3749 lines
103 KiB
C
3749 lines
103 KiB
C
/*
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* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/io-mapping.h>
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#include <linux/delay.h>
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#include <linux/kmod.h>
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#include <linux/mlx4/device.h>
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#include <linux/mlx4/doorbell.h>
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#include "mlx4.h"
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#include "fw.h"
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#include "icm.h"
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MODULE_AUTHOR("Roland Dreier");
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MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_VERSION(DRV_VERSION);
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struct workqueue_struct *mlx4_wq;
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#ifdef CONFIG_MLX4_DEBUG
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int mlx4_debug_level = 0;
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module_param_named(debug_level, mlx4_debug_level, int, 0644);
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MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
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#endif /* CONFIG_MLX4_DEBUG */
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#ifdef CONFIG_PCI_MSI
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static int msi_x = 1;
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module_param(msi_x, int, 0444);
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MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
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#else /* CONFIG_PCI_MSI */
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#define msi_x (0)
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#endif /* CONFIG_PCI_MSI */
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static uint8_t num_vfs[3] = {0, 0, 0};
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static int num_vfs_argc;
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module_param_array(num_vfs, byte , &num_vfs_argc, 0444);
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MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0\n"
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"num_vfs=port1,port2,port1+2");
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static uint8_t probe_vf[3] = {0, 0, 0};
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static int probe_vfs_argc;
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module_param_array(probe_vf, byte, &probe_vfs_argc, 0444);
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MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)\n"
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"probe_vf=port1,port2,port1+2");
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int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
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module_param_named(log_num_mgm_entry_size,
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mlx4_log_num_mgm_entry_size, int, 0444);
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MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
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" of qp per mcg, for example:"
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" 10 gives 248.range: 7 <="
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" log_num_mgm_entry_size <= 12."
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" To activate device managed"
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" flow steering when available, set to -1");
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static bool enable_64b_cqe_eqe = true;
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module_param(enable_64b_cqe_eqe, bool, 0444);
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MODULE_PARM_DESC(enable_64b_cqe_eqe,
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"Enable 64 byte CQEs/EQEs when the FW supports this (default: True)");
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#define PF_CONTEXT_BEHAVIOUR_MASK (MLX4_FUNC_CAP_64B_EQE_CQE | \
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MLX4_FUNC_CAP_EQE_CQE_STRIDE | \
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MLX4_FUNC_CAP_DMFS_A0_STATIC)
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#define RESET_PERSIST_MASK_FLAGS (MLX4_FLAG_SRIOV)
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static char mlx4_version[] =
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DRV_NAME ": Mellanox ConnectX core driver v"
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DRV_VERSION " (" DRV_RELDATE ")\n";
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static struct mlx4_profile default_profile = {
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.num_qp = 1 << 18,
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.num_srq = 1 << 16,
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.rdmarc_per_qp = 1 << 4,
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.num_cq = 1 << 16,
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.num_mcg = 1 << 13,
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.num_mpt = 1 << 19,
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.num_mtt = 1 << 20, /* It is really num mtt segements */
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};
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static struct mlx4_profile low_mem_profile = {
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.num_qp = 1 << 17,
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.num_srq = 1 << 6,
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.rdmarc_per_qp = 1 << 4,
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.num_cq = 1 << 8,
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.num_mcg = 1 << 8,
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.num_mpt = 1 << 9,
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.num_mtt = 1 << 7,
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};
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static int log_num_mac = 7;
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module_param_named(log_num_mac, log_num_mac, int, 0444);
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MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
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static int log_num_vlan;
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module_param_named(log_num_vlan, log_num_vlan, int, 0444);
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MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
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/* Log2 max number of VLANs per ETH port (0-7) */
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#define MLX4_LOG_NUM_VLANS 7
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#define MLX4_MIN_LOG_NUM_VLANS 0
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#define MLX4_MIN_LOG_NUM_MAC 1
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static bool use_prio;
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module_param_named(use_prio, use_prio, bool, 0444);
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MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports (deprecated)");
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int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
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module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
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MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
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static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
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static int arr_argc = 2;
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module_param_array(port_type_array, int, &arr_argc, 0444);
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MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
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"1 for IB, 2 for Ethernet");
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struct mlx4_port_config {
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struct list_head list;
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enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
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struct pci_dev *pdev;
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};
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static atomic_t pf_loading = ATOMIC_INIT(0);
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int mlx4_check_port_params(struct mlx4_dev *dev,
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enum mlx4_port_type *port_type)
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{
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int i;
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if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
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for (i = 0; i < dev->caps.num_ports - 1; i++) {
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if (port_type[i] != port_type[i + 1]) {
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mlx4_err(dev, "Only same port types supported on this HCA, aborting\n");
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return -EINVAL;
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}
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}
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}
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for (i = 0; i < dev->caps.num_ports; i++) {
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if (!(port_type[i] & dev->caps.supported_type[i+1])) {
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mlx4_err(dev, "Requested port type for port %d is not supported on this HCA\n",
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i + 1);
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return -EINVAL;
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}
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}
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return 0;
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}
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static void mlx4_set_port_mask(struct mlx4_dev *dev)
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{
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int i;
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for (i = 1; i <= dev->caps.num_ports; ++i)
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dev->caps.port_mask[i] = dev->caps.port_type[i];
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}
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enum {
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MLX4_QUERY_FUNC_NUM_SYS_EQS = 1 << 0,
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};
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static int mlx4_query_func(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
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{
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int err = 0;
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struct mlx4_func func;
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if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
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err = mlx4_QUERY_FUNC(dev, &func, 0);
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if (err) {
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mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
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return err;
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}
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dev_cap->max_eqs = func.max_eq;
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dev_cap->reserved_eqs = func.rsvd_eqs;
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dev_cap->reserved_uars = func.rsvd_uars;
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err |= MLX4_QUERY_FUNC_NUM_SYS_EQS;
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}
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return err;
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}
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static void mlx4_enable_cqe_eqe_stride(struct mlx4_dev *dev)
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{
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struct mlx4_caps *dev_cap = &dev->caps;
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/* FW not supporting or cancelled by user */
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if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) ||
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!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE))
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return;
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/* Must have 64B CQE_EQE enabled by FW to use bigger stride
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* When FW has NCSI it may decide not to report 64B CQE/EQEs
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*/
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if (!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_EQE) ||
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!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_CQE)) {
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dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
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dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
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return;
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}
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if (cache_line_size() == 128 || cache_line_size() == 256) {
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mlx4_dbg(dev, "Enabling CQE stride cacheLine supported\n");
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/* Changing the real data inside CQE size to 32B */
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dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
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dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
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if (mlx4_is_master(dev))
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dev_cap->function_caps |= MLX4_FUNC_CAP_EQE_CQE_STRIDE;
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} else {
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if (cache_line_size() != 32 && cache_line_size() != 64)
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mlx4_dbg(dev, "Disabling CQE stride, cacheLine size unsupported\n");
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dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
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dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
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}
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}
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static int _mlx4_dev_port(struct mlx4_dev *dev, int port,
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struct mlx4_port_cap *port_cap)
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{
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dev->caps.vl_cap[port] = port_cap->max_vl;
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dev->caps.ib_mtu_cap[port] = port_cap->ib_mtu;
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dev->phys_caps.gid_phys_table_len[port] = port_cap->max_gids;
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dev->phys_caps.pkey_phys_table_len[port] = port_cap->max_pkeys;
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/* set gid and pkey table operating lengths by default
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* to non-sriov values
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*/
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dev->caps.gid_table_len[port] = port_cap->max_gids;
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dev->caps.pkey_table_len[port] = port_cap->max_pkeys;
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dev->caps.port_width_cap[port] = port_cap->max_port_width;
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dev->caps.eth_mtu_cap[port] = port_cap->eth_mtu;
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dev->caps.def_mac[port] = port_cap->def_mac;
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dev->caps.supported_type[port] = port_cap->supported_port_types;
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dev->caps.suggested_type[port] = port_cap->suggested_type;
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dev->caps.default_sense[port] = port_cap->default_sense;
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dev->caps.trans_type[port] = port_cap->trans_type;
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dev->caps.vendor_oui[port] = port_cap->vendor_oui;
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dev->caps.wavelength[port] = port_cap->wavelength;
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dev->caps.trans_code[port] = port_cap->trans_code;
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return 0;
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}
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static int mlx4_dev_port(struct mlx4_dev *dev, int port,
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struct mlx4_port_cap *port_cap)
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{
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int err = 0;
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err = mlx4_QUERY_PORT(dev, port, port_cap);
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if (err)
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mlx4_err(dev, "QUERY_PORT command failed.\n");
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return err;
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}
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static inline void mlx4_enable_ignore_fcs(struct mlx4_dev *dev)
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{
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if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS))
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return;
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if (mlx4_is_mfunc(dev)) {
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mlx4_dbg(dev, "SRIOV mode - Disabling Ignore FCS");
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dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
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return;
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}
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if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)) {
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mlx4_dbg(dev,
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"Keep FCS is not supported - Disabling Ignore FCS");
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dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
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return;
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}
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}
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#define MLX4_A0_STEERING_TABLE_SIZE 256
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static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
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{
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int err;
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int i;
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err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
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if (err) {
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mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
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return err;
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}
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mlx4_dev_cap_dump(dev, dev_cap);
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if (dev_cap->min_page_sz > PAGE_SIZE) {
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mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
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dev_cap->min_page_sz, PAGE_SIZE);
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return -ENODEV;
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}
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if (dev_cap->num_ports > MLX4_MAX_PORTS) {
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mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
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dev_cap->num_ports, MLX4_MAX_PORTS);
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return -ENODEV;
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}
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if (dev_cap->uar_size > pci_resource_len(dev->persist->pdev, 2)) {
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mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
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dev_cap->uar_size,
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(unsigned long long)
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pci_resource_len(dev->persist->pdev, 2));
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return -ENODEV;
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}
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dev->caps.num_ports = dev_cap->num_ports;
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dev->caps.num_sys_eqs = dev_cap->num_sys_eqs;
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dev->phys_caps.num_phys_eqs = dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS ?
