/**********************************************************************
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* Author: Cavium, Inc.
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*
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* Contact: support@cavium.com
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* Please include "LiquidIO" in the subject.
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*
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* Copyright (c) 2003-2016 Cavium, Inc.
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more details.
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***********************************************************************/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/firmware.h>
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#include <net/vxlan.h>
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#include <linux/kthread.h>
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#include "liquidio_common.h"
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#include "octeon_droq.h"
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#include "octeon_iq.h"
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#include "response_manager.h"
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#include "octeon_device.h"
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#include "octeon_nic.h"
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#include "octeon_main.h"
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#include "octeon_network.h"
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#include "cn66xx_regs.h"
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#include "cn66xx_device.h"
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#include "cn68xx_device.h"
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#include "cn23xx_pf_device.h"
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#include "liquidio_image.h"
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#include "lio_vf_rep.h"
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MODULE_AUTHOR("Cavium Networks, <support@cavium.com>");
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MODULE_DESCRIPTION("Cavium LiquidIO Intelligent Server Adapter Driver");
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MODULE_LICENSE("GPL");
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MODULE_FIRMWARE(LIO_FW_DIR LIO_FW_BASE_NAME LIO_210SV_NAME
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"_" LIO_FW_NAME_TYPE_NIC LIO_FW_NAME_SUFFIX);
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MODULE_FIRMWARE(LIO_FW_DIR LIO_FW_BASE_NAME LIO_210NV_NAME
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"_" LIO_FW_NAME_TYPE_NIC LIO_FW_NAME_SUFFIX);
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MODULE_FIRMWARE(LIO_FW_DIR LIO_FW_BASE_NAME LIO_410NV_NAME
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"_" LIO_FW_NAME_TYPE_NIC LIO_FW_NAME_SUFFIX);
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MODULE_FIRMWARE(LIO_FW_DIR LIO_FW_BASE_NAME LIO_23XX_NAME
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"_" LIO_FW_NAME_TYPE_NIC LIO_FW_NAME_SUFFIX);
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static int ddr_timeout = 10000;
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module_param(ddr_timeout, int, 0644);
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MODULE_PARM_DESC(ddr_timeout,
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"Number of milliseconds to wait for DDR initialization. 0 waits for ddr_timeout to be set to non-zero value before starting to check");
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#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
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static int debug = -1;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "NETIF_MSG debug bits");
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static char fw_type[LIO_MAX_FW_TYPE_LEN] = LIO_FW_NAME_TYPE_AUTO;
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module_param_string(fw_type, fw_type, sizeof(fw_type), 0444);
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MODULE_PARM_DESC(fw_type, "Type of firmware to be loaded (default is \"auto\"), which uses firmware in flash, if present, else loads \"nic\".");
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static u32 console_bitmask;
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module_param(console_bitmask, int, 0644);
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MODULE_PARM_DESC(console_bitmask,
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"Bitmask indicating which consoles have debug output redirected to syslog.");
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/**
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* octeon_console_debug_enabled - determines if a given console has debug enabled.
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* @console: console to check
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* Return: 1 = enabled. 0 otherwise
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*/
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static int octeon_console_debug_enabled(u32 console)
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{
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return (console_bitmask >> (console)) & 0x1;
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}
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/* Polling interval for determining when NIC application is alive */
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#define LIQUIDIO_STARTER_POLL_INTERVAL_MS 100
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/* runtime link query interval */
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#define LIQUIDIO_LINK_QUERY_INTERVAL_MS 1000
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/* update localtime to octeon firmware every 60 seconds.
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* make firmware to use same time reference, so that it will be easy to
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* correlate firmware logged events/errors with host events, for debugging.
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*/
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#define LIO_SYNC_OCTEON_TIME_INTERVAL_MS 60000
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/* time to wait for possible in-flight requests in milliseconds */
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#define WAIT_INFLIGHT_REQUEST msecs_to_jiffies(1000)
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struct lio_trusted_vf_ctx {
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struct completion complete;
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int status;
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};
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struct oct_link_status_resp {
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u64 rh;
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struct oct_link_info link_info;
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u64 status;
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};
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struct oct_timestamp_resp {
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u64 rh;
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u64 timestamp;
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u64 status;
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};
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#define OCT_TIMESTAMP_RESP_SIZE (sizeof(struct oct_timestamp_resp))
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union tx_info {
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u64 u64;
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struct {
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#ifdef __BIG_ENDIAN_BITFIELD
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u16 gso_size;
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u16 gso_segs;
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u32 reserved;
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#else
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u32 reserved;
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u16 gso_segs;
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u16 gso_size;
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#endif
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} s;
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};
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/* Octeon device properties to be used by the NIC module.
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* Each octeon device in the system will be represented
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* by this structure in the NIC module.
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*/
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#define OCTNIC_GSO_MAX_HEADER_SIZE 128
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#define OCTNIC_GSO_MAX_SIZE \
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(CN23XX_DEFAULT_INPUT_JABBER - OCTNIC_GSO_MAX_HEADER_SIZE)
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struct handshake {
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struct completion init;
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struct completion started;
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struct pci_dev *pci_dev;
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int init_ok;
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int started_ok;
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};
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#ifdef CONFIG_PCI_IOV
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static int liquidio_enable_sriov(struct pci_dev *dev, int num_vfs);
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#endif
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static int octeon_dbg_console_print(struct octeon_device *oct, u32 console_num,
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char *prefix, char *suffix);
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static int octeon_device_init(struct octeon_device *);
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static int liquidio_stop(struct net_device *netdev);
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static void liquidio_remove(struct pci_dev *pdev);
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static int liquidio_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent);
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static int liquidio_set_vf_link_state(struct net_device *netdev, int vfidx,
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int linkstate);
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static struct handshake handshake[MAX_OCTEON_DEVICES];
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static struct completion first_stage;
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static void octeon_droq_bh(struct tasklet_struct *t)
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{
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int q_no;
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int reschedule = 0;
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struct octeon_device_priv *oct_priv = from_tasklet(oct_priv, t,
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droq_tasklet);
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struct octeon_device *oct = oct_priv->dev;
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for (q_no = 0; q_no < MAX_OCTEON_OUTPUT_QUEUES(oct); q_no++) {
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if (!(oct->io_qmask.oq & BIT_ULL(q_no)))
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continue;
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reschedule |= octeon_droq_process_packets(oct, oct->droq[q_no],
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MAX_PACKET_BUDGET);
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lio_enable_irq(oct->droq[q_no], NULL);
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if (OCTEON_CN23XX_PF(oct) && oct->msix_on) {
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/* set time and cnt interrupt thresholds for this DROQ
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* for NAPI
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*/
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int adjusted_q_no = q_no + oct->sriov_info.pf_srn;
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octeon_write_csr64(
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oct, CN23XX_SLI_OQ_PKT_INT_LEVELS(adjusted_q_no),
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0x5700000040ULL);
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octeon_write_csr64(
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oct, CN23XX_SLI_OQ_PKTS_SENT(adjusted_q_no), 0);
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}
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}
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if (reschedule)
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tasklet_schedule(&oct_priv->droq_tasklet);
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}
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static int lio_wait_for_oq_pkts(struct octeon_device *oct)
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{
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struct octeon_device_priv *oct_priv =
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(struct octeon_device_priv *)oct->priv;
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int retry = 100, pkt_cnt = 0, pending_pkts = 0;
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int i;
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do {
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pending_pkts = 0;
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for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
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if (!(oct->io_qmask.oq & BIT_ULL(i)))
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continue;
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pkt_cnt += octeon_droq_check_hw_for_pkts(oct->droq[i]);
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}
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if (pkt_cnt > 0) {
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pending_pkts += pkt_cnt;
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tasklet_schedule(&oct_priv->droq_tasklet);
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}
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pkt_cnt = 0;
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schedule_timeout_uninterruptible(1);
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} while (retry-- && pending_pkts);
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return pkt_cnt;
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}
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/**
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* force_io_queues_off - Forces all IO queues off on a given device
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* @oct: Pointer to Octeon device
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*/
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static void force_io_queues_off(struct octeon_device *oct)
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{
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if ((oct->chip_id == OCTEON_CN66XX) ||
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(oct->chip_id == OCTEON_CN68XX)) {
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/* Reset the Enable bits for Input Queues. */
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octeon_write_csr(oct, CN6XXX_SLI_PKT_INSTR_ENB, 0);
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/* Reset the Enable bits for Output Queues. */
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octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, 0);
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}
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}
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/**
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* pcierror_quiesce_device - Cause device to go quiet so it can be safely removed/reset/etc
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* @oct: Pointer to Octeon device
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*/
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static inline void pcierror_quiesce_device(struct octeon_device *oct)
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{
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int i;
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/* Disable the input and output queues now. No more packets will
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* arrive from Octeon, but we should wait for all packet processing
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* to finish.
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*/
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force_io_queues_off(oct);
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/* To allow for in-flight requests */
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schedule_timeout_uninterruptible(WAIT_INFLIGHT_REQUEST);
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if (wait_for_pending_requests(oct))
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dev_err(&oct->pci_dev->dev, "There were pending requests\n");
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/* Force all requests waiting to be fetched by OCTEON to complete. */
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for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
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struct octeon_instr_queue *iq;
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if (!(oct->io_qmask.iq & BIT_ULL(i)))
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continue;
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iq = oct->instr_queue[i];
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if (atomic_read(&iq->instr_pending)) {
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spin_lock_bh(&iq->lock);
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iq->fill_cnt = 0;
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iq->octeon_read_index = iq->host_write_index;
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iq->stats.instr_processed +=
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atomic_read(&iq->instr_pending);
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lio_process_iq_request_list(oct, iq, 0);
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spin_unlock_bh(&iq->lock);
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}
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}
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/* Force all pending ordered list requests to time out. */
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lio_process_ordered_list(oct, 1);
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/* We do not need to wait for output queue packets to be processed. */
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}
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/**
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* cleanup_aer_uncorrect_error_status - Cleanup PCI AER uncorrectable error status
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* @dev: Pointer to PCI device
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*/
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static void cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
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{
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int pos = 0x100;
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u32 status, mask;
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pr_info("%s :\n", __func__);
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pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
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pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask);
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if (dev->error_state == pci_channel_io_normal)
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status &= ~mask; /* Clear corresponding nonfatal bits */
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else
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status &= mask; /* Clear corresponding fatal bits */
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pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);
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}
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/**
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* stop_pci_io - Stop all PCI IO to a given device
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* @oct: Pointer to Octeon device
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*/
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static void stop_pci_io(struct octeon_device *oct)
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{
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/* No more instructions will be forwarded. */
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atomic_set(&oct->status, OCT_DEV_IN_RESET);
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pci_disable_device(oct->pci_dev);
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/* Disable interrupts */
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oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR);
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pcierror_quiesce_device(oct);
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/* Release the interrupt line */
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free_irq(oct->pci_dev->irq, oct);
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if (oct->flags & LIO_FLAG_MSI_ENABLED)
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pci_disable_msi(oct->pci_dev);
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dev_dbg(&oct->pci_dev->dev, "Device state is now %s\n",
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lio_get_state_string(&oct->status));
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/* making it a common function for all OCTEON models */
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cleanup_aer_uncorrect_error_status(oct->pci_dev);
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}
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/**
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* liquidio_pcie_error_detected - called when PCI error is detected
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* @pdev: Pointer to PCI device
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* @state: The current pci connection state
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*
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* This function is called after a PCI bus error affecting
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* this device has been detected.
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*/
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static pci_ers_result_t liquidio_pcie_error_detected(struct pci_dev *pdev,
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pci_channel_state_t state)
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{
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struct octeon_device *oct = pci_get_drvdata(pdev);
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/* Non-correctable Non-fatal errors */
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if (state == pci_channel_io_normal) {
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dev_err(&oct->pci_dev->dev, "Non-correctable non-fatal error reported:\n");
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cleanup_aer_uncorrect_error_status(oct->pci_dev);
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return PCI_ERS_RESULT_CAN_RECOVER;
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}
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/* Non-correctable Fatal errors */
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dev_err(&oct->pci_dev->dev, "Non-correctable FATAL reported by PCI AER driver\n");
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stop_pci_io(oct);
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/* Always return a DISCONNECT. There is no support for recovery but only
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* for a clean shutdown.
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*/
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return PCI_ERS_RESULT_DISCONNECT;
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}
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/**
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* liquidio_pcie_mmio_enabled - mmio handler
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* @pdev: Pointer to PCI device
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*/
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static pci_ers_result_t liquidio_pcie_mmio_enabled(struct pci_dev __maybe_unused *pdev)
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{
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/* We should never hit this since we never ask for a reset for a Fatal
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* Error. We always return DISCONNECT in io_error above.
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* But play safe and return RECOVERED for now.
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*/
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return PCI_ERS_RESULT_RECOVERED;
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}
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/**
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* liquidio_pcie_slot_reset - called after the pci bus has been reset.
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* @pdev: Pointer to PCI device
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*
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* Restart the card from scratch, as if from a cold-boot. Implementation
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* resembles the first-half of the octeon_resume routine.
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*/
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static pci_ers_result_t liquidio_pcie_slot_reset(struct pci_dev __maybe_unused *pdev)
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{
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/* We should never hit this since we never ask for a reset for a Fatal
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* Error. We always return DISCONNECT in io_error above.
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* But play safe and return RECOVERED for now.
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*/
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return PCI_ERS_RESULT_RECOVERED;
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}
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/**
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* liquidio_pcie_resume - called when traffic can start flowing again.
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* @pdev: Pointer to PCI device
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*
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* This callback is called when the error recovery driver tells us that
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* its OK to resume normal operation. Implementation resembles the
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* second-half of the octeon_resume routine.
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*/
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static void liquidio_pcie_resume(struct pci_dev __maybe_unused *pdev)
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{
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/* Nothing to be done here. */
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}
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#define liquidio_suspend NULL
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#define liquidio_resume NULL
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/* For PCI-E Advanced Error Recovery (AER) Interface */
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static const struct pci_error_handlers liquidio_err_handler = {
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.error_detected = liquidio_pcie_error_detected,
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.mmio_enabled = liquidio_pcie_mmio_enabled,
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.slot_reset = liquidio_pcie_slot_reset,
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.resume = liquidio_pcie_resume,
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};
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static const struct pci_device_id liquidio_pci_tbl[] = {
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{ /* 68xx */
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PCI_VENDOR_ID_CAVIUM, 0x91, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0
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},
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{ /* 66xx */
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PCI_VENDOR_ID_CAVIUM, 0x92, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0
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},
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{ /* 23xx pf */
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PCI_VENDOR_ID_CAVIUM, 0x9702, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0
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},
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{
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0, 0, 0, 0, 0, 0, 0
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}
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};
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MODULE_DEVICE_TABLE(pci, liquidio_pci_tbl);
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static SIMPLE_DEV_PM_OPS(liquidio_pm_ops, liquidio_suspend, liquidio_resume);
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static struct pci_driver liquidio_pci_driver = {
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.name = "LiquidIO",
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.id_table = liquidio_pci_tbl,
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.probe = liquidio_probe,
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.remove = liquidio_remove,
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.err_handler = &liquidio_err_handler, /* For AER */
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.driver.pm = &liquidio_pm_ops,
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#ifdef CONFIG_PCI_IOV
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.sriov_configure = liquidio_enable_sriov,
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#endif
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};
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/**
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* liquidio_init_pci - register PCI driver
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*/
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static int liquidio_init_pci(void)
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{
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return pci_register_driver(&liquidio_pci_driver);
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}
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/**
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* liquidio_deinit_pci - unregister PCI driver
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*/
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static void liquidio_deinit_pci(void)
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{
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pci_unregister_driver(&liquidio_pci_driver);
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}
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/**
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* check_txq_status - Check Tx queue status, and take appropriate action
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* @lio: per-network private data
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* Return: 0 if full, number of queues woken up otherwise
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*/
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static inline int check_txq_status(struct lio *lio)
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{
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int numqs = lio->netdev->real_num_tx_queues;
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int ret_val = 0;
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int q, iq;
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/* check each sub-queue state */
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for (q = 0; q < numqs; q++) {
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iq = lio->linfo.txpciq[q %
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lio->oct_dev->num_iqs].s.q_no;
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if (octnet_iq_is_full(lio->oct_dev, iq))
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continue;
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if (__netif_subqueue_stopped(lio->netdev, q)) {
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netif_wake_subqueue(lio->netdev, q);
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INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, iq,
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tx_restart, 1);
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ret_val++;
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}
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}
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return ret_val;
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}
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/**
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* print_link_info - Print link information
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* @netdev: network device
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*/
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static void print_link_info(struct net_device *netdev)
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{
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struct lio *lio = GET_LIO(netdev);
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if (!ifstate_check(lio, LIO_IFSTATE_RESETTING) &&
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ifstate_check(lio, LIO_IFSTATE_REGISTERED)) {
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struct oct_link_info *linfo = &lio->linfo;
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if (linfo->link.s.link_up) {
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netif_info(lio, link, lio->netdev, "%d Mbps %s Duplex UP\n",
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linfo->link.s.speed,
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(linfo->link.s.duplex) ? "Full" : "Half");
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} else {
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netif_info(lio, link, lio->netdev, "Link Down\n");
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}
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}
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}
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/**
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* octnet_link_status_change - Routine to notify MTU change
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* @work: work_struct data structure
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*/
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static void octnet_link_status_change(struct work_struct *work)
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{
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struct cavium_wk *wk = (struct cavium_wk *)work;
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struct lio *lio = (struct lio *)wk->ctxptr;
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/* lio->linfo.link.s.mtu always contains max MTU of the lio interface.
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* this API is invoked only when new max-MTU of the interface is
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* less than current MTU.
