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298 lines
7.1 KiB
298 lines
7.1 KiB
/* |
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* Copyright (c) 2011, 2012, Qualcomm Atheros Communications Inc. |
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* Copyright (c) 2014, I2SE GmbH |
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* |
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* Permission to use, copy, modify, and/or distribute this software |
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* for any purpose with or without fee is hereby granted, provided |
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* that the above copyright notice and this permission notice appear |
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* in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL |
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* THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR |
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM |
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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/* This file contains debugging routines for use in the QCA7K driver. |
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*/ |
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#include <linux/debugfs.h> |
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#include <linux/ethtool.h> |
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#include <linux/seq_file.h> |
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#include <linux/types.h> |
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#include "qca_7k.h" |
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#include "qca_debug.h" |
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#define QCASPI_MAX_REGS 0x20 |
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static const u16 qcaspi_spi_regs[] = { |
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SPI_REG_BFR_SIZE, |
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SPI_REG_WRBUF_SPC_AVA, |
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SPI_REG_RDBUF_BYTE_AVA, |
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SPI_REG_SPI_CONFIG, |
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SPI_REG_SPI_STATUS, |
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SPI_REG_INTR_CAUSE, |
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SPI_REG_INTR_ENABLE, |
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SPI_REG_RDBUF_WATERMARK, |
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SPI_REG_WRBUF_WATERMARK, |
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SPI_REG_SIGNATURE, |
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SPI_REG_ACTION_CTRL |
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}; |
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/* The order of these strings must match the order of the fields in |
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* struct qcaspi_stats |
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* See qca_spi.h |
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*/ |
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static const char qcaspi_gstrings_stats[][ETH_GSTRING_LEN] = { |
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"Triggered resets", |
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"Device resets", |
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"Reset timeouts", |
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"Read errors", |
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"Write errors", |
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"Read buffer errors", |
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"Write buffer errors", |
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"Out of memory", |
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"Write buffer misses", |
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"Transmit ring full", |
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"SPI errors", |
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"Write verify errors", |
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"Buffer available errors", |
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"Bad signature", |
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}; |
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#ifdef CONFIG_DEBUG_FS |
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static int |
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qcaspi_info_show(struct seq_file *s, void *what) |
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{ |
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struct qcaspi *qca = s->private; |
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seq_printf(s, "RX buffer size : %lu\n", |
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(unsigned long)qca->buffer_size); |
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seq_puts(s, "TX ring state : "); |
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if (qca->txr.skb[qca->txr.head] == NULL) |
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seq_puts(s, "empty"); |
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else if (qca->txr.skb[qca->txr.tail]) |
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seq_puts(s, "full"); |
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else |
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seq_puts(s, "in use"); |
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seq_puts(s, "\n"); |
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seq_printf(s, "TX ring size : %u\n", |
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qca->txr.size); |
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seq_printf(s, "Sync state : %u (", |
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(unsigned int)qca->sync); |
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switch (qca->sync) { |
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case QCASPI_SYNC_UNKNOWN: |
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seq_puts(s, "QCASPI_SYNC_UNKNOWN"); |
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break; |
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case QCASPI_SYNC_RESET: |
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seq_puts(s, "QCASPI_SYNC_RESET"); |
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break; |
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case QCASPI_SYNC_READY: |
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seq_puts(s, "QCASPI_SYNC_READY"); |
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break; |
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default: |
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seq_puts(s, "INVALID"); |
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break; |
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} |
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seq_puts(s, ")\n"); |
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seq_printf(s, "IRQ : %d\n", |
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qca->spi_dev->irq); |
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seq_printf(s, "INTR REQ : %u\n", |
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qca->intr_req); |
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seq_printf(s, "INTR SVC : %u\n", |
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qca->intr_svc); |
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seq_printf(s, "SPI max speed : %lu\n", |
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(unsigned long)qca->spi_dev->max_speed_hz); |
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seq_printf(s, "SPI mode : %x\n", |
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qca->spi_dev->mode); |
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seq_printf(s, "SPI chip select : %u\n", |
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(unsigned int)qca->spi_dev->chip_select); |
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seq_printf(s, "SPI legacy mode : %u\n", |
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(unsigned int)qca->legacy_mode); |
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seq_printf(s, "SPI burst length : %u\n", |
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(unsigned int)qca->burst_len); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(qcaspi_info); |
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void |
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qcaspi_init_device_debugfs(struct qcaspi *qca) |
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{ |
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qca->device_root = debugfs_create_dir(dev_name(&qca->net_dev->dev), |
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NULL); |
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debugfs_create_file("info", S_IFREG | 0444, qca->device_root, qca, |
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&qcaspi_info_fops); |
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} |
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void |
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qcaspi_remove_device_debugfs(struct qcaspi *qca) |
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{ |
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debugfs_remove_recursive(qca->device_root); |
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} |
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#else /* CONFIG_DEBUG_FS */ |
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void |
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qcaspi_init_device_debugfs(struct qcaspi *qca) |
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{ |