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dev->caps.num_sys_eqs :
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MLX4_MAX_EQ_NUM;
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for (i = 1; i <= dev->caps.num_ports; ++i) {
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err = _mlx4_dev_port(dev, i, dev_cap->port_cap + i);
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if (err) {
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mlx4_err(dev, "QUERY_PORT command failed, aborting\n");
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return err;
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}
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}
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dev->caps.uar_page_size = PAGE_SIZE;
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dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
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dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
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dev->caps.bf_reg_size = dev_cap->bf_reg_size;
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dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
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dev->caps.max_sq_sg = dev_cap->max_sq_sg;
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dev->caps.max_rq_sg = dev_cap->max_rq_sg;
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dev->caps.max_wqes = dev_cap->max_qp_sz;
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dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
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dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
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dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
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dev->caps.reserved_srqs = dev_cap->reserved_srqs;
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dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
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dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
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/*
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* Subtract 1 from the limit because we need to allocate a
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* spare CQE so the HCA HW can tell the difference between an
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* empty CQ and a full CQ.
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*/
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dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
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dev->caps.reserved_cqs = dev_cap->reserved_cqs;
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dev->caps.reserved_eqs = dev_cap->reserved_eqs;
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dev->caps.reserved_mtts = dev_cap->reserved_mtts;
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dev->caps.reserved_mrws = dev_cap->reserved_mrws;
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/* The first 128 UARs are used for EQ doorbells */
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dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
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dev->caps.reserved_pds = dev_cap->reserved_pds;
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dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
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dev_cap->reserved_xrcds : 0;
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dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
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dev_cap->max_xrcds : 0;
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dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
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dev->caps.max_msg_sz = dev_cap->max_msg_sz;
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dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
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dev->caps.flags = dev_cap->flags;
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dev->caps.flags2 = dev_cap->flags2;
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dev->caps.bmme_flags = dev_cap->bmme_flags;
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dev->caps.reserved_lkey = dev_cap->reserved_lkey;
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dev->caps.stat_rate_support = dev_cap->stat_rate_support;
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dev->caps.max_gso_sz = dev_cap->max_gso_sz;
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dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz;
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/* Sense port always allowed on supported devices for ConnectX-1 and -2 */
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if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
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dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
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/* Don't do sense port on multifunction devices (for now at least) */
|
|
if (mlx4_is_mfunc(dev))
|
|
dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
|
|
|
|
if (mlx4_low_memory_profile()) {
|
|
dev->caps.log_num_macs = MLX4_MIN_LOG_NUM_MAC;
|
|
dev->caps.log_num_vlans = MLX4_MIN_LOG_NUM_VLANS;
|
|
} else {
|
|
dev->caps.log_num_macs = log_num_mac;
|
|
dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
|
|
}
|
|
|
|
for (i = 1; i <= dev->caps.num_ports; ++i) {
|
|
dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
|
|
if (dev->caps.supported_type[i]) {
|
|
/* if only ETH is supported - assign ETH */
|
|
if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
|
|
dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
|
|
/* if only IB is supported, assign IB */
|
|
else if (dev->caps.supported_type[i] ==
|
|
MLX4_PORT_TYPE_IB)
|
|
dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
|
|
else {
|
|
/* if IB and ETH are supported, we set the port
|
|
* type according to user selection of port type;
|
|
* if user selected none, take the FW hint */
|
|
if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
|
|
dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
|
|
MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
|
|
else
|
|
dev->caps.port_type[i] = port_type_array[i - 1];
|
|
}
|
|
}
|
|
/*
|
|
* Link sensing is allowed on the port if 3 conditions are true:
|
|
* 1. Both protocols are supported on the port.
|
|
* 2. Different types are supported on the port
|
|
* 3. FW declared that it supports link sensing
|
|
*/
|
|
mlx4_priv(dev)->sense.sense_allowed[i] =
|
|
((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
|
|
(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
|
|
(dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
|
|
|
|
/*
|
|
* If "default_sense" bit is set, we move the port to "AUTO" mode
|
|
* and perform sense_port FW command to try and set the correct
|
|
* port type from beginning
|
|
*/
|
|
if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
|
|
enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
|
|
dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
|
|
mlx4_SENSE_PORT(dev, i, &sensed_port);
|
|
if (sensed_port != MLX4_PORT_TYPE_NONE)
|
|
dev->caps.port_type[i] = sensed_port;
|
|
} else {
|
|
dev->caps.possible_type[i] = dev->caps.port_type[i];
|
|
}
|
|
|
|
if (dev->caps.log_num_macs > dev_cap->port_cap[i].log_max_macs) {
|
|
dev->caps.log_num_macs = dev_cap->port_cap[i].log_max_macs;
|
|
mlx4_warn(dev, "Requested number of MACs is too much for port %d, reducing to %d\n",
|
|
i, 1 << dev->caps.log_num_macs);
|
|
}
|
|
if (dev->caps.log_num_vlans > dev_cap->port_cap[i].log_max_vlans) {
|
|
dev->caps.log_num_vlans = dev_cap->port_cap[i].log_max_vlans;
|
|
mlx4_warn(dev, "Requested number of VLANs is too much for port %d, reducing to %d\n",
|
|
i, 1 << dev->caps.log_num_vlans);
|
|
}
|
|
}
|
|
|
|
dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
|
|
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
|
|
(1 << dev->caps.log_num_macs) *
|
|
(1 << dev->caps.log_num_vlans) *
|
|
dev->caps.num_ports;
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
|
|
|
|
if (dev_cap->dmfs_high_rate_qpn_base > 0 &&
|
|
dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)
|
|
dev->caps.dmfs_high_rate_qpn_base = dev_cap->dmfs_high_rate_qpn_base;
|
|
else
|
|
dev->caps.dmfs_high_rate_qpn_base =
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
|
|
|
|
if (dev_cap->dmfs_high_rate_qpn_range > 0 &&
|
|
dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) {
|
|
dev->caps.dmfs_high_rate_qpn_range = dev_cap->dmfs_high_rate_qpn_range;
|
|
dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DEFAULT;
|
|
dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_FS_A0;
|
|
} else {
|
|
dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_NOT_SUPPORTED;
|
|
dev->caps.dmfs_high_rate_qpn_base =
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
|
|
dev->caps.dmfs_high_rate_qpn_range = MLX4_A0_STEERING_TABLE_SIZE;
|
|
}
|
|
|
|
dev->caps.rl_caps = dev_cap->rl_caps;
|
|
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_RSS_RAW_ETH] =
|
|
dev->caps.dmfs_high_rate_qpn_range;
|
|
|
|
dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
|
|
|
|
dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
|
|
|
|
if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) {
|
|
if (dev_cap->flags &
|
|
(MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
|
|
mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
|
|
dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
|
|
dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
|
|
}
|
|
|
|
if (dev_cap->flags2 &
|
|
(MLX4_DEV_CAP_FLAG2_CQE_STRIDE |
|
|
MLX4_DEV_CAP_FLAG2_EQE_STRIDE)) {
|
|
mlx4_warn(dev, "Disabling EQE/CQE stride per user request\n");
|
|
dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
|
|
dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
|
|
}
|
|
}
|
|
|
|
if ((dev->caps.flags &
|
|
(MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
|
|
mlx4_is_master(dev))
|
|
dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
|
|
|
|
if (!mlx4_is_slave(dev)) {
|
|
mlx4_enable_cqe_eqe_stride(dev);
|
|
dev->caps.alloc_res_qp_mask =
|
|
(dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) |
|
|
MLX4_RESERVE_A0_QP;
|
|
|
|
if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) &&
|
|
dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
|
|
mlx4_warn(dev, "Old device ETS support detected\n");
|
|
mlx4_warn(dev, "Consider upgrading device FW.\n");
|
|
dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
|
|
}
|
|
|
|
} else {
|
|
dev->caps.alloc_res_qp_mask = 0;
|
|
}
|
|
|
|
mlx4_enable_ignore_fcs(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx4_get_pcie_dev_link_caps(struct mlx4_dev *dev,
|
|
enum pci_bus_speed *speed,
|
|
enum pcie_link_width *width)
|
|
{
|
|
u32 lnkcap1, lnkcap2;
|
|
int err1, err2;
|
|
|
|
#define PCIE_MLW_CAP_SHIFT 4 /* start of MLW mask in link capabilities */
|
|
|
|
*speed = PCI_SPEED_UNKNOWN;
|
|
*width = PCIE_LNK_WIDTH_UNKNOWN;
|
|
|
|
err1 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP,
|
|
&lnkcap1);
|
|
err2 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP2,
|
|
&lnkcap2);
|
|
if (!err2 && lnkcap2) { /* PCIe r3.0-compliant */
|
|
if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
|
|
*speed = PCIE_SPEED_8_0GT;
|
|
else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
|
|
*speed = PCIE_SPEED_5_0GT;
|
|
else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
|
|
*speed = PCIE_SPEED_2_5GT;
|
|
}
|
|
if (!err1) {
|
|
*width = (lnkcap1 & PCI_EXP_LNKCAP_MLW) >> PCIE_MLW_CAP_SHIFT;
|
|
if (!lnkcap2) { /* pre-r3.0 */
|
|
if (lnkcap1 & PCI_EXP_LNKCAP_SLS_5_0GB)
|
|
*speed = PCIE_SPEED_5_0GT;
|
|
else if (lnkcap1 & PCI_EXP_LNKCAP_SLS_2_5GB)
|
|
*speed = PCIE_SPEED_2_5GT;
|
|
}
|
|
}
|
|
|
|
if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN) {
|
|
return err1 ? err1 :
|
|
err2 ? err2 : -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void mlx4_check_pcie_caps(struct mlx4_dev *dev)
|
|
{
|
|
enum pcie_link_width width, width_cap;
|
|
enum pci_bus_speed speed, speed_cap;
|
|
int err;
|
|
|
|
#define PCIE_SPEED_STR(speed) \
|
|
(speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : \
|
|
speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : \
|
|
speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : \
|
|
"Unknown")
|
|
|
|
err = mlx4_get_pcie_dev_link_caps(dev, &speed_cap, &width_cap);
|
|
if (err) {
|
|
mlx4_warn(dev,
|
|
"Unable to determine PCIe device BW capabilities\n");
|
|
return;
|
|
}
|
|
|
|
err = pcie_get_minimum_link(dev->persist->pdev, &speed, &width);
|
|
if (err || speed == PCI_SPEED_UNKNOWN ||
|
|
width == PCIE_LNK_WIDTH_UNKNOWN) {
|
|
mlx4_warn(dev,
|
|
"Unable to determine PCI device chain minimum BW\n");
|
|
return;
|
|
}
|
|
|
|
if (width != width_cap || speed != speed_cap)
|
|
mlx4_warn(dev,
|
|
"PCIe BW is different than device's capability\n");
|
|
|
|
mlx4_info(dev, "PCIe link speed is %s, device supports %s\n",
|
|
PCIE_SPEED_STR(speed), PCIE_SPEED_STR(speed_cap));
|
|
mlx4_info(dev, "PCIe link width is x%d, device supports x%d\n",
|
|
width, width_cap);
|
|
return;
|
|
}
|
|
|
|
/*The function checks if there are live vf, return the num of them*/
|
|
static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
struct mlx4_slave_state *s_state;
|
|
int i;
|
|
int ret = 0;
|
|
|
|
for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
|
|
s_state = &priv->mfunc.master.slave_state[i];
|
|
if (s_state->active && s_state->last_cmd !=
|
|
MLX4_COMM_CMD_RESET) {
|
|
mlx4_warn(dev, "%s: slave: %d is still active\n",
|
|
__func__, i);
|
|
ret++;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
|
|
{
|
|
u32 qk = MLX4_RESERVED_QKEY_BASE;
|
|
|
|
if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
|
|
qpn < dev->phys_caps.base_proxy_sqpn)
|
|
return -EINVAL;
|
|
|
|
if (qpn >= dev->phys_caps.base_tunnel_sqpn)
|
|
/* tunnel qp */
|
|
qk += qpn - dev->phys_caps.base_tunnel_sqpn;
|
|
else
|
|
qk += qpn - dev->phys_caps.base_proxy_sqpn;
|
|
*qkey = qk;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlx4_get_parav_qkey);
|
|
|
|
void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
|
|
{
|
|
struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
|
|
|
|
if (!mlx4_is_master(dev))
|
|
return;
|
|
|
|
priv->virt2phys_pkey[slave][port - 1][i] = val;
|
|
}
|
|
EXPORT_SYMBOL(mlx4_sync_pkey_table);
|
|
|
|
void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
|
|
{
|
|
struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
|
|
|
|
if (!mlx4_is_master(dev))
|
|
return;
|
|
|
|
priv->slave_node_guids[slave] = guid;
|
|
}
|
|
EXPORT_SYMBOL(mlx4_put_slave_node_guid);
|
|
|
|
__be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
|
|
{
|
|
struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
|
|
|
|
if (!mlx4_is_master(dev))
|
|
return 0;
|
|
|
|
return priv->slave_node_guids[slave];
|
|
}
|
|
EXPORT_SYMBOL(mlx4_get_slave_node_guid);
|
|
|
|
int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
struct mlx4_slave_state *s_slave;
|
|
|
|
if (!mlx4_is_master(dev))
|
|
return 0;
|
|
|
|
s_slave = &priv->mfunc.master.slave_state[slave];
|
|
return !!s_slave->active;
|
|
}
|
|
EXPORT_SYMBOL(mlx4_is_slave_active);
|
|
|
|
static void slave_adjust_steering_mode(struct mlx4_dev *dev,
|
|
struct mlx4_dev_cap *dev_cap,
|
|
struct mlx4_init_hca_param *hca_param)
|
|
{
|
|
dev->caps.steering_mode = hca_param->steering_mode;
|
|
if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
|
|
dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
|
|
dev->caps.fs_log_max_ucast_qp_range_size =
|
|
dev_cap->fs_log_max_ucast_qp_range_size;
|
|
} else
|
|
dev->caps.num_qp_per_mgm =
|
|
4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
|
|
|
|
mlx4_dbg(dev, "Steering mode is: %s\n",
|
|
mlx4_steering_mode_str(dev->caps.steering_mode));
|
|
}
|
|
|
|
static int mlx4_slave_cap(struct mlx4_dev *dev)
|
|
{
|
|
int err;
|
|
u32 page_size;
|
|
struct mlx4_dev_cap dev_cap;
|
|
struct mlx4_func_cap func_cap;
|
|
struct mlx4_init_hca_param hca_param;
|
|
u8 i;
|
|
|
|
memset(&hca_param, 0, sizeof(hca_param));
|
|
err = mlx4_QUERY_HCA(dev, &hca_param);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_HCA command failed, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
/* fail if the hca has an unknown global capability
|
|
* at this time global_caps should be always zeroed
|
|
*/
|
|
if (hca_param.global_caps) {
|
|
mlx4_err(dev, "Unknown hca global capabilities\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
|
|
|
|
dev->caps.hca_core_clock = hca_param.hca_core_clock;
|
|
|
|
memset(&dev_cap, 0, sizeof(dev_cap));
|
|
dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
|
|
err = mlx4_dev_cap(dev, &dev_cap);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
err = mlx4_QUERY_FW(dev);
|
|
if (err)
|
|
mlx4_err(dev, "QUERY_FW command failed: could not get FW version\n");
|
|
|
|
page_size = ~dev->caps.page_size_cap + 1;
|
|
mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
|
|
if (page_size > PAGE_SIZE) {
|
|
mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
|
|
page_size, PAGE_SIZE);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* slave gets uar page size from QUERY_HCA fw command */
|
|
dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
|
|
|
|
/* TODO: relax this assumption */
|
|
if (dev->caps.uar_page_size != PAGE_SIZE) {
|
|
mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
|
|
dev->caps.uar_page_size, PAGE_SIZE);
|
|
return -ENODEV;
|
|
}
|
|
|
|
memset(&func_cap, 0, sizeof(func_cap));
|
|
err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n",
|
|
err);
|
|
return err;
|
|
}
|
|
|
|
if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
|
|
PF_CONTEXT_BEHAVIOUR_MASK) {
|
|
mlx4_err(dev, "Unknown pf context behaviour %x known flags %x\n",
|
|
func_cap.pf_context_behaviour, PF_CONTEXT_BEHAVIOUR_MASK);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
dev->caps.num_ports = func_cap.num_ports;
|
|
dev->quotas.qp = func_cap.qp_quota;
|
|
dev->quotas.srq = func_cap.srq_quota;
|
|
dev->quotas.cq = func_cap.cq_quota;
|
|
dev->quotas.mpt = func_cap.mpt_quota;
|
|
dev->quotas.mtt = func_cap.mtt_quota;
|
|
dev->caps.num_qps = 1 << hca_param.log_num_qps;
|
|
dev->caps.num_srqs = 1 << hca_param.log_num_srqs;
|
|
dev->caps.num_cqs = 1 << hca_param.log_num_cqs;
|
|
dev->caps.num_mpts = 1 << hca_param.log_mpt_sz;
|
|
dev->caps.num_eqs = func_cap.max_eq;
|
|
dev->caps.reserved_eqs = func_cap.reserved_eq;
|
|
dev->caps.reserved_lkey = func_cap.reserved_lkey;
|
|
dev->caps.num_pds = MLX4_NUM_PDS;
|
|
dev->caps.num_mgms = 0;
|
|
dev->caps.num_amgms = 0;
|