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*/
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rtnl_lock();
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dev_set_mtu(lio->netdev, lio->linfo.link.s.mtu);
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rtnl_unlock();
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}
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/**
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* setup_link_status_change_wq - Sets up the mtu status change work
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* @netdev: network device
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*/
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static inline int setup_link_status_change_wq(struct net_device *netdev)
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{
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struct lio *lio = GET_LIO(netdev);
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struct octeon_device *oct = lio->oct_dev;
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lio->link_status_wq.wq = alloc_workqueue("link-status",
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WQ_MEM_RECLAIM, 0);
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if (!lio->link_status_wq.wq) {
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dev_err(&oct->pci_dev->dev, "unable to create cavium link status wq\n");
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return -1;
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}
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INIT_DELAYED_WORK(&lio->link_status_wq.wk.work,
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octnet_link_status_change);
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lio->link_status_wq.wk.ctxptr = lio;
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return 0;
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}
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static inline void cleanup_link_status_change_wq(struct net_device *netdev)
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{
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struct lio *lio = GET_LIO(netdev);
|
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if (lio->link_status_wq.wq) {
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cancel_delayed_work_sync(&lio->link_status_wq.wk.work);
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destroy_workqueue(lio->link_status_wq.wq);
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}
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}
|
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/**
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* update_link_status - Update link status
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* @netdev: network device
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* @ls: link status structure
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*
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* Called on receipt of a link status response from the core application to
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* update each interface's link status.
|
*/
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static inline void update_link_status(struct net_device *netdev,
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union oct_link_status *ls)
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{
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struct lio *lio = GET_LIO(netdev);
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int changed = (lio->linfo.link.u64 != ls->u64);
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int current_max_mtu = lio->linfo.link.s.mtu;
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struct octeon_device *oct = lio->oct_dev;
|
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dev_dbg(&oct->pci_dev->dev, "%s: lio->linfo.link.u64=%llx, ls->u64=%llx\n",
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__func__, lio->linfo.link.u64, ls->u64);
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lio->linfo.link.u64 = ls->u64;
|
|
if ((lio->intf_open) && (changed)) {
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print_link_info(netdev);
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lio->link_changes++;
|
|
if (lio->linfo.link.s.link_up) {
|
dev_dbg(&oct->pci_dev->dev, "%s: link_up", __func__);
|
netif_carrier_on(netdev);
|
wake_txqs(netdev);
|
} else {
|
dev_dbg(&oct->pci_dev->dev, "%s: link_off", __func__);
|
netif_carrier_off(netdev);
|
stop_txqs(netdev);
|
}
|
if (lio->linfo.link.s.mtu != current_max_mtu) {
|
netif_info(lio, probe, lio->netdev, "Max MTU changed from %d to %d\n",
|
current_max_mtu, lio->linfo.link.s.mtu);
|
netdev->max_mtu = lio->linfo.link.s.mtu;
|
}
|
if (lio->linfo.link.s.mtu < netdev->mtu) {
|
dev_warn(&oct->pci_dev->dev,
|
"Current MTU is higher than new max MTU; Reducing the current mtu from %d to %d\n",
|
netdev->mtu, lio->linfo.link.s.mtu);
|
queue_delayed_work(lio->link_status_wq.wq,
|
&lio->link_status_wq.wk.work, 0);
|
}
|
}
|
}
|
|
/**
|
* lio_sync_octeon_time - send latest localtime to octeon firmware so that
|
* firmware will correct it's time, in case there is a time skew
|
*
|
* @work: work scheduled to send time update to octeon firmware
|
**/
|
static void lio_sync_octeon_time(struct work_struct *work)
|
{
|
struct cavium_wk *wk = (struct cavium_wk *)work;
|
struct lio *lio = (struct lio *)wk->ctxptr;
|
struct octeon_device *oct = lio->oct_dev;
|
struct octeon_soft_command *sc;
|
struct timespec64 ts;
|
struct lio_time *lt;
|
int ret;
|
|
sc = octeon_alloc_soft_command(oct, sizeof(struct lio_time), 16, 0);
|
if (!sc) {
|
dev_err(&oct->pci_dev->dev,
|
"Failed to sync time to octeon: soft command allocation failed\n");
|
return;
|
}
|
|
lt = (struct lio_time *)sc->virtdptr;
|
|
/* Get time of the day */
|
ktime_get_real_ts64(&ts);
|
lt->sec = ts.tv_sec;
|
lt->nsec = ts.tv_nsec;
|
octeon_swap_8B_data((u64 *)lt, (sizeof(struct lio_time)) / 8);
|
|
sc->iq_no = lio->linfo.txpciq[0].s.q_no;
|
octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
|
OPCODE_NIC_SYNC_OCTEON_TIME, 0, 0, 0);
|
|
init_completion(&sc->complete);
|
sc->sc_status = OCTEON_REQUEST_PENDING;
|
|
ret = octeon_send_soft_command(oct, sc);
|
if (ret == IQ_SEND_FAILED) {
|
dev_err(&oct->pci_dev->dev,
|
"Failed to sync time to octeon: failed to send soft command\n");
|
octeon_free_soft_command(oct, sc);
|
} else {
|
WRITE_ONCE(sc->caller_is_done, true);
|
}
|
|
queue_delayed_work(lio->sync_octeon_time_wq.wq,
|
&lio->sync_octeon_time_wq.wk.work,
|
msecs_to_jiffies(LIO_SYNC_OCTEON_TIME_INTERVAL_MS));
|
}
|
|
/**
|
* setup_sync_octeon_time_wq - prepare work to periodically update local time to octeon firmware
|
*
|
* @netdev: network device which should send time update to firmware
|
**/
|
static inline int setup_sync_octeon_time_wq(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
|
lio->sync_octeon_time_wq.wq =
|
alloc_workqueue("update-octeon-time", WQ_MEM_RECLAIM, 0);
|
if (!lio->sync_octeon_time_wq.wq) {
|
dev_err(&oct->pci_dev->dev, "Unable to create wq to update octeon time\n");
|
return -1;
|
}
|
INIT_DELAYED_WORK(&lio->sync_octeon_time_wq.wk.work,
|
lio_sync_octeon_time);
|
lio->sync_octeon_time_wq.wk.ctxptr = lio;
|
queue_delayed_work(lio->sync_octeon_time_wq.wq,
|
&lio->sync_octeon_time_wq.wk.work,
|
msecs_to_jiffies(LIO_SYNC_OCTEON_TIME_INTERVAL_MS));
|
|
return 0;
|
}
|
|
/**
|
* cleanup_sync_octeon_time_wq - destroy wq
|
*
|
* @netdev: network device which should send time update to firmware
|
*
|
* Stop scheduling and destroy the work created to periodically update local
|
* time to octeon firmware.
|
**/
|
static inline void cleanup_sync_octeon_time_wq(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct cavium_wq *time_wq = &lio->sync_octeon_time_wq;
|
|
if (time_wq->wq) {
|
cancel_delayed_work_sync(&time_wq->wk.work);
|
destroy_workqueue(time_wq->wq);
|
}
|
}
|
|
static struct octeon_device *get_other_octeon_device(struct octeon_device *oct)
|
{
|
struct octeon_device *other_oct;
|
|
other_oct = lio_get_device(oct->octeon_id + 1);
|
|
if (other_oct && other_oct->pci_dev) {
|
int oct_busnum, other_oct_busnum;
|
|
oct_busnum = oct->pci_dev->bus->number;
|
other_oct_busnum = other_oct->pci_dev->bus->number;
|
|
if (oct_busnum == other_oct_busnum) {
|
int oct_slot, other_oct_slot;
|
|
oct_slot = PCI_SLOT(oct->pci_dev->devfn);
|
other_oct_slot = PCI_SLOT(other_oct->pci_dev->devfn);
|
|
if (oct_slot == other_oct_slot)
|
return other_oct;
|
}
|
}
|
|
return NULL;
|
}
|
|
static void disable_all_vf_links(struct octeon_device *oct)
|
{
|
struct net_device *netdev;
|
int max_vfs, vf, i;
|
|
if (!oct)
|
return;
|
|
max_vfs = oct->sriov_info.max_vfs;
|
|
for (i = 0; i < oct->ifcount; i++) {
|
netdev = oct->props[i].netdev;
|
if (!netdev)
|
continue;
|
|
for (vf = 0; vf < max_vfs; vf++)
|
liquidio_set_vf_link_state(netdev, vf,
|
IFLA_VF_LINK_STATE_DISABLE);
|
}
|
}
|
|
static int liquidio_watchdog(void *param)
|
{
|
bool err_msg_was_printed[LIO_MAX_CORES];
|
u16 mask_of_crashed_or_stuck_cores = 0;
|
bool all_vf_links_are_disabled = false;
|
struct octeon_device *oct = param;
|
struct octeon_device *other_oct;
|
#ifdef CONFIG_MODULE_UNLOAD
|
long refcount, vfs_referencing_pf;
|
u64 vfs_mask1, vfs_mask2;
|
#endif
|
int core;
|
|
memset(err_msg_was_printed, 0, sizeof(err_msg_was_printed));
|
|
while (!kthread_should_stop()) {
|
/* sleep for a couple of seconds so that we don't hog the CPU */
|
set_current_state(TASK_INTERRUPTIBLE);
|
schedule_timeout(msecs_to_jiffies(2000));
|
|
mask_of_crashed_or_stuck_cores =
|
(u16)octeon_read_csr64(oct, CN23XX_SLI_SCRATCH2);
|
|
if (!mask_of_crashed_or_stuck_cores)
|
continue;
|
|
WRITE_ONCE(oct->cores_crashed, true);
|
other_oct = get_other_octeon_device(oct);
|
if (other_oct)
|
WRITE_ONCE(other_oct->cores_crashed, true);
|
|
for (core = 0; core < LIO_MAX_CORES; core++) {
|
bool core_crashed_or_got_stuck;
|
|
core_crashed_or_got_stuck =
|
(mask_of_crashed_or_stuck_cores
|
>> core) & 1;
|
|
if (core_crashed_or_got_stuck &&
|
!err_msg_was_printed[core]) {
|
dev_err(&oct->pci_dev->dev,
|
"ERROR: Octeon core %d crashed or got stuck! See oct-fwdump for details.\n",
|
core);
|
err_msg_was_printed[core] = true;
|
}
|
}
|
|
if (all_vf_links_are_disabled)
|
continue;
|
|
disable_all_vf_links(oct);
|
disable_all_vf_links(other_oct);
|
all_vf_links_are_disabled = true;
|
|
#ifdef CONFIG_MODULE_UNLOAD
|
vfs_mask1 = READ_ONCE(oct->sriov_info.vf_drv_loaded_mask);
|
vfs_mask2 = READ_ONCE(other_oct->sriov_info.vf_drv_loaded_mask);
|
|
vfs_referencing_pf = hweight64(vfs_mask1);
|
vfs_referencing_pf += hweight64(vfs_mask2);
|
|
refcount = module_refcount(THIS_MODULE);
|
if (refcount >= vfs_referencing_pf) {
|
while (vfs_referencing_pf) {
|
module_put(THIS_MODULE);
|
vfs_referencing_pf--;
|
}
|
}
|
#endif
|
}
|
|
return 0;
|
}
|
|
/**
|
* liquidio_probe - PCI probe handler
|
* @pdev: PCI device structure
|
* @ent: unused
|
*/
|
static int
|
liquidio_probe(struct pci_dev *pdev, const struct pci_device_id __maybe_unused *ent)
|
{
|
struct octeon_device *oct_dev = NULL;
|
struct handshake *hs;
|
|
oct_dev = octeon_allocate_device(pdev->device,
|
sizeof(struct octeon_device_priv));
|
if (!oct_dev) {
|
dev_err(&pdev->dev, "Unable to allocate device\n");
|
return -ENOMEM;
|
}
|
|
if (pdev->device == OCTEON_CN23XX_PF_VID)
|
oct_dev->msix_on = LIO_FLAG_MSIX_ENABLED;
|
|
/* Enable PTP for 6XXX Device */
|
if (((pdev->device == OCTEON_CN66XX) ||
|
(pdev->device == OCTEON_CN68XX)))
|
oct_dev->ptp_enable = true;
|
else
|
oct_dev->ptp_enable = false;
|
|
dev_info(&pdev->dev, "Initializing device %x:%x.\n",
|
(u32)pdev->vendor, (u32)pdev->device);
|
|
/* Assign octeon_device for this device to the private data area. */
|
pci_set_drvdata(pdev, oct_dev);
|
|
/* set linux specific device pointer */
|
oct_dev->pci_dev = (void *)pdev;
|
|
oct_dev->subsystem_id = pdev->subsystem_vendor |
|
(pdev->subsystem_device << 16);
|
|
hs = &handshake[oct_dev->octeon_id];
|
init_completion(&hs->init);
|
init_completion(&hs->started);
|
hs->pci_dev = pdev;
|
|
if (oct_dev->octeon_id == 0)
|
/* first LiquidIO NIC is detected */
|
complete(&first_stage);
|
|
if (octeon_device_init(oct_dev)) {
|
complete(&hs->init);
|
liquidio_remove(pdev);
|
return -ENOMEM;
|
}
|
|
if (OCTEON_CN23XX_PF(oct_dev)) {
|
u8 bus, device, function;
|
|
if (atomic_read(oct_dev->adapter_refcount) == 1) {
|
/* Each NIC gets one watchdog kernel thread. The first
|
* PF (of each NIC) that gets pci_driver->probe()'d
|
* creates that thread.
|
*/
|
bus = pdev->bus->number;
|
device = PCI_SLOT(pdev->devfn);
|
function = PCI_FUNC(pdev->devfn);
|
oct_dev->watchdog_task = kthread_create(
|
liquidio_watchdog, oct_dev,
|
"liowd/%02hhx:%02hhx.%hhx", bus, device, function);
|
if (!IS_ERR(oct_dev->watchdog_task)) {
|
wake_up_process(oct_dev->watchdog_task);
|
} else {
|
oct_dev->watchdog_task = NULL;
|
dev_err(&oct_dev->pci_dev->dev,
|
"failed to create kernel_thread\n");
|
liquidio_remove(pdev);
|
return -1;
|
}
|
}
|
}
|
|
oct_dev->rx_pause = 1;
|
oct_dev->tx_pause = 1;
|
|
dev_dbg(&oct_dev->pci_dev->dev, "Device is ready\n");
|
|
return 0;
|
}
|
|
static bool fw_type_is_auto(void)
|
{
|
return strncmp(fw_type, LIO_FW_NAME_TYPE_AUTO,
|
sizeof(LIO_FW_NAME_TYPE_AUTO)) == 0;
|
}
|
|
/**
|
* octeon_pci_flr - PCI FLR for each Octeon device.
|
* @oct: octeon device
|
*/
|
static void octeon_pci_flr(struct octeon_device *oct)
|
{
|
int rc;
|
|
pci_save_state(oct->pci_dev);
|
|
pci_cfg_access_lock(oct->pci_dev);
|
|
/* Quiesce the device completely */
|
pci_write_config_word(oct->pci_dev, PCI_COMMAND,
|
PCI_COMMAND_INTX_DISABLE);
|
|
rc = __pci_reset_function_locked(oct->pci_dev);
|
|
if (rc != 0)
|
dev_err(&oct->pci_dev->dev, "Error %d resetting PCI function %d\n",
|
rc, oct->pf_num);
|
|
pci_cfg_access_unlock(oct->pci_dev);
|
|
pci_restore_state(oct->pci_dev);
|
}
|
|
/**
|
* octeon_destroy_resources - Destroy resources associated with octeon device
|
* @oct: octeon device
|
*/
|
static void octeon_destroy_resources(struct octeon_device *oct)
|
{
|
int i, refcount;
|
struct msix_entry *msix_entries;
|
struct octeon_device_priv *oct_priv =
|
(struct octeon_device_priv *)oct->priv;
|
|
struct handshake *hs;
|
|
switch (atomic_read(&oct->status)) {
|
case OCT_DEV_RUNNING:
|
case OCT_DEV_CORE_OK:
|
|
/* No more instructions will be forwarded. */
|
atomic_set(&oct->status, OCT_DEV_IN_RESET);
|
|
oct->app_mode = CVM_DRV_INVALID_APP;
|
dev_dbg(&oct->pci_dev->dev, "Device state is now %s\n",
|
lio_get_state_string(&oct->status));
|
|
schedule_timeout_uninterruptible(HZ / 10);
|
|
fallthrough;
|
case OCT_DEV_HOST_OK:
|
|
case OCT_DEV_CONSOLE_INIT_DONE:
|
/* Remove any consoles */
|
octeon_remove_consoles(oct);
|
|
fallthrough;
|
case OCT_DEV_IO_QUEUES_DONE:
|
if (lio_wait_for_instr_fetch(oct))
|
dev_err(&oct->pci_dev->dev, "IQ had pending instructions\n");
|
|
if (wait_for_pending_requests(oct))
|
dev_err(&oct->pci_dev->dev, "There were pending requests\n");
|
|
/* Disable the input and output queues now. No more packets will
|
* arrive from Octeon, but we should wait for all packet
|
* processing to finish.
|
*/
|
oct->fn_list.disable_io_queues(oct);
|
|
if (lio_wait_for_oq_pkts(oct))
|
dev_err(&oct->pci_dev->dev, "OQ had pending packets\n");
|
|
/* Force all requests waiting to be fetched by OCTEON to
|
* complete.
|
*/
|
for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
|
struct octeon_instr_queue *iq;
|
|
if (!(oct->io_qmask.iq & BIT_ULL(i)))
|
continue;
|
iq = oct->instr_queue[i];
|
|
if (atomic_read(&iq->instr_pending)) {
|
spin_lock_bh(&iq->lock);
|
iq->fill_cnt = 0;
|
iq->octeon_read_index = iq->host_write_index;
|
iq->stats.instr_processed +=
|
atomic_read(&iq->instr_pending);
|
lio_process_iq_request_list(oct, iq, 0);
|
spin_unlock_bh(&iq->lock);
|
}
|
}
|
|
lio_process_ordered_list(oct, 1);
|
octeon_free_sc_done_list(oct);
|
octeon_free_sc_zombie_list(oct);
|
|
fallthrough;
|
case OCT_DEV_INTR_SET_DONE:
|
/* Disable interrupts */
|
oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR);
|
|
if (oct->msix_on) {
|
msix_entries = (struct msix_entry *)oct->msix_entries;
|
for (i = 0; i < oct->num_msix_irqs - 1; i++) {
|
if (oct->ioq_vector[i].vector) {
|
/* clear the affinity_cpumask */
|
irq_set_affinity_hint(
|
msix_entries[i].vector,
|
NULL);
|
free_irq(msix_entries[i].vector,
|
&oct->ioq_vector[i]);
|
oct->ioq_vector[i].vector = 0;
|
}
|
}
|
/* non-iov vector's argument is oct struct */
|
free_irq(msix_entries[i].vector, oct);
|
|
pci_disable_msix(oct->pci_dev);
|
kfree(oct->msix_entries);
|
oct->msix_entries = NULL;
|
} else {
|
/* Release the interrupt line */
|
free_irq(oct->pci_dev->irq, oct);
|
|
if (oct->flags & LIO_FLAG_MSI_ENABLED)
|
pci_disable_msi(oct->pci_dev);
|
}
|
|
kfree(oct->irq_name_storage);
|
oct->irq_name_storage = NULL;
|
|
fallthrough;
|
case OCT_DEV_MSIX_ALLOC_VECTOR_DONE:
|
if (OCTEON_CN23XX_PF(oct))
|
octeon_free_ioq_vector(oct);
|
|
fallthrough;
|
case OCT_DEV_MBOX_SETUP_DONE:
|
if (OCTEON_CN23XX_PF(oct))
|
oct->fn_list.free_mbox(oct);
|
|
fallthrough;
|
case OCT_DEV_IN_RESET:
|
case OCT_DEV_DROQ_INIT_DONE:
|
/* Wait for any pending operations */
|
mdelay(100);
|
for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
|
if (!(oct->io_qmask.oq & BIT_ULL(i)))
|
continue;
|
octeon_delete_droq(oct, i);
|
}
|
|
/* Force any pending handshakes to complete */
|
for (i = 0; i < MAX_OCTEON_DEVICES; i++) {
|
hs = &handshake[i];
|
|
if (hs->pci_dev) {
|
handshake[oct->octeon_id].init_ok = 0;
|
complete(&handshake[oct->octeon_id].init);
|
handshake[oct->octeon_id].started_ok = 0;
|
complete(&handshake[oct->octeon_id].started);
|
}
|
}
|
|
fallthrough;
|
case OCT_DEV_RESP_LIST_INIT_DONE:
|
octeon_delete_response_list(oct);
|
|
fallthrough;
|
case OCT_DEV_INSTR_QUEUE_INIT_DONE:
|
for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
|
if (!(oct->io_qmask.iq & BIT_ULL(i)))
|
continue;
|
octeon_delete_instr_queue(oct, i);
|
}
|
#ifdef CONFIG_PCI_IOV
|
if (oct->sriov_info.sriov_enabled)
|
pci_disable_sriov(oct->pci_dev);
|
#endif
|
fallthrough;
|
case OCT_DEV_SC_BUFF_POOL_INIT_DONE:
|
octeon_free_sc_buffer_pool(oct);
|
|
fallthrough;
|
case OCT_DEV_DISPATCH_INIT_DONE:
|
octeon_delete_dispatch_list(oct);
|
cancel_delayed_work_sync(&oct->nic_poll_work.work);
|
|
fallthrough;
|
case OCT_DEV_PCI_MAP_DONE:
|
refcount = octeon_deregister_device(oct);
|
|
/* Soft reset the octeon device before exiting.
|
* However, if fw was loaded from card (i.e. autoboot),
|
* perform an FLR instead.
