timer - * or from the NAPI polling routine. - * This routine releases resources associted with transmitted - * packets, including updating the queue tail pointer. - */ -static void -spider_net_cleanup_tx_ring(struct timer_list *t) -{ - struct spider_net_card *card = from_timer(card, t, tx_timer); - if ((spider_net_release_tx_chain(card, 0) != 0) && - (card->netdev->flags & IFF_UP)) { - spider_net_kick_tx_dma(card); - netif_wake_queue(card->netdev); - } -} - -/** - * spider_net_do_ioctl - called for device ioctls - * @netdev: interface device structure - * @ifr: request parameter structure for ioctl - * @cmd: command code for ioctl - * - * returns 0 on success, <0 on failure. Currently, we have no special ioctls. - * -EOPNOTSUPP is returned, if an unknown ioctl was requested - */ -static int -spider_net_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) -{ - switch (cmd) { - default: - return -EOPNOTSUPP; - } -} - -/** - * spider_net_pass_skb_up - takes an skb from a descriptor and passes it on - * @descr: descriptor to process - * @card: card structure - * - * Fills out skb structure and passes the data to the stack. - * The descriptor state is not changed. - */ -static void -spider_net_pass_skb_up(struct spider_net_descr *descr, - struct spider_net_card *card) -{ - struct spider_net_hw_descr *hwdescr = descr->hwdescr; - struct sk_buff *skb = descr->skb; - struct net_device *netdev = card->netdev; - u32 data_status = hwdescr->data_status; - u32 data_error = hwdescr->data_error; - - skb_put(skb, hwdescr->valid_size); - - /* the card seems to add 2 bytes of junk in front - * of the ethernet frame - */ -#define SPIDER_MISALIGN 2 - skb_pull(skb, SPIDER_MISALIGN); - skb->protocol = eth_type_trans(skb, netdev); - - /* checksum offload */ - skb_checksum_none_assert(skb); - if (netdev->features & NETIF_F_RXCSUM) { - if ( ( (data_status & SPIDER_NET_DATA_STATUS_CKSUM_MASK) == - SPIDER_NET_DATA_STATUS_CKSUM_MASK) && - !(data_error & SPIDER_NET_DATA_ERR_CKSUM_MASK)) - skb->ip_summed = CHECKSUM_UNNECESSARY; - } - - if (data_status & SPIDER_NET_VLAN_PACKET) { - /* further enhancements: HW-accel VLAN */ - } - - /* update netdevice statistics */ - netdev->stats.rx_packets++; - netdev->stats.rx_bytes += skb->len; - - /* pass skb up to stack */ - netif_receive_skb(skb); -} - -static void show_rx_chain(struct spider_net_card *card) -{ - struct spider_net_descr_chain *chain = &card->rx_chain; - struct spider_net_descr *start= chain->tail; - struct spider_net_descr *descr= start; - struct spider_net_hw_descr *hwd = start->hwdescr; - struct device *dev = &card->netdev->dev; - u32 curr_desc, next_desc; - int status; - - int tot = 0; - int cnt = 0; - int off = start - chain->ring; - int cstat = hwd->dmac_cmd_status; - - dev_info(dev, "Total number of descrs=%d\n", - chain->num_desc); - dev_info(dev, "Chain tail located at descr=%d, status=0x%x\n", - off, cstat); - - curr_desc = spider_net_read_reg(card, SPIDER_NET_GDACTDPA); - next_desc = spider_net_read_reg(card, SPIDER_NET_GDACNEXTDA); - - status = cstat; - do - { - hwd = descr->hwdescr; - off = descr - chain->ring; - status = hwd->dmac_cmd_status; - - if (descr == chain->head) - dev_info(dev, "Chain head is at %d, head status=0x%x\n", - off, status); - - if (curr_desc == descr->bus_addr) - dev_info(dev, "HW curr desc (GDACTDPA) is at %d, status=0x%x\n", - off, status); - - if (next_desc == descr->bus_addr) - dev_info(dev, "HW next desc (GDACNEXTDA) is at %d, status=0x%x\n", - off, status); - - if (hwd->next_descr_addr == 0) - dev_info(dev, "chain is cut at %d\n", off); - - if (cstat != status) { - int from = (chain->num_desc + off - cnt) % chain->num_desc; - int to = (chain->num_desc + off - 1) % chain->num_desc; - dev_info(dev, "Have %d (from %d to %d) descrs " - "with stat=0x%08x\n", cnt, from, to, cstat); - cstat = status; - cnt = 0; - } - - cnt ++; - tot ++; - descr = descr->next; - } while (descr != start); - - dev_info(dev, "Last %d descrs with stat=0x%08x " - "for a total of %d descrs\n", cnt, cstat, tot); - -#ifdef DEBUG - /* Now dump the whole ring */ - descr = start; - do - { - struct spider_net_hw_descr *hwd = descr->hwdescr; - status = spider_net_get_descr_status(hwd); - cnt = descr - chain->ring; - dev_info(dev, "Descr %d stat=0x%08x skb=%p\n", - cnt, status, descr->skb); - dev_info(dev, "bus addr=%08x buf addr=%08x sz=%d\n", - descr->bus_addr, hwd->buf_addr, hwd->buf_size); - dev_info(dev, "next=%08x result sz=%d valid sz=%d\n", - hwd->next_descr_addr, hwd->result_size, - hwd->valid_size); - dev_info(dev, "dmac=%08x data stat=%08x data err=%08x\n", - hwd->dmac_cmd_status, hwd->data_status, - hwd->data_error); - dev_info(dev, "\n"); - - descr = descr->next; - } while (descr != start); -#endif - -} - -/** - * spider_net_resync_head_ptr - Advance head ptr past empty descrs - * @card: card structure - * - * If the driver fails to keep up and empty the queue, then the - * hardware wil run out of room to put incoming packets. This - * will cause the hardware to skip descrs that are full (instead - * of halting/retrying). Thus, once the driver runs, it wil need - * to "catch up" to where the hardware chain pointer is at. - */ -static void spider_net_resync_head_ptr(struct spider_net_card *card) -{ - unsigned long flags; - struct spider_net_descr_chain *chain = &card->rx_chain; - struct spider_net_descr *descr; - int i, status; - - /* Advance head pointer past any empty descrs */ - descr = chain->head; - status = spider_net_get_descr_status(descr->hwdescr); - - if (status == SPIDER_NET_DESCR_NOT_IN_USE) - return; - - spin_lock_irqsave(&chain->lock, flags); - - descr = chain->head; - status = spider_net_get_descr_status(descr->hwdescr); - for (i=0; inum_desc; i++) { - if (status != SPIDER_NET_DESCR_CARDOWNED) break; - descr = descr->next; - status = spider_net_get_descr_status(descr->hwdescr); - } - chain->head = descr; - - spin_unlock_irqrestore(&chain->lock, flags); -} - -static int spider_net_resync_tail_ptr(struct spider_net_card *card) -{ - struct spider_net_descr_chain *chain = &card->rx_chain; - struct spider_net_descr *descr; - int i, status; - - /* Advance tail pointer past any empty and reaped descrs */ - descr = chain->tail; - status = spider_net_get_descr_status(descr->hwdescr); - - for (i=0; inum_desc; i++) { - if ((status != SPIDER_NET_DESCR_CARDOWNED) && - (status != SPIDER_NET_DESCR_NOT_IN_USE)) break; - descr = descr->next; - status = spider_net_get_descr_status(descr->hwdescr); - } - chain->tail = descr; - - if ((i == chain->num_desc) || (i == 0)) - return 1; - return 0; -} - -/** - * spider_net_decode_one_descr - processes an RX descriptor - * @card: card structure - * - * Returns 1 if a packet has been sent to the stack, otherwise 0. - * - * Processes an RX descriptor by iommu-unmapping the data buffer - * and passing the packet up to the stack. This function is called - * in softirq context, e.g. either bottom half from interrupt or - * NAPI polling context. - */ -static int -spider_net_decode_one_descr(struct spider_net_card *card) -{ - struct net_device *dev = card->netdev; - struct spider_net_descr_chain *chain = &card->rx_chain; - struct spider_net_descr *descr = chain->tail; - struct spider_net_hw_descr *hwdescr = descr->hwdescr; - u32 hw_buf_addr; - int status; - - status = spider_net_get_descr_status(hwdescr); - - /* Nothing in the descriptor, or ring must be empty */ - if ((status == SPIDER_NET_DESCR_CARDOWNED) || - (status == SPIDER_NET_DESCR_NOT_IN_USE)) - return 0; - - /* descriptor definitively used -- move on tail */ - chain->tail = descr->next; - - /* unmap descriptor */ - hw_buf_addr = hwdescr->buf_addr; - hwdescr->buf_addr = 0xffffffff; - dma_unmap_single(&card->pdev->dev, hw_buf_addr, SPIDER_NET_MAX_FRAME, - DMA_FROM_DEVICE); - - if ( (status == SPIDER_NET_DESCR_RESPONSE_ERROR) || - (status == SPIDER_NET_DESCR_PROTECTION_ERROR) || - (status == SPIDER_NET_DESCR_FORCE_END) ) { - if (netif_msg_rx_err(card)) - dev_err(&dev->dev, - "dropping RX descriptor with state %d\n", status); - dev->stats.rx_dropped++; - goto bad_desc; - } - - if ( (status != SPIDER_NET_DESCR_COMPLETE) && - (status != SPIDER_NET_DESCR_FRAME_END) ) { - if (netif_msg_rx_err(card)) - dev_err(&card->netdev->dev, - "RX descriptor with unknown state %d\n", status); - card->spider_stats.rx_desc_unk_state++; - goto bad_desc; - } - - /* The cases we'll throw away the packet immediately */ - if (hwdescr->data_error & SPIDER_NET_DESTROY_RX_FLAGS) { - if (netif_msg_rx_err(card)) - dev_err(&card->netdev->dev, - "error in received descriptor found, " - "data_status=x%08x, data_error=x%08x\n", - hwdescr->data_status, hwdescr->data_error); - goto bad_desc; - } - - if (hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_BAD_STATUS) { - dev_err(&card->netdev->dev, "bad status, cmd_status=x%08x\n", - hwdescr->dmac_cmd_status); - pr_err("buf_addr=x%08x\n", hw_buf_addr); - pr_err("buf_size=x%08x\n", hwdescr->buf_size); - pr_err("next_descr_addr=x%08x\n", hwdescr->next_descr_addr); - pr_err("result_size=x%08x\n", hwdescr->result_size); - pr_err("valid_size=x%08x\n", hwdescr->valid_size); - pr_err("data_status=x%08x\n", hwdescr->data_status); - pr_err("data_error=x%08x\n", hwdescr->data_error); - pr_err("which=%ld\n", descr - card->rx_chain.ring); - - card->spider_stats.rx_desc_error++; - goto bad_desc; - } - - /* Ok, we've got a packet in descr */ - spider_net_pass_skb_up(descr, card); - descr->skb = NULL; - hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE; - return 1; - -bad_desc: - if (netif_msg_rx_err(card)) - show_rx_chain(card); - dev_kfree_skb_irq(descr->skb); - descr->skb = NULL; - hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE; - return 0; -} - -/** - * spider_net_poll - NAPI poll function called by the stack to return packets - * @napi: napi device structure - * @budget: number of packets we can pass to the stack at most - * - * returns 0 if no more packets available to the driver/stack. Returns 1, - * if the quota is exceeded, but the driver has still packets. - * - * spider_net_poll returns all packets from the rx descriptors to the stack - * (using netif_receive_skb). If all/enough packets are up, the driver - * reenables interrupts and returns 0. If not, 1 is returned. - */ -static int spider_net_poll(struct napi_struct *napi, int budget) -{ - struct spider_net_card *card = container_of(napi, struct spider_net_card, napi); - int packets_done = 0; - - while (packets_done < budget) { - if (!spider_net_decode_one_descr(card)) - break; - - packets_done++; - } - - if ((packets_done == 0) && (card->num_rx_ints != 0)) { - if (!spider_net_resync_tail_ptr(card)) - packets_done = budget; - spider_net_resync_head_ptr(card); - } - card->num_rx_ints = 0; - - spider_net_refill_rx_chain(card); - spider_net_enable_rxdmac(card); - - spider_net_cleanup_tx_ring(&card->tx_timer); - - /* if all packets are in the stack, enable interrupts and return 0 */ - /* if not, return 1 */ - if (packets_done < budget) { - napi_complete_done(napi, packets_done); - spider_net_rx_irq_on(card); - card->ignore_rx_ramfull = 0; - } - - return packets_done; -} - -/** - * spider_net_set_mac - sets the MAC of an interface - * @netdev: interface device structure - * @p: pointer to new MAC address - * - * Returns 0 on success, <0 on failure. Currently, we don't support this - * and will always return EOPNOTSUPP. - */ -static int -spider_net_set_mac(struct net_device *netdev, void *p) -{ - struct spider_net_card *card = netdev_priv(netdev); - u32 macl, macu, regvalue; - struct sockaddr *addr = p; - - if (!is_valid_ether_addr(addr->sa_data)) - return -EADDRNOTAVAIL; - - eth_hw_addr_set(netdev, addr->sa_data); - - /* switch off GMACTPE and GMACRPE */ - regvalue = spider_net_read_reg(card, SPIDER_NET_GMACOPEMD); - regvalue &= ~((1 << 5) | (1 << 6)); - spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, regvalue); - - /* write mac */ - macu = (netdev->dev_addr[0]<<24) + (netdev->dev_addr[1]<<16) + - (netdev->dev_addr[2]<<8) + (netdev->dev_addr[3]); - macl = (netdev->dev_addr[4]<<8) + (netdev->dev_addr[5]); - spider_net_write_reg(card, SPIDER_NET_GMACUNIMACU, macu); - spider_net_write_reg(card, SPIDER_NET_GMACUNIMACL, macl); - - /* switch GMACTPE and GMACRPE back on */ - regvalue = spider_net_read_reg(card, SPIDER_NET_GMACOPEMD); - regvalue |= ((1 << 5) | (1 << 6)); - spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, regvalue); - - spider_net_set_promisc(card); - - return 0; -} - -/** - * spider_net_link_reset - * @netdev: net device structure - * - * This is called when the PHY_LINK signal is asserted. For the blade this is - * not connected so we should never get here. - * - */ -static void -spider_net_link_reset(struct net_device *netdev) -{ - - struct spider_net_card *card = netdev_priv(netdev); - - del_timer_sync(&card->aneg_timer); - - /* clear interrupt, block further interrupts */ - spider_net_write_reg(card, SPIDER_NET_GMACST, - spider_net_read_reg(card, SPIDER_NET_GMACST)); - spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0); - - /* reset phy and setup aneg */ - card->aneg_count = 0; - card->medium = BCM54XX_COPPER; - spider_net_setup_aneg(card); - mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER); - -} - -/** - * spider_net_handle_error_irq - handles errors raised by an interrupt - * @card: card structure - * @status_reg: interrupt status register 0 (GHIINT0STS) - * @error_reg1: interrupt status register 1 (GHIINT1STS) - * @error_reg2: interrupt status register 2 (GHIINT2STS) - * - * spider_net_handle_error_irq treats or ignores all error conditions - * found when an interrupt is presented - */ -static void -spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg, - u32 error_reg1, u32 error_reg2) -{ - u32 i; - int show_error = 1; - - /* check GHIINT0STS ************************************/ - if (status_reg) - for (i = 0; i < 32; i++) - if (status_reg & (1<netdev->dev, "PHY write queue full\n"); - show_error = 0; - break; - - /* case SPIDER_NET_GRMDADRINT: not used. print a message */ - /* case SPIDER_NET_GRMARPINT: not used. print a message */ - /* case SPIDER_NET_GRMMPINT: not used. print a message */ - - case SPIDER_NET_GDTDEN0INT: - /* someone has set TX_DMA_EN to 0 */ - show_error = 0; - break; - - case SPIDER_NET_GDDDEN0INT: - case SPIDER_NET_GDCDEN0INT: - case SPIDER_NET_GDBDEN0INT: - case SPIDER_NET_GDADEN0INT: - /* someone has set RX_DMA_EN to 0 */ - show_error = 0; - break; - - /* RX interrupts */ - case SPIDER_NET_GDDFDCINT: - case SPIDER_NET_GDCFDCINT: - case SPIDER_NET_GDBFDCINT: - case SPIDER_NET_GDAFDCINT: - /* case SPIDER_NET_GDNMINT: not used. print a message */ - /* case SPIDER_NET_GCNMINT: not used. print a message */ - /* case SPIDER_NET_GBNMINT: not used. print a message */ - /* case SPIDER_NET_GANMINT: not used. print a message */ - /* case SPIDER_NET_GRFNMINT: not used. print a message */ - show_error = 0; - break; - - /* TX interrupts */ - case SPIDER_NET_GDTFDCINT: - show_error = 0; - break; - case SPIDER_NET_GTTEDINT: - show_error = 0; - break; - case SPIDER_NET_GDTDCEINT: - /* chain end. If a descriptor should be sent, kick off - * tx dma - if (card->tx_chain.tail != card->tx_chain.head) - spider_net_kick_tx_dma(card); - */ - show_error = 0; - break; - - /* case SPIDER_NET_G1TMCNTINT: not used. print a message */ - /* case SPIDER_NET_GFREECNTINT: not used. print a message */ - } - - /* check GHIINT1STS ************************************/ - if (error_reg1) - for (i = 0; i < 32; i++) - if (error_reg1 & (1<ignore_rx_ramfull == 0) { - card->ignore_rx_ramfull = 1; - spider_net_resync_head_ptr(card); - spider_net_refill_rx_chain(card); - spider_net_enable_rxdmac(card); - card->num_rx_ints ++; - napi_schedule(&card->napi); - } - show_error = 0; - break; - - /* case SPIDER_NET_GTMSHTINT: problem, print