|
|
|
if (dev->caps.num_ports > MLX4_MAX_PORTS) {
|
|
mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
|
|
dev->caps.num_ports, MLX4_MAX_PORTS);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dev->caps.qp0_qkey = kcalloc(dev->caps.num_ports, sizeof(u32), GFP_KERNEL);
|
|
dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
|
|
dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
|
|
dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
|
|
dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
|
|
|
|
if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
|
|
!dev->caps.qp1_tunnel || !dev->caps.qp1_proxy ||
|
|
!dev->caps.qp0_qkey) {
|
|
err = -ENOMEM;
|
|
goto err_mem;
|
|
}
|
|
|
|
for (i = 1; i <= dev->caps.num_ports; ++i) {
|
|
err = mlx4_QUERY_FUNC_CAP(dev, i, &func_cap);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_FUNC_CAP port command failed for port %d, aborting (%d)\n",
|
|
i, err);
|
|
goto err_mem;
|
|
}
|
|
dev->caps.qp0_qkey[i - 1] = func_cap.qp0_qkey;
|
|
dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
|
|
dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
|
|
dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
|
|
dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
|
|
dev->caps.port_mask[i] = dev->caps.port_type[i];
|
|
dev->caps.phys_port_id[i] = func_cap.phys_port_id;
|
|
if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
|
|
&dev->caps.gid_table_len[i],
|
|
&dev->caps.pkey_table_len[i]))
|
|
goto err_mem;
|
|
}
|
|
|
|
if (dev->caps.uar_page_size * (dev->caps.num_uars -
|
|
dev->caps.reserved_uars) >
|
|
pci_resource_len(dev->persist->pdev,
|
|
2)) {
|
|
mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
|
|
dev->caps.uar_page_size * dev->caps.num_uars,
|
|
(unsigned long long)
|
|
pci_resource_len(dev->persist->pdev, 2));
|
|
goto err_mem;
|
|
}
|
|
|
|
if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
|
|
dev->caps.eqe_size = 64;
|
|
dev->caps.eqe_factor = 1;
|
|
} else {
|
|
dev->caps.eqe_size = 32;
|
|
dev->caps.eqe_factor = 0;
|
|
}
|
|
|
|
if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
|
|
dev->caps.cqe_size = 64;
|
|
dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
|
|
} else {
|
|
dev->caps.cqe_size = 32;
|
|
}
|
|
|
|
if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_EQE_STRIDE_ENABLED) {
|
|
dev->caps.eqe_size = hca_param.eqe_size;
|
|
dev->caps.eqe_factor = 0;
|
|
}
|
|
|
|
if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_CQE_STRIDE_ENABLED) {
|
|
dev->caps.cqe_size = hca_param.cqe_size;
|
|
/* User still need to know when CQE > 32B */
|
|
dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
|
|
}
|
|
|
|
dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
|
|
mlx4_warn(dev, "Timestamping is not supported in slave mode\n");
|
|
|
|
slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
|
|
mlx4_dbg(dev, "RSS support for IP fragments is %s\n",
|
|
hca_param.rss_ip_frags ? "on" : "off");
|
|
|
|
if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP &&
|
|
dev->caps.bf_reg_size)
|
|
dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_ETH_BF_QP;
|
|
|
|
if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_A0_RES_QP)
|
|
dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_A0_QP;
|
|
|
|
return 0;
|
|
|
|
err_mem:
|
|
kfree(dev->caps.qp0_qkey);
|
|
kfree(dev->caps.qp0_tunnel);
|
|
kfree(dev->caps.qp0_proxy);
|
|
kfree(dev->caps.qp1_tunnel);
|
|
kfree(dev->caps.qp1_proxy);
|
|
dev->caps.qp0_qkey = NULL;
|
|
dev->caps.qp0_tunnel = NULL;
|
|
dev->caps.qp0_proxy = NULL;
|
|
dev->caps.qp1_tunnel = NULL;
|
|
dev->caps.qp1_proxy = NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_request_modules(struct mlx4_dev *dev)
|
|
{
|
|
int port;
|
|
int has_ib_port = false;
|
|
int has_eth_port = false;
|
|
#define EN_DRV_NAME "mlx4_en"
|
|
#define IB_DRV_NAME "mlx4_ib"
|
|
|
|
for (port = 1; port <= dev->caps.num_ports; port++) {
|
|
if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
|
|
has_ib_port = true;
|
|
else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
|
|
has_eth_port = true;
|
|
}
|
|
|
|
if (has_eth_port)
|
|
request_module_nowait(EN_DRV_NAME);
|
|
if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
|
|
request_module_nowait(IB_DRV_NAME);
|
|
}
|
|
|
|
/*
|
|
* Change the port configuration of the device.
|
|
* Every user of this function must hold the port mutex.
|
|
*/
|
|
int mlx4_change_port_types(struct mlx4_dev *dev,
|
|
enum mlx4_port_type *port_types)
|
|
{
|
|
int err = 0;
|
|
int change = 0;
|
|
int port;
|
|
|
|
for (port = 0; port < dev->caps.num_ports; port++) {
|
|
/* Change the port type only if the new type is different
|
|
* from the current, and not set to Auto */
|
|
if (port_types[port] != dev->caps.port_type[port + 1])
|
|
change = 1;
|
|
}
|
|
if (change) {
|
|
mlx4_unregister_device(dev);
|
|
for (port = 1; port <= dev->caps.num_ports; port++) {
|
|
mlx4_CLOSE_PORT(dev, port);
|
|
dev->caps.port_type[port] = port_types[port - 1];
|
|
err = mlx4_SET_PORT(dev, port, -1);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to set port %d, aborting\n",
|
|
port);
|
|
goto out;
|
|
}
|
|
}
|
|
mlx4_set_port_mask(dev);
|
|
err = mlx4_register_device(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to register device\n");
|
|
goto out;
|
|
}
|
|
mlx4_request_modules(dev);
|
|
}
|
|
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static ssize_t show_port_type(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
|
|
port_attr);
|
|
struct mlx4_dev *mdev = info->dev;
|
|
char type[8];
|
|
|
|
sprintf(type, "%s",
|
|
(mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
|
|
"ib" : "eth");
|
|
if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
|
|
sprintf(buf, "auto (%s)\n", type);
|
|
else
|
|
sprintf(buf, "%s\n", type);
|
|
|
|
return strlen(buf);
|
|
}
|
|
|
|
static ssize_t set_port_type(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
|
|
port_attr);
|
|
struct mlx4_dev *mdev = info->dev;
|
|
struct mlx4_priv *priv = mlx4_priv(mdev);
|
|
enum mlx4_port_type types[MLX4_MAX_PORTS];
|
|
enum mlx4_port_type new_types[MLX4_MAX_PORTS];
|
|
static DEFINE_MUTEX(set_port_type_mutex);
|
|
int i;
|
|
int err = 0;
|
|
|
|
mutex_lock(&set_port_type_mutex);
|
|
|
|
if (!strcmp(buf, "ib\n"))
|
|
info->tmp_type = MLX4_PORT_TYPE_IB;
|
|
else if (!strcmp(buf, "eth\n"))
|
|
info->tmp_type = MLX4_PORT_TYPE_ETH;
|
|
else if (!strcmp(buf, "auto\n"))
|
|
info->tmp_type = MLX4_PORT_TYPE_AUTO;
|
|
else {
|
|
mlx4_err(mdev, "%s is not supported port type\n", buf);
|
|
err = -EINVAL;
|
|
goto err_out;
|
|
}
|
|
|
|
mlx4_stop_sense(mdev);
|
|
mutex_lock(&priv->port_mutex);
|
|
/* Possible type is always the one that was delivered */
|
|
mdev->caps.possible_type[info->port] = info->tmp_type;
|
|
|
|
for (i = 0; i < mdev->caps.num_ports; i++) {
|
|
types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
|
|
mdev->caps.possible_type[i+1];
|
|
if (types[i] == MLX4_PORT_TYPE_AUTO)
|
|
types[i] = mdev->caps.port_type[i+1];
|
|
}
|
|
|
|
if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
|
|
!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
|
|
for (i = 1; i <= mdev->caps.num_ports; i++) {
|
|
if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
|
|
mdev->caps.possible_type[i] = mdev->caps.port_type[i];
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
}
|
|
if (err) {
|
|
mlx4_err(mdev, "Auto sensing is not supported on this HCA. Set only 'eth' or 'ib' for both ports (should be the same)\n");
|
|
goto out;
|
|
}
|
|
|
|
mlx4_do_sense_ports(mdev, new_types, types);
|
|
|
|
err = mlx4_check_port_params(mdev, new_types);
|
|
if (err)
|
|
goto out;
|
|
|
|
/* We are about to apply the changes after the configuration
|
|
* was verified, no need to remember the temporary types
|
|
* any more */
|
|
for (i = 0; i < mdev->caps.num_ports; i++)
|
|
priv->port[i + 1].tmp_type = 0;
|
|
|
|
err = mlx4_change_port_types(mdev, new_types);
|
|
|
|
out:
|
|
mlx4_start_sense(mdev);
|
|
mutex_unlock(&priv->port_mutex);
|
|
err_out:
|
|
mutex_unlock(&set_port_type_mutex);
|
|
|
|
return err ? err : count;
|
|
}
|
|
|
|
enum ibta_mtu {
|
|
IB_MTU_256 = 1,
|
|
IB_MTU_512 = 2,
|
|
IB_MTU_1024 = 3,
|
|
IB_MTU_2048 = 4,
|
|
IB_MTU_4096 = 5
|
|
};
|
|
|
|
static inline int int_to_ibta_mtu(int mtu)
|
|
{
|
|
switch (mtu) {
|
|
case 256: return IB_MTU_256;
|
|
case 512: return IB_MTU_512;
|
|
case 1024: return IB_MTU_1024;
|
|
case 2048: return IB_MTU_2048;
|
|
case 4096: return IB_MTU_4096;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
|
|
{
|
|
switch (mtu) {
|
|
case IB_MTU_256: return 256;
|
|
case IB_MTU_512: return 512;
|
|
case IB_MTU_1024: return 1024;
|
|
case IB_MTU_2048: return 2048;
|
|
case IB_MTU_4096: return 4096;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
static ssize_t show_port_ib_mtu(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
|
|
port_mtu_attr);
|
|
struct mlx4_dev *mdev = info->dev;
|
|
|
|
if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
|
|
mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
|
|
|
|
sprintf(buf, "%d\n",
|
|
ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
|
|
return strlen(buf);
|
|
}
|
|
|
|
static ssize_t set_port_ib_mtu(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
|
|
port_mtu_attr);
|
|
struct mlx4_dev *mdev = info->dev;
|
|
struct mlx4_priv *priv = mlx4_priv(mdev);
|
|
int err, port, mtu, ibta_mtu = -1;
|
|
|
|
if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