|
* Implementation note: only soft-reset the device
|
* if it is a CN6XXX OR the LAST CN23XX device.
|
*/
|
if (atomic_read(oct->adapter_fw_state) == FW_IS_PRELOADED)
|
octeon_pci_flr(oct);
|
else if (OCTEON_CN6XXX(oct) || !refcount)
|
oct->fn_list.soft_reset(oct);
|
|
octeon_unmap_pci_barx(oct, 0);
|
octeon_unmap_pci_barx(oct, 1);
|
|
fallthrough;
|
case OCT_DEV_PCI_ENABLE_DONE:
|
pci_clear_master(oct->pci_dev);
|
/* Disable the device, releasing the PCI INT */
|
pci_disable_device(oct->pci_dev);
|
|
fallthrough;
|
case OCT_DEV_BEGIN_STATE:
|
/* Nothing to be done here either */
|
break;
|
} /* end switch (oct->status) */
|
|
tasklet_kill(&oct_priv->droq_tasklet);
|
}
|
|
/**
|
* send_rx_ctrl_cmd - Send Rx control command
|
* @lio: per-network private data
|
* @start_stop: whether to start or stop
|
*/
|
static int send_rx_ctrl_cmd(struct lio *lio, int start_stop)
|
{
|
struct octeon_soft_command *sc;
|
union octnet_cmd *ncmd;
|
struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
|
int retval;
|
|
if (oct->props[lio->ifidx].rx_on == start_stop)
|
return 0;
|
|
sc = (struct octeon_soft_command *)
|
octeon_alloc_soft_command(oct, OCTNET_CMD_SIZE,
|
16, 0);
|
if (!sc) {
|
netif_info(lio, rx_err, lio->netdev,
|
"Failed to allocate octeon_soft_command struct\n");
|
return -ENOMEM;
|
}
|
|
ncmd = (union octnet_cmd *)sc->virtdptr;
|
|
ncmd->u64 = 0;
|
ncmd->s.cmd = OCTNET_CMD_RX_CTL;
|
ncmd->s.param1 = start_stop;
|
|
octeon_swap_8B_data((u64 *)ncmd, (OCTNET_CMD_SIZE >> 3));
|
|
sc->iq_no = lio->linfo.txpciq[0].s.q_no;
|
|
octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
|
OPCODE_NIC_CMD, 0, 0, 0);
|
|
init_completion(&sc->complete);
|
sc->sc_status = OCTEON_REQUEST_PENDING;
|
|
retval = octeon_send_soft_command(oct, sc);
|
if (retval == IQ_SEND_FAILED) {
|
netif_info(lio, rx_err, lio->netdev, "Failed to send RX Control message\n");
|
octeon_free_soft_command(oct, sc);
|
} else {
|
/* Sleep on a wait queue till the cond flag indicates that the
|
* response arrived or timed-out.
|
*/
|
retval = wait_for_sc_completion_timeout(oct, sc, 0);
|
if (retval)
|
return retval;
|
|
oct->props[lio->ifidx].rx_on = start_stop;
|
WRITE_ONCE(sc->caller_is_done, true);
|
}
|
|
return retval;
|
}
|
|
/**
|
* liquidio_destroy_nic_device - Destroy NIC device interface
|
* @oct: octeon device
|
* @ifidx: which interface to destroy
|
*
|
* Cleanup associated with each interface for an Octeon device when NIC
|
* module is being unloaded or if initialization fails during load.
|
*/
|
static void liquidio_destroy_nic_device(struct octeon_device *oct, int ifidx)
|
{
|
struct net_device *netdev = oct->props[ifidx].netdev;
|
struct octeon_device_priv *oct_priv =
|
(struct octeon_device_priv *)oct->priv;
|
struct napi_struct *napi, *n;
|
struct lio *lio;
|
|
if (!netdev) {
|
dev_err(&oct->pci_dev->dev, "%s No netdevice ptr for index %d\n",
|
__func__, ifidx);
|
return;
|
}
|
|
lio = GET_LIO(netdev);
|
|
dev_dbg(&oct->pci_dev->dev, "NIC device cleanup\n");
|
|
if (atomic_read(&lio->ifstate) & LIO_IFSTATE_RUNNING)
|
liquidio_stop(netdev);
|
|
if (oct->props[lio->ifidx].napi_enabled == 1) {
|
list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
|
napi_disable(napi);
|
|
oct->props[lio->ifidx].napi_enabled = 0;
|
|
if (OCTEON_CN23XX_PF(oct))
|
oct->droq[0]->ops.poll_mode = 0;
|
}
|
|
/* Delete NAPI */
|
list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
|
netif_napi_del(napi);
|
|
tasklet_enable(&oct_priv->droq_tasklet);
|
|
if (atomic_read(&lio->ifstate) & LIO_IFSTATE_REGISTERED)
|
unregister_netdev(netdev);
|
|
cleanup_sync_octeon_time_wq(netdev);
|
cleanup_link_status_change_wq(netdev);
|
|
cleanup_rx_oom_poll_fn(netdev);
|
|
lio_delete_glists(lio);
|
|
free_netdev(netdev);
|
|
oct->props[ifidx].gmxport = -1;
|
|
oct->props[ifidx].netdev = NULL;
|
}
|
|
/**
|
* liquidio_stop_nic_module - Stop complete NIC functionality
|
* @oct: octeon device
|
*/
|
static int liquidio_stop_nic_module(struct octeon_device *oct)
|
{
|
int i, j;
|
struct lio *lio;
|
|
dev_dbg(&oct->pci_dev->dev, "Stopping network interfaces\n");
|
if (!oct->ifcount) {
|
dev_err(&oct->pci_dev->dev, "Init for Octeon was not completed\n");
|
return 1;
|
}
|
|
spin_lock_bh(&oct->cmd_resp_wqlock);
|
oct->cmd_resp_state = OCT_DRV_OFFLINE;
|
spin_unlock_bh(&oct->cmd_resp_wqlock);
|
|
lio_vf_rep_destroy(oct);
|
|
for (i = 0; i < oct->ifcount; i++) {
|
lio = GET_LIO(oct->props[i].netdev);
|
for (j = 0; j < oct->num_oqs; j++)
|
octeon_unregister_droq_ops(oct,
|
lio->linfo.rxpciq[j].s.q_no);
|
}
|
|
for (i = 0; i < oct->ifcount; i++)
|
liquidio_destroy_nic_device(oct, i);
|
|
if (oct->devlink) {
|
devlink_unregister(oct->devlink);
|
devlink_free(oct->devlink);
|
oct->devlink = NULL;
|
}
|
|
dev_dbg(&oct->pci_dev->dev, "Network interfaces stopped\n");
|
return 0;
|
}
|
|
/**
|
* liquidio_remove - Cleans up resources at unload time
|
* @pdev: PCI device structure
|
*/
|
static void liquidio_remove(struct pci_dev *pdev)
|
{
|
struct octeon_device *oct_dev = pci_get_drvdata(pdev);
|
|
dev_dbg(&oct_dev->pci_dev->dev, "Stopping device\n");
|
|
if (oct_dev->watchdog_task)
|
kthread_stop(oct_dev->watchdog_task);
|
|
if (!oct_dev->octeon_id &&
|
oct_dev->fw_info.app_cap_flags & LIQUIDIO_SWITCHDEV_CAP)
|
lio_vf_rep_modexit();
|
|
if (oct_dev->app_mode && (oct_dev->app_mode == CVM_DRV_NIC_APP))
|
liquidio_stop_nic_module(oct_dev);
|
|
/* Reset the octeon device and cleanup all memory allocated for
|
* the octeon device by driver.
|
*/
|
octeon_destroy_resources(oct_dev);
|
|
dev_info(&oct_dev->pci_dev->dev, "Device removed\n");
|
|
/* This octeon device has been removed. Update the global
|
* data structure to reflect this. Free the device structure.
|
*/
|
octeon_free_device_mem(oct_dev);
|
}
|
|
/**
|
* octeon_chip_specific_setup - Identify the Octeon device and to map the BAR address space
|
* @oct: octeon device
|
*/
|
static int octeon_chip_specific_setup(struct octeon_device *oct)
|
{
|
u32 dev_id, rev_id;
|
int ret = 1;
|
|
pci_read_config_dword(oct->pci_dev, 0, &dev_id);
|
pci_read_config_dword(oct->pci_dev, 8, &rev_id);
|
oct->rev_id = rev_id & 0xff;
|
|
switch (dev_id) {
|
case OCTEON_CN68XX_PCIID:
|
oct->chip_id = OCTEON_CN68XX;
|
ret = lio_setup_cn68xx_octeon_device(oct);
|
break;
|
|
case OCTEON_CN66XX_PCIID:
|
oct->chip_id = OCTEON_CN66XX;
|
ret = lio_setup_cn66xx_octeon_device(oct);
|
break;
|
|
case OCTEON_CN23XX_PCIID_PF:
|
oct->chip_id = OCTEON_CN23XX_PF_VID;
|
ret = setup_cn23xx_octeon_pf_device(oct);
|
if (ret)
|
break;
|
#ifdef CONFIG_PCI_IOV
|
if (!ret)
|
pci_sriov_set_totalvfs(oct->pci_dev,
|
oct->sriov_info.max_vfs);
|
#endif
|
break;
|
|
default:
|
dev_err(&oct->pci_dev->dev, "Unknown device found (dev_id: %x)\n",
|
dev_id);
|
}
|
|
return ret;
|
}
|
|
/**
|
* octeon_pci_os_setup - PCI initialization for each Octeon device.
|
* @oct: octeon device
|
*/
|
static int octeon_pci_os_setup(struct octeon_device *oct)
|
{
|
/* setup PCI stuff first */
|
if (pci_enable_device(oct->pci_dev)) {
|
dev_err(&oct->pci_dev->dev, "pci_enable_device failed\n");
|
return 1;
|
}
|
|
if (dma_set_mask_and_coherent(&oct->pci_dev->dev, DMA_BIT_MASK(64))) {
|
dev_err(&oct->pci_dev->dev, "Unexpected DMA device capability\n");
|
pci_disable_device(oct->pci_dev);
|
return 1;
|
}
|
|
/* Enable PCI DMA Master. */
|
pci_set_master(oct->pci_dev);
|
|
return 0;
|
}
|
|
/**
|
* free_netbuf - Unmap and free network buffer
|
* @buf: buffer
|
*/
|
static void free_netbuf(void *buf)
|
{
|
struct sk_buff *skb;
|
struct octnet_buf_free_info *finfo;
|
struct lio *lio;
|
|
finfo = (struct octnet_buf_free_info *)buf;
|
skb = finfo->skb;
|
lio = finfo->lio;
|
|
dma_unmap_single(&lio->oct_dev->pci_dev->dev, finfo->dptr, skb->len,
|
DMA_TO_DEVICE);
|
|
tx_buffer_free(skb);
|
}
|
|
/**
|
* free_netsgbuf - Unmap and free gather buffer
|
* @buf: buffer
|
*/
|
static void free_netsgbuf(void *buf)
|
{
|
struct octnet_buf_free_info *finfo;
|
struct sk_buff *skb;
|
struct lio *lio;
|
struct octnic_gather *g;
|
int i, frags, iq;
|
|
finfo = (struct octnet_buf_free_info *)buf;
|
skb = finfo->skb;
|
lio = finfo->lio;
|
g = finfo->g;
|
frags = skb_shinfo(skb)->nr_frags;
|
|
dma_unmap_single(&lio->oct_dev->pci_dev->dev,
|
g->sg[0].ptr[0], (skb->len - skb->data_len),
|
DMA_TO_DEVICE);
|
|
i = 1;
|
while (frags--) {
|
skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
|
|
pci_unmap_page((lio->oct_dev)->pci_dev,
|
g->sg[(i >> 2)].ptr[(i & 3)],
|
skb_frag_size(frag), DMA_TO_DEVICE);
|
i++;
|
}
|
|
iq = skb_iq(lio->oct_dev, skb);
|
spin_lock(&lio->glist_lock[iq]);
|
list_add_tail(&g->list, &lio->glist[iq]);
|
spin_unlock(&lio->glist_lock[iq]);
|
|
tx_buffer_free(skb);
|
}
|
|
/**
|
* free_netsgbuf_with_resp - Unmap and free gather buffer with response
|
* @buf: buffer
|
*/
|
static void free_netsgbuf_with_resp(void *buf)
|
{
|
struct octeon_soft_command *sc;
|
struct octnet_buf_free_info *finfo;
|
struct sk_buff *skb;
|
struct lio *lio;
|
struct octnic_gather *g;
|
int i, frags, iq;
|
|
sc = (struct octeon_soft_command *)buf;
|
skb = (struct sk_buff *)sc->callback_arg;
|
finfo = (struct octnet_buf_free_info *)&skb->cb;
|
|
lio = finfo->lio;
|
g = finfo->g;
|
frags = skb_shinfo(skb)->nr_frags;
|
|
dma_unmap_single(&lio->oct_dev->pci_dev->dev,
|
g->sg[0].ptr[0], (skb->len - skb->data_len),
|
DMA_TO_DEVICE);
|
|
i = 1;
|
while (frags--) {
|
skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
|
|
pci_unmap_page((lio->oct_dev)->pci_dev,
|
g->sg[(i >> 2)].ptr[(i & 3)],
|
skb_frag_size(frag), DMA_TO_DEVICE);
|
i++;
|
}
|
|
iq = skb_iq(lio->oct_dev, skb);
|
|
spin_lock(&lio->glist_lock[iq]);
|
list_add_tail(&g->list, &lio->glist[iq]);
|
spin_unlock(&lio->glist_lock[iq]);
|
|
/* Don't free the skb yet */
|
}
|
|
/**
|
* liquidio_ptp_adjfreq - Adjust ptp frequency
|
* @ptp: PTP clock info
|
* @ppb: how much to adjust by, in parts-per-billion
|
*/
|
static int liquidio_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
|
{
|
struct lio *lio = container_of(ptp, struct lio, ptp_info);
|
struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
|
u64 comp, delta;
|
unsigned long flags;
|
bool neg_adj = false;
|
|
if (ppb < 0) {
|
neg_adj = true;
|
ppb = -ppb;
|
}
|
|
/* The hardware adds the clock compensation value to the
|
* PTP clock on every coprocessor clock cycle, so we
|
* compute the delta in terms of coprocessor clocks.