a message */ - case SPIDER_NET_GDTINVDINT: - /* allrighty. tx from previous descr ok */ - show_error = 0; - break; - - /* chain end */ - case SPIDER_NET_GDDDCEINT: - case SPIDER_NET_GDCDCEINT: - case SPIDER_NET_GDBDCEINT: - case SPIDER_NET_GDADCEINT: - spider_net_resync_head_ptr(card); - spider_net_refill_rx_chain(card); - spider_net_enable_rxdmac(card); - card->num_rx_ints ++; - napi_schedule(&card->napi); - show_error = 0; - break; - - /* invalid descriptor */ - case SPIDER_NET_GDDINVDINT: - case SPIDER_NET_GDCINVDINT: - case SPIDER_NET_GDBINVDINT: - case SPIDER_NET_GDAINVDINT: - /* Could happen when rx chain is full */ - spider_net_resync_head_ptr(card); - spider_net_refill_rx_chain(card); - spider_net_enable_rxdmac(card); - card->num_rx_ints ++; - napi_schedule(&card->napi); - show_error = 0; - break; - - /* case SPIDER_NET_GDTRSERINT: problem, print a message */ - /* case SPIDER_NET_GDDRSERINT: problem, print a message */ - /* case SPIDER_NET_GDCRSERINT: problem, print a message */ - /* case SPIDER_NET_GDBRSERINT: problem, print a message */ - /* case SPIDER_NET_GDARSERINT: problem, print a message */ - /* case SPIDER_NET_GDSERINT: problem, print a message */ - /* case SPIDER_NET_GDTPTERINT: problem, print a message */ - /* case SPIDER_NET_GDDPTERINT: problem, print a message */ - /* case SPIDER_NET_GDCPTERINT: problem, print a message */ - /* case SPIDER_NET_GDBPTERINT: problem, print a message */ - /* case SPIDER_NET_GDAPTERINT: problem, print a message */ - default: - show_error = 1; - break; - } - - /* check GHIINT2STS ************************************/ - if (error_reg2) - for (i = 0; i < 32; i++) - if (error_reg2 & (1<netdev->dev, "Error interrupt, GHIINT0STS = 0x%08x, " - "GHIINT1STS = 0x%08x, GHIINT2STS = 0x%08x\n", - status_reg, error_reg1, error_reg2); - - /* clear interrupt sources */ - spider_net_write_reg(card, SPIDER_NET_GHIINT1STS, error_reg1); - spider_net_write_reg(card, SPIDER_NET_GHIINT2STS, error_reg2); -} - -/** - * spider_net_interrupt - interrupt handler for spider_net - * @irq: interrupt number - * @ptr: pointer to net_device - * - * returns IRQ_HANDLED, if interrupt was for driver, or IRQ_NONE, if no - * interrupt found raised by card. - * - * This is the interrupt handler, that turns off - * interrupts for this device and makes the stack poll the driver - */ -static irqreturn_t -spider_net_interrupt(int irq, void *ptr) -{ - struct net_device *netdev = ptr; - struct spider_net_card *card = netdev_priv(netdev); - u32 status_reg, error_reg1, error_reg2; - - status_reg = spider_net_read_reg(card, SPIDER_NET_GHIINT0STS); - error_reg1 = spider_net_read_reg(card, SPIDER_NET_GHIINT1STS); - error_reg2 = spider_net_read_reg(card, SPIDER_NET_GHIINT2STS); - - if (!(status_reg & SPIDER_NET_INT0_MASK_VALUE) && - !(error_reg1 & SPIDER_NET_INT1_MASK_VALUE) && - !(error_reg2 & SPIDER_NET_INT2_MASK_VALUE)) - return IRQ_NONE; - - if (status_reg & SPIDER_NET_RXINT ) { - spider_net_rx_irq_off(card); - napi_schedule(&card->napi); - card->num_rx_ints ++; - } - if (status_reg & SPIDER_NET_TXINT) - napi_schedule(&card->napi); - - if (status_reg & SPIDER_NET_LINKINT) - spider_net_link_reset(netdev); - - if (status_reg & SPIDER_NET_ERRINT ) - spider_net_handle_error_irq(card, status_reg, - error_reg1, error_reg2); - - /* clear interrupt sources */ - spider_net_write_reg(card, SPIDER_NET_GHIINT0STS, status_reg); - - return IRQ_HANDLED; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/** - * spider_net_poll_controller - artificial interrupt for netconsole etc. - * @netdev: interface device structure - * - * see Documentation/networking/netconsole.rst - */ -static void -spider_net_poll_controller(struct net_device *netdev) -{ - disable_irq(netdev->irq); - spider_net_interrupt(netdev->irq, netdev); - enable_irq(netdev->irq); -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - -/** - * spider_net_enable_interrupts - enable interrupts - * @card: card structure - * - * spider_net_enable_interrupt enables several interrupts - */ -static void -spider_net_enable_interrupts(struct spider_net_card *card) -{ - spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, - SPIDER_NET_INT0_MASK_VALUE); - spider_net_write_reg(card, SPIDER_NET_GHIINT1MSK, - SPIDER_NET_INT1_MASK_VALUE); - spider_net_write_reg(card, SPIDER_NET_GHIINT2MSK, - SPIDER_NET_INT2_MASK_VALUE); -} - -/** - * spider_net_disable_interrupts - disable interrupts - * @card: card structure - * - * spider_net_disable_interrupts disables all the interrupts - */ -static void -spider_net_disable_interrupts(struct spider_net_card *card) -{ - spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, 0); - spider_net_write_reg(card, SPIDER_NET_GHIINT1MSK, 0); - spider_net_write_reg(card, SPIDER_NET_GHIINT2MSK, 0); - spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0); -} - -/** - * spider_net_init_card - initializes the card - * @card: card structure - * - * spider_net_init_card initializes the card so that other registers can - * be used - */ -static void -spider_net_init_card(struct spider_net_card *card) -{ - spider_net_write_reg(card, SPIDER_NET_CKRCTRL, - SPIDER_NET_CKRCTRL_STOP_VALUE); - - spider_net_write_reg(card, SPIDER_NET_CKRCTRL, - SPIDER_NET_CKRCTRL_RUN_VALUE); - - /* trigger ETOMOD signal */ - spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, - spider_net_read_reg(card, SPIDER_NET_GMACOPEMD) | 0x4); - - spider_net_disable_interrupts(card); -} - -/** - * spider_net_enable_card - enables the card by setting all kinds of regs - * @card: card structure - * - * spider_net_enable_card sets a lot of SMMIO registers to enable the device - */ -static void -spider_net_enable_card(struct spider_net_card *card) -{ - int i; - /* the following array consists of (register),(value) pairs - * that are set in this function. A register of 0 ends the list - */ - u32 regs[][2] = { - { SPIDER_NET_GRESUMINTNUM, 0 }, - { SPIDER_NET_GREINTNUM, 0 }, - - /* set interrupt frame number registers */ - /* clear the single DMA engine registers first */ - { SPIDER_NET_GFAFRMNUM, SPIDER_NET_GFXFRAMES_VALUE }, - { SPIDER_NET_GFBFRMNUM, SPIDER_NET_GFXFRAMES_VALUE }, - { SPIDER_NET_GFCFRMNUM, SPIDER_NET_GFXFRAMES_VALUE }, - { SPIDER_NET_GFDFRMNUM, SPIDER_NET_GFXFRAMES_VALUE }, - /* then set, what we really need */ - { SPIDER_NET_GFFRMNUM, SPIDER_NET_FRAMENUM_VALUE }, - - /* timer counter registers and stuff */ - { SPIDER_NET_GFREECNNUM, 0 }, - { SPIDER_NET_GONETIMENUM, 0 }, - { SPIDER_NET_GTOUTFRMNUM, 0 }, - - /* RX mode setting */ - { SPIDER_NET_GRXMDSET, SPIDER_NET_RXMODE_VALUE }, - /* TX mode setting */ - { SPIDER_NET_GTXMDSET, SPIDER_NET_TXMODE_VALUE }, - /* IPSEC mode setting */ - { SPIDER_NET_GIPSECINIT, SPIDER_NET_IPSECINIT_VALUE }, - - { SPIDER_NET_GFTRESTRT, SPIDER_NET_RESTART_VALUE }, - - { SPIDER_NET_GMRWOLCTRL, 0 }, - { SPIDER_NET_GTESTMD, 0x10000000 }, - { SPIDER_NET_GTTQMSK, 0x00400040 }, - - { SPIDER_NET_GMACINTEN, 0 }, - - /* flow control stuff */ - { SPIDER_NET_GMACAPAUSE, SPIDER_NET_MACAPAUSE_VALUE }, - { SPIDER_NET_GMACTXPAUSE, SPIDER_NET_TXPAUSE_VALUE }, - - { SPIDER_NET_GMACBSTLMT, SPIDER_NET_BURSTLMT_VALUE }, - { 0, 0} - }; - - i = 0; - while (regs[i][0]) { - spider_net_write_reg(card, regs[i][0], regs[i][1]); - i++; - } - - /* clear unicast filter table entries 1 to 14 */ - for (i = 1; i <= 14; i++) { - spider_net_write_reg(card, - SPIDER_NET_GMRUAFILnR + i * 8, - 0x00080000); - spider_net_write_reg(card, - SPIDER_NET_GMRUAFILnR + i * 8 + 4, - 0x00000000); - } - - spider_net_write_reg(card, SPIDER_NET_GMRUA0FIL15R, 0x08080000); - - spider_net_write_reg(card, SPIDER_NET_ECMODE, SPIDER_NET_ECMODE_VALUE); - - /* set chain tail address for RX chains and - * enable DMA - */ - spider_net_enable_rxchtails(card); - spider_net_enable_rxdmac(card); - - spider_net_write_reg(card, SPIDER_NET_GRXDMAEN, SPIDER_NET_WOL_VALUE); - - spider_net_write_reg(card, SPIDER_NET_GMACLENLMT, - SPIDER_NET_LENLMT_VALUE); - spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, - SPIDER_NET_OPMODE_VALUE); - - spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR, - SPIDER_NET_GDTBSTA); -} - -/** - * spider_net_download_firmware - loads firmware into the adapter - * @card: card structure - * @firmware_ptr: pointer to firmware data - * - * spider_net_download_firmware loads the firmware data into the - * adapter. It assumes the length etc. to be allright. - */ -static int -spider_net_download_firmware(struct spider_net_card *card, - const void *firmware_ptr) -{ - int sequencer, i; - const u32 *fw_ptr = firmware_ptr; - - /* stop sequencers */ - spider_net_write_reg(card, SPIDER_NET_GSINIT, - SPIDER_NET_STOP_SEQ_VALUE); - - for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS; - sequencer++) { - spider_net_write_reg(card, - SPIDER_NET_GSnPRGADR + sequencer * 8, 0); - for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) { - spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT + - sequencer * 8, *fw_ptr); - fw_ptr++; - } - } - - if (spider_net_read_reg(card, SPIDER_NET_GSINIT)) - return -EIO; - - spider_net_write_reg(card, SPIDER_NET_GSINIT, - SPIDER_NET_RUN_SEQ_VALUE); - - return 0; -} - -/** - * spider_net_init_firmware - reads in firmware parts - * @card: card structure - * - * Returns 0 on success, <0 on failure - * - * spider_net_init_firmware opens the sequencer firmware and does some basic - * checks. This function opens and releases the firmware structure. A call - * to download the firmware is performed before the release. - * - * Firmware format - * =============== - * spider_fw.bin is expected to be a file containing 6*1024*4 bytes, 4k being - * the program for each sequencer. Use the command - * tail -q -n +2 Seq_code1_0x088.txt Seq_code2_0x090.txt \ - * Seq_code3_0x098.txt Seq_code4_0x0A0.txt Seq_code5_0x0A8.txt \ - * Seq_code6_0x0B0.txt | xxd -r -p -c4 > spider_fw.bin - * - * to generate spider_fw.bin, if you have sequencer programs with something - * like the following contents for each sequencer: - * - * - * - * ... - * <1024th 4-BYTES-WORD FOR SEQUENCER> - */ -static int -spider_net_init_firmware(struct spider_net_card *card) -{ - struct firmware *firmware = NULL; - struct device_node *dn; - const u8 *fw_prop = NULL; - int err = -ENOENT; - int fw_size; - - if (request_firmware((const struct firmware **)&firmware, - SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) == 0) { - if ( (firmware->size != SPIDER_NET_FIRMWARE_LEN) && - netif_msg_probe(card) ) { - dev_err(&card->netdev->dev, - "Incorrect size of spidernet firmware in " \ - "filesystem. Looking in host firmware...\n"); - goto try_host_fw; - } - err = spider_net_download_firmware(card, firmware->data); - - release_firmware(firmware); - if (err) - goto try_host_fw; - - goto done; - } - -try_host_fw: - dn = pci_device_to_OF_node(card->pdev); - if (!dn) - goto out_err; - - fw_prop = of_get_property(dn, "firmware", &fw_size); - if (!fw_prop) - goto out_err; - - if ( (fw_size != SPIDER_NET_FIRMWARE_LEN) && - netif_msg_probe(card) ) { - dev_err(&card->netdev->dev, - "Incorrect size of spidernet firmware in host firmware\n"); - goto done; - } - - err = spider_net_download_firmware(card, fw_prop); - -done: - return err; -out_err: - if (netif_msg_probe(card)) - dev_err(&card->netdev->dev, - "Couldn't find spidernet firmware in filesystem " \ - "or host firmware\n"); - return err; -} - -/** - * spider_net_open - called upon ifonfig up - * @netdev: interface device structure - * - * returns 0 on success, <0 on failure - * - * spider_net_open allocates all the descriptors and memory needed for - * operation, sets up multicast list and enables interrupts - */ -int -spider_net_open(struct net_device *netdev) -{ - struct spider_net_card *card = netdev_priv(netdev); - int result; - - result = spider_net_init_firmware(card); - if (result) - goto init_firmware_failed; - - /* start probing with copper */ - card->aneg_count = 0; - card->medium = BCM54XX_COPPER; - spider_net_setup_aneg(card); - if (card->phy.def->phy_id) - mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER); - - result = spider_net_init_chain(card, &card->tx_chain); - if (result) - goto alloc_tx_failed; - card->low_watermark = NULL; - - result = spider_net_init_chain(card, &card->rx_chain); - if (result) - goto alloc_rx_failed; - - /* Allocate rx skbs */ - result = spider_net_alloc_rx_skbs(card); - if (result) - goto alloc_skbs_failed; - - spider_net_set_multi(netdev); - - /* further enhancement: setup hw vlan, if needed */ - - result = -EBUSY; - if (request_irq(netdev->irq, spider_net_interrupt, - IRQF_SHARED, netdev->name, netdev)) - goto register_int_failed; - - spider_net_enable_card(card); - - netif_start_queue(netdev); - netif_carrier_on(netdev); - napi_enable(&card->napi); - - spider_net_enable_interrupts(card); - - return 0; - -register_int_failed: - spider_net_free_rx_chain_contents(card); -alloc_skbs_failed: - spider_net_free_chain(card, &card->rx_chain); -alloc_rx_failed: - spider_net_free_chain(card, &card->tx_chain); -alloc_tx_failed: - del_timer_sync(&card->aneg_timer); -init_firmware_failed: - return result; -} - -/** - * spider_net_link_phy - * @t: timer context used to obtain the pointer to net card data structure - */ -static void spider_net_link_phy(struct timer_list *t) -{ - struct spider_net_card *card = from_timer(card, t, aneg_timer); - struct mii_phy *phy = &card->phy; - - /* if link didn't come up after SPIDER_NET_ANEG_TIMEOUT tries, setup phy again */ - if (card->aneg_count > SPIDER_NET_ANEG_TIMEOUT) { - - pr_debug("%s: link is down trying to bring it up\n", - card->netdev->name); - - switch (card->medium) { - case BCM54XX_COPPER: - /* enable fiber with autonegotiation first */ - if (phy->def->ops->enable_fiber) - phy->def->ops->enable_fiber(phy, 1); - card->medium = BCM54XX_FIBER; - break; - - case BCM54XX_FIBER: - /* fiber didn't come up, try to disable fiber autoneg */ - if (phy->def->ops->enable_fiber) - phy->def->ops->enable_fiber(phy, 0); - card->medium = BCM54XX_UNKNOWN; - break; - - case BCM54XX_UNKNOWN: - /* copper, fiber with and without failed, - * retry from beginning - */ - spider_net_setup_aneg(card); - card->medium = BCM54XX_COPPER; - break; - } - - card->aneg_count = 0; - mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER); - return; - } - - /* link still not up, try again later */ - if (!(phy->def->ops->poll_link(phy))) { - card->aneg_count++; - mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER); - return; - } - - /* link came up, get abilities */ - phy->def->ops->read_link(phy); - - spider_net_write_reg(card, SPIDER_NET_GMACST, - spider_net_read_reg(card, SPIDER_NET_GMACST)); - spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0x4); - - if (phy->speed == 1000) - spider_net_write_reg(card, SPIDER_NET_GMACMODE, 0x00000001); - else - spider_net_write_reg(card, SPIDER_NET_GMACMODE, 0); - - card->aneg_count = 0; - - pr_info("%s: link up, %i Mbps, %s-duplex %sautoneg.\n", - card->netdev->name, phy->speed, - phy->duplex == 1 ? "Full" : "Half", - phy->autoneg == 1 ? "" : "no "); -} - -/** - * spider_net_setup_phy - setup PHY - * @card: card structure - * - * returns 0 on success, <0 on failure - * - * spider_net_setup_phy is used as part of spider_net_probe. - **/ -static int -spider_net_setup_phy(struct spider_net_card *card) -{ - struct mii_phy *phy = &card->phy; - - spider_net_write_reg(card, SPIDER_NET_GDTDMASEL, - SPIDER_NET_DMASEL_VALUE); - spider_net_write_reg(card, SPIDER_NET_GPCCTRL, - SPIDER_NET_PHY_CTRL_VALUE); - - phy->dev = card->netdev; - phy->mdio_read = spider_net_read_phy; - phy->mdio_write = spider_net_write_phy; - - for (phy->mii_id = 1; phy->mii_id <= 31; phy->mii_id++) { - unsigned short id; - id = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR); - if (id != 0x0000 && id != 0xffff) { - if (!sungem_phy_probe(phy, phy->mii_id)) { - pr_info("Found %s.