|
|
mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = kstrtoint(buf, 0, &mtu);
|
|
if (!err)
|
|
ibta_mtu = int_to_ibta_mtu(mtu);
|
|
|
|
if (err || ibta_mtu < 0) {
|
|
mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
|
|
|
|
mlx4_stop_sense(mdev);
|
|
mutex_lock(&priv->port_mutex);
|
|
mlx4_unregister_device(mdev);
|
|
for (port = 1; port <= mdev->caps.num_ports; port++) {
|
|
mlx4_CLOSE_PORT(mdev, port);
|
|
err = mlx4_SET_PORT(mdev, port, -1);
|
|
if (err) {
|
|
mlx4_err(mdev, "Failed to set port %d, aborting\n",
|
|
port);
|
|
goto err_set_port;
|
|
}
|
|
}
|
|
err = mlx4_register_device(mdev);
|
|
err_set_port:
|
|
mutex_unlock(&priv->port_mutex);
|
|
mlx4_start_sense(mdev);
|
|
return err ? err : count;
|
|
}
|
|
|
|
int mlx4_bond(struct mlx4_dev *dev)
|
|
{
|
|
int ret = 0;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
mutex_lock(&priv->bond_mutex);
|
|
|
|
if (!mlx4_is_bonded(dev))
|
|
ret = mlx4_do_bond(dev, true);
|
|
else
|
|
ret = 0;
|
|
|
|
mutex_unlock(&priv->bond_mutex);
|
|
if (ret)
|
|
mlx4_err(dev, "Failed to bond device: %d\n", ret);
|
|
else
|
|
mlx4_dbg(dev, "Device is bonded\n");
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_bond);
|
|
|
|
int mlx4_unbond(struct mlx4_dev *dev)
|
|
{
|
|
int ret = 0;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
mutex_lock(&priv->bond_mutex);
|
|
|
|
if (mlx4_is_bonded(dev))
|
|
ret = mlx4_do_bond(dev, false);
|
|
|
|
mutex_unlock(&priv->bond_mutex);
|
|
if (ret)
|
|
mlx4_err(dev, "Failed to unbond device: %d\n", ret);
|
|
else
|
|
mlx4_dbg(dev, "Device is unbonded\n");
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_unbond);
|
|
|
|
|
|
int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p)
|
|
{
|
|
u8 port1 = v2p->port1;
|
|
u8 port2 = v2p->port2;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int err;
|
|
|
|
if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP))
|
|
return -ENOTSUPP;
|
|
|
|
mutex_lock(&priv->bond_mutex);
|
|
|
|
/* zero means keep current mapping for this port */
|
|
if (port1 == 0)
|
|
port1 = priv->v2p.port1;
|
|
if (port2 == 0)
|
|
port2 = priv->v2p.port2;
|
|
|
|
if ((port1 < 1) || (port1 > MLX4_MAX_PORTS) ||
|
|
(port2 < 1) || (port2 > MLX4_MAX_PORTS) ||
|
|
(port1 == 2 && port2 == 1)) {
|
|
/* besides boundary checks cross mapping makes
|
|
* no sense and therefore not allowed */
|
|
err = -EINVAL;
|
|
} else if ((port1 == priv->v2p.port1) &&
|
|
(port2 == priv->v2p.port2)) {
|
|
err = 0;
|
|
} else {
|
|
err = mlx4_virt2phy_port_map(dev, port1, port2);
|
|
if (!err) {
|
|
mlx4_dbg(dev, "port map changed: [%d][%d]\n",
|
|
port1, port2);
|
|
priv->v2p.port1 = port1;
|
|
priv->v2p.port2 = port2;
|
|
} else {
|
|
mlx4_err(dev, "Failed to change port mape: %d\n", err);
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&priv->bond_mutex);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_port_map_set);
|
|
|
|
static int mlx4_load_fw(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int err;
|
|
|
|
priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
|
|
GFP_HIGHUSER | __GFP_NOWARN, 0);
|
|
if (!priv->fw.fw_icm) {
|
|
mlx4_err(dev, "Couldn't allocate FW area, aborting\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
|
|
if (err) {
|
|
mlx4_err(dev, "MAP_FA command failed, aborting\n");
|
|
goto err_free;
|
|
}
|
|
|
|
err = mlx4_RUN_FW(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "RUN_FW command failed, aborting\n");
|
|
goto err_unmap_fa;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_unmap_fa:
|
|
mlx4_UNMAP_FA(dev);
|
|
|
|
err_free:
|
|
mlx4_free_icm(dev, priv->fw.fw_icm, 0);
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
|
|
int cmpt_entry_sz)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int err;
|
|
int num_eqs;
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
|
|
cmpt_base +
|
|
((u64) (MLX4_CMPT_TYPE_QP *
|
|
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
|
|
cmpt_entry_sz, dev->caps.num_qps,
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
|
|
0, 0);
|
|
if (err)
|
|
goto err;
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
|
|
cmpt_base +
|
|
((u64) (MLX4_CMPT_TYPE_SRQ *
|
|
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
|
|
cmpt_entry_sz, dev->caps.num_srqs,
|
|
dev->caps.reserved_srqs, 0, 0);
|
|
if (err)
|
|
goto err_qp;
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
|
|
cmpt_base +
|
|
((u64) (MLX4_CMPT_TYPE_CQ *
|
|
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
|
|
cmpt_entry_sz, dev->caps.num_cqs,
|
|
dev->caps.reserved_cqs, 0, 0);
|
|
if (err)
|
|
goto err_srq;
|
|
|
|
num_eqs = dev->phys_caps.num_phys_eqs;
|
|
err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
|
|
cmpt_base +
|
|
((u64) (MLX4_CMPT_TYPE_EQ *
|
|
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
|
|
cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
|
|
if (err)
|
|
goto err_cq;
|
|
|
|
return 0;
|
|
|
|
err_cq:
|
|
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
|
|
|
|
err_srq:
|
|
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
|
|
|
|
err_qp:
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
|
|
|
|
err:
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
|
|
struct mlx4_init_hca_param *init_hca, u64 icm_size)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
u64 aux_pages;
|
|
int num_eqs;
|
|
int err;
|
|
|
|
err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
|
|
if (err) {
|
|
mlx4_err(dev, "SET_ICM_SIZE command failed, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory\n",
|
|
(unsigned long long) icm_size >> 10,
|
|
(unsigned long long) aux_pages << 2);
|
|
|
|
priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
|
|
GFP_HIGHUSER | __GFP_NOWARN, 0);
|
|
if (!priv->fw.aux_icm) {
|
|
mlx4_err(dev, "Couldn't allocate aux memory, aborting\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
|
|
if (err) {
|
|
mlx4_err(dev, "MAP_ICM_AUX command failed, aborting\n");
|
|
goto err_free_aux;
|
|
}
|
|
|
|
err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map cMPT context memory, aborting\n");
|
|
goto err_unmap_aux;
|
|
}
|
|
|
|
|
|
num_eqs = dev->phys_caps.num_phys_eqs;
|
|
err = mlx4_init_icm_table(dev, &priv->eq_table.table,
|
|
init_hca->eqc_base, dev_cap->eqc_entry_sz,
|
|
num_eqs, num_eqs, 0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map EQ context memory, aborting\n");
|
|
goto err_unmap_cmpt;
|
|
}
|
|
|
|
/*
|
|
* Reserved MTT entries must be aligned up to a cacheline
|
|
* boundary, since the FW will write to them, while the driver
|
|
* writes to all other MTT entries. (The variable
|
|
* dev->caps.mtt_entry_sz below is really the MTT segment
|
|
* size, not the raw entry size)
|
|
*/
|
|
dev->caps.reserved_mtts =
|
|
ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
|
|
dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
|
|
init_hca->mtt_base,
|
|
dev->caps.mtt_entry_sz,
|
|
dev->caps.num_mtts,
|
|
dev->caps.reserved_mtts, 1, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map MTT context memory, aborting\n");
|
|
goto err_unmap_eq;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
|
|
init_hca->dmpt_base,
|
|
dev_cap->dmpt_entry_sz,
|
|
dev->caps.num_mpts,
|
|
dev->caps.reserved_mrws, 1, 1);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map dMPT context memory, aborting\n");
|
|
goto err_unmap_mtt;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
|
|
init_hca->qpc_base,
|
|
dev_cap->qpc_entry_sz,
|
|
dev->caps.num_qps,
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
|
|
0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map QP context memory, aborting\n");
|
|
goto err_unmap_dmpt;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
|
|
init_hca->auxc_base,
|
|
dev_cap->aux_entry_sz,
|
|
dev->caps.num_qps,
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
|
|
0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map AUXC context memory, aborting\n");
|
|
goto err_unmap_qp;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
|
|
init_hca->altc_base,
|
|
dev_cap->altc_entry_sz,
|
|
dev->caps.num_qps,
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
|
|
0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map ALTC context memory, aborting\n");
|
|
goto err_unmap_auxc;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
|
|
init_hca->rdmarc_base,
|
|
dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
|
|
dev->caps.num_qps,
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
|
|
0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
|
|
goto err_unmap_altc;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->cq_table.table,
|
|
init_hca->cqc_base,
|
|
dev_cap->cqc_entry_sz,
|
|
dev->caps.num_cqs,
|
|
dev->caps.reserved_cqs, 0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map CQ context memory, aborting\n");
|
|
goto err_unmap_rdmarc;
|
|
}
|
|
|
|
err = mlx4_init_icm_table(dev, &priv->srq_table.table,
|
|
init_hca->srqc_base,
|
|
dev_cap->srq_entry_sz,
|
|
dev->caps.num_srqs,
|
|
dev->caps.reserved_srqs, 0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map SRQ context memory, aborting\n");
|
|
goto err_unmap_cq;
|
|
}
|
|
|
|
/*
|
|
* For flow steering device managed mode it is required to use
|
|
* mlx4_init_icm_table. For B0 steering mode it's not strictly
|
|
* required, but for simplicity just map the whole multicast
|
|
* group table now. The table isn't very big and it's a lot
|
|
* easier than trying to track ref counts.