|
*/
|
delta = (u64)ppb << 32;
|
do_div(delta, oct->coproc_clock_rate);
|
|
spin_lock_irqsave(&lio->ptp_lock, flags);
|
comp = lio_pci_readq(oct, CN6XXX_MIO_PTP_CLOCK_COMP);
|
if (neg_adj)
|
comp -= delta;
|
else
|
comp += delta;
|
lio_pci_writeq(oct, comp, CN6XXX_MIO_PTP_CLOCK_COMP);
|
spin_unlock_irqrestore(&lio->ptp_lock, flags);
|
|
return 0;
|
}
|
|
/**
|
* liquidio_ptp_adjtime - Adjust ptp time
|
* @ptp: PTP clock info
|
* @delta: how much to adjust by, in nanosecs
|
*/
|
static int liquidio_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
|
{
|
unsigned long flags;
|
struct lio *lio = container_of(ptp, struct lio, ptp_info);
|
|
spin_lock_irqsave(&lio->ptp_lock, flags);
|
lio->ptp_adjust += delta;
|
spin_unlock_irqrestore(&lio->ptp_lock, flags);
|
|
return 0;
|
}
|
|
/**
|
* liquidio_ptp_gettime - Get hardware clock time, including any adjustment
|
* @ptp: PTP clock info
|
* @ts: timespec
|
*/
|
static int liquidio_ptp_gettime(struct ptp_clock_info *ptp,
|
struct timespec64 *ts)
|
{
|
u64 ns;
|
unsigned long flags;
|
struct lio *lio = container_of(ptp, struct lio, ptp_info);
|
struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
|
|
spin_lock_irqsave(&lio->ptp_lock, flags);
|
ns = lio_pci_readq(oct, CN6XXX_MIO_PTP_CLOCK_HI);
|
ns += lio->ptp_adjust;
|
spin_unlock_irqrestore(&lio->ptp_lock, flags);
|
|
*ts = ns_to_timespec64(ns);
|
|
return 0;
|
}
|
|
/**
|
* liquidio_ptp_settime - Set hardware clock time. Reset adjustment
|
* @ptp: PTP clock info
|
* @ts: timespec
|
*/
|
static int liquidio_ptp_settime(struct ptp_clock_info *ptp,
|
const struct timespec64 *ts)
|
{
|
u64 ns;
|
unsigned long flags;
|
struct lio *lio = container_of(ptp, struct lio, ptp_info);
|
struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
|
|
ns = timespec64_to_ns(ts);
|
|
spin_lock_irqsave(&lio->ptp_lock, flags);
|
lio_pci_writeq(oct, ns, CN6XXX_MIO_PTP_CLOCK_HI);
|
lio->ptp_adjust = 0;
|
spin_unlock_irqrestore(&lio->ptp_lock, flags);
|
|
return 0;
|
}
|
|
/**
|
* liquidio_ptp_enable - Check if PTP is enabled
|
* @ptp: PTP clock info
|
* @rq: request
|
* @on: is it on
|
*/
|
static int
|
liquidio_ptp_enable(struct ptp_clock_info __maybe_unused *ptp,
|
struct ptp_clock_request __maybe_unused *rq,
|
int __maybe_unused on)
|
{
|
return -EOPNOTSUPP;
|
}
|
|
/**
|
* oct_ptp_open - Open PTP clock source
|
* @netdev: network device
|
*/
|
static void oct_ptp_open(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
|
|
spin_lock_init(&lio->ptp_lock);
|
|
snprintf(lio->ptp_info.name, 16, "%s", netdev->name);
|
lio->ptp_info.owner = THIS_MODULE;
|
lio->ptp_info.max_adj = 250000000;
|
lio->ptp_info.n_alarm = 0;
|
lio->ptp_info.n_ext_ts = 0;
|
lio->ptp_info.n_per_out = 0;
|
lio->ptp_info.pps = 0;
|
lio->ptp_info.adjfreq = liquidio_ptp_adjfreq;
|
lio->ptp_info.adjtime = liquidio_ptp_adjtime;
|
lio->ptp_info.gettime64 = liquidio_ptp_gettime;
|
lio->ptp_info.settime64 = liquidio_ptp_settime;
|
lio->ptp_info.enable = liquidio_ptp_enable;
|
|
lio->ptp_adjust = 0;
|
|
lio->ptp_clock = ptp_clock_register(&lio->ptp_info,
|
&oct->pci_dev->dev);
|
|
if (IS_ERR(lio->ptp_clock))
|
lio->ptp_clock = NULL;
|
}
|
|
/**
|
* liquidio_ptp_init - Init PTP clock
|
* @oct: octeon device
|
*/
|
static void liquidio_ptp_init(struct octeon_device *oct)
|
{
|
u64 clock_comp, cfg;
|
|
clock_comp = (u64)NSEC_PER_SEC << 32;
|
do_div(clock_comp, oct->coproc_clock_rate);
|
lio_pci_writeq(oct, clock_comp, CN6XXX_MIO_PTP_CLOCK_COMP);
|
|
/* Enable */
|
cfg = lio_pci_readq(oct, CN6XXX_MIO_PTP_CLOCK_CFG);
|
lio_pci_writeq(oct, cfg | 0x01, CN6XXX_MIO_PTP_CLOCK_CFG);
|
}
|
|
/**
|
* load_firmware - Load firmware to device
|
* @oct: octeon device
|
*
|
* Maps device to firmware filename, requests firmware, and downloads it
|
*/
|
static int load_firmware(struct octeon_device *oct)
|
{
|
int ret = 0;
|
const struct firmware *fw;
|
char fw_name[LIO_MAX_FW_FILENAME_LEN];
|
char *tmp_fw_type;
|
|
if (fw_type_is_auto()) {
|
tmp_fw_type = LIO_FW_NAME_TYPE_NIC;
|
strncpy(fw_type, tmp_fw_type, sizeof(fw_type));
|
} else {
|
tmp_fw_type = fw_type;
|
}
|
|
sprintf(fw_name, "%s%s%s_%s%s", LIO_FW_DIR, LIO_FW_BASE_NAME,
|
octeon_get_conf(oct)->card_name, tmp_fw_type,
|
LIO_FW_NAME_SUFFIX);
|
|
ret = request_firmware(&fw, fw_name, &oct->pci_dev->dev);
|
if (ret) {
|
dev_err(&oct->pci_dev->dev, "Request firmware failed. Could not find file %s.\n",
|
fw_name);
|
release_firmware(fw);
|
return ret;
|
}
|
|
ret = octeon_download_firmware(oct, fw->data, fw->size);
|
|
release_firmware(fw);
|
|
return ret;
|
}
|
|
/**
|
* octnet_poll_check_txq_status - Poll routine for checking transmit queue status
|
* @work: work_struct data structure
|
*/
|
static void octnet_poll_check_txq_status(struct work_struct *work)
|
{
|
struct cavium_wk *wk = (struct cavium_wk *)work;
|
struct lio *lio = (struct lio *)wk->ctxptr;
|
|
if (!ifstate_check(lio, LIO_IFSTATE_RUNNING))
|
return;
|
|
check_txq_status(lio);
|
queue_delayed_work(lio->txq_status_wq.wq,
|
&lio->txq_status_wq.wk.work, msecs_to_jiffies(1));
|
}
|
|
/**
|
* setup_tx_poll_fn - Sets up the txq poll check
|
* @netdev: network device
|
*/
|
static inline int setup_tx_poll_fn(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
|
lio->txq_status_wq.wq = alloc_workqueue("txq-status",
|
WQ_MEM_RECLAIM, 0);
|
if (!lio->txq_status_wq.wq) {
|
dev_err(&oct->pci_dev->dev, "unable to create cavium txq status wq\n");
|
return -1;
|
}
|
INIT_DELAYED_WORK(&lio->txq_status_wq.wk.work,
|
octnet_poll_check_txq_status);
|
lio->txq_status_wq.wk.ctxptr = lio;
|
queue_delayed_work(lio->txq_status_wq.wq,
|
&lio->txq_status_wq.wk.work, msecs_to_jiffies(1));
|
return 0;
|
}
|
|
static inline void cleanup_tx_poll_fn(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
|
if (lio->txq_status_wq.wq) {
|
cancel_delayed_work_sync(&lio->txq_status_wq.wk.work);
|
destroy_workqueue(lio->txq_status_wq.wq);
|
}
|
}
|
|
/**
|
* liquidio_open - Net device open for LiquidIO
|
* @netdev: network device
|
*/
|
static int liquidio_open(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octeon_device_priv *oct_priv =
|
(struct octeon_device_priv *)oct->priv;
|
struct napi_struct *napi, *n;
|
int ret = 0;
|
|
if (oct->props[lio->ifidx].napi_enabled == 0) {
|
tasklet_disable(&oct_priv->droq_tasklet);
|
|
list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
|
napi_enable(napi);
|
|
oct->props[lio->ifidx].napi_enabled = 1;
|
|
if (OCTEON_CN23XX_PF(oct))
|
oct->droq[0]->ops.poll_mode = 1;
|
}
|
|
if (oct->ptp_enable)
|
oct_ptp_open(netdev);
|
|
ifstate_set(lio, LIO_IFSTATE_RUNNING);
|
|
if (!OCTEON_CN23XX_PF(oct) || !oct->msix_on) {
|
ret = setup_tx_poll_fn(netdev);
|
if (ret)
|
goto err_poll;
|
}
|
|
netif_tx_start_all_queues(netdev);
|
|
/* Ready for link status updates */
|
lio->intf_open = 1;
|
|
netif_info(lio, ifup, lio->netdev, "Interface Open, ready for traffic\n");
|
|
/* tell Octeon to start forwarding packets to host */
|
ret = send_rx_ctrl_cmd(lio, 1);
|
if (ret)
|
goto err_rx_ctrl;
|
|
/* start periodical statistics fetch */
|
INIT_DELAYED_WORK(&lio->stats_wk.work, lio_fetch_stats);
|
lio->stats_wk.ctxptr = lio;
|
schedule_delayed_work(&lio->stats_wk.work, msecs_to_jiffies
|
(LIQUIDIO_NDEV_STATS_POLL_TIME_MS));
|
|
dev_info(&oct->pci_dev->dev, "%s interface is opened\n",
|
netdev->name);
|
|
return 0;
|
|
err_rx_ctrl:
|
if (!OCTEON_CN23XX_PF(oct) || !oct->msix_on)
|
cleanup_tx_poll_fn(netdev);
|
err_poll:
|
if (lio->ptp_clock) {
|
ptp_clock_unregister(lio->ptp_clock);
|
lio->ptp_clock = NULL;
|
}
|
|
if (oct->props[lio->ifidx].napi_enabled == 1) {
|
list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
|
napi_disable(napi);
|
|
oct->props[lio->ifidx].napi_enabled = 0;
|
|
if (OCTEON_CN23XX_PF(oct))
|
oct->droq[0]->ops.poll_mode = 0;
|
}
|
|
return ret;
|
}
|
|
/**
|
* liquidio_stop - Net device stop for LiquidIO
|
* @netdev: network device
|
*/
|
static int liquidio_stop(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octeon_device_priv *oct_priv =
|
(struct octeon_device_priv *)oct->priv;
|
struct napi_struct *napi, *n;
|
int ret = 0;
|
|
ifstate_reset(lio, LIO_IFSTATE_RUNNING);
|
|
/* Stop any link updates */
|
lio->intf_open = 0;
|
|
stop_txqs(netdev);
|
|
/* Inform that netif carrier is down */
|
netif_carrier_off(netdev);
|
netif_tx_disable(netdev);
|
|
lio->linfo.link.s.link_up = 0;
|
lio->link_changes++;
|
|
/* Tell Octeon that nic interface is down. */
|
ret = send_rx_ctrl_cmd(lio, 0);
|
if (ret)
|
return ret;
|
|
if (OCTEON_CN23XX_PF(oct)) {
|
if (!oct->msix_on)
|
cleanup_tx_poll_fn(netdev);
|
} else {
|
cleanup_tx_poll_fn(netdev);
|
}
|
|
cancel_delayed_work_sync(&lio->stats_wk.work);
|
|
if (lio->ptp_clock) {
|
ptp_clock_unregister(lio->ptp_clock);
|
lio->ptp_clock = NULL;
|
}
|
|
/* Wait for any pending Rx descriptors */
|
if (lio_wait_for_clean_oq(oct))
|
netif_info(lio, rx_err, lio->netdev,
|
"Proceeding with stop interface after partial RX desc processing\n");
|
|
if (oct->props[lio->ifidx].napi_enabled == 1) {
|
list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
|
napi_disable(napi);
|
|
oct->props[lio->ifidx].napi_enabled = 0;
|
|
if (OCTEON_CN23XX_PF(oct))
|
oct->droq[0]->ops.poll_mode = 0;
|
|
tasklet_enable(&oct_priv->droq_tasklet);
|
}
|
|
dev_info(&oct->pci_dev->dev, "%s interface is stopped\n", netdev->name);
|
|
return ret;
|
}
|
|
/**
|
* get_new_flags - Converts a mask based on net device flags
|
* @netdev: network device
|
*
|
* This routine generates a octnet_ifflags mask from the net device flags
|
* received from the OS.
|
*/
|
static inline enum octnet_ifflags get_new_flags(struct net_device *netdev)
|
{
|
enum octnet_ifflags f = OCTNET_IFFLAG_UNICAST;
|
|
if (netdev->flags & IFF_PROMISC)
|
f |= OCTNET_IFFLAG_PROMISC;
|
|
if (netdev->flags & IFF_ALLMULTI)
|
f |= OCTNET_IFFLAG_ALLMULTI;
|
|
if (netdev->flags & IFF_MULTICAST) {
|
f |= OCTNET_IFFLAG_MULTICAST;
|
|
/* Accept all multicast addresses if there are more than we
|
* can handle
|
*/
|
if (netdev_mc_count(netdev) > MAX_OCTEON_MULTICAST_ADDR)
|
f |= OCTNET_IFFLAG_ALLMULTI;
|
}
|
|
if (netdev->flags & IFF_BROADCAST)
|
f |= OCTNET_IFFLAG_BROADCAST;
|
|
return f;
|
}
|
|
/**
|
* liquidio_set_mcast_list - Net device set_multicast_list
|
* @netdev: network device
|
*/
|
static void liquidio_set_mcast_list(struct net_device *netdev)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
struct netdev_hw_addr *ha;
|
u64 *mc;
|
int ret;
|
int mc_count = min(netdev_mc_count(netdev), MAX_OCTEON_MULTICAST_ADDR);
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
/* Create a ctrl pkt command to be sent to core app. */
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = OCTNET_CMD_SET_MULTI_LIST;
|
nctrl.ncmd.s.param1 = get_new_flags(netdev);
|
nctrl.ncmd.s.param2 = mc_count;
|
nctrl.ncmd.s.more = mc_count;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
|
|
/* copy all the addresses into the udd */
|
mc = &nctrl.udd[0];
|
netdev_for_each_mc_addr(ha, netdev) {
|
*mc = 0;
|
memcpy(((u8 *)mc) + 2, ha->addr, ETH_ALEN);
|
/* no need to swap bytes */
|
|
if (++mc > &nctrl.udd[mc_count])
|
break;
|
}
|
|
/* Apparently, any activity in this call from the kernel has to
|
* be atomic. So we won't wait for response.
|
*/
|
|
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
|
if (ret) {
|
dev_err(&oct->pci_dev->dev, "DEVFLAGS change failed in core (ret: 0x%x)\n",
|
ret);
|
}
|
}
|
|
/**
|
* liquidio_set_mac - Net device set_mac_address
|
* @netdev: network device
|
* @p: pointer to sockaddr
|
*/
|
static int liquidio_set_mac(struct net_device *netdev, void *p)
|
{
|
int ret = 0;
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct sockaddr *addr = (struct sockaddr *)p;
|
struct octnic_ctrl_pkt nctrl;
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
return -EADDRNOTAVAIL;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = OCTNET_CMD_CHANGE_MACADDR;
|
nctrl.ncmd.s.param1 = 0;
|
nctrl.ncmd.s.more = 1;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
|
nctrl.udd[0] = 0;
|
/* The MAC Address is presented in network byte order. */
|
memcpy((u8 *)&nctrl.udd[0] + 2, addr->sa_data, ETH_ALEN);
|
|
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
|
if (ret < 0) {
|
dev_err(&oct->pci_dev->dev, "MAC Address change failed\n");
|
return -ENOMEM;
|
}
|
|
if (nctrl.sc_status) {
|
dev_err(&oct->pci_dev->dev,
|
"%s: MAC Address change failed. sc return=%x\n",
|
__func__, nctrl.sc_status);
|
return -EIO;
|
}
|
|
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
|
memcpy(((u8 *)&lio->linfo.hw_addr) + 2, addr->sa_data, ETH_ALEN);
|
|
return 0;
|
}
|
|
static void
|
liquidio_get_stats64(struct net_device *netdev,
|
struct rtnl_link_stats64 *lstats)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct;
|
u64 pkts = 0, drop = 0, bytes = 0;
|
struct oct_droq_stats *oq_stats;
|
struct oct_iq_stats *iq_stats;
|
int i, iq_no, oq_no;
|
|
oct = lio->oct_dev;
|
|
if (ifstate_check(lio, LIO_IFSTATE_RESETTING))
|
return;
|
|
for (i = 0; i < oct->num_iqs; i++) {
|
iq_no = lio->linfo.txpciq[i].s.q_no;
|
iq_stats = &oct->instr_queue[iq_no]->stats;
|
pkts += iq_stats->tx_done;
|
drop += iq_stats->tx_dropped;
|
bytes += iq_stats->tx_tot_bytes;
|
}
|
|
lstats->tx_packets = pkts;
|
lstats->tx_bytes = bytes;
|
lstats->tx_dropped = drop;
|
|
pkts = 0;
|
drop = 0;
|
bytes = 0;
|
|
for (i = 0; i < oct->num_oqs; i++) {
|
oq_no = lio->linfo.rxpciq[i].s.q_no;
|
oq_stats = &oct->droq[oq_no]->stats;
|
pkts += oq_stats->rx_pkts_received;
|
drop += (oq_stats->rx_dropped +
|
oq_stats->dropped_nodispatch +
|
oq_stats->dropped_toomany +
|
oq_stats->dropped_nomem);
|
bytes += oq_stats->rx_bytes_received;
|
}
|
|
lstats->rx_bytes = bytes;
|
lstats->rx_packets = pkts;
|
lstats->rx_dropped = drop;
|
|
lstats->multicast = oct->link_stats.fromwire.fw_total_mcast;
|
lstats->collisions = oct->link_stats.fromhost.total_collisions;
|
|
/* detailed rx_errors: */
|
lstats->rx_length_errors = oct->link_stats.fromwire.l2_err;
|
/* recved pkt with crc error */
|
lstats->rx_crc_errors = oct->link_stats.fromwire.fcs_err;
|
/* recv'd frame alignment error */
|
lstats->rx_frame_errors = oct->link_stats.fromwire.frame_err;
|
/* recv'r fifo overrun */
|
lstats->rx_fifo_errors = oct->link_stats.fromwire.fifo_err;
|
|
lstats->rx_errors = lstats->rx_length_errors + lstats->rx_crc_errors +
|
lstats->rx_frame_errors + lstats->rx_fifo_errors;
|
|
/* detailed tx_errors */
|
lstats->tx_aborted_errors = oct->link_stats.fromhost.fw_err_pko;
|
lstats->tx_carrier_errors = oct->link_stats.fromhost.fw_err_link;
|
lstats->tx_fifo_errors = oct->link_stats.fromhost.fifo_err;
|
|
lstats->tx_errors = lstats->tx_aborted_errors +
|
lstats->tx_carrier_errors +
|
lstats->tx_fifo_errors;
|
}
|
|
/**
|
* hwtstamp_ioctl - Handler for SIOCSHWTSTAMP ioctl
|
* @netdev: network device
|
* @ifr: interface request
|
*/
|
static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr)
|
{
|
struct hwtstamp_config conf;
|
struct lio *lio = GET_LIO(netdev);
|
|
if (copy_from_user(&conf, ifr->ifr_data, sizeof(conf)))
|
return -EFAULT;
|
|
if (conf.flags)
|
return -EINVAL;
|
|
switch (conf.tx_type) {
|
case HWTSTAMP_TX_ON:
|
case HWTSTAMP_TX_OFF:
|
break;
|
default:
|
return -ERANGE;
|
}
|
|
switch (conf.rx_filter) {
|
case HWTSTAMP_FILTER_NONE:
|
break;
|
case HWTSTAMP_FILTER_ALL:
|
case HWTSTAMP_FILTER_SOME:
|
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
|
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
|
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
|
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
|
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
|
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
|
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
|
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
|
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
|
case HWTSTAMP_FILTER_PTP_V2_EVENT:
|
case HWTSTAMP_FILTER_PTP_V2_SYNC:
|
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
|
case HWTSTAMP_FILTER_NTP_ALL:
|
conf.rx_filter = HWTSTAMP_FILTER_ALL;
|
break;
|
default:
|
return -ERANGE;
|
}
|
|
if (conf.rx_filter == HWTSTAMP_FILTER_ALL)
|
ifstate_set(lio, LIO_IFSTATE_RX_TIMESTAMP_ENABLED);
|
|
else
|
ifstate_reset(lio, LIO_IFSTATE_RX_TIMESTAMP_ENABLED);
|
|
return copy_to_user(ifr->ifr_data, &conf, sizeof(conf)) ? -EFAULT : 0;
|
}
|
|
/**
|
* liquidio_ioctl - ioctl handler
|
* @netdev: network device
|
* @ifr: interface request
|
* @cmd: command
|
*/
|
static int liquidio_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
|
switch (cmd) {
|
case SIOCSHWTSTAMP:
|
if (lio->oct_dev->ptp_enable)
|
return hwtstamp_ioctl(netdev, ifr);
|
fallthrough;
|
default:
|
return -EOPNOTSUPP;
|
}
|
}
|
|
/**
|
* handle_timestamp - handle a Tx timestamp response
|
* @oct: octeon device
|
* @status: response status
|
* @buf: pointer to skb
|
*/
|
static void handle_timestamp(struct octeon_device *oct,
|
u32 status,
|
void *buf)
|
{
|
struct octnet_buf_free_info *finfo;
|
struct octeon_soft_command *sc;
|
struct oct_timestamp_resp *resp;
|
struct lio *lio;
|
struct sk_buff *skb = (struct sk_buff *)buf;
|
|
finfo = (struct octnet_buf_free_info *)skb->cb;
|
lio = finfo->lio;
|
sc = finfo->sc;
|
oct = lio->oct_dev;
|
resp = (struct oct_timestamp_resp *)sc->virtrptr;
|
|
if (status != OCTEON_REQUEST_DONE) {
|
dev_err(&oct->pci_dev->dev, "Tx timestamp instruction failed. Status: %llx\n",
|
CVM_CAST64(status));
|
resp->timestamp = 0;
|
}
|
|
octeon_swap_8B_data(&resp->timestamp, 1);
|
|
if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) != 0)) {
|
struct skb_shared_hwtstamps ts;
|
u64 ns = resp->timestamp;
|
|
netif_info(lio, tx_done, lio->netdev,
|
"Got resulting SKBTX_HW_TSTAMP skb=%p ns=%016llu\n",
|
skb, (unsigned long long)ns);
|
ts.hwtstamp = ns_to_ktime(ns + lio->ptp_adjust);
|
skb_tstamp_tx(skb, &ts);
|
}
|
|
octeon_free_soft_command(oct, sc);
|
tx_buffer_free(skb);
|
}
|
|
/**
|
* send_nic_timestamp_pkt - Send a data packet that will be timestamped
|
* @oct: octeon device
|
* @ndata: pointer to network data
|
* @finfo: pointer to private network data
|
* @xmit_more: more is coming
|
*/
|
static inline int send_nic_timestamp_pkt(struct octeon_device *oct,
|
struct octnic_data_pkt *ndata,
|
struct octnet_buf_free_info *finfo,
|
int xmit_more)
|
{
|
int retval;
|
struct octeon_soft_command *sc;
|
struct lio *lio;
|
int ring_doorbell;
|
u32 len;
|
|
lio = finfo->lio;
|
|
sc = octeon_alloc_soft_command_resp(oct, &ndata->cmd,
|
sizeof(struct oct_timestamp_resp));
|
finfo->sc = sc;
|
|
if (!sc) {
|
dev_err(&oct->pci_dev->dev, "No memory for timestamped data packet\n");
|
return IQ_SEND_FAILED;
|
}
|
|
if (ndata->reqtype == REQTYPE_NORESP_NET)
|
ndata->reqtype = REQTYPE_RESP_NET;
|
else if (ndata->reqtype == REQTYPE_NORESP_NET_SG)
|
ndata->reqtype = REQTYPE_RESP_NET_SG;
|
|
sc->callback = handle_timestamp;
|
sc->callback_arg = finfo->skb;
|
sc->iq_no = ndata->q_no;
|
|
if (OCTEON_CN23XX_PF(oct))
|
len = (u32)((struct octeon_instr_ih3 *)
|
(&sc->cmd.cmd3.ih3))->dlengsz;
|
else
|
len = (u32)((struct octeon_instr_ih2 *)
|
(&sc->cmd.cmd2.ih2))->dlengsz;
|
|
ring_doorbell = !xmit_more;
|
|
retval = octeon_send_command(oct, sc->iq_no, ring_doorbell, &sc->cmd,
|
sc, len, ndata->reqtype);
|
|
if (retval == IQ_SEND_FAILED) {
|
dev_err(&oct->pci_dev->dev, "timestamp data packet failed status: %x\n",
|
retval);
|
octeon_free_soft_command(oct, sc);
|
} else {
|
netif_info(lio, tx_queued, lio->netdev, "Queued timestamp packet\n");
|
}
|
|
return retval;
|
}
|
|
/**
|
* liquidio_xmit - Transmit networks packets to the Octeon interface
|
* @skb: skbuff struct to be passed to network layer.