\n", phy->def->name); - break; - } - } - } - - return 0; -} - -/** - * spider_net_workaround_rxramfull - work around firmware bug - * @card: card structure - * - * no return value - **/ -static void -spider_net_workaround_rxramfull(struct spider_net_card *card) -{ - int i, sequencer = 0; - - /* cancel reset */ - spider_net_write_reg(card, SPIDER_NET_CKRCTRL, - SPIDER_NET_CKRCTRL_RUN_VALUE); - - /* empty sequencer data */ - for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS; - sequencer++) { - spider_net_write_reg(card, SPIDER_NET_GSnPRGADR + - sequencer * 8, 0x0); - for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) { - spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT + - sequencer * 8, 0x0); - } - } - - /* set sequencer operation */ - spider_net_write_reg(card, SPIDER_NET_GSINIT, 0x000000fe); - - /* reset */ - spider_net_write_reg(card, SPIDER_NET_CKRCTRL, - SPIDER_NET_CKRCTRL_STOP_VALUE); -} - -/** - * spider_net_stop - called upon ifconfig down - * @netdev: interface device structure - * - * always returns 0 - */ -int -spider_net_stop(struct net_device *netdev) -{ - struct spider_net_card *card = netdev_priv(netdev); - - napi_disable(&card->napi); - netif_carrier_off(netdev); - netif_stop_queue(netdev); - del_timer_sync(&card->tx_timer); - del_timer_sync(&card->aneg_timer); - - spider_net_disable_interrupts(card); - - free_irq(netdev->irq, netdev); - - spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR, - SPIDER_NET_DMA_TX_FEND_VALUE); - - /* turn off DMA, force end */ - spider_net_disable_rxdmac(card); - - /* release chains */ - spider_net_release_tx_chain(card, 1); - spider_net_free_rx_chain_contents(card); - - spider_net_free_chain(card, &card->tx_chain); - spider_net_free_chain(card, &card->rx_chain); - - return 0; -} - -/** - * spider_net_tx_timeout_task - task scheduled by the watchdog timeout - * function (to be called not under interrupt status) - * @work: work context used to obtain the pointer to net card data structure - * - * called as task when tx hangs, resets interface (if interface is up) - */ -static void -spider_net_tx_timeout_task(struct work_struct *work) -{ - struct spider_net_card *card = - container_of(work, struct spider_net_card, tx_timeout_task); - struct net_device *netdev = card->netdev; - - if (!(netdev->flags & IFF_UP)) - goto out; - - netif_device_detach(netdev); - spider_net_stop(netdev); - - spider_net_workaround_rxramfull(card); - spider_net_init_card(card); - - if (spider_net_setup_phy(card)) - goto out; - - spider_net_open(netdev); - spider_net_kick_tx_dma(card); - netif_device_attach(netdev); - -out: - atomic_dec(&card->tx_timeout_task_counter); -} - -/** - * spider_net_tx_timeout - called when the tx timeout watchdog kicks in. - * @netdev: interface device structure - * @txqueue: unused - * - * called, if tx hangs. Schedules a task that resets the interface - */ -static void -spider_net_tx_timeout(struct net_device *netdev, unsigned int txqueue) -{ - struct spider_net_card *card; - - card = netdev_priv(netdev); - atomic_inc(&card->tx_timeout_task_counter); - if (netdev->flags & IFF_UP) - schedule_work(&card->tx_timeout_task); - else - atomic_dec(&card->tx_timeout_task_counter); - card->spider_stats.tx_timeouts++; -} - -static const struct net_device_ops spider_net_ops = { - .ndo_open = spider_net_open, - .ndo_stop = spider_net_stop, - .ndo_start_xmit = spider_net_xmit, - .ndo_set_rx_mode = spider_net_set_multi, - .ndo_set_mac_address = spider_net_set_mac, - .ndo_eth_ioctl = spider_net_do_ioctl, - .ndo_tx_timeout = spider_net_tx_timeout, - .ndo_validate_addr = eth_validate_addr, - /* HW VLAN */ -#ifdef CONFIG_NET_POLL_CONTROLLER - /* poll controller */ - .ndo_poll_controller = spider_net_poll_controller, -#endif /* CONFIG_NET_POLL_CONTROLLER */ -}; - -/** - * spider_net_setup_netdev_ops - initialization of net_device operations - * @netdev: net_device structure - * - * fills out function pointers in the net_device structure - */ -static void -spider_net_setup_netdev_ops(struct net_device *netdev) -{ - netdev->netdev_ops = &spider_net_ops; - netdev->watchdog_timeo = SPIDER_NET_WATCHDOG_TIMEOUT; - /* ethtool ops */ - netdev->ethtool_ops = &spider_net_ethtool_ops; -} - -/** - * spider_net_setup_netdev - initialization of net_device - * @card: card structure - * - * Returns 0 on success or <0 on failure - * - * spider_net_setup_netdev initializes the net_device structure - **/ -static int -spider_net_setup_netdev(struct spider_net_card *card) -{ - int result; - struct net_device *netdev = card->netdev; - struct device_node *dn; - struct sockaddr addr; - const u8 *mac; - - SET_NETDEV_DEV(netdev, &card->pdev->dev); - - pci_set_drvdata(card->pdev, netdev); - - timer_setup(&card->tx_timer, spider_net_cleanup_tx_ring, 0); - netdev->irq = card->pdev->irq; - - card->aneg_count = 0; - timer_setup(&card->aneg_timer, spider_net_link_phy, 0); - - netif_napi_add(netdev, &card->napi, spider_net_poll); - - spider_net_setup_netdev_ops(netdev); - - netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM; - if (SPIDER_NET_RX_CSUM_DEFAULT) - netdev->features |= NETIF_F_RXCSUM; - netdev->features |= NETIF_F_IP_CSUM; - /* some time: NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | - * NETIF_F_HW_VLAN_CTAG_FILTER - */ - netdev->lltx = true; - - /* MTU range: 64 - 2294 */ - netdev->min_mtu = SPIDER_NET_MIN_MTU; - netdev->max_mtu = SPIDER_NET_MAX_MTU; - - netdev->irq = card->pdev->irq; - card->num_rx_ints = 0; - card->ignore_rx_ramfull = 0; - - dn = pci_device_to_OF_node(card->pdev); - if (!dn) - return -EIO; - - mac = of_get_property(dn, "local-mac-address", NULL); - if (!mac) - return -EIO; - memcpy(addr.sa_data, mac, ETH_ALEN); - - result = spider_net_set_mac(netdev, &addr); - if ((result) && (netif_msg_probe(card))) - dev_err(&card->netdev->dev, - "Failed to set MAC address: %i\n", result); - - result = register_netdev(netdev); - if (result) { - if (netif_msg_probe(card)) - dev_err(&card->netdev->dev, - "Couldn't register net_device: %i\n", result); - return result; - } - - if (netif_msg_probe(card)) - pr_info("Initialized device %s.\n", netdev->name); - - return 0; -} - -/** - * spider_net_alloc_card - allocates net_device and card structure - * - * returns the card structure or NULL in case of errors - * - * the card and net_device structures are linked to each other - */ -static struct spider_net_card * -spider_net_alloc_card(void) -{ - struct net_device *netdev; - struct spider_net_card *card; - - netdev = alloc_etherdev(struct_size(card, darray, - size_add(tx_descriptors, rx_descriptors))); - if (!netdev) - return NULL; - - card = netdev_priv(netdev); - card->netdev = netdev; - card->msg_enable = SPIDER_NET_DEFAULT_MSG; - INIT_WORK(&card->tx_timeout_task, spider_net_tx_timeout_task); - init_waitqueue_head(&card->waitq); - atomic_set(&card->tx_timeout_task_counter, 0); - - card->rx_chain.num_desc = rx_descriptors; - card->rx_chain.ring = card->darray; - card->tx_chain.num_desc = tx_descriptors; - card->tx_chain.ring = card->darray + rx_descriptors; - - return card; -} - -/** - * spider_net_undo_pci_setup - releases PCI ressources - * @card: card structure - * - * spider_net_undo_pci_setup releases the mapped regions - */ -static void -spider_net_undo_pci_setup(struct spider_net_card *card) -{ - iounmap(card->regs); - pci_release_regions(card->pdev); -} - -/** - * spider_net_setup_pci_dev - sets up the device in terms of PCI operations - * @pdev: PCI device - * - * Returns the card structure or NULL if any errors occur - * - * spider_net_setup_pci_dev initializes pdev and together with the - * functions called in spider_net_open configures the device so that - * data can be transferred over it - * The net_device structure is attached to the card structure, if the - * function returns without error. - **/ -static struct spider_net_card * -spider_net_setup_pci_dev(struct pci_dev *pdev) -{ - struct spider_net_card *card; - unsigned long mmio_start, mmio_len; - - if (pci_enable_device(pdev)) { - dev_err(&pdev->dev, "Couldn't enable PCI device\n"); - return NULL; - } - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - dev_err(&pdev->dev, - "Couldn't find proper PCI device base address.