|
|
*/
|
|
err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
|
|
init_hca->mc_base,
|
|
mlx4_get_mgm_entry_size(dev),
|
|
dev->caps.num_mgms + dev->caps.num_amgms,
|
|
dev->caps.num_mgms + dev->caps.num_amgms,
|
|
0, 0);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to map MCG context memory, aborting\n");
|
|
goto err_unmap_srq;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_unmap_srq:
|
|
mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
|
|
|
|
err_unmap_cq:
|
|
mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
|
|
|
|
err_unmap_rdmarc:
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
|
|
|
|
err_unmap_altc:
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
|
|
|
|
err_unmap_auxc:
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
|
|
|
|
err_unmap_qp:
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
|
|
|
|
err_unmap_dmpt:
|
|
mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
|
|
|
|
err_unmap_mtt:
|
|
mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
|
|
|
|
err_unmap_eq:
|
|
mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
|
|
|
|
err_unmap_cmpt:
|
|
mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
|
|
|
|
err_unmap_aux:
|
|
mlx4_UNMAP_ICM_AUX(dev);
|
|
|
|
err_free_aux:
|
|
mlx4_free_icm(dev, priv->fw.aux_icm, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_free_icms(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
|
|
mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
|
|
mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
|
|
mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
|
|
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
|
|
|
|
mlx4_UNMAP_ICM_AUX(dev);
|
|
mlx4_free_icm(dev, priv->fw.aux_icm, 0);
|
|
}
|
|
|
|
static void mlx4_slave_exit(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
mutex_lock(&priv->cmd.slave_cmd_mutex);
|
|
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP,
|
|
MLX4_COMM_TIME))
|
|
mlx4_warn(dev, "Failed to close slave function\n");
|
|
mutex_unlock(&priv->cmd.slave_cmd_mutex);
|
|
}
|
|
|
|
static int map_bf_area(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
resource_size_t bf_start;
|
|
resource_size_t bf_len;
|
|
int err = 0;
|
|
|
|
if (!dev->caps.bf_reg_size)
|
|
return -ENXIO;
|
|
|
|
bf_start = pci_resource_start(dev->persist->pdev, 2) +
|
|
(dev->caps.num_uars << PAGE_SHIFT);
|
|
bf_len = pci_resource_len(dev->persist->pdev, 2) -
|
|
(dev->caps.num_uars << PAGE_SHIFT);
|
|
priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
|
|
if (!priv->bf_mapping)
|
|
err = -ENOMEM;
|
|
|
|
return err;
|
|
}
|
|
|
|
static void unmap_bf_area(struct mlx4_dev *dev)
|
|
{
|
|
if (mlx4_priv(dev)->bf_mapping)
|
|
io_mapping_free(mlx4_priv(dev)->bf_mapping);
|
|
}
|
|
|
|
cycle_t mlx4_read_clock(struct mlx4_dev *dev)
|
|
{
|
|
u32 clockhi, clocklo, clockhi1;
|
|
cycle_t cycles;
|
|
int i;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
clockhi = swab32(readl(priv->clock_mapping));
|
|
clocklo = swab32(readl(priv->clock_mapping + 4));
|
|
clockhi1 = swab32(readl(priv->clock_mapping));
|
|
if (clockhi == clockhi1)
|
|
break;
|
|
}
|
|
|
|
cycles = (u64) clockhi << 32 | (u64) clocklo;
|
|
|
|
return cycles;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_read_clock);
|
|
|
|
|
|
static int map_internal_clock(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
priv->clock_mapping =
|
|
ioremap(pci_resource_start(dev->persist->pdev,
|
|
priv->fw.clock_bar) +
|
|
priv->fw.clock_offset, MLX4_CLOCK_SIZE);
|
|
|
|
if (!priv->clock_mapping)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void unmap_internal_clock(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
if (priv->clock_mapping)
|
|
iounmap(priv->clock_mapping);
|
|
}
|
|
|
|
static void mlx4_close_hca(struct mlx4_dev *dev)
|
|
{
|
|
unmap_internal_clock(dev);
|
|
unmap_bf_area(dev);
|
|
if (mlx4_is_slave(dev))
|
|
mlx4_slave_exit(dev);
|
|
else {
|
|
mlx4_CLOSE_HCA(dev, 0);
|
|
mlx4_free_icms(dev);
|
|
}
|
|
}
|
|
|
|
static void mlx4_close_fw(struct mlx4_dev *dev)
|
|
{
|
|
if (!mlx4_is_slave(dev)) {
|
|
mlx4_UNMAP_FA(dev);
|
|
mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
|
|
}
|
|
}
|
|
|
|
static int mlx4_comm_check_offline(struct mlx4_dev *dev)
|
|
{
|
|
#define COMM_CHAN_OFFLINE_OFFSET 0x09
|
|
|
|
u32 comm_flags;
|
|
u32 offline_bit;
|
|
unsigned long end;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
end = msecs_to_jiffies(MLX4_COMM_OFFLINE_TIME_OUT) + jiffies;
|
|
while (time_before(jiffies, end)) {
|
|
comm_flags = swab32(readl((__iomem char *)priv->mfunc.comm +
|
|
MLX4_COMM_CHAN_FLAGS));
|
|
offline_bit = (comm_flags &
|
|
(u32)(1 << COMM_CHAN_OFFLINE_OFFSET));
|
|
if (!offline_bit)
|
|
return 0;
|
|
/* There are cases as part of AER/Reset flow that PF needs
|
|
* around 100 msec to load. We therefore sleep for 100 msec
|
|
* to allow other tasks to make use of that CPU during this
|
|
* time interval.
|
|
*/
|
|
msleep(100);
|
|
}
|
|
mlx4_err(dev, "Communication channel is offline.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
static void mlx4_reset_vf_support(struct mlx4_dev *dev)
|
|
{
|
|
#define COMM_CHAN_RST_OFFSET 0x1e
|
|
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
u32 comm_rst;
|
|
u32 comm_caps;
|
|
|
|
comm_caps = swab32(readl((__iomem char *)priv->mfunc.comm +
|
|
MLX4_COMM_CHAN_CAPS));
|
|
comm_rst = (comm_caps & (u32)(1 << COMM_CHAN_RST_OFFSET));
|
|
|
|
if (comm_rst)
|
|
dev->caps.vf_caps |= MLX4_VF_CAP_FLAG_RESET;
|
|
}
|
|
|
|
static int mlx4_init_slave(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
u64 dma = (u64) priv->mfunc.vhcr_dma;
|
|
int ret_from_reset = 0;
|
|
u32 slave_read;
|
|
u32 cmd_channel_ver;
|
|
|
|
if (atomic_read(&pf_loading)) {
|
|
mlx4_warn(dev, "PF is not ready - Deferring probe\n");
|
|
return -EPROBE_DEFER;
|
|
}
|
|
|
|
mutex_lock(&priv->cmd.slave_cmd_mutex);
|
|
priv->cmd.max_cmds = 1;
|
|
if (mlx4_comm_check_offline(dev)) {
|
|
mlx4_err(dev, "PF is not responsive, skipping initialization\n");
|
|
goto err_offline;
|
|
}
|
|
|
|
mlx4_reset_vf_support(dev);
|
|
mlx4_warn(dev, "Sending reset\n");
|
|
ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
|
|
MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME);
|
|
/* if we are in the middle of flr the slave will try
|
|
* NUM_OF_RESET_RETRIES times before leaving.*/
|
|
if (ret_from_reset) {
|
|
if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
|
|
mlx4_warn(dev, "slave is currently in the middle of FLR - Deferring probe\n");
|
|
mutex_unlock(&priv->cmd.slave_cmd_mutex);
|
|
return -EPROBE_DEFER;
|
|
} else
|
|
goto err;
|
|
}
|
|
|
|
/* check the driver version - the slave I/F revision
|
|
* must match the master's */
|
|
slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
|
|
cmd_channel_ver = mlx4_comm_get_version();
|
|
|
|
if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
|
|
MLX4_COMM_GET_IF_REV(slave_read)) {
|
|
mlx4_err(dev, "slave driver version is not supported by the master\n");
|
|
goto err;
|
|
}
|
|
|
|
mlx4_warn(dev, "Sending vhcr0\n");
|
|
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
|
|
MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
|
|
goto err;
|
|
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
|
|
MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
|
|
goto err;
|
|
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
|
|
MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
|
|
goto err;
|
|
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma,
|
|
MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
|
|
goto err;
|
|
|
|
mutex_unlock(&priv->cmd.slave_cmd_mutex);
|
|
return 0;
|
|
|
|
err:
|
|
mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, 0);
|
|
err_offline:
|
|
mutex_unlock(&priv->cmd.slave_cmd_mutex);
|
|
return -EIO;
|
|
}
|
|
|
|
static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 1; i <= dev->caps.num_ports; i++) {
|
|
if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
|
|
dev->caps.gid_table_len[i] =
|
|
mlx4_get_slave_num_gids(dev, 0, i);
|
|
else
|
|
dev->caps.gid_table_len[i] = 1;
|
|
dev->caps.pkey_table_len[i] =
|
|
dev->phys_caps.pkey_phys_table_len[i] - 1;
|
|
}
|
|
}
|
|
|
|
static int choose_log_fs_mgm_entry_size(int qp_per_entry)
|
|
{
|
|
int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
|
|
|
|
for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
|
|
i++) {
|
|
if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
|
|
break;
|
|
}
|
|
|
|
return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
|
|
}
|
|
|
|
static const char *dmfs_high_rate_steering_mode_str(int dmfs_high_steer_mode)
|
|
{
|
|
switch (dmfs_high_steer_mode) {
|
|
case MLX4_STEERING_DMFS_A0_DEFAULT:
|
|
return "default performance";
|
|
|
|
case MLX4_STEERING_DMFS_A0_DYNAMIC:
|
|
return "dynamic hybrid mode";
|
|
|
|
case MLX4_STEERING_DMFS_A0_STATIC:
|
|
return "performance optimized for limited rule configuration (static)";
|
|
|
|
case MLX4_STEERING_DMFS_A0_DISABLE:
|
|
return "disabled performance optimized steering";
|
|
|
|
case MLX4_STEERING_DMFS_A0_NOT_SUPPORTED:
|
|
return "performance optimized steering not supported";
|
|
|
|
default:
|
|
return "Unrecognized mode";
|
|
}
|
|
}
|
|
|
|
#define MLX4_DMFS_A0_STEERING (1UL << 2)
|
|
|
|
static void choose_steering_mode(struct mlx4_dev *dev,
|
|
struct mlx4_dev_cap *dev_cap)
|
|
{
|
|
if (mlx4_log_num_mgm_entry_size <= 0) {
|
|
if ((-mlx4_log_num_mgm_entry_size) & MLX4_DMFS_A0_STEERING) {
|
|
if (dev->caps.dmfs_high_steer_mode ==
|
|
MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
|
|
mlx4_err(dev, "DMFS high rate mode not supported\n");
|
|
else
|
|
dev->caps.dmfs_high_steer_mode =
|
|
MLX4_STEERING_DMFS_A0_STATIC;
|
|
}
|
|
}
|
|
|
|
if (mlx4_log_num_mgm_entry_size <= 0 &&
|
|
dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
|
|
(!mlx4_is_mfunc(dev) ||
|
|
(dev_cap->fs_max_num_qp_per_entry >=
|
|
(dev->persist->num_vfs + 1))) &&
|
|
choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
|
|
MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
|
|
dev->oper_log_mgm_entry_size =
|
|
choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
|
|
dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
|
|
dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
|
|
dev->caps.fs_log_max_ucast_qp_range_size =
|
|
dev_cap->fs_log_max_ucast_qp_range_size;
|
|
} else {
|
|
if (dev->caps.dmfs_high_steer_mode !=
|
|
MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
|
|
dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DISABLE;
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
|
|
dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
|
|
dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
|
|
else {
|
|
dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
|
|
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
|
|
dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
|
|
mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags set to use B0 steering - falling back to A0 steering mode\n");
|
|
}
|
|
dev->oper_log_mgm_entry_size =
|
|
mlx4_log_num_mgm_entry_size > 0 ?