|
* @netdev: pointer to network device
|
*
|
* Return: whether the packet was transmitted to the device okay or not
|
* (NETDEV_TX_OK or NETDEV_TX_BUSY)
|
*/
|
static netdev_tx_t liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
|
{
|
struct lio *lio;
|
struct octnet_buf_free_info *finfo;
|
union octnic_cmd_setup cmdsetup;
|
struct octnic_data_pkt ndata;
|
struct octeon_device *oct;
|
struct oct_iq_stats *stats;
|
struct octeon_instr_irh *irh;
|
union tx_info *tx_info;
|
int status = 0;
|
int q_idx = 0, iq_no = 0;
|
int j, xmit_more = 0;
|
u64 dptr = 0;
|
u32 tag = 0;
|
|
lio = GET_LIO(netdev);
|
oct = lio->oct_dev;
|
|
q_idx = skb_iq(oct, skb);
|
tag = q_idx;
|
iq_no = lio->linfo.txpciq[q_idx].s.q_no;
|
|
stats = &oct->instr_queue[iq_no]->stats;
|
|
/* Check for all conditions in which the current packet cannot be
|
* transmitted.
|
*/
|
if (!(atomic_read(&lio->ifstate) & LIO_IFSTATE_RUNNING) ||
|
(!lio->linfo.link.s.link_up) ||
|
(skb->len <= 0)) {
|
netif_info(lio, tx_err, lio->netdev,
|
"Transmit failed link_status : %d\n",
|
lio->linfo.link.s.link_up);
|
goto lio_xmit_failed;
|
}
|
|
/* Use space in skb->cb to store info used to unmap and
|
* free the buffers.
|
*/
|
finfo = (struct octnet_buf_free_info *)skb->cb;
|
finfo->lio = lio;
|
finfo->skb = skb;
|
finfo->sc = NULL;
|
|
/* Prepare the attributes for the data to be passed to OSI. */
|
memset(&ndata, 0, sizeof(struct octnic_data_pkt));
|
|
ndata.buf = (void *)finfo;
|
|
ndata.q_no = iq_no;
|
|
if (octnet_iq_is_full(oct, ndata.q_no)) {
|
/* defer sending if queue is full */
|
netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
|
ndata.q_no);
|
stats->tx_iq_busy++;
|
return NETDEV_TX_BUSY;
|
}
|
|
/* pr_info(" XMIT - valid Qs: %d, 1st Q no: %d, cpu: %d, q_no:%d\n",
|
* lio->linfo.num_txpciq, lio->txq, cpu, ndata.q_no);
|
*/
|
|
ndata.datasize = skb->len;
|
|
cmdsetup.u64 = 0;
|
cmdsetup.s.iq_no = iq_no;
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL) {
|
if (skb->encapsulation) {
|
cmdsetup.s.tnl_csum = 1;
|
stats->tx_vxlan++;
|
} else {
|
cmdsetup.s.transport_csum = 1;
|
}
|
}
|
if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
|
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
|
cmdsetup.s.timestamp = 1;
|
}
|
|
if (skb_shinfo(skb)->nr_frags == 0) {
|
cmdsetup.s.u.datasize = skb->len;
|
octnet_prepare_pci_cmd(oct, &ndata.cmd, &cmdsetup, tag);
|
|
/* Offload checksum calculation for TCP/UDP packets */
|
dptr = dma_map_single(&oct->pci_dev->dev,
|
skb->data,
|
skb->len,
|
DMA_TO_DEVICE);
|
if (dma_mapping_error(&oct->pci_dev->dev, dptr)) {
|
dev_err(&oct->pci_dev->dev, "%s DMA mapping error 1\n",
|
__func__);
|
stats->tx_dmamap_fail++;
|
return NETDEV_TX_BUSY;
|
}
|
|
if (OCTEON_CN23XX_PF(oct))
|
ndata.cmd.cmd3.dptr = dptr;
|
else
|
ndata.cmd.cmd2.dptr = dptr;
|
finfo->dptr = dptr;
|
ndata.reqtype = REQTYPE_NORESP_NET;
|
|
} else {
|
int i, frags;
|
skb_frag_t *frag;
|
struct octnic_gather *g;
|
|
spin_lock(&lio->glist_lock[q_idx]);
|
g = (struct octnic_gather *)
|
lio_list_delete_head(&lio->glist[q_idx]);
|
spin_unlock(&lio->glist_lock[q_idx]);
|
|
if (!g) {
|
netif_info(lio, tx_err, lio->netdev,
|
"Transmit scatter gather: glist null!\n");
|
goto lio_xmit_failed;
|
}
|
|
cmdsetup.s.gather = 1;
|
cmdsetup.s.u.gatherptrs = (skb_shinfo(skb)->nr_frags + 1);
|
octnet_prepare_pci_cmd(oct, &ndata.cmd, &cmdsetup, tag);
|
|
memset(g->sg, 0, g->sg_size);
|
|
g->sg[0].ptr[0] = dma_map_single(&oct->pci_dev->dev,
|
skb->data,
|
(skb->len - skb->data_len),
|
DMA_TO_DEVICE);
|
if (dma_mapping_error(&oct->pci_dev->dev, g->sg[0].ptr[0])) {
|
dev_err(&oct->pci_dev->dev, "%s DMA mapping error 2\n",
|
__func__);
|
stats->tx_dmamap_fail++;
|
return NETDEV_TX_BUSY;
|
}
|
add_sg_size(&g->sg[0], (skb->len - skb->data_len), 0);
|
|
frags = skb_shinfo(skb)->nr_frags;
|
i = 1;
|
while (frags--) {
|
frag = &skb_shinfo(skb)->frags[i - 1];
|
|
g->sg[(i >> 2)].ptr[(i & 3)] =
|
skb_frag_dma_map(&oct->pci_dev->dev,
|
frag, 0, skb_frag_size(frag),
|
DMA_TO_DEVICE);
|
|
if (dma_mapping_error(&oct->pci_dev->dev,
|
g->sg[i >> 2].ptr[i & 3])) {
|
dma_unmap_single(&oct->pci_dev->dev,
|
g->sg[0].ptr[0],
|
skb->len - skb->data_len,
|
DMA_TO_DEVICE);
|
for (j = 1; j < i; j++) {
|
frag = &skb_shinfo(skb)->frags[j - 1];
|
dma_unmap_page(&oct->pci_dev->dev,
|
g->sg[j >> 2].ptr[j & 3],
|
skb_frag_size(frag),
|
DMA_TO_DEVICE);
|
}
|
dev_err(&oct->pci_dev->dev, "%s DMA mapping error 3\n",
|
__func__);
|
return NETDEV_TX_BUSY;
|
}
|
|
add_sg_size(&g->sg[(i >> 2)], skb_frag_size(frag),
|
(i & 3));
|
i++;
|
}
|
|
dptr = g->sg_dma_ptr;
|
|
if (OCTEON_CN23XX_PF(oct))
|
ndata.cmd.cmd3.dptr = dptr;
|
else
|
ndata.cmd.cmd2.dptr = dptr;
|
finfo->dptr = dptr;
|
finfo->g = g;
|
|
ndata.reqtype = REQTYPE_NORESP_NET_SG;
|
}
|
|
if (OCTEON_CN23XX_PF(oct)) {
|
irh = (struct octeon_instr_irh *)&ndata.cmd.cmd3.irh;
|
tx_info = (union tx_info *)&ndata.cmd.cmd3.ossp[0];
|
} else {
|
irh = (struct octeon_instr_irh *)&ndata.cmd.cmd2.irh;
|
tx_info = (union tx_info *)&ndata.cmd.cmd2.ossp[0];
|
}
|
|
if (skb_shinfo(skb)->gso_size) {
|
tx_info->s.gso_size = skb_shinfo(skb)->gso_size;
|
tx_info->s.gso_segs = skb_shinfo(skb)->gso_segs;
|
stats->tx_gso++;
|
}
|
|
/* HW insert VLAN tag */
|
if (skb_vlan_tag_present(skb)) {
|
irh->priority = skb_vlan_tag_get(skb) >> 13;
|
irh->vlan = skb_vlan_tag_get(skb) & 0xfff;
|
}
|
|
xmit_more = netdev_xmit_more();
|
|
if (unlikely(cmdsetup.s.timestamp))
|
status = send_nic_timestamp_pkt(oct, &ndata, finfo, xmit_more);
|
else
|
status = octnet_send_nic_data_pkt(oct, &ndata, xmit_more);
|
if (status == IQ_SEND_FAILED)
|
goto lio_xmit_failed;
|
|
netif_info(lio, tx_queued, lio->netdev, "Transmit queued successfully\n");
|
|
if (status == IQ_SEND_STOP)
|
netif_stop_subqueue(netdev, q_idx);
|
|
netif_trans_update(netdev);
|
|
if (tx_info->s.gso_segs)
|
stats->tx_done += tx_info->s.gso_segs;
|
else
|
stats->tx_done++;
|
stats->tx_tot_bytes += ndata.datasize;
|
|
return NETDEV_TX_OK;
|
|
lio_xmit_failed:
|
stats->tx_dropped++;
|
netif_info(lio, tx_err, lio->netdev, "IQ%d Transmit dropped:%llu\n",
|
iq_no, stats->tx_dropped);
|
if (dptr)
|
dma_unmap_single(&oct->pci_dev->dev, dptr,
|
ndata.datasize, DMA_TO_DEVICE);
|
|
octeon_ring_doorbell_locked(oct, iq_no);
|
|
tx_buffer_free(skb);
|
return NETDEV_TX_OK;
|
}
|
|
/**
|
* liquidio_tx_timeout - Network device Tx timeout
|
* @netdev: pointer to network device
|
* @txqueue: index of the hung transmit queue
|
*/
|
static void liquidio_tx_timeout(struct net_device *netdev, unsigned int txqueue)
|
{
|
struct lio *lio;
|
|
lio = GET_LIO(netdev);
|
|
netif_info(lio, tx_err, lio->netdev,
|
"Transmit timeout tx_dropped:%ld, waking up queues now!!\n",
|
netdev->stats.tx_dropped);
|
netif_trans_update(netdev);
|
wake_txqs(netdev);
|
}
|
|
static int liquidio_vlan_rx_add_vid(struct net_device *netdev,
|
__be16 proto __attribute__((unused)),
|
u16 vid)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int ret = 0;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = OCTNET_CMD_ADD_VLAN_FILTER;
|
nctrl.ncmd.s.param1 = vid;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
|
|
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
|
if (ret) {
|
dev_err(&oct->pci_dev->dev, "Add VLAN filter failed in core (ret: 0x%x)\n",
|
ret);
|
if (ret > 0)
|
ret = -EIO;
|
}
|
|
return ret;
|
}
|
|
static int liquidio_vlan_rx_kill_vid(struct net_device *netdev,
|
__be16 proto __attribute__((unused)),
|
u16 vid)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int ret = 0;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = OCTNET_CMD_DEL_VLAN_FILTER;
|
nctrl.ncmd.s.param1 = vid;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
|
|
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
|
if (ret) {
|
dev_err(&oct->pci_dev->dev, "Del VLAN filter failed in core (ret: 0x%x)\n",
|
ret);
|
if (ret > 0)
|
ret = -EIO;
|
}
|
return ret;
|
}
|
|
/**
|
* liquidio_set_rxcsum_command - Sending command to enable/disable RX checksum offload
|
* @netdev: pointer to network device
|
* @command: OCTNET_CMD_TNL_RX_CSUM_CTL
|
* @rx_cmd: OCTNET_CMD_RXCSUM_ENABLE/OCTNET_CMD_RXCSUM_DISABLE
|
* Returns: SUCCESS or FAILURE
|
*/
|
static int liquidio_set_rxcsum_command(struct net_device *netdev, int command,
|
u8 rx_cmd)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int ret = 0;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = command;
|
nctrl.ncmd.s.param1 = rx_cmd;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
|
|
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
|
if (ret) {
|
dev_err(&oct->pci_dev->dev,
|
"DEVFLAGS RXCSUM change failed in core(ret:0x%x)\n",
|
ret);
|
if (ret > 0)
|
ret = -EIO;
|
}
|
return ret;
|
}
|
|
/**
|
* liquidio_vxlan_port_command - Sending command to add/delete VxLAN UDP port to firmware
|
* @netdev: pointer to network device
|
* @command: OCTNET_CMD_VXLAN_PORT_CONFIG
|
* @vxlan_port: VxLAN port to be added or deleted
|
* @vxlan_cmd_bit: OCTNET_CMD_VXLAN_PORT_ADD,
|
* OCTNET_CMD_VXLAN_PORT_DEL
|
* Return: SUCCESS or FAILURE
|
*/
|
static int liquidio_vxlan_port_command(struct net_device *netdev, int command,
|
u16 vxlan_port, u8 vxlan_cmd_bit)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int ret = 0;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = command;
|
nctrl.ncmd.s.more = vxlan_cmd_bit;
|
nctrl.ncmd.s.param1 = vxlan_port;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
|
|
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
|
if (ret) {
|
dev_err(&oct->pci_dev->dev,
|
"VxLAN port add/delete failed in core (ret:0x%x)\n",
|
ret);
|
if (ret > 0)
|
ret = -EIO;
|
}
|
return ret;
|
}
|
|
static int liquidio_udp_tunnel_set_port(struct net_device *netdev,
|
unsigned int table, unsigned int entry,
|
struct udp_tunnel_info *ti)
|
{
|
return liquidio_vxlan_port_command(netdev,
|
OCTNET_CMD_VXLAN_PORT_CONFIG,
|
htons(ti->port),
|
OCTNET_CMD_VXLAN_PORT_ADD);
|
}
|
|
static int liquidio_udp_tunnel_unset_port(struct net_device *netdev,
|
unsigned int table,
|
unsigned int entry,
|
struct udp_tunnel_info *ti)
|
{
|
return liquidio_vxlan_port_command(netdev,
|
OCTNET_CMD_VXLAN_PORT_CONFIG,
|
htons(ti->port),
|
OCTNET_CMD_VXLAN_PORT_DEL);
|
}
|
|
static const struct udp_tunnel_nic_info liquidio_udp_tunnels = {
|
.set_port = liquidio_udp_tunnel_set_port,
|
.unset_port = liquidio_udp_tunnel_unset_port,
|
.tables = {
|
{ .n_entries = 1024, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
|
},
|
};
|
|
/**
|
* liquidio_fix_features - Net device fix features
|
* @netdev: pointer to network device
|
* @request: features requested
|
* Return: updated features list
|
*/
|
static netdev_features_t liquidio_fix_features(struct net_device *netdev,
|
netdev_features_t request)
|
{
|
struct lio *lio = netdev_priv(netdev);
|
|
if ((request & NETIF_F_RXCSUM) &&
|
!(lio->dev_capability & NETIF_F_RXCSUM))
|
request &= ~NETIF_F_RXCSUM;
|
|
if ((request & NETIF_F_HW_CSUM) &&
|
!(lio->dev_capability & NETIF_F_HW_CSUM))
|
request &= ~NETIF_F_HW_CSUM;
|
|
if ((request & NETIF_F_TSO) && !(lio->dev_capability & NETIF_F_TSO))
|
request &= ~NETIF_F_TSO;
|
|
if ((request & NETIF_F_TSO6) && !(lio->dev_capability & NETIF_F_TSO6))
|
request &= ~NETIF_F_TSO6;
|
|
if ((request & NETIF_F_LRO) && !(lio->dev_capability & NETIF_F_LRO))
|
request &= ~NETIF_F_LRO;
|
|
/*Disable LRO if RXCSUM is off */
|
if (!(request & NETIF_F_RXCSUM) && (netdev->features & NETIF_F_LRO) &&
|
(lio->dev_capability & NETIF_F_LRO))
|
request &= ~NETIF_F_LRO;
|
|
if ((request & NETIF_F_HW_VLAN_CTAG_FILTER) &&
|
!(lio->dev_capability & NETIF_F_HW_VLAN_CTAG_FILTER))
|
request &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
|
|
return request;
|
}
|
|
/**
|
* liquidio_set_features - Net device set features
|
* @netdev: pointer to network device
|
* @features: features to enable/disable
|
*/
|
static int liquidio_set_features(struct net_device *netdev,
|
netdev_features_t features)
|
{
|
struct lio *lio = netdev_priv(netdev);
|
|
if ((features & NETIF_F_LRO) &&
|
(lio->dev_capability & NETIF_F_LRO) &&
|
!(netdev->features & NETIF_F_LRO))
|
liquidio_set_feature(netdev, OCTNET_CMD_LRO_ENABLE,
|
OCTNIC_LROIPV4 | OCTNIC_LROIPV6);
|
else if (!(features & NETIF_F_LRO) &&
|
(lio->dev_capability & NETIF_F_LRO) &&
|
(netdev->features & NETIF_F_LRO))
|
liquidio_set_feature(netdev, OCTNET_CMD_LRO_DISABLE,
|
OCTNIC_LROIPV4 | OCTNIC_LROIPV6);
|
|
/* Sending command to firmware to enable/disable RX checksum
|
* offload settings using ethtool
|
*/
|
if (!(netdev->features & NETIF_F_RXCSUM) &&
|
(lio->enc_dev_capability & NETIF_F_RXCSUM) &&
|
(features & NETIF_F_RXCSUM))
|
liquidio_set_rxcsum_command(netdev,
|
OCTNET_CMD_TNL_RX_CSUM_CTL,
|
OCTNET_CMD_RXCSUM_ENABLE);
|
else if ((netdev->features & NETIF_F_RXCSUM) &&
|
(lio->enc_dev_capability & NETIF_F_RXCSUM) &&
|
!(features & NETIF_F_RXCSUM))
|
liquidio_set_rxcsum_command(netdev, OCTNET_CMD_TNL_RX_CSUM_CTL,
|
OCTNET_CMD_RXCSUM_DISABLE);
|
|
if ((features & NETIF_F_HW_VLAN_CTAG_FILTER) &&
|
(lio->dev_capability & NETIF_F_HW_VLAN_CTAG_FILTER) &&
|
!(netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
|
liquidio_set_feature(netdev, OCTNET_CMD_VLAN_FILTER_CTL,
|
OCTNET_CMD_VLAN_FILTER_ENABLE);
|
else if (!(features & NETIF_F_HW_VLAN_CTAG_FILTER) &&
|
(lio->dev_capability & NETIF_F_HW_VLAN_CTAG_FILTER) &&
|
(netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
|
liquidio_set_feature(netdev, OCTNET_CMD_VLAN_FILTER_CTL,
|
OCTNET_CMD_VLAN_FILTER_DISABLE);
|
|
return 0;
|
}
|
|
static int __liquidio_set_vf_mac(struct net_device *netdev, int vfidx,
|
u8 *mac, bool is_admin_assigned)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int ret = 0;
|
|
if (!is_valid_ether_addr(mac))
|
return -EINVAL;
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.max_vfs)
|
return -EINVAL;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