\n"); - goto out_disable_dev; - } - - if (pci_request_regions(pdev, spider_net_driver_name)) { - dev_err(&pdev->dev, - "Couldn't obtain PCI resources, aborting.\n"); - goto out_disable_dev; - } - - pci_set_master(pdev); - - card = spider_net_alloc_card(); - if (!card) { - dev_err(&pdev->dev, - "Couldn't allocate net_device structure, aborting.\n"); - goto out_release_regions; - } - card->pdev = pdev; - - /* fetch base address and length of first resource */ - mmio_start = pci_resource_start(pdev, 0); - mmio_len = pci_resource_len(pdev, 0); - - card->netdev->mem_start = mmio_start; - card->netdev->mem_end = mmio_start + mmio_len; - card->regs = ioremap(mmio_start, mmio_len); - - if (!card->regs) { - dev_err(&pdev->dev, - "Couldn't obtain PCI resources, aborting.\n"); - goto out_release_regions; - } - - return card; - -out_release_regions: - pci_release_regions(pdev); -out_disable_dev: - pci_disable_device(pdev); - return NULL; -} - -/** - * spider_net_probe - initialization of a device - * @pdev: PCI device - * @ent: entry in the device id list - * - * Returns 0 on success, <0 on failure - * - * spider_net_probe initializes pdev and registers a net_device - * structure for it. After that, the device can be ifconfig'ed up - **/ -static int -spider_net_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - int err = -EIO; - struct spider_net_card *card; - - card = spider_net_setup_pci_dev(pdev); - if (!card) - goto out; - - spider_net_workaround_rxramfull(card); - spider_net_init_card(card); - - err = spider_net_setup_phy(card); - if (err) - goto out_undo_pci; - - err = spider_net_setup_netdev(card); - if (err) - goto out_undo_pci; - - return 0; - -out_undo_pci: - spider_net_undo_pci_setup(card); - free_netdev(card->netdev); -out: - return err; -} - -/** - * spider_net_remove - removal of a device - * @pdev: PCI device - * - * Returns 0 on success, <0 on failure - * - * spider_net_remove is called to remove the device and unregisters the - * net_device - **/ -static void -spider_net_remove(struct pci_dev *pdev) -{ - struct net_device *netdev; - struct spider_net_card *card; - - netdev = pci_get_drvdata(pdev); - card = netdev_priv(netdev); - - wait_event(card->waitq, - atomic_read(&card->tx_timeout_task_counter) == 0); - - unregister_netdev(netdev); - - /* switch off card */ - spider_net_write_reg(card, SPIDER_NET_CKRCTRL, - SPIDER_NET_CKRCTRL_STOP_VALUE); - spider_net_write_reg(card, SPIDER_NET_CKRCTRL, - SPIDER_NET_CKRCTRL_RUN_VALUE); - - spider_net_undo_pci_setup(card); - free_netdev(netdev); -} - -static struct pci_driver spider_net_driver = { - .name = spider_net_driver_name, - .id_table = spider_net_pci_tbl, - .probe = spider_net_probe, - .remove = spider_net_remove -}; - -/** - * spider_net_init - init function when the driver is loaded - * - * spider_net_init registers the device driver - */ -static int __init spider_net_init(void) -{ - printk(KERN_INFO "Spidernet version %s.\n", VERSION); - - if (rx_descriptors < SPIDER_NET_RX_DESCRIPTORS_MIN) { - rx_descriptors = SPIDER_NET_RX_DESCRIPTORS_MIN; - pr_info("adjusting rx descriptors to %i.\n", rx_descriptors); - } - if (rx_descriptors > SPIDER_NET_RX_DESCRIPTORS_MAX) { - rx_descriptors = SPIDER_NET_RX_DESCRIPTORS_MAX; - pr_info("adjusting rx descriptors to %i.\n", rx_descriptors); - } - if (tx_descriptors < SPIDER_NET_TX_DESCRIPTORS_MIN) { - tx_descriptors = SPIDER_NET_TX_DESCRIPTORS_MIN; - pr_info("adjusting tx descriptors to %i.\n", tx_descriptors); - } - if (tx_descriptors > SPIDER_NET_TX_DESCRIPTORS_MAX) { - tx_descriptors = SPIDER_NET_TX_DESCRIPTORS_MAX; - pr_info("adjusting tx descriptors to %i.\n", tx_descriptors); - } - - return pci_register_driver(&spider_net_driver); -} - -/** - * spider_net_cleanup - exit function when driver is unloaded - * - * spider_net_cleanup unregisters the device driver - */ -static void __exit spider_net_cleanup(void) -{ - pci_unregister_driver(&spider_net_driver); -} - -module_init(spider_net_init); -module_exit(spider_net_cleanup); diff --git a/drivers/net/ethernet/toshiba/spider_net.h b/drivers/net/ethernet/toshiba/spider_net.h deleted file mode 100644 index 51948e2b3a34..000000000000 --- a/drivers/net/ethernet/toshiba/spider_net.h +++ /dev/null @@ -1,475 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * Network device driver for Cell Processor-Based Blade and Celleb platform - * - * (C) Copyright IBM Corp. 2005 - * (C) Copyright 2006 TOSHIBA CORPORATION - * - * Authors : Utz Bacher - * Jens Osterkamp - */ - -#ifndef _SPIDER_NET_H -#define _SPIDER_NET_H - -#define VERSION "2.0 B" - -#include - -int spider_net_stop(struct net_device *netdev); -int spider_net_open(struct net_device *netdev); - -extern const struct ethtool_ops spider_net_ethtool_ops; - -extern char spider_net_driver_name[]; - -#define SPIDER_NET_MAX_FRAME 2312 -#define SPIDER_NET_MAX_MTU 2294 -#define SPIDER_NET_MIN_MTU 64 - -#define SPIDER_NET_RXBUF_ALIGN 128 - -#define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 256 -#define SPIDER_NET_RX_DESCRIPTORS_MIN 16 -#define SPIDER_NET_RX_DESCRIPTORS_MAX 512 - -#define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 256 -#define SPIDER_NET_TX_DESCRIPTORS_MIN 16 -#define SPIDER_NET_TX_DESCRIPTORS_MAX 512 - -#define SPIDER_NET_TX_TIMER (HZ/5) -#define SPIDER_NET_ANEG_TIMER (HZ) -#define SPIDER_NET_ANEG_TIMEOUT 5 - -#define SPIDER_NET_RX_CSUM_DEFAULT 1 - -#define SPIDER_NET_WATCHDOG_TIMEOUT 50*HZ - -#define SPIDER_NET_FIRMWARE_SEQS 6 -#define SPIDER_NET_FIRMWARE_SEQWORDS 1024 -#define SPIDER_NET_FIRMWARE_LEN (SPIDER_NET_FIRMWARE_SEQS * \ - SPIDER_NET_FIRMWARE_SEQWORDS * \ - sizeof(u32)) -#define SPIDER_NET_FIRMWARE_NAME "spider_fw.bin" - -/** spider_net SMMIO registers */ -#define SPIDER_NET_GHIINT0STS 0x00000000 -#define SPIDER_NET_GHIINT1STS 0x00000004 -#define SPIDER_NET_GHIINT2STS 0x00000008 -#define SPIDER_NET_GHIINT0MSK 0x00000010 -#define SPIDER_NET_GHIINT1MSK 0x00000014 -#define SPIDER_NET_GHIINT2MSK 0x00000018 - -#define SPIDER_NET_GRESUMINTNUM 0x00000020 -#define SPIDER_NET_GREINTNUM 0x00000024 - -#define SPIDER_NET_GFFRMNUM 0x00000028 -#define SPIDER_NET_GFAFRMNUM 0x0000002c -#define SPIDER_NET_GFBFRMNUM 0x00000030 -#define SPIDER_NET_GFCFRMNUM 0x00000034 -#define SPIDER_NET_GFDFRMNUM 0x00000038 - -/* clear them (don't use it) */ -#define SPIDER_NET_GFREECNNUM 0x0000003c -#define SPIDER_NET_GONETIMENUM 0x00000040 - -#define SPIDER_NET_GTOUTFRMNUM 0x00000044 - -#define SPIDER_NET_GTXMDSET 0x00000050 -#define SPIDER_NET_GPCCTRL 0x00000054 -#define SPIDER_NET_GRXMDSET 0x00000058 -#define SPIDER_NET_GIPSECINIT 0x0000005c -#define SPIDER_NET_GFTRESTRT 0x00000060 -#define SPIDER_NET_GRXDMAEN 0x00000064 -#define SPIDER_NET_GMRWOLCTRL 0x00000068 -#define SPIDER_NET_GPCWOPCMD 0x0000006c -#define SPIDER_NET_GPCROPCMD 0x00000070 -#define SPIDER_NET_GTTFRMCNT 0x00000078 -#define SPIDER_NET_GTESTMD 0x0000007c - -#define SPIDER_NET_GSINIT 0x00000080 -#define SPIDER_NET_GSnPRGADR 0x00000084 -#define SPIDER_NET_GSnPRGDAT 0x00000088 - -#define SPIDER_NET_GMACOPEMD 0x00000100 -#define SPIDER_NET_GMACLENLMT 0x00000108 -#define SPIDER_NET_GMACST 0x00000110 -#define SPIDER_NET_GMACINTEN 0x00000118 -#define SPIDER_NET_GMACPHYCTRL 0x00000120 - -#define SPIDER_NET_GMACAPAUSE 0x00000154 -#define SPIDER_NET_GMACTXPAUSE 0x00000164 - -#define SPIDER_NET_GMACMODE 0x000001b0 -#define SPIDER_NET_GMACBSTLMT 0x000001b4 - -#define SPIDER_NET_GMACUNIMACU 0x000001c0 -#define SPIDER_NET_GMACUNIMACL 0x000001c8 - -#define SPIDER_NET_GMRMHFILnR 0x00000400 -#define SPIDER_NET_MULTICAST_HASHES 