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} |
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void |
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qcaspi_remove_device_debugfs(struct qcaspi *qca) |
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{ |
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} |
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#endif |
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static void |
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qcaspi_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *p) |
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{ |
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struct qcaspi *qca = netdev_priv(dev); |
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strlcpy(p->driver, QCASPI_DRV_NAME, sizeof(p->driver)); |
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strlcpy(p->version, QCASPI_DRV_VERSION, sizeof(p->version)); |
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strlcpy(p->fw_version, "QCA7000", sizeof(p->fw_version)); |
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strlcpy(p->bus_info, dev_name(&qca->spi_dev->dev), |
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sizeof(p->bus_info)); |
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} |
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static int |
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qcaspi_get_link_ksettings(struct net_device *dev, |
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struct ethtool_link_ksettings *cmd) |
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{ |
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ethtool_link_ksettings_zero_link_mode(cmd, supported); |
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ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); |
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cmd->base.speed = SPEED_10; |
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cmd->base.duplex = DUPLEX_HALF; |
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cmd->base.port = PORT_OTHER; |
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cmd->base.autoneg = AUTONEG_DISABLE; |
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return 0; |
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} |
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static void |
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qcaspi_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *data) |
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{ |
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struct qcaspi *qca = netdev_priv(dev); |
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struct qcaspi_stats *st = &qca->stats; |
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memcpy(data, st, ARRAY_SIZE(qcaspi_gstrings_stats) * sizeof(u64)); |
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} |
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static void |
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qcaspi_get_strings(struct net_device *dev, u32 stringset, u8 *buf) |
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{ |
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switch (stringset) { |
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case ETH_SS_STATS: |
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memcpy(buf, &qcaspi_gstrings_stats, |
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sizeof(qcaspi_gstrings_stats)); |
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break; |
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default: |
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WARN_ON(1); |
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break; |
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} |
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} |
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static int |
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qcaspi_get_sset_count(struct net_device *dev, int sset) |
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{ |
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switch (sset) { |
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case ETH_SS_STATS: |
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return ARRAY_SIZE(qcaspi_gstrings_stats); |
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default: |
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return -EINVAL; |
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} |
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} |
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static int |
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qcaspi_get_regs_len(struct net_device *dev) |
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{ |
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return sizeof(u32) * QCASPI_MAX_REGS; |
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} |
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static void |
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qcaspi_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p) |
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{ |
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struct qcaspi *qca = netdev_priv(dev); |
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u32 *regs_buff = p; |
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unsigned int i; |
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regs->version = 1; |
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memset(regs_buff, 0, sizeof(u32) * QCASPI_MAX_REGS); |
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for (i = 0; i < ARRAY_SIZE(qcaspi_spi_regs); i++) { |
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u16 offset, value; |
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qcaspi_read_register(qca, qcaspi_spi_regs[i], &value); |
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offset = qcaspi_spi_regs[i] >> 8; |
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regs_buff[offset] = value; |
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} |
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} |
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static void |
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qcaspi_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring) |
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{ |
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struct qcaspi *qca = netdev_priv(dev); |
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ring->rx_max_pending = 4; |
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ring->tx_max_pending = TX_RING_MAX_LEN; |
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ring->rx_pending = 4; |
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ring->tx_pending = qca->txr.count; |
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} |
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static int |
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qcaspi_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ring) |
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{ |
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const struct net_device_ops *ops = dev->netdev_ops; |
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struct qcaspi *qca = netdev_priv(dev); |
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if ((ring->rx_pending) || |
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(ring->rx_mini_pending) || |
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(ring->rx_jumbo_pending)) |
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return -EINVAL; |
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if (netif_running(dev)) |
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ops->ndo_stop(dev); |
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qca->txr.count = max_t(u32, ring->tx_pending, TX_RING_MIN_LEN); |
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qca->txr.count = min_t(u16, qca->txr.count, TX_RING_MAX_LEN); |
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if (netif_running(dev)) |
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ops->ndo_open(dev); |
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return 0; |
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} |
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static const struct ethtool_ops qcaspi_ethtool_ops = { |
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.get_drvinfo = qcaspi_get_drvinfo, |
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.get_link = ethtool_op_get_link, |
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.get_ethtool_stats = qcaspi_get_ethtool_stats, |
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.get_strings = qcaspi_get_strings, |
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.get_sset_count = qcaspi_get_sset_count, |
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.get_regs_len = qcaspi_get_regs_len, |
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.get_regs = qcaspi_get_regs, |
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.get_ringparam = qcaspi_get_ringparam, |
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.set_ringparam = qcaspi_set_ringparam, |
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.get_link_ksettings = qcaspi_get_link_ksettings, |
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}; |
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void qcaspi_set_ethtool_ops(struct net_device *dev) |
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{ |
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dev->ethtool_ops = &qcaspi_ethtool_ops; |
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}
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