nctrl.ncmd.u64 = 0;
|
nctrl.ncmd.s.cmd = OCTNET_CMD_CHANGE_MACADDR;
|
/* vfidx is 0 based, but vf_num (param1) is 1 based */
|
nctrl.ncmd.s.param1 = vfidx + 1;
|
nctrl.ncmd.s.more = 1;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.netpndev = (u64)netdev;
|
if (is_admin_assigned) {
|
nctrl.ncmd.s.param2 = true;
|
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
|
}
|
|
nctrl.udd[0] = 0;
|
/* The MAC Address is presented in network byte order. */
|
ether_addr_copy((u8 *)&nctrl.udd[0] + 2, mac);
|
|
oct->sriov_info.vf_macaddr[vfidx] = nctrl.udd[0];
|
|
ret = octnet_send_nic_ctrl_pkt(oct, &nctrl);
|
if (ret > 0)
|
ret = -EIO;
|
|
return ret;
|
}
|
|
static int liquidio_set_vf_mac(struct net_device *netdev, int vfidx, u8 *mac)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
int retval;
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced)
|
return -EINVAL;
|
|
retval = __liquidio_set_vf_mac(netdev, vfidx, mac, true);
|
if (!retval)
|
cn23xx_tell_vf_its_macaddr_changed(oct, vfidx, mac);
|
|
return retval;
|
}
|
|
static int liquidio_set_vf_spoofchk(struct net_device *netdev, int vfidx,
|
bool enable)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int retval;
|
|
if (!(oct->fw_info.app_cap_flags & LIQUIDIO_SPOOFCHK_CAP)) {
|
netif_info(lio, drv, lio->netdev,
|
"firmware does not support spoofchk\n");
|
return -EOPNOTSUPP;
|
}
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced) {
|
netif_info(lio, drv, lio->netdev, "Invalid vfidx %d\n", vfidx);
|
return -EINVAL;
|
}
|
|
if (enable) {
|
if (oct->sriov_info.vf_spoofchk[vfidx])
|
return 0;
|
} else {
|
/* Clear */
|
if (!oct->sriov_info.vf_spoofchk[vfidx])
|
return 0;
|
}
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
nctrl.ncmd.s.cmdgroup = OCTNET_CMD_GROUP1;
|
nctrl.ncmd.s.cmd = OCTNET_CMD_SET_VF_SPOOFCHK;
|
nctrl.ncmd.s.param1 =
|
vfidx + 1; /* vfidx is 0 based,
|
* but vf_num (param1) is 1 based
|
*/
|
nctrl.ncmd.s.param2 = enable;
|
nctrl.ncmd.s.more = 0;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.cb_fn = NULL;
|
|
retval = octnet_send_nic_ctrl_pkt(oct, &nctrl);
|
|
if (retval) {
|
netif_info(lio, drv, lio->netdev,
|
"Failed to set VF %d spoofchk %s\n", vfidx,
|
enable ? "on" : "off");
|
return -1;
|
}
|
|
oct->sriov_info.vf_spoofchk[vfidx] = enable;
|
netif_info(lio, drv, lio->netdev, "VF %u spoofchk is %s\n", vfidx,
|
enable ? "on" : "off");
|
|
return 0;
|
}
|
|
static int liquidio_set_vf_vlan(struct net_device *netdev, int vfidx,
|
u16 vlan, u8 qos, __be16 vlan_proto)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
u16 vlantci;
|
int ret = 0;
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced)
|
return -EINVAL;
|
|
if (vlan_proto != htons(ETH_P_8021Q))
|
return -EPROTONOSUPPORT;
|
|
if (vlan >= VLAN_N_VID || qos > 7)
|
return -EINVAL;
|
|
if (vlan)
|
vlantci = vlan | (u16)qos << VLAN_PRIO_SHIFT;
|
else
|
vlantci = 0;
|
|
if (oct->sriov_info.vf_vlantci[vfidx] == vlantci)
|
return 0;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
|
if (vlan)
|
nctrl.ncmd.s.cmd = OCTNET_CMD_ADD_VLAN_FILTER;
|
else
|
nctrl.ncmd.s.cmd = OCTNET_CMD_DEL_VLAN_FILTER;
|
|
nctrl.ncmd.s.param1 = vlantci;
|
nctrl.ncmd.s.param2 =
|
vfidx + 1; /* vfidx is 0 based, but vf_num (param2) is 1 based */
|
nctrl.ncmd.s.more = 0;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.cb_fn = NULL;
|
|
ret = octnet_send_nic_ctrl_pkt(oct, &nctrl);
|
if (ret) {
|
if (ret > 0)
|
ret = -EIO;
|
return ret;
|
}
|
|
oct->sriov_info.vf_vlantci[vfidx] = vlantci;
|
|
return ret;
|
}
|
|
static int liquidio_get_vf_config(struct net_device *netdev, int vfidx,
|
struct ifla_vf_info *ivi)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
u8 *macaddr;
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced)
|
return -EINVAL;
|
|
memset(ivi, 0, sizeof(struct ifla_vf_info));
|
|
ivi->vf = vfidx;
|
macaddr = 2 + (u8 *)&oct->sriov_info.vf_macaddr[vfidx];
|
ether_addr_copy(&ivi->mac[0], macaddr);
|
ivi->vlan = oct->sriov_info.vf_vlantci[vfidx] & VLAN_VID_MASK;
|
ivi->qos = oct->sriov_info.vf_vlantci[vfidx] >> VLAN_PRIO_SHIFT;
|
if (oct->sriov_info.trusted_vf.active &&
|
oct->sriov_info.trusted_vf.id == vfidx)
|
ivi->trusted = true;
|
else
|
ivi->trusted = false;
|
ivi->linkstate = oct->sriov_info.vf_linkstate[vfidx];
|
ivi->spoofchk = oct->sriov_info.vf_spoofchk[vfidx];
|
ivi->max_tx_rate = lio->linfo.link.s.speed;
|
ivi->min_tx_rate = 0;
|
|
return 0;
|
}
|
|
static int liquidio_send_vf_trust_cmd(struct lio *lio, int vfidx, bool trusted)
|
{
|
struct octeon_device *oct = lio->oct_dev;
|
struct octeon_soft_command *sc;
|
int retval;
|
|
sc = octeon_alloc_soft_command(oct, 0, 16, 0);
|
if (!sc)
|
return -ENOMEM;
|
|
sc->iq_no = lio->linfo.txpciq[0].s.q_no;
|
|
/* vfidx is 0 based, but vf_num (param1) is 1 based */
|
octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
|
OPCODE_NIC_SET_TRUSTED_VF, 0, vfidx + 1,
|
trusted);
|
|
init_completion(&sc->complete);
|
sc->sc_status = OCTEON_REQUEST_PENDING;
|
|
retval = octeon_send_soft_command(oct, sc);
|
if (retval == IQ_SEND_FAILED) {
|
octeon_free_soft_command(oct, sc);
|
retval = -1;
|
} else {
|
/* Wait for response or timeout */
|
retval = wait_for_sc_completion_timeout(oct, sc, 0);
|
if (retval)
|
return (retval);
|
|
WRITE_ONCE(sc->caller_is_done, true);
|
}
|
|
return retval;
|
}
|
|
static int liquidio_set_vf_trust(struct net_device *netdev, int vfidx,
|
bool setting)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
|
if (strcmp(oct->fw_info.liquidio_firmware_version, "1.7.1") < 0) {
|
/* trusted vf is not supported by firmware older than 1.7.1 */
|
return -EOPNOTSUPP;
|
}
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced) {
|
netif_info(lio, drv, lio->netdev, "Invalid vfidx %d\n", vfidx);
|
return -EINVAL;
|
}
|
|
if (setting) {
|
/* Set */
|
|
if (oct->sriov_info.trusted_vf.active &&
|
oct->sriov_info.trusted_vf.id == vfidx)
|
return 0;
|
|
if (oct->sriov_info.trusted_vf.active) {
|
netif_info(lio, drv, lio->netdev, "More than one trusted VF is not allowed\n");
|
return -EPERM;
|
}
|
} else {
|
/* Clear */
|
|
if (!oct->sriov_info.trusted_vf.active)
|
return 0;
|
}
|
|
if (!liquidio_send_vf_trust_cmd(lio, vfidx, setting)) {
|
if (setting) {
|
oct->sriov_info.trusted_vf.id = vfidx;
|
oct->sriov_info.trusted_vf.active = true;
|
} else {
|
oct->sriov_info.trusted_vf.active = false;
|
}
|
|
netif_info(lio, drv, lio->netdev, "VF %u is %strusted\n", vfidx,
|
setting ? "" : "not ");
|
} else {
|
netif_info(lio, drv, lio->netdev, "Failed to set VF trusted\n");
|
return -1;
|
}
|
|
return 0;
|
}
|
|
static int liquidio_set_vf_link_state(struct net_device *netdev, int vfidx,
|
int linkstate)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct octnic_ctrl_pkt nctrl;
|
int ret = 0;
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced)
|
return -EINVAL;
|
|
if (oct->sriov_info.vf_linkstate[vfidx] == linkstate)
|
return 0;
|
|
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
|
nctrl.ncmd.s.cmd = OCTNET_CMD_SET_VF_LINKSTATE;
|
nctrl.ncmd.s.param1 =
|
vfidx + 1; /* vfidx is 0 based, but vf_num (param1) is 1 based */
|
nctrl.ncmd.s.param2 = linkstate;
|
nctrl.ncmd.s.more = 0;
|
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
|
nctrl.cb_fn = NULL;
|
|
ret = octnet_send_nic_ctrl_pkt(oct, &nctrl);
|
|
if (!ret)
|
oct->sriov_info.vf_linkstate[vfidx] = linkstate;
|
else if (ret > 0)
|
ret = -EIO;
|
|
return ret;
|
}
|
|
static int
|
liquidio_eswitch_mode_get(struct devlink *devlink, u16 *mode)
|
{
|
struct lio_devlink_priv *priv;
|
struct octeon_device *oct;
|
|
priv = devlink_priv(devlink);
|
oct = priv->oct;
|
|
*mode = oct->eswitch_mode;
|
|
return 0;
|
}
|
|
static int
|
liquidio_eswitch_mode_set(struct devlink *devlink, u16 mode,
|
struct netlink_ext_ack *extack)
|
{
|
struct lio_devlink_priv *priv;
|
struct octeon_device *oct;
|
int ret = 0;
|
|
priv = devlink_priv(devlink);
|
oct = priv->oct;
|
|
if (!(oct->fw_info.app_cap_flags & LIQUIDIO_SWITCHDEV_CAP))
|
return -EINVAL;
|
|
if (oct->eswitch_mode == mode)
|
return 0;
|
|
switch (mode) {
|
case DEVLINK_ESWITCH_MODE_SWITCHDEV:
|
oct->eswitch_mode = mode;
|
ret = lio_vf_rep_create(oct);
|
break;
|
|
case DEVLINK_ESWITCH_MODE_LEGACY:
|
lio_vf_rep_destroy(oct);
|
oct->eswitch_mode = mode;
|
break;
|
|
default:
|
ret = -EINVAL;
|
}
|
|
return ret;
|
}
|
|
static const struct devlink_ops liquidio_devlink_ops = {
|
.eswitch_mode_get = liquidio_eswitch_mode_get,
|
.eswitch_mode_set = liquidio_eswitch_mode_set,
|
};
|
|
static int
|
liquidio_get_port_parent_id(struct net_device *dev,
|
struct netdev_phys_item_id *ppid)
|
{
|
struct lio *lio = GET_LIO(dev);
|
struct octeon_device *oct = lio->oct_dev;
|
|
if (oct->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)
|
return -EOPNOTSUPP;
|
|
ppid->id_len = ETH_ALEN;
|
ether_addr_copy(ppid->id, (void *)&lio->linfo.hw_addr + 2);
|
|
return 0;
|
}
|
|
static int liquidio_get_vf_stats(struct net_device *netdev, int vfidx,
|
struct ifla_vf_stats *vf_stats)
|
{
|
struct lio *lio = GET_LIO(netdev);
|
struct octeon_device *oct = lio->oct_dev;
|
struct oct_vf_stats stats;
|
int ret;
|
|
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced)
|
return -EINVAL;
|
|
memset(&stats, 0, sizeof(struct oct_vf_stats));
|
ret = cn23xx_get_vf_stats(oct, vfidx, &stats);
|
if (!ret) {
|
vf_stats->rx_packets = stats.rx_packets;
|
vf_stats->tx_packets = stats.tx_packets;
|
vf_stats->rx_bytes = stats.rx_bytes;
|
vf_stats->tx_bytes = stats.tx_bytes;
|
vf_stats->broadcast = stats.broadcast;
|
vf_stats->multicast = stats.multicast;
|
}
|
|
return ret;
|
}
|
|
static const struct net_device_ops lionetdevops = {
|
.ndo_open = liquidio_open,
|
.ndo_stop = liquidio_stop,
|
.ndo_start_xmit = liquidio_xmit,
|
.ndo_get_stats64 = liquidio_get_stats64,
|
.ndo_set_mac_address = liquidio_set_mac,
|
.ndo_set_rx_mode = liquidio_set_mcast_list,
|
.ndo_tx_timeout = liquidio_tx_timeout,
|
|
.ndo_vlan_rx_add_vid = liquidio_vlan_rx_add_vid,
|
.ndo_vlan_rx_kill_vid = liquidio_vlan_rx_kill_vid,
|
.ndo_change_mtu = liquidio_change_mtu,
|
.ndo_do_ioctl = liquidio_ioctl,
|
.ndo_fix_features = liquidio_fix_features,
|
.ndo_set_features = liquidio_set_features,
|
.ndo_udp_tunnel_add = udp_tunnel_nic_add_port,
|
.ndo_udp_tunnel_del = udp_tunnel_nic_del_port,
|
.ndo_set_vf_mac = liquidio_set_vf_mac,
|
.ndo_set_vf_vlan = liquidio_set_vf_vlan,
|
.ndo_get_vf_config = liquidio_get_vf_config,
|
.ndo_set_vf_spoofchk = liquidio_set_vf_spoofchk,
|
.ndo_set_vf_trust = liquidio_set_vf_trust,
|
.ndo_set_vf_link_state = liquidio_set_vf_link_state,
|
.ndo_get_vf_stats = liquidio_get_vf_stats,
|
.ndo_get_port_parent_id = liquidio_get_port_parent_id,
|
};
|
|
/**
|
* liquidio_init - Entry point for the liquidio module
|
*/
|
static int __init liquidio_init(void)
|
{
|
int i;
|
struct handshake *hs;
|
|
init_completion(&first_stage);
|
|
octeon_init_device_list(OCTEON_CONFIG_TYPE_DEFAULT);
|
|
if (liquidio_init_pci())
|
return -EINVAL;
|
|
wait_for_completion_timeout(&first_stage, msecs_to_jiffies(1000));
|
|
for (i = 0; i < MAX_OCTEON_DEVICES; i++) {
|
hs = &handshake[i];
|
if (hs->pci_dev) {
|
wait_for_completion(&hs->init);
|
if (!hs->init_ok) {
|
/* init handshake failed */
|
dev_err(&hs->pci_dev->dev,
|
"Failed to init device\n");
|
liquidio_deinit_pci();
|
return -EIO;
|
}
|
}
|
}
|
|
for (i = 0; i < MAX_OCTEON_DEVICES; i++) {
|
hs = &handshake[i];
|
if (hs->pci_dev) {
|
wait_for_completion_timeout(&hs->started,
|
msecs_to_jiffies(30000));
|
if (!hs->started_ok) {
|
/* starter handshake failed */
|
dev_err(&hs->pci_dev->dev,
|
"Firmware failed to start\n");
|
liquidio_deinit_pci();
|
return -EIO;
|
}
|
}
|
}
|
|
return 0;
|
}
|
|
static int lio_nic_info(struct octeon_recv_info *recv_info, void *buf)
|
{
|
struct octeon_device *oct = (struct octeon_device *)buf;
|
struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt;
|
int gmxport = 0;
|
union oct_link_status *ls;
|
int i;
|
|
if (recv_pkt->buffer_size[0] != (sizeof(*ls) + OCT_DROQ_INFO_SIZE)) {
|
dev_err(&oct->pci_dev->dev, "Malformed NIC_INFO, len=%d, ifidx=%d\n",
|
recv_pkt->buffer_size[0],
|
recv_pkt->rh.r_nic_info.gmxport);
|
goto nic_info_err;
|
}
|
|
gmxport = recv_pkt->rh.r_nic_info.gmxport;
|
ls = (union oct_link_status *)(get_rbd(recv_pkt->buffer_ptr[0]) +
|
OCT_DROQ_INFO_SIZE);
|
|
octeon_swap_8B_data((u64 *)ls, (sizeof(union oct_link_status)) >> 3);
|
for (i = 0; i < oct->ifcount; i++) {
|
if (oct->props[i].gmxport == gmxport) {
|
update_link_status(oct->props[i].netdev, ls);
|
break;
|
}
|
}
|
|
nic_info_err:
|
for (i = 0; i < recv_pkt->buffer_count; i++)
|
recv_buffer_free(recv_pkt->buffer_ptr[i]);
|
octeon_free_recv_info(recv_info);
|
return 0;
|
}
|
|
/**
|
* setup_nic_devices - Setup network interfaces
|
* @octeon_dev: octeon device
|
*
|
* Called during init time for each device. It assumes the NIC
|
* is already up and running. The link information for each
|
* interface is passed in link_info.
|
*/
|
static int setup_nic_devices(struct octeon_device *octeon_dev)
|
{
|
struct lio *lio = NULL;
|
struct net_device *netdev;
|
u8 mac[6], i, j, *fw_ver, *micro_ver;
|
unsigned long micro;
|
u32 cur_ver;
|
struct octeon_soft_command *sc;
|
struct liquidio_if_cfg_resp *resp;
|
struct octdev_props *props;
|
int retval, num_iqueues, num_oqueues;
|
int max_num_queues = 0;
|
union oct_nic_if_cfg if_cfg;
|
unsigned int base_queue;
|
unsigned int gmx_port_id;
|
u32 resp_size, data_size;
|
u32 ifidx_or_pfnum;
|
struct lio_version *vdata;
|
struct devlink *devlink;
|
struct lio_devlink_priv *lio_devlink;
|
|
/* This is to handle link status changes */
|
octeon_register_dispatch_fn(octeon_dev, OPCODE_NIC,
|
OPCODE_NIC_INFO,
|
lio_nic_info, octeon_dev);
|
|
/* REQTYPE_RESP_NET and REQTYPE_SOFT_COMMAND do not have free functions.
|
* They are handled directly.