256 - -#define SPIDER_NET_GMRUAFILnR 0x00000500 -#define SPIDER_NET_GMRUA0FIL15R 0x00000578 - -#define SPIDER_NET_GTTQMSK 0x00000934 - -/* RX DMA controller registers, all 0x00000a.. are for DMA controller A, - * 0x00000b.. for DMA controller B, etc. */ -#define SPIDER_NET_GDADCHA 0x00000a00 -#define SPIDER_NET_GDADMACCNTR 0x00000a04 -#define SPIDER_NET_GDACTDPA 0x00000a08 -#define SPIDER_NET_GDACTDCNT 0x00000a0c -#define SPIDER_NET_GDACDBADDR 0x00000a20 -#define SPIDER_NET_GDACDBSIZE 0x00000a24 -#define SPIDER_NET_GDACNEXTDA 0x00000a28 -#define SPIDER_NET_GDACCOMST 0x00000a2c -#define SPIDER_NET_GDAWBCOMST 0x00000a30 -#define SPIDER_NET_GDAWBRSIZE 0x00000a34 -#define SPIDER_NET_GDAWBVSIZE 0x00000a38 -#define SPIDER_NET_GDAWBTRST 0x00000a3c -#define SPIDER_NET_GDAWBTRERR 0x00000a40 - -/* TX DMA controller registers */ -#define SPIDER_NET_GDTDCHA 0x00000e00 -#define SPIDER_NET_GDTDMACCNTR 0x00000e04 -#define SPIDER_NET_GDTCDPA 0x00000e08 -#define SPIDER_NET_GDTDMASEL 0x00000e14 - -#define SPIDER_NET_ECMODE 0x00000f00 -/* clock and reset control register */ -#define SPIDER_NET_CKRCTRL 0x00000ff0 - -/** SCONFIG registers */ -#define SPIDER_NET_SCONFIG_IOACTE 0x00002810 - -/** interrupt mask registers */ -#define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe2c7 -#define SPIDER_NET_INT1_MASK_VALUE 0x0000fff2 -#define SPIDER_NET_INT2_MASK_VALUE 0x000003f1 - -/* we rely on flagged descriptor interrupts */ -#define SPIDER_NET_FRAMENUM_VALUE 0x00000000 -/* set this first, then the FRAMENUM_VALUE */ -#define SPIDER_NET_GFXFRAMES_VALUE 0x00000000 - -#define SPIDER_NET_STOP_SEQ_VALUE 0x00000000 -#define SPIDER_NET_RUN_SEQ_VALUE 0x0000007e - -#define SPIDER_NET_PHY_CTRL_VALUE 0x00040040 -/* #define SPIDER_NET_PHY_CTRL_VALUE 0x01070080*/ -#define SPIDER_NET_RXMODE_VALUE 0x00000011 -/* auto retransmission in case of MAC aborts */ -#define SPIDER_NET_TXMODE_VALUE 0x00010000 -#define SPIDER_NET_RESTART_VALUE 0x00000000 -#define SPIDER_NET_WOL_VALUE 0x00001111 -#if 0 -#define SPIDER_NET_WOL_VALUE 0x00000000 -#endif -#define SPIDER_NET_IPSECINIT_VALUE 0x6f716f71 - -/* pause frames: automatic, no upper retransmission count */ -/* outside loopback mode: ETOMOD signal dont matter, not connected */ -/* ETOMOD signal is brought to PHY reset. bit 2 must be 1 in Celleb */ -#define SPIDER_NET_OPMODE_VALUE 0x00000067 -/*#define SPIDER_NET_OPMODE_VALUE 0x001b0062*/ -#define SPIDER_NET_LENLMT_VALUE 0x00000908 - -#define SPIDER_NET_MACAPAUSE_VALUE 0x00000800 /* about 1 ms */ -#define SPIDER_NET_TXPAUSE_VALUE 0x00000000 - -#define SPIDER_NET_MACMODE_VALUE 0x00000001 -#define SPIDER_NET_BURSTLMT_VALUE 0x00000200 /* about 16 us */ - -/* DMAC control register GDMACCNTR - * - * 1(0) enable r/tx dma - * 0000000 fixed to 0 - * - * 000000 fixed to 0 - * 0(1) en/disable descr writeback on force end - * 0(1) force end - * - * 000000 fixed to 0 - * 00 burst alignment: 128 bytes - * 11 burst alignment: 1024 bytes - * - * 00000 fixed to 0 - * 0 descr writeback size 32 bytes - * 0(1) descr chain end interrupt enable - * 0(1) descr status writeback enable */ - -/* to set RX_DMA_EN */ -#define SPIDER_NET_DMA_RX_VALUE 0x80000000 -#define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003 -/* to set TX_DMA_EN */ -#define SPIDER_NET_TX_DMA_EN 0x80000000 -#define SPIDER_NET_GDTBSTA 0x00000300 -#define SPIDER_NET_GDTDCEIDIS 0x00000002 -#define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \ - SPIDER_NET_GDTDCEIDIS | \ - SPIDER_NET_GDTBSTA - -#define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003 - -/* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */ -#define SPIDER_NET_UA_DESCR_VALUE 0x00080000 -#define SPIDER_NET_PROMISC_VALUE 0x00080000 -#define SPIDER_NET_NONPROMISC_VALUE 0x00000000 - -#define SPIDER_NET_DMASEL_VALUE 0x00000001 - -#define SPIDER_NET_ECMODE_VALUE 0x00000000 - -#define SPIDER_NET_CKRCTRL_RUN_VALUE 0x1fff010f -#define SPIDER_NET_CKRCTRL_STOP_VALUE 0x0000010f - -#define SPIDER_NET_SBIMSTATE_VALUE 0x00000000 -#define SPIDER_NET_SBTMSTATE_VALUE 0x00000000 - -/* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used - * with 1 << SPIDER_NET_... */ -enum spider_net_int0_status { - SPIDER_NET_GPHYINT = 0, - SPIDER_NET_GMAC2INT, - SPIDER_NET_GMAC1INT, - SPIDER_NET_GIPSINT, - SPIDER_NET_GFIFOINT, - SPIDER_NET_GDMACINT, - SPIDER_NET_GSYSINT, - SPIDER_NET_GPWOPCMPINT, - SPIDER_NET_GPROPCMPINT, - SPIDER_NET_GPWFFINT, - SPIDER_NET_GRMDADRINT, - SPIDER_NET_GRMARPINT, - SPIDER_NET_GRMMPINT, - SPIDER_NET_GDTDEN0INT, - SPIDER_NET_GDDDEN0INT, - SPIDER_NET_GDCDEN0INT, - SPIDER_NET_GDBDEN0INT, - SPIDER_NET_GDADEN0INT, - SPIDER_NET_GDTFDCINT, - SPIDER_NET_GDDFDCINT, - SPIDER_NET_GDCFDCINT, - SPIDER_NET_GDBFDCINT, - SPIDER_NET_GDAFDCINT, - SPIDER_NET_GTTEDINT, - SPIDER_NET_GDTDCEINT, - SPIDER_NET_GRFDNMINT, - SPIDER_NET_GRFCNMINT, - SPIDER_NET_GRFBNMINT, - SPIDER_NET_GRFANMINT, - SPIDER_NET_GRFNMINT, - SPIDER_NET_G1TMCNTINT, - SPIDER_NET_GFREECNTINT -}; -/* GHIINT1STS bits */ -enum spider_net_int1_status { - SPIDER_NET_GTMFLLINT = 0, - SPIDER_NET_GRMFLLINT, - SPIDER_NET_GTMSHTINT, - SPIDER_NET_GDTINVDINT, - SPIDER_NET_GRFDFLLINT, - SPIDER_NET_GDDDCEINT, - SPIDER_NET_GDDINVDINT, - SPIDER_NET_GRFCFLLINT, - SPIDER_NET_GDCDCEINT, - SPIDER_NET_GDCINVDINT, - SPIDER_NET_GRFBFLLINT, - SPIDER_NET_GDBDCEINT, - SPIDER_NET_GDBINVDINT, - SPIDER_NET_GRFAFLLINT, - SPIDER_NET_GDADCEINT, - SPIDER_NET_GDAINVDINT, - SPIDER_NET_GDTRSERINT, - SPIDER_NET_GDDRSERINT, - SPIDER_NET_GDCRSERINT, - SPIDER_NET_GDBRSERINT, - SPIDER_NET_GDARSERINT, - SPIDER_NET_GDSERINT, - SPIDER_NET_GDTPTERINT, - SPIDER_NET_GDDPTERINT, - SPIDER_NET_GDCPTERINT, - SPIDER_NET_GDBPTERINT, - SPIDER_NET_GDAPTERINT -}; -/* GHIINT2STS bits */ -enum spider_net_int2_status { - SPIDER_NET_GPROPERINT = 0, - SPIDER_NET_GMCTCRSNGINT, - SPIDER_NET_GMCTLCOLINT, - SPIDER_NET_GMCTTMOTINT, - SPIDER_NET_GMCRCAERINT, - SPIDER_NET_GMCRCALERINT, - SPIDER_NET_GMCRALNERINT, - SPIDER_NET_GMCROVRINT, - SPIDER_NET_GMCRRNTINT, - SPIDER_NET_GMCRRXERINT, - SPIDER_NET_GTITCSERINT, - SPIDER_NET_GTIFMTERINT, - SPIDER_NET_GTIPKTRVKINT, - SPIDER_NET_GTISPINGINT, - SPIDER_NET_GTISADNGINT, - SPIDER_NET_GTISPDNGINT, - SPIDER_NET_GRIFMTERINT, - SPIDER_NET_GRIPKTRVKINT, - SPIDER_NET_GRISPINGINT, - SPIDER_NET_GRISADNGINT, - SPIDER_NET_GRISPDNGINT -}; - -#define SPIDER_NET_TXINT (1 << SPIDER_NET_GDTFDCINT) - -/* We rely on flagged descriptor interrupts */ -#define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) ) - -#define SPIDER_NET_LINKINT ( 1 << SPIDER_NET_GMAC2INT ) - -#define SPIDER_NET_ERRINT ( 0xffffffff & \ - (~SPIDER_NET_TXINT) & \ - (~SPIDER_NET_RXINT) & \ - (~SPIDER_NET_LINKINT) ) - -#define SPIDER_NET_GPREXEC 0x80000000 -#define SPIDER_NET_GPRDAT_MASK 0x0000ffff - -#define SPIDER_NET_DMAC_NOINTR_COMPLETE 0x00800000 -#define SPIDER_NET_DMAC_TXFRMTL 0x00040000 -#define SPIDER_NET_DMAC_TCP 0x00020000 -#define SPIDER_NET_DMAC_UDP 0x00030000 -#define SPIDER_NET_TXDCEST 0x08000000 - -#define SPIDER_NET_DESCR_RXFDIS 0x00000001 -#define SPIDER_NET_DESCR_RXDCEIS 0x00000002 -#define SPIDER_NET_DESCR_RXDEN0IS 0x00000004 -#define SPIDER_NET_DESCR_RXINVDIS 0x00000008 -#define SPIDER_NET_DESCR_RXRERRIS 0x00000010 -#define SPIDER_NET_DESCR_RXFDCIMS 0x00000100 -#define SPIDER_NET_DESCR_RXDCEIMS 0x00000200 -#define SPIDER_NET_DESCR_RXDEN0IMS 0x00000400 -#define SPIDER_NET_DESCR_RXINVDIMS 0x00000800 -#define SPIDER_NET_DESCR_RXRERRMIS 0x00001000 -#define SPIDER_NET_DESCR_UNUSED 0x077fe0e0 - -#define SPIDER_NET_DESCR_IND_PROC_MASK 0xF0000000 -#define SPIDER_NET_DESCR_COMPLETE 0x00000000 /* used in rx and tx */ -#define SPIDER_NET_DESCR_RESPONSE_ERROR 0x10000000 /* used in rx and tx */ -#define SPIDER_NET_DESCR_PROTECTION_ERROR 0x20000000 /* used in rx and tx */ -#define SPIDER_NET_DESCR_FRAME_END 0x40000000 /* used in rx */ -#define SPIDER_NET_DESCR_FORCE_END 0x50000000 /* used in rx and tx */ -#define SPIDER_NET_DESCR_CARDOWNED 0xA0000000 /* used in rx and tx */ -#define SPIDER_NET_DESCR_NOT_IN_USE 0xF0000000 -#define SPIDER_NET_DESCR_TXDESFLG 0x00800000 - -#define SPIDER_NET_DESCR_BAD_STATUS (SPIDER_NET_DESCR_RXDEN0IS | \ - SPIDER_NET_DESCR_RXRERRIS | \ - SPIDER_NET_DESCR_RXDEN0IMS | \ - SPIDER_NET_DESCR_RXINVDIMS | \ - SPIDER_NET_DESCR_RXRERRMIS | \ - SPIDER_NET_DESCR_UNUSED) - -/* Descriptor, as defined by the hardware */ -struct spider_net_hw_descr { - u32 buf_addr; - u32 buf_size; - u32 next_descr_addr; - u32 dmac_cmd_status; - u32 result_size; - u32 valid_size; /* all zeroes for tx */ - u32 data_status; - u32 data_error; /* all zeroes for tx */ -} __attribute__((aligned(32))); - -struct spider_net_descr { - struct spider_net_hw_descr *hwdescr; - struct sk_buff *skb; - u32 bus_addr; - struct spider_net_descr *next; - struct spider_net_descr *prev; -}; - -struct spider_net_descr_chain { - spinlock_t lock; - struct spider_net_descr *head; - struct spider_net_descr *tail; - struct spider_net_descr *ring; - int num_desc; - struct spider_net_hw_descr *hwring; - dma_addr_t dma_addr; -}; - -/* descriptor data_status bits */ -#define SPIDER_NET_RX_IPCHK 29 -#define SPIDER_NET_RX_TCPCHK 28 -#define SPIDER_NET_VLAN_PACKET 21 -#define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \ - (1 << SPIDER_NET_RX_TCPCHK) ) - -/* descriptor data_error bits */ -#define SPIDER_NET_RX_IPCHKERR 27 -#define SPIDER_NET_RX_RXTCPCHKERR 28 - -#define SPIDER_NET_DATA_ERR_CKSUM_MASK (1 << SPIDER_NET_RX_IPCHKERR) - -/* the cases we don't pass the packet to the stack. - * 701b8000 would be correct, but every packets gets that flag */ -#define SPIDER_NET_DESTROY_RX_FLAGS 0x700b8000 - -#define SPIDER_NET_DEFAULT_MSG ( NETIF_MSG_DRV | \ - NETIF_MSG_PROBE | \ - NETIF_MSG_LINK | \ - NETIF_MSG_TIMER | \ - NETIF_MSG_IFDOWN | \ - NETIF_MSG_IFUP | \ - NETIF_MSG_RX_ERR | \ - NETIF_MSG_TX_ERR | \ - NETIF_MSG_TX_QUEUED | \ - NETIF_MSG_INTR | \ - NETIF_MSG_TX_DONE | \ - NETIF_MSG_RX_STATUS | \ - NETIF_MSG_PKTDATA | \ - NETIF_MSG_HW | \ - NETIF_MSG_WOL ) - -struct spider_net_extra_stats { - unsigned long rx_desc_error; - unsigned long tx_timeouts; - unsigned long alloc_rx_skb_error; - unsigned long rx_iommu_map_error; - unsigned long tx_iommu_map_error; - unsigned long rx_desc_unk_state; -}; - -struct spider_net_card { - struct net_device *netdev; - struct pci_dev *pdev; - struct mii_phy phy; - - struct napi_struct napi; - - int medium; - - void __iomem *regs; - - struct spider_net_descr_chain tx_chain; - struct spider_net_descr_chain rx_chain; - struct spider_net_descr *low_watermark; - - int aneg_count; - struct timer_list aneg_timer; - struct timer_list tx_timer; - struct work_struct tx_timeout_task; - atomic_t tx_timeout_task_counter; - wait_queue_head_t waitq; - int num_rx_ints; - int ignore_rx_ramfull; - - /* for ethtool */ - int msg_enable; - struct spider_net_extra_stats spider_stats; - - /* Must be last item in struct */ - struct spider_net_descr darray[]; -}; - -#endif diff --git a/drivers/net/ethernet/toshiba/spider_net_ethtool.c b/drivers/net/ethernet/toshiba/spider_net_ethtool.c deleted file mode 100644 index fef9fd127b5e..000000000000 --- a/drivers/net/ethernet/toshiba/spider_net_ethtool.c +++ /dev/null @@ -1,174 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Network device driver for Cell Processor-Based Blade - * - * (C) Copyright IBM Corp. 2005 - * - * Authors : Utz Bacher - * Jens Osterkamp - */ - -#include -#include -#include - -#include "spider_net.h" - - -static struct { - const char str[ETH_GSTRING_LEN]; -} ethtool_stats_keys[] = { - { "tx_packets" }, - { "tx_bytes" }, - { "rx_packets" }, - { "rx_bytes" }, - { "tx_errors" }, - { "tx_dropped" }, - { "rx_dropped" }, - { "rx_descriptor_error" }, - { "tx_timeouts" }, - { "alloc_rx_skb_error" }, - { "rx_iommu_map_error" }, - { "tx_iommu_map_error" }, - { "rx_desc_unk_state" }, -}; - -static int -spider_net_ethtool_get_link_ksettings(struct net_device *netdev, - struct ethtool_link_ksettings *cmd) -{ - struct spider_net_card *card; - card = netdev_priv(netdev); - - ethtool_link_ksettings_zero_link_mode(cmd, supported); - ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); - ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); - - ethtool_link_ksettings_zero_link_mode(cmd, advertising); - ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); - ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); - - cmd->base.port = PORT_FIBRE; - cmd->base.speed = card->phy.speed; - cmd->base.duplex = DUPLEX_FULL; - - return 0; -} - -static void -spider_net_ethtool_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *drvinfo) -{ - struct spider_net_card *card; - card = netdev_priv(netdev); - - /* clear and fill out info */ - strscpy(drvinfo->driver, spider_net_driver_name, - sizeof(drvinfo->driver)); - strscpy(drvinfo->version, VERSION, sizeof(drvinfo->version)); - strscpy(drvinfo->fw_version, "no information", - sizeof(drvinfo->fw_version)); - strscpy(drvinfo->bus_info, pci_name(card->pdev), - sizeof(drvinfo->bus_info)); -} - -static void -spider_net_ethtool_get_wol(struct net_device *netdev, - struct ethtool_wolinfo *wolinfo) -{ - /* no support for wol */ - wolinfo->supported = 0; - wolinfo->wolopts = 0; -} - -static u32 -spider_net_ethtool_get_msglevel(struct net_device *netdev) -{ - struct spider_net_card *card; - card = netdev_priv(netdev); - return card->msg_enable; -} - -static void -spider_net_ethtool_set_msglevel(struct net_device *netdev, - u32 level) -{ - struct spider_net_card *card; - card = netdev_priv(netdev); - card->msg_enable = level; -} - -static int -spider_net_ethtool_nway_reset(struct net_device *netdev) -{ - if (netif_running(netdev)) { - spider_net_stop(netdev); - spider_net_open(netdev); - } - return 0; -} - -static void -spider_net_ethtool_get_ringparam(struct net_device *netdev, - struct ethtool_ringparam *ering, - struct kernel_ethtool_ringparam *kernel_ering, - struct netlink_ext_ack *extack) -{ - struct spider_net_card *card = netdev_priv(netdev); - - ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX; - ering->tx_pending = card->tx_chain.num_desc; - ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX; - ering->rx_pending = card->rx_chain.num_desc; -} - -static int spider_net_get_sset_count(struct net_device *netdev, int sset) -{ - switch (sset) { - case ETH_SS_STATS: - return ARRAY_SIZE(ethtool_stats_keys); - default: - return -EOPNOTSUPP; - } -} - -static void spider_net_get_ethtool_stats(struct net_device *netdev, - struct ethtool_stats *stats, u64 *data) -{ - struct spider_net_card *card = netdev_priv(netdev); - - data[0] = netdev->stats.tx_packets; - data[1] = netdev->stats.tx_bytes; - data[2] = netdev->stats.rx_packets; - data[3] = netdev->stats.rx_bytes; - data[4] = netdev->stats.tx_errors; - data[5] = netdev->stats.tx_dropped; - data[6] = netdev->stats.rx_dropped; - data[7] = card->spider_stats.rx_desc_error; - data[8] = card->spider_stats.tx_timeouts; - data[9] = card->spider_stats.alloc_rx_skb_error; - data[10] = card->spider_stats.rx_iommu_map_error; - data[11] = card->spider_stats.tx_iommu_map_error; - data[12] = card->spider_stats.rx_desc_unk_state; -} - -static void spider_net_get_strings(struct net_device *netdev, u32 stringset, - u8 *data) -{ - memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); -} - -const struct ethtool_ops spider_net_ethtool_ops = { - .get_drvinfo = spider_net_ethtool_get_drvinfo, - .get_wol = spider_net_ethtool_get_wol, - .get_msglevel = spider_net_ethtool_get_msglevel, - .set_msglevel = spider_net_ethtool_set_msglevel, - .get_link = ethtool_op_get_link, - .nway_reset = spider_net_ethtool_nway_reset, - .get_ringparam = spider_net_ethtool_get_ringparam, - .get_strings = spider_net_get_strings, - .get_sset_count = spider_net_get_sset_count, - .get_ethtool_stats = spider_net_get_ethtool_stats, - .get_link_ksettings = spider_net_ethtool_get_link_ksettings, -}; -