|
|
mlx4_log_num_mgm_entry_size :
|
|
MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
|
|
dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
|
|
}
|
|
mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, modparam log_num_mgm_entry_size = %d\n",
|
|
mlx4_steering_mode_str(dev->caps.steering_mode),
|
|
dev->oper_log_mgm_entry_size,
|
|
mlx4_log_num_mgm_entry_size);
|
|
}
|
|
|
|
static void choose_tunnel_offload_mode(struct mlx4_dev *dev,
|
|
struct mlx4_dev_cap *dev_cap)
|
|
{
|
|
if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
|
|
dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS)
|
|
dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN;
|
|
else
|
|
dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE;
|
|
|
|
mlx4_dbg(dev, "Tunneling offload mode is: %s\n", (dev->caps.tunnel_offload_mode
|
|
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none");
|
|
}
|
|
|
|
static int mlx4_validate_optimized_steering(struct mlx4_dev *dev)
|
|
{
|
|
int i;
|
|
struct mlx4_port_cap port_cap;
|
|
|
|
if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
|
|
return -EINVAL;
|
|
|
|
for (i = 1; i <= dev->caps.num_ports; i++) {
|
|
if (mlx4_dev_port(dev, i, &port_cap)) {
|
|
mlx4_err(dev,
|
|
"QUERY_DEV_CAP command failed, can't veify DMFS high rate steering.\n");
|
|
} else if ((dev->caps.dmfs_high_steer_mode !=
|
|
MLX4_STEERING_DMFS_A0_DEFAULT) &&
|
|
(port_cap.dmfs_optimized_state ==
|
|
!!(dev->caps.dmfs_high_steer_mode ==
|
|
MLX4_STEERING_DMFS_A0_DISABLE))) {
|
|
mlx4_err(dev,
|
|
"DMFS high rate steer mode differ, driver requested %s but %s in FW.\n",
|
|
dmfs_high_rate_steering_mode_str(
|
|
dev->caps.dmfs_high_steer_mode),
|
|
(port_cap.dmfs_optimized_state ?
|
|
"enabled" : "disabled"));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx4_init_fw(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_mod_stat_cfg mlx4_cfg;
|
|
int err = 0;
|
|
|
|
if (!mlx4_is_slave(dev)) {
|
|
err = mlx4_QUERY_FW(dev);
|
|
if (err) {
|
|
if (err == -EACCES)
|
|
mlx4_info(dev, "non-primary physical function, skipping\n");
|
|
else
|
|
mlx4_err(dev, "QUERY_FW command failed, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
err = mlx4_load_fw(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to start FW, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
mlx4_cfg.log_pg_sz_m = 1;
|
|
mlx4_cfg.log_pg_sz = 0;
|
|
err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
|
|
if (err)
|
|
mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_init_hca(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
struct mlx4_adapter adapter;
|
|
struct mlx4_dev_cap dev_cap;
|
|
struct mlx4_profile profile;
|
|
struct mlx4_init_hca_param init_hca;
|
|
u64 icm_size;
|
|
struct mlx4_config_dev_params params;
|
|
int err;
|
|
|
|
if (!mlx4_is_slave(dev)) {
|
|
err = mlx4_dev_cap(dev, &dev_cap);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
choose_steering_mode(dev, &dev_cap);
|
|
choose_tunnel_offload_mode(dev, &dev_cap);
|
|
|
|
if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC &&
|
|
mlx4_is_master(dev))
|
|
dev->caps.function_caps |= MLX4_FUNC_CAP_DMFS_A0_STATIC;
|
|
|
|
err = mlx4_get_phys_port_id(dev);
|
|
if (err)
|
|
mlx4_err(dev, "Fail to get physical port id\n");
|
|
|
|
if (mlx4_is_master(dev))
|
|
mlx4_parav_master_pf_caps(dev);
|
|
|
|
if (mlx4_low_memory_profile()) {
|
|
mlx4_info(dev, "Running from within kdump kernel. Using low memory profile\n");
|
|
profile = low_mem_profile;
|
|
} else {
|
|
profile = default_profile;
|
|
}
|
|
if (dev->caps.steering_mode ==
|
|
MLX4_STEERING_MODE_DEVICE_MANAGED)
|
|
profile.num_mcg = MLX4_FS_NUM_MCG;
|
|
|
|
icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
|
|
&init_hca);
|
|
if ((long long) icm_size < 0) {
|
|
err = icm_size;
|
|
return err;
|
|
}
|
|
|
|
dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
|
|
|
|
init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
|
|
init_hca.uar_page_sz = PAGE_SHIFT - 12;
|
|
init_hca.mw_enabled = 0;
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
|
|
dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
|
|
init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE;
|
|
|
|
err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx4_INIT_HCA(dev, &init_hca);
|
|
if (err) {
|
|
mlx4_err(dev, "INIT_HCA command failed, aborting\n");
|
|
goto err_free_icm;
|
|
}
|
|
|
|
if (dev_cap.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
|
|
err = mlx4_query_func(dev, &dev_cap);
|
|
if (err < 0) {
|
|
mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n");
|
|
goto err_close;
|
|
} else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) {
|
|
dev->caps.num_eqs = dev_cap.max_eqs;
|
|
dev->caps.reserved_eqs = dev_cap.reserved_eqs;
|
|
dev->caps.reserved_uars = dev_cap.reserved_uars;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If TS is supported by FW
|
|
* read HCA frequency by QUERY_HCA command
|
|
*/
|
|
if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
|
|
memset(&init_hca, 0, sizeof(init_hca));
|
|
err = mlx4_QUERY_HCA(dev, &init_hca);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_HCA command failed, disable timestamp\n");
|
|
dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
|
|
} else {
|
|
dev->caps.hca_core_clock =
|
|
init_hca.hca_core_clock;
|
|
}
|
|
|
|
/* In case we got HCA frequency 0 - disable timestamping
|
|
* to avoid dividing by zero
|
|
*/
|
|
if (!dev->caps.hca_core_clock) {
|
|
dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
|
|
mlx4_err(dev,
|
|
"HCA frequency is 0 - timestamping is not supported\n");
|
|
} else if (map_internal_clock(dev)) {
|
|
/*
|
|
* Map internal clock,
|
|
* in case of failure disable timestamping
|
|
*/
|
|
dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
|
|
mlx4_err(dev, "Failed to map internal clock. Timestamping is not supported\n");
|
|
}
|
|
}
|
|
|
|
if (dev->caps.dmfs_high_steer_mode !=
|
|
MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) {
|
|
if (mlx4_validate_optimized_steering(dev))
|
|
mlx4_warn(dev, "Optimized steering validation failed\n");
|
|
|
|
if (dev->caps.dmfs_high_steer_mode ==
|
|
MLX4_STEERING_DMFS_A0_DISABLE) {
|
|
dev->caps.dmfs_high_rate_qpn_base =
|
|
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
|
|
dev->caps.dmfs_high_rate_qpn_range =
|
|
MLX4_A0_STEERING_TABLE_SIZE;
|
|
}
|
|
|
|
mlx4_dbg(dev, "DMFS high rate steer mode is: %s\n",
|
|
dmfs_high_rate_steering_mode_str(
|
|
dev->caps.dmfs_high_steer_mode));
|
|
}
|
|
} else {
|
|
err = mlx4_init_slave(dev);
|
|
if (err) {
|
|
if (err != -EPROBE_DEFER)
|
|
mlx4_err(dev, "Failed to initialize slave\n");
|
|
return err;
|
|
}
|
|
|
|
err = mlx4_slave_cap(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to obtain slave caps\n");
|
|
goto err_close;
|
|
}
|
|
}
|
|
|
|
if (map_bf_area(dev))
|
|
mlx4_dbg(dev, "Failed to map blue flame area\n");
|
|
|
|
/*Only the master set the ports, all the rest got it from it.*/
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_set_port_mask(dev);
|
|
|
|
err = mlx4_QUERY_ADAPTER(dev, &adapter);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_ADAPTER command failed, aborting\n");
|
|
goto unmap_bf;
|
|
}
|
|
|
|
/* Query CONFIG_DEV parameters */
|
|
err = mlx4_config_dev_retrieval(dev, ¶ms);
|
|
if (err && err != -ENOTSUPP) {
|
|
mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n");
|
|
} else if (!err) {
|
|
dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1;
|
|
dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2;
|
|
}
|
|
priv->eq_table.inta_pin = adapter.inta_pin;
|
|
memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
|
|
|
|
return 0;
|
|
|
|
unmap_bf:
|
|
unmap_internal_clock(dev);
|
|
unmap_bf_area(dev);
|
|
|
|
if (mlx4_is_slave(dev)) {
|
|
kfree(dev->caps.qp0_qkey);
|
|
kfree(dev->caps.qp0_tunnel);
|
|
kfree(dev->caps.qp0_proxy);
|
|
kfree(dev->caps.qp1_tunnel);
|
|
kfree(dev->caps.qp1_proxy);
|
|
}
|
|
|
|
err_close:
|
|
if (mlx4_is_slave(dev))
|
|
mlx4_slave_exit(dev);
|
|
else
|
|
mlx4_CLOSE_HCA(dev, 0);
|
|
|
|
err_free_icm:
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_free_icms(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_init_counters_table(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int nent;
|
|
|
|
if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
|
|
return -ENOENT;
|
|
|
|
nent = dev->caps.max_counters;
|
|
return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
|
|
}
|
|
|
|
static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
|
|
{
|
|
mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
|
|
}
|
|
|
|
int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
|
|
return -ENOENT;
|
|
|
|
*idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
|
|
if (*idx == -1)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
|
|
{
|
|
u64 out_param;
|
|
int err;
|
|
|
|
if (mlx4_is_mfunc(dev)) {
|
|
err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
|
|
RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
|
|
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
|
|
if (!err)
|
|
*idx = get_param_l(&out_param);
|
|
|
|
return err;
|
|
}
|
|
return __mlx4_counter_alloc(dev, idx);
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
|
|
|
|
void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
|
|
{
|
|
mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx, MLX4_USE_RR);
|
|
return;
|
|
}
|
|
|
|
void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
|
|
{
|
|
u64 in_param = 0;
|
|
|
|
if (mlx4_is_mfunc(dev)) {
|
|
set_param_l(&in_param, idx);
|
|
mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
|
|
MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
|
|
MLX4_CMD_WRAPPED);
|
|
return;
|
|
}
|
|
__mlx4_counter_free(dev, idx);
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_counter_free);
|
|
|
|
void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry, int port)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_set_admin_guid);
|
|
|
|
__be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
return priv->mfunc.master.vf_admin[entry].vport[port].guid;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mlx4_get_admin_guid);
|
|
|
|
void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
__be64 guid;
|
|
|
|
/* hw GUID */
|
|
if (entry == 0)
|
|
return;
|
|
|
|
get_random_bytes((char *)&guid, sizeof(guid));
|
|
guid &= ~(cpu_to_be64(1ULL << 56));
|
|
guid |= cpu_to_be64(1ULL << 57);
|
|
priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
|
|
}
|
|
|
|
static int mlx4_setup_hca(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int err;
|
|
int port;
|
|
__be32 ib_port_default_caps;
|
|
|
|
err = mlx4_init_uar_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize user access region table, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
err = mlx4_uar_alloc(dev, &priv->driver_uar);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to allocate driver access region, aborting\n");
|
|
goto err_uar_table_free;
|
|
}
|
|
|
|
priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
|
|
if (!priv->kar) {
|
|
mlx4_err(dev, "Couldn't map kernel access region, aborting\n");
|
|
err = -ENOMEM;
|
|
goto err_uar_free;
|
|
}
|
|
|
|
err = mlx4_init_pd_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize protection domain table, aborting\n");
|
|
goto err_kar_unmap;
|
|
}
|
|
|
|
err = mlx4_init_xrcd_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize reliable connection domain table, aborting\n");
|
|
goto err_pd_table_free;
|
|
}
|
|
|
|
err = mlx4_init_mr_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize memory region table, aborting\n");
|
|
goto err_xrcd_table_free;
|
|
}
|
|
|
|
if (!mlx4_is_slave(dev)) {
|
|
err = mlx4_init_mcg_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize multicast group table, aborting\n");
|
|
goto err_mr_table_free;
|
|
}
|
|
err = mlx4_config_mad_demux(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed in config_mad_demux, aborting\n");
|
|
goto err_mcg_table_free;
|
|
}
|
|
}
|
|
|
|
err = mlx4_init_eq_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize event queue table, aborting\n");
|
|
goto err_mcg_table_free;
|
|
}
|
|
|
|
err = mlx4_cmd_use_events(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to switch to event-driven firmware commands, aborting\n");
|
|
goto err_eq_table_free;
|
|
}
|
|
|
|
err = mlx4_NOP(dev);
|
|
if (err) {
|
|
if (dev->flags & MLX4_FLAG_MSI_X) {
|
|
mlx4_warn(dev, "NOP command failed to generate MSI-X interrupt IRQ %d)\n",
|
|
priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
|
|
mlx4_warn(dev, "Trying again without MSI-X\n");
|
|
} else {
|
|
mlx4_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting\n",
|
|
priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
|
|
mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
|
|
}
|
|
|
|
goto err_cmd_poll;
|
|
}
|
|
|
|
mlx4_dbg(dev, "NOP command IRQ test passed\n");
|
|
|
|
err = mlx4_init_cq_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize completion queue table, aborting\n");
|
|
goto err_cmd_poll;
|
|
}
|
|
|
|
err = mlx4_init_srq_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize shared receive queue table, aborting\n");
|
|
goto err_cq_table_free;
|
|
}
|
|
|
|
err = mlx4_init_qp_table(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to initialize queue pair table, aborting\n");
|
|
goto err_srq_table_free;
|
|
}
|
|
|
|
err = mlx4_init_counters_table(dev);
|
|
if (err && err != -ENOENT) {
|
|
mlx4_err(dev, "Failed to initialize counters table, aborting\n");
|
|
goto err_qp_table_free;
|
|
}
|
|
|
|
if (!mlx4_is_slave(dev)) {
|
|
for (port = 1; port <= dev->caps.num_ports; port++) {
|
|
ib_port_default_caps = 0;
|
|
err = mlx4_get_port_ib_caps(dev, port,
|
|
&ib_port_default_caps);
|
|
if (err)
|
|
mlx4_warn(dev, "failed to get port %d default ib capabilities (%d). Continuing with caps = 0\n",
|
|
port, err);
|
|
dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
|
|
|
|
/* initialize per-slave default ib port capabilities */
|
|
if (mlx4_is_master(dev)) {
|
|
int i;
|
|
for (i = 0; i < dev->num_slaves; i++) {
|
|
if (i == mlx4_master_func_num(dev))
|
|
continue;
|
|
priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
|
|
ib_port_default_caps;
|
|
}
|
|
}
|
|
|
|
if (mlx4_is_mfunc(dev))
|
|
dev->caps.port_ib_mtu[port] = IB_MTU_2048;
|
|
else
|
|
dev->caps.port_ib_mtu[port] = IB_MTU_4096;
|
|
|
|
err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
|
|
dev->caps.pkey_table_len[port] : -1);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to set port %d, aborting\n",
|
|
port);
|
|
goto err_counters_table_free;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_counters_table_free:
|
|
mlx4_cleanup_counters_table(dev);
|
|
|
|
err_qp_table_free:
|
|
mlx4_cleanup_qp_table(dev);
|
|
|
|
err_srq_table_free:
|
|
mlx4_cleanup_srq_table(dev);
|
|
|
|
err_cq_table_free:
|
|
mlx4_cleanup_cq_table(dev);
|
|
|
|
err_cmd_poll:
|
|
mlx4_cmd_use_polling(dev);
|
|
|
|
err_eq_table_free:
|
|
mlx4_cleanup_eq_table(dev);
|
|
|
|
err_mcg_table_free:
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_cleanup_mcg_table(dev);
|
|
|
|
err_mr_table_free:
|
|
mlx4_cleanup_mr_table(dev);
|
|
|
|
err_xrcd_table_free:
|
|
mlx4_cleanup_xrcd_table(dev);
|
|
|
|
err_pd_table_free:
|
|
mlx4_cleanup_pd_table(dev);
|
|
|
|
err_kar_unmap:
|
|