|
*/
|
octeon_register_reqtype_free_fn(octeon_dev, REQTYPE_NORESP_NET,
|
free_netbuf);
|
|
octeon_register_reqtype_free_fn(octeon_dev, REQTYPE_NORESP_NET_SG,
|
free_netsgbuf);
|
|
octeon_register_reqtype_free_fn(octeon_dev, REQTYPE_RESP_NET_SG,
|
free_netsgbuf_with_resp);
|
|
for (i = 0; i < octeon_dev->ifcount; i++) {
|
resp_size = sizeof(struct liquidio_if_cfg_resp);
|
data_size = sizeof(struct lio_version);
|
sc = (struct octeon_soft_command *)
|
octeon_alloc_soft_command(octeon_dev, data_size,
|
resp_size, 0);
|
resp = (struct liquidio_if_cfg_resp *)sc->virtrptr;
|
vdata = (struct lio_version *)sc->virtdptr;
|
|
*((u64 *)vdata) = 0;
|
vdata->major = cpu_to_be16(LIQUIDIO_BASE_MAJOR_VERSION);
|
vdata->minor = cpu_to_be16(LIQUIDIO_BASE_MINOR_VERSION);
|
vdata->micro = cpu_to_be16(LIQUIDIO_BASE_MICRO_VERSION);
|
|
if (OCTEON_CN23XX_PF(octeon_dev)) {
|
num_iqueues = octeon_dev->sriov_info.num_pf_rings;
|
num_oqueues = octeon_dev->sriov_info.num_pf_rings;
|
base_queue = octeon_dev->sriov_info.pf_srn;
|
|
gmx_port_id = octeon_dev->pf_num;
|
ifidx_or_pfnum = octeon_dev->pf_num;
|
} else {
|
num_iqueues = CFG_GET_NUM_TXQS_NIC_IF(
|
octeon_get_conf(octeon_dev), i);
|
num_oqueues = CFG_GET_NUM_RXQS_NIC_IF(
|
octeon_get_conf(octeon_dev), i);
|
base_queue = CFG_GET_BASE_QUE_NIC_IF(
|
octeon_get_conf(octeon_dev), i);
|
gmx_port_id = CFG_GET_GMXID_NIC_IF(
|
octeon_get_conf(octeon_dev), i);
|
ifidx_or_pfnum = i;
|
}
|
|
dev_dbg(&octeon_dev->pci_dev->dev,
|
"requesting config for interface %d, iqs %d, oqs %d\n",
|
ifidx_or_pfnum, num_iqueues, num_oqueues);
|
|
if_cfg.u64 = 0;
|
if_cfg.s.num_iqueues = num_iqueues;
|
if_cfg.s.num_oqueues = num_oqueues;
|
if_cfg.s.base_queue = base_queue;
|
if_cfg.s.gmx_port_id = gmx_port_id;
|
|
sc->iq_no = 0;
|
|
octeon_prepare_soft_command(octeon_dev, sc, OPCODE_NIC,
|
OPCODE_NIC_IF_CFG, 0,
|
if_cfg.u64, 0);
|
|
init_completion(&sc->complete);
|
sc->sc_status = OCTEON_REQUEST_PENDING;
|
|
retval = octeon_send_soft_command(octeon_dev, sc);
|
if (retval == IQ_SEND_FAILED) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"iq/oq config failed status: %x\n",
|
retval);
|
/* Soft instr is freed by driver in case of failure. */
|
octeon_free_soft_command(octeon_dev, sc);
|
return(-EIO);
|
}
|
|
/* Sleep on a wait queue till the cond flag indicates that the
|
* response arrived or timed-out.
|
*/
|
retval = wait_for_sc_completion_timeout(octeon_dev, sc, 0);
|
if (retval)
|
return retval;
|
|
retval = resp->status;
|
if (retval) {
|
dev_err(&octeon_dev->pci_dev->dev, "iq/oq config failed\n");
|
WRITE_ONCE(sc->caller_is_done, true);
|
goto setup_nic_dev_done;
|
}
|
snprintf(octeon_dev->fw_info.liquidio_firmware_version,
|
32, "%s",
|
resp->cfg_info.liquidio_firmware_version);
|
|
/* Verify f/w version (in case of 'auto' loading from flash) */
|
fw_ver = octeon_dev->fw_info.liquidio_firmware_version;
|
if (memcmp(LIQUIDIO_BASE_VERSION,
|
fw_ver,
|
strlen(LIQUIDIO_BASE_VERSION))) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"Unmatched firmware version. Expected %s.x, got %s.\n",
|
LIQUIDIO_BASE_VERSION, fw_ver);
|
WRITE_ONCE(sc->caller_is_done, true);
|
goto setup_nic_dev_done;
|
} else if (atomic_read(octeon_dev->adapter_fw_state) ==
|
FW_IS_PRELOADED) {
|
dev_info(&octeon_dev->pci_dev->dev,
|
"Using auto-loaded firmware version %s.\n",
|
fw_ver);
|
}
|
|
/* extract micro version field; point past '<maj>.<min>.' */
|
micro_ver = fw_ver + strlen(LIQUIDIO_BASE_VERSION) + 1;
|
if (kstrtoul(micro_ver, 10, µ) != 0)
|
micro = 0;
|
octeon_dev->fw_info.ver.maj = LIQUIDIO_BASE_MAJOR_VERSION;
|
octeon_dev->fw_info.ver.min = LIQUIDIO_BASE_MINOR_VERSION;
|
octeon_dev->fw_info.ver.rev = micro;
|
|
octeon_swap_8B_data((u64 *)(&resp->cfg_info),
|
(sizeof(struct liquidio_if_cfg_info)) >> 3);
|
|
num_iqueues = hweight64(resp->cfg_info.iqmask);
|
num_oqueues = hweight64(resp->cfg_info.oqmask);
|
|
if (!(num_iqueues) || !(num_oqueues)) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"Got bad iqueues (%016llx) or oqueues (%016llx) from firmware.\n",
|
resp->cfg_info.iqmask,
|
resp->cfg_info.oqmask);
|
WRITE_ONCE(sc->caller_is_done, true);
|
goto setup_nic_dev_done;
|
}
|
|
if (OCTEON_CN6XXX(octeon_dev)) {
|
max_num_queues = CFG_GET_IQ_MAX_Q(CHIP_CONF(octeon_dev,
|
cn6xxx));
|
} else if (OCTEON_CN23XX_PF(octeon_dev)) {
|
max_num_queues = CFG_GET_IQ_MAX_Q(CHIP_CONF(octeon_dev,
|
cn23xx_pf));
|
}
|
|
dev_dbg(&octeon_dev->pci_dev->dev,
|
"interface %d, iqmask %016llx, oqmask %016llx, numiqueues %d, numoqueues %d max_num_queues: %d\n",
|
i, resp->cfg_info.iqmask, resp->cfg_info.oqmask,
|
num_iqueues, num_oqueues, max_num_queues);
|
netdev = alloc_etherdev_mq(LIO_SIZE, max_num_queues);
|
|
if (!netdev) {
|
dev_err(&octeon_dev->pci_dev->dev, "Device allocation failed\n");
|
WRITE_ONCE(sc->caller_is_done, true);
|
goto setup_nic_dev_done;
|
}
|
|
SET_NETDEV_DEV(netdev, &octeon_dev->pci_dev->dev);
|
|
/* Associate the routines that will handle different
|
* netdev tasks.
|
*/
|
netdev->netdev_ops = &lionetdevops;
|
|
retval = netif_set_real_num_rx_queues(netdev, num_oqueues);
|
if (retval) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"setting real number rx failed\n");
|
WRITE_ONCE(sc->caller_is_done, true);
|
goto setup_nic_dev_free;
|
}
|
|
retval = netif_set_real_num_tx_queues(netdev, num_iqueues);
|
if (retval) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"setting real number tx failed\n");
|
WRITE_ONCE(sc->caller_is_done, true);
|
goto setup_nic_dev_free;
|
}
|
|
lio = GET_LIO(netdev);
|
|
memset(lio, 0, sizeof(struct lio));
|
|
lio->ifidx = ifidx_or_pfnum;
|
|
props = &octeon_dev->props[i];
|
props->gmxport = resp->cfg_info.linfo.gmxport;
|
props->netdev = netdev;
|
|
lio->linfo.num_rxpciq = num_oqueues;
|
lio->linfo.num_txpciq = num_iqueues;
|
for (j = 0; j < num_oqueues; j++) {
|
lio->linfo.rxpciq[j].u64 =
|
resp->cfg_info.linfo.rxpciq[j].u64;
|
}
|
for (j = 0; j < num_iqueues; j++) {
|
lio->linfo.txpciq[j].u64 =
|
resp->cfg_info.linfo.txpciq[j].u64;
|
}
|
lio->linfo.hw_addr = resp->cfg_info.linfo.hw_addr;
|
lio->linfo.gmxport = resp->cfg_info.linfo.gmxport;
|
lio->linfo.link.u64 = resp->cfg_info.linfo.link.u64;
|
|
WRITE_ONCE(sc->caller_is_done, true);
|
|
lio->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
|
|
if (OCTEON_CN23XX_PF(octeon_dev) ||
|
OCTEON_CN6XXX(octeon_dev)) {
|
lio->dev_capability = NETIF_F_HIGHDMA
|
| NETIF_F_IP_CSUM
|
| NETIF_F_IPV6_CSUM
|
| NETIF_F_SG | NETIF_F_RXCSUM
|
| NETIF_F_GRO
|
| NETIF_F_TSO | NETIF_F_TSO6
|
| NETIF_F_LRO;
|
}
|
netif_set_gso_max_size(netdev, OCTNIC_GSO_MAX_SIZE);
|
|
/* Copy of transmit encapsulation capabilities:
|
* TSO, TSO6, Checksums for this device
|
*/
|
lio->enc_dev_capability = NETIF_F_IP_CSUM
|
| NETIF_F_IPV6_CSUM
|
| NETIF_F_GSO_UDP_TUNNEL
|
| NETIF_F_HW_CSUM | NETIF_F_SG
|
| NETIF_F_RXCSUM
|
| NETIF_F_TSO | NETIF_F_TSO6
|
| NETIF_F_LRO;
|
|
netdev->hw_enc_features = (lio->enc_dev_capability &
|
~NETIF_F_LRO);
|
|
netdev->udp_tunnel_nic_info = &liquidio_udp_tunnels;
|
|
lio->dev_capability |= NETIF_F_GSO_UDP_TUNNEL;
|
|
netdev->vlan_features = lio->dev_capability;
|
/* Add any unchangeable hw features */
|
lio->dev_capability |= NETIF_F_HW_VLAN_CTAG_FILTER |
|
NETIF_F_HW_VLAN_CTAG_RX |
|
NETIF_F_HW_VLAN_CTAG_TX;
|
|
netdev->features = (lio->dev_capability & ~NETIF_F_LRO);
|
|
netdev->hw_features = lio->dev_capability;
|
/*HW_VLAN_RX and HW_VLAN_FILTER is always on*/
|
netdev->hw_features = netdev->hw_features &
|
~NETIF_F_HW_VLAN_CTAG_RX;
|
|
/* MTU range: 68 - 16000 */
|
netdev->min_mtu = LIO_MIN_MTU_SIZE;
|
netdev->max_mtu = LIO_MAX_MTU_SIZE;
|
|
/* Point to the properties for octeon device to which this
|
* interface belongs.
|
*/
|
lio->oct_dev = octeon_dev;
|
lio->octprops = props;
|
lio->netdev = netdev;
|
|
dev_dbg(&octeon_dev->pci_dev->dev,
|
"if%d gmx: %d hw_addr: 0x%llx\n", i,
|
lio->linfo.gmxport, CVM_CAST64(lio->linfo.hw_addr));
|
|
for (j = 0; j < octeon_dev->sriov_info.max_vfs; j++) {
|
u8 vfmac[ETH_ALEN];
|
|
eth_random_addr(vfmac);
|
if (__liquidio_set_vf_mac(netdev, j, vfmac, false)) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"Error setting VF%d MAC address\n",
|
j);
|
goto setup_nic_dev_free;
|
}
|
}
|
|
/* 64-bit swap required on LE machines */
|
octeon_swap_8B_data(&lio->linfo.hw_addr, 1);
|
for (j = 0; j < 6; j++)
|
mac[j] = *((u8 *)(((u8 *)&lio->linfo.hw_addr) + 2 + j));
|
|
/* Copy MAC Address to OS network device structure */
|
|
ether_addr_copy(netdev->dev_addr, mac);
|
|
/* By default all interfaces on a single Octeon uses the same
|
* tx and rx queues
|
*/
|
lio->txq = lio->linfo.txpciq[0].s.q_no;
|
lio->rxq = lio->linfo.rxpciq[0].s.q_no;
|
if (liquidio_setup_io_queues(octeon_dev, i,
|
lio->linfo.num_txpciq,
|
lio->linfo.num_rxpciq)) {
|
dev_err(&octeon_dev->pci_dev->dev, "I/O queues creation failed\n");
|
goto setup_nic_dev_free;
|
}
|
|
ifstate_set(lio, LIO_IFSTATE_DROQ_OPS);
|
|
lio->tx_qsize = octeon_get_tx_qsize(octeon_dev, lio->txq);
|
lio->rx_qsize = octeon_get_rx_qsize(octeon_dev, lio->rxq);
|
|
if (lio_setup_glists(octeon_dev, lio, num_iqueues)) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"Gather list allocation failed\n");
|
goto setup_nic_dev_free;
|
}
|
|
/* Register ethtool support */
|
liquidio_set_ethtool_ops(netdev);
|
if (lio->oct_dev->chip_id == OCTEON_CN23XX_PF_VID)
|
octeon_dev->priv_flags = OCT_PRIV_FLAG_DEFAULT;
|
else
|
octeon_dev->priv_flags = 0x0;
|
|
if (netdev->features & NETIF_F_LRO)
|
liquidio_set_feature(netdev, OCTNET_CMD_LRO_ENABLE,
|
OCTNIC_LROIPV4 | OCTNIC_LROIPV6);
|
|
liquidio_set_feature(netdev, OCTNET_CMD_VLAN_FILTER_CTL,
|
OCTNET_CMD_VLAN_FILTER_ENABLE);
|
|
if ((debug != -1) && (debug & NETIF_MSG_HW))
|
liquidio_set_feature(netdev,
|
OCTNET_CMD_VERBOSE_ENABLE, 0);
|
|
if (setup_link_status_change_wq(netdev))
|
goto setup_nic_dev_free;
|
|
if ((octeon_dev->fw_info.app_cap_flags &
|
LIQUIDIO_TIME_SYNC_CAP) &&
|
setup_sync_octeon_time_wq(netdev))
|
goto setup_nic_dev_free;
|
|
if (setup_rx_oom_poll_fn(netdev))
|
goto setup_nic_dev_free;
|
|
/* Register the network device with the OS */
|
if (register_netdev(netdev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "Device registration failed\n");
|
goto setup_nic_dev_free;
|
}
|
|
dev_dbg(&octeon_dev->pci_dev->dev,
|
"Setup NIC ifidx:%d mac:%02x%02x%02x%02x%02x%02x\n",
|
i, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
|
netif_carrier_off(netdev);
|
lio->link_changes++;
|
|
ifstate_set(lio, LIO_IFSTATE_REGISTERED);
|
|
/* Sending command to firmware to enable Rx checksum offload
|
* by default at the time of setup of Liquidio driver for
|
* this device
|
*/
|
liquidio_set_rxcsum_command(netdev, OCTNET_CMD_TNL_RX_CSUM_CTL,
|
OCTNET_CMD_RXCSUM_ENABLE);
|
liquidio_set_feature(netdev, OCTNET_CMD_TNL_TX_CSUM_CTL,
|
OCTNET_CMD_TXCSUM_ENABLE);
|
|
dev_dbg(&octeon_dev->pci_dev->dev,
|
"NIC ifidx:%d Setup successful\n", i);
|
|
if (octeon_dev->subsystem_id ==
|
OCTEON_CN2350_25GB_SUBSYS_ID ||
|
octeon_dev->subsystem_id ==
|
OCTEON_CN2360_25GB_SUBSYS_ID) {
|
cur_ver = OCT_FW_VER(octeon_dev->fw_info.ver.maj,
|
octeon_dev->fw_info.ver.min,
|
octeon_dev->fw_info.ver.rev);
|
|
/* speed control unsupported in f/w older than 1.7.2 */
|
if (cur_ver < OCT_FW_VER(1, 7, 2)) {
|
dev_info(&octeon_dev->pci_dev->dev,
|
"speed setting not supported by f/w.");
|
octeon_dev->speed_setting = 25;
|
octeon_dev->no_speed_setting = 1;
|
} else {
|
liquidio_get_speed(lio);
|
}
|
|
if (octeon_dev->speed_setting == 0) {
|
octeon_dev->speed_setting = 25;
|
octeon_dev->no_speed_setting = 1;
|
}
|
} else {
|
octeon_dev->no_speed_setting = 1;
|
octeon_dev->speed_setting = 10;
|
}
|
octeon_dev->speed_boot = octeon_dev->speed_setting;
|
|
/* don't read FEC setting if unsupported by f/w (see above) */
|
if (octeon_dev->speed_boot == 25 &&
|
!octeon_dev->no_speed_setting) {
|
liquidio_get_fec(lio);
|
octeon_dev->props[lio->ifidx].fec_boot =
|
octeon_dev->props[lio->ifidx].fec;
|
}
|
}
|
|
devlink = devlink_alloc(&liquidio_devlink_ops,
|
sizeof(struct lio_devlink_priv));
|
if (!devlink) {
|
dev_err(&octeon_dev->pci_dev->dev, "devlink alloc failed\n");
|
goto setup_nic_dev_free;
|
}
|
|
lio_devlink = devlink_priv(devlink);
|
lio_devlink->oct = octeon_dev;
|
|
if (devlink_register(devlink, &octeon_dev->pci_dev->dev)) {
|
devlink_free(devlink);
|
dev_err(&octeon_dev->pci_dev->dev,
|
"devlink registration failed\n");
|
goto setup_nic_dev_free;
|
}
|
|
octeon_dev->devlink = devlink;
|
octeon_dev->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
|
|
return 0;
|
|
setup_nic_dev_free:
|
|
while (i--) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"NIC ifidx:%d Setup failed\n", i);
|
liquidio_destroy_nic_device(octeon_dev, i);
|
}
|
|
setup_nic_dev_done:
|
|
return -ENODEV;
|
}
|
|
#ifdef CONFIG_PCI_IOV
|
static int octeon_enable_sriov(struct octeon_device *oct)
|
{
|
unsigned int num_vfs_alloced = oct->sriov_info.num_vfs_alloced;
|
struct pci_dev *vfdev;
|
int err;
|
u32 u;
|
|
if (OCTEON_CN23XX_PF(oct) && num_vfs_alloced) {
|
err = pci_enable_sriov(oct->pci_dev,
|
oct->sriov_info.num_vfs_alloced);
|
if (err) {
|
dev_err(&oct->pci_dev->dev,
|
"OCTEON: Failed to enable PCI sriov: %d\n",
|
err);
|
oct->sriov_info.num_vfs_alloced = 0;
|
return err;
|
}
|
oct->sriov_info.sriov_enabled = 1;
|
|
/* init lookup table that maps DPI ring number to VF pci_dev
|
* struct pointer
|
*/
|
u = 0;
|
vfdev = pci_get_device(PCI_VENDOR_ID_CAVIUM,
|
OCTEON_CN23XX_VF_VID, NULL);
|
while (vfdev) {
|
if (vfdev->is_virtfn &&
|
(vfdev->physfn == oct->pci_dev)) {
|
oct->sriov_info.dpiring_to_vfpcidev_lut[u] =
|
vfdev;
|
u += oct->sriov_info.rings_per_vf;
|
}
|
vfdev = pci_get_device(PCI_VENDOR_ID_CAVIUM,
|
OCTEON_CN23XX_VF_VID, vfdev);
|
}
|
}
|
|
return num_vfs_alloced;
|
}
|
|
static int lio_pci_sriov_disable(struct octeon_device *oct)
|
{
|
int u;
|
|
if (pci_vfs_assigned(oct->pci_dev)) {
|
dev_err(&oct->pci_dev->dev, "VFs are still assigned to VMs.\n");
|
return -EPERM;
|
}
|
|
pci_disable_sriov(oct->pci_dev);
|
|
u = 0;
|
while (u < MAX_POSSIBLE_VFS) {
|
oct->sriov_info.dpiring_to_vfpcidev_lut[u] = NULL;
|
u += oct->sriov_info.rings_per_vf;
|
}
|
|
oct->sriov_info.num_vfs_alloced = 0;
|
dev_info(&oct->pci_dev->dev, "oct->pf_num:%d disabled VFs\n",
|
oct->pf_num);
|
|
return 0;
|
}
|
|
static int liquidio_enable_sriov(struct pci_dev *dev, int num_vfs)
|
{
|
struct octeon_device *oct = pci_get_drvdata(dev);
|
int ret = 0;
|
|
if ((num_vfs == oct->sriov_info.num_vfs_alloced) &&
|
(oct->sriov_info.sriov_enabled)) {
|
dev_info(&oct->pci_dev->dev, "oct->pf_num:%d already enabled num_vfs:%d\n",
|
oct->pf_num, num_vfs);
|
return 0;
|
}
|
|
if (!num_vfs) {
|
lio_vf_rep_destroy(oct);
|
ret = lio_pci_sriov_disable(oct);
|
} else if (num_vfs > oct->sriov_info.max_vfs) {
|
dev_err(&oct->pci_dev->dev,
|
"OCTEON: Max allowed VFs:%d user requested:%d",
|
oct->sriov_info.max_vfs, num_vfs);
|
ret = -EPERM;
|
} else {
|
oct->sriov_info.num_vfs_alloced = num_vfs;
|
ret = octeon_enable_sriov(oct);
|
dev_info(&oct->pci_dev->dev, "oct->pf_num:%d num_vfs:%d\n",
|
oct->pf_num, num_vfs);
|
ret = lio_vf_rep_create(oct);
|
if (ret)
|
dev_info(&oct->pci_dev->dev,
|
"vf representor create failed");
|
}
|
|
return ret;
|
}
|
#endif
|
|
/**
|
* liquidio_init_nic_module - initialize the NIC
|
* @oct: octeon device
|
*
|
* This initialization routine is called once the Octeon device application is
|
* up and running
|
*/
|
static int liquidio_init_nic_module(struct octeon_device *oct)
|
{
|
int i, retval = 0;
|
int num_nic_ports = CFG_GET_NUM_NIC_PORTS(octeon_get_conf(oct));
|
|
dev_dbg(&oct->pci_dev->dev, "Initializing network interfaces\n");
|
|
/* only default iq and oq were initialized
|
* initialize the rest as well
|
*/
|
/* run port_config command for each port */
|
oct->ifcount = num_nic_ports;
|
|
memset(oct->props, 0, sizeof(struct octdev_props) * num_nic_ports);
|
|
for (i = 0; i < MAX_OCTEON_LINKS; i++)
|
oct->props[i].gmxport = -1;
|
|
retval = setup_nic_devices(oct);
|
if (retval) {
|
dev_err(&oct->pci_dev->dev, "Setup NIC devices failed\n");
|
goto octnet_init_failure;
|
}
|
|
/* Call vf_rep_modinit if the firmware is switchdev capable
|
* and do it from the first liquidio function probed.
|
*/
|
if (!oct->octeon_id &&
|
oct->fw_info.app_cap_flags & LIQUIDIO_SWITCHDEV_CAP) {
|
retval = lio_vf_rep_modinit();
|
if (retval) {
|
liquidio_stop_nic_module(oct);
|
goto octnet_init_failure;
|
}
|
}
|
|
liquidio_ptp_init(oct);
|
|
dev_dbg(&oct->pci_dev->dev, "Network interfaces ready\n");
|
|
return retval;
|
|
octnet_init_failure:
|
|
oct->ifcount = 0;
|
|
return retval;
|
}
|
|
/**
|
* nic_starter - finish init
|
* @work: work struct work_struct
|
*
|
* starter callback that invokes the remaining initialization work after the NIC is up and running.
|
*/
|
static void nic_starter(struct work_struct *work)
|
{
|
struct octeon_device *oct;
|
struct cavium_wk *wk = (struct cavium_wk *)work;
|
|
oct = (struct octeon_device *)wk->ctxptr;
|
|
if (atomic_read(&oct->status) == OCT_DEV_RUNNING)
|
return;
|
|
/* If the status of the device is CORE_OK, the core
|
* application has reported its application type. Call
|
* any registered handlers now and move to the RUNNING
|
* state.
|
*/
|
if (atomic_read(&oct->status) != OCT_DEV_CORE_OK) {
|
schedule_delayed_work(&oct->nic_poll_work.work,
|
LIQUIDIO_STARTER_POLL_INTERVAL_MS);
|
return;
|
}
|
|
atomic_set(&oct->status, OCT_DEV_RUNNING);
|
|
if (oct->app_mode && oct->app_mode == CVM_DRV_NIC_APP) {
|
dev_dbg(&oct->pci_dev->dev, "Starting NIC module\n");
|
|
if (liquidio_init_nic_module(oct))
|
dev_err(&oct->pci_dev->dev, "NIC initialization failed\n");
|
else
|
handshake[oct->octeon_id].started_ok = 1;
|
} else {
|
dev_err(&oct->pci_dev->dev,
|
"Unexpected application running on NIC (%d). Check firmware.\n",
|
oct->app_mode);
|
}
|
|
complete(&handshake[oct->octeon_id].started);
|
}
|
|
static int
|
octeon_recv_vf_drv_notice(struct octeon_recv_info *recv_info, void *buf)
|
{
|
struct octeon_device *oct = (struct octeon_device *)buf;
|
struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt;
|
int i, notice, vf_idx;
|
bool cores_crashed;
|
u64 *data, vf_num;
|
|
notice = recv_pkt->rh.r.ossp;
|
data = (u64 *)(get_rbd(recv_pkt->buffer_ptr[0]) + OCT_DROQ_INFO_SIZE);
|
|
/* the first 64-bit word of data is the vf_num */
|
vf_num = data[0];
|
octeon_swap_8B_data(&vf_num, 1);
|
vf_idx = (int)vf_num - 1;
|
|
cores_crashed = READ_ONCE(oct->cores_crashed);
|
|
if (notice == VF_DRV_LOADED) {
|
if (!(oct->sriov_info.vf_drv_loaded_mask & BIT_ULL(vf_idx))) {
|
oct->sriov_info.vf_drv_loaded_mask |= BIT_ULL(vf_idx);
|
dev_info(&oct->pci_dev->dev,
|
"driver for VF%d was loaded\n", vf_idx);
|
if (!cores_crashed)
|
try_module_get(THIS_MODULE);
|
}
|
} else if (notice == VF_DRV_REMOVED) {
|
if (oct->sriov_info.vf_drv_loaded_mask & BIT_ULL(vf_idx)) {
|
oct->sriov_info.vf_drv_loaded_mask &= ~BIT_ULL(vf_idx);
|
dev_info(&oct->pci_dev->dev,
|
"driver for VF%d was removed\n", vf_idx);
|
if (!cores_crashed)
|
module_put(THIS_MODULE);
|
}
|
} else if (notice == VF_DRV_MACADDR_CHANGED) {
|
u8 *b = (u8 *)&data[1];
|
|
oct->sriov_info.vf_macaddr[vf_idx] = data[1];
|
dev_info(&oct->pci_dev->dev,
|
"VF driver changed VF%d's MAC address to %pM\n",
|
vf_idx, b + 2);
|
}
|
|
for (i = 0; i < recv_pkt->buffer_count; i++)
|
recv_buffer_free(recv_pkt->buffer_ptr[i]);
|
octeon_free_recv_info(recv_info);
|
|
return 0;
|
}
|
|
/**
|
* octeon_device_init - Device initialization for each Octeon device that is probed
|
* @octeon_dev: octeon device
|
*/
|
static int octeon_device_init(struct octeon_device *octeon_dev)
|
{
|
int j, ret;
|
char bootcmd[] = "\n";
|
char *dbg_enb = NULL;
|
enum lio_fw_state fw_state;
|
struct octeon_device_priv *oct_priv =
|
(struct octeon_device_priv *)octeon_dev->priv;
|
atomic_set(&octeon_dev->status, OCT_DEV_BEGIN_STATE);
|
|
/* Enable access to the octeon device and make its DMA capability
|
* known to the OS.
|
*/
|
if (octeon_pci_os_setup(octeon_dev))
|
return 1;
|
|
atomic_set(&octeon_dev->status, OCT_DEV_PCI_ENABLE_DONE);
|
|
/* Identify the Octeon type and map the BAR address space. */
|
if (octeon_chip_specific_setup(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "Chip specific setup failed\n");
|
return 1;
|
}
|
|
atomic_set(&octeon_dev->status, OCT_DEV_PCI_MAP_DONE);
|
|
/* Only add a reference after setting status 'OCT_DEV_PCI_MAP_DONE',
|
* since that is what is required for the reference to be removed
|
* during de-initialization (see 'octeon_destroy_resources').
|
*/
|
octeon_register_device(octeon_dev, octeon_dev->pci_dev->bus->number,
|
PCI_SLOT(octeon_dev->pci_dev->devfn),
|
PCI_FUNC(octeon_dev->pci_dev->devfn),
|
true);
|
|
octeon_dev->app_mode = CVM_DRV_INVALID_APP;
|
|
/* CN23XX supports preloaded firmware if the following is true:
|
*
|
* The adapter indicates that firmware is currently running AND
|
* 'fw_type' is 'auto'.
|
*
|
* (default state is NEEDS_TO_BE_LOADED, override it if appropriate).
|
*/
|
if (OCTEON_CN23XX_PF(octeon_dev) &&
|
cn23xx_fw_loaded(octeon_dev) && fw_type_is_auto()) {
|
atomic_cmpxchg(octeon_dev->adapter_fw_state,
|
FW_NEEDS_TO_BE_LOADED, FW_IS_PRELOADED);
|
}
|
|
/* If loading firmware, only first device of adapter needs to do so. */
|
fw_state = atomic_cmpxchg(octeon_dev->adapter_fw_state,
|
FW_NEEDS_TO_BE_LOADED,
|
FW_IS_BEING_LOADED);
|
|
/* Here, [local variable] 'fw_state' is set to one of:
|
*
|
* FW_IS_PRELOADED: No firmware is to be loaded (see above)
|
* FW_NEEDS_TO_BE_LOADED: The driver's first instance will load
|
* firmware to the adapter.
|
* FW_IS_BEING_LOADED: The driver's second instance will not load
|
* firmware to the adapter.
|
*/
|
|
/* Prior to f/w load, perform a soft reset of the Octeon device;
|
* if error resetting, return w/error.
|
*/
|
if (fw_state == FW_NEEDS_TO_BE_LOADED)
|
if (octeon_dev->fn_list.soft_reset(octeon_dev))
|
return 1;
|
|
/* Initialize the dispatch mechanism used to push packets arriving on
|
* Octeon Output queues.
|
*/
|
if (octeon_init_dispatch_list(octeon_dev))
|
return 1;
|
|
octeon_register_dispatch_fn(octeon_dev, OPCODE_NIC,
|
OPCODE_NIC_CORE_DRV_ACTIVE,
|
octeon_core_drv_init,
|
octeon_dev);
|
|
octeon_register_dispatch_fn(octeon_dev, OPCODE_NIC,
|
OPCODE_NIC_VF_DRV_NOTICE,
|
octeon_recv_vf_drv_notice, octeon_dev);
|
INIT_DELAYED_WORK(&octeon_dev->nic_poll_work.work, nic_starter);
|
octeon_dev->nic_poll_work.ctxptr = (void *)octeon_dev;
|
schedule_delayed_work(&octeon_dev->nic_poll_work.work,
|
LIQUIDIO_STARTER_POLL_INTERVAL_MS);
|
|
atomic_set(&octeon_dev->status, OCT_DEV_DISPATCH_INIT_DONE);
|
|
if (octeon_set_io_queues_off(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "setting io queues off failed\n");
|
return 1;
|
}
|
|
if (OCTEON_CN23XX_PF(octeon_dev)) {
|
ret = octeon_dev->fn_list.setup_device_regs(octeon_dev);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev, "OCTEON: Failed to configure device registers\n");
|
return ret;
|
}
|
}
|
|
/* Initialize soft command buffer pool
|
*/
|
if (octeon_setup_sc_buffer_pool(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "sc buffer pool allocation failed\n");
|
return 1;
|
}
|
atomic_set(&octeon_dev->status, OCT_DEV_SC_BUFF_POOL_INIT_DONE);
|
|
/* Setup the data structures that manage this Octeon's Input queues. */
|
if (octeon_setup_instr_queues(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"instruction queue initialization failed\n");
|
return 1;
|
}
|
atomic_set(&octeon_dev->status, OCT_DEV_INSTR_QUEUE_INIT_DONE);
|
|
/* Initialize lists to manage the requests of different types that
|
* arrive from user & kernel applications for this octeon device.
|
*/
|
if (octeon_setup_response_list(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "Response list allocation failed\n");
|
return 1;
|
}
|
atomic_set(&octeon_dev->status, OCT_DEV_RESP_LIST_INIT_DONE);
|
|
if (octeon_setup_output_queues(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "Output queue initialization failed\n");
|
return 1;
|
}
|
|
atomic_set(&octeon_dev->status, OCT_DEV_DROQ_INIT_DONE);
|
|
if (OCTEON_CN23XX_PF(octeon_dev)) {
|
if (octeon_dev->fn_list.setup_mbox(octeon_dev)) {
|
dev_err(&octeon_dev->pci_dev->dev, "OCTEON: Mailbox setup failed\n");
|
return 1;
|
}
|
atomic_set(&octeon_dev->status, OCT_DEV_MBOX_SETUP_DONE);
|
|
if (octeon_allocate_ioq_vector
|
(octeon_dev,
|
octeon_dev->sriov_info.num_pf_rings)) {
|
dev_err(&octeon_dev->pci_dev->dev, "OCTEON: ioq vector allocation failed\n");
|
return 1;
|
}
|
atomic_set(&octeon_dev->status, OCT_DEV_MSIX_ALLOC_VECTOR_DONE);
|
|
} else {
|
/* The input and output queue registers were setup earlier (the
|
* queues were not enabled). Any additional registers
|
* that need to be programmed should be done now.
|
*/
|
ret = octeon_dev->fn_list.setup_device_regs(octeon_dev);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"Failed to configure device registers\n");
|
return ret;
|
}
|
}
|
|
/* Initialize the tasklet that handles output queue packet processing.*/
|
dev_dbg(&octeon_dev->pci_dev->dev, "Initializing droq tasklet\n");
|
tasklet_setup(&oct_priv->droq_tasklet, octeon_droq_bh);
|
|
/* Setup the interrupt handler and record the INT SUM register address
|
*/
|
if (octeon_setup_interrupt(octeon_dev,
|
octeon_dev->sriov_info.num_pf_rings))
|
return 1;
|
|
/* Enable Octeon device interrupts */
|
octeon_dev->fn_list.enable_interrupt(octeon_dev, OCTEON_ALL_INTR);
|
|
atomic_set(&octeon_dev->status, OCT_DEV_INTR_SET_DONE);
|
|
/* Send Credit for Octeon Output queues. Credits are always sent BEFORE
|
* the output queue is enabled.
|
* This ensures that we'll receive the f/w CORE DRV_ACTIVE message in
|
* case we've configured CN23XX_SLI_GBL_CONTROL[NOPTR_D] = 0.
|
* Otherwise, it is possible that the DRV_ACTIVE message will be sent
|
* before any credits have been issued, causing the ring to be reset
|
* (and the f/w appear to never have started).
|
*/
|
for (j = 0; j < octeon_dev->num_oqs; j++)
|
writel(octeon_dev->droq[j]->max_count,
|
octeon_dev->droq[j]->pkts_credit_reg);
|
|
/* Enable the input and output queues for this Octeon device */
|
ret = octeon_dev->fn_list.enable_io_queues(octeon_dev);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev, "Failed to enable input/output queues");
|
return ret;
|
}
|
|
atomic_set(&octeon_dev->status, OCT_DEV_IO_QUEUES_DONE);
|
|
if (fw_state == FW_NEEDS_TO_BE_LOADED) {
|
dev_dbg(&octeon_dev->pci_dev->dev, "Waiting for DDR initialization...\n");
|
if (!ddr_timeout) {
|
dev_info(&octeon_dev->pci_dev->dev,
|
"WAITING. Set ddr_timeout to non-zero value to proceed with initialization.\n");
|
}
|
|
schedule_timeout_uninterruptible(HZ * LIO_RESET_SECS);
|
|
/* Wait for the octeon to initialize DDR after the soft-reset.*/
|
while (!ddr_timeout) {
|
set_current_state(TASK_INTERRUPTIBLE);
|
if (schedule_timeout(HZ / 10)) {
|
/* user probably pressed Control-C */
|
return 1;
|
}
|
}
|
ret = octeon_wait_for_ddr_init(octeon_dev, &ddr_timeout);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev,
|
"DDR not initialized. Please confirm that board is configured to boot from Flash, ret: %d\n",
|
ret);
|
return 1;
|
}
|
|
if (octeon_wait_for_bootloader(octeon_dev, 1000)) {
|
dev_err(&octeon_dev->pci_dev->dev, "Board not responding\n");
|
return 1;
|
}
|
|
/* Divert uboot to take commands from host instead. */
|
ret = octeon_console_send_cmd(octeon_dev, bootcmd, 50);
|
|
dev_dbg(&octeon_dev->pci_dev->dev, "Initializing consoles\n");
|
ret = octeon_init_consoles(octeon_dev);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev, "Could not access board consoles\n");
|
return 1;
|
}
|
/* If console debug enabled, specify empty string to use default
|
* enablement ELSE specify NULL string for 'disabled'.
|
*/
|
dbg_enb = octeon_console_debug_enabled(0) ? "" : NULL;
|
ret = octeon_add_console(octeon_dev, 0, dbg_enb);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev, "Could not access board console\n");
|
return 1;
|
} else if (octeon_console_debug_enabled(0)) {
|
/* If console was added AND we're logging console output
|
* then set our console print function.
|
*/
|
octeon_dev->console[0].print = octeon_dbg_console_print;
|
}
|
|
atomic_set(&octeon_dev->status, OCT_DEV_CONSOLE_INIT_DONE);
|
|
dev_dbg(&octeon_dev->pci_dev->dev, "Loading firmware\n");
|
ret = load_firmware(octeon_dev);
|
if (ret) {
|
dev_err(&octeon_dev->pci_dev->dev, "Could not load firmware to board\n");
|
return 1;
|
}
|
|
atomic_set(octeon_dev->adapter_fw_state, FW_HAS_BEEN_LOADED);
|
}
|
|
handshake[octeon_dev->octeon_id].init_ok = 1;
|
complete(&handshake[octeon_dev->octeon_id].init);
|
|
atomic_set(&octeon_dev->status, OCT_DEV_HOST_OK);
|
oct_priv->dev = octeon_dev;
|
|
return 0;
|
}
|
|
/**
|
* octeon_dbg_console_print - Debug console print function
|
* @oct: octeon device
|
* @console_num: console number
|
* @prefix: first portion of line to display
|
* @suffix: second portion of line to display
|
*
|
* The OCTEON debug console outputs entire lines (excluding '\n').
|
* Normally, the line will be passed in the 'prefix' parameter.
|
* However, due to buffering, it is possible for a line to be split into two
|
* parts, in which case they will be passed as the 'prefix' parameter and
|
* 'suffix' parameter.
|
*/
|
static int octeon_dbg_console_print(struct octeon_device *oct, u32 console_num,
|
char *prefix, char *suffix)
|
{
|
if (prefix && suffix)
|
dev_info(&oct->pci_dev->dev, "%u: %s%s\n", console_num, prefix,
|
suffix);
|
else if (prefix)
|
dev_info(&oct->pci_dev->dev, "%u: %s\n", console_num, prefix);
|
else if (suffix)
|
dev_info(&oct->pci_dev->dev, "%u: %s\n", console_num, suffix);
|
|
return 0;
|
}
|
|
/**
|
* liquidio_exit - Exits the module
|
*/
|
static void __exit liquidio_exit(void)
|
{
|
liquidio_deinit_pci();
|
|
pr_info("LiquidIO network module is now unloaded\n");
|
}
|
|
module_init(liquidio_init);
|
module_exit(liquidio_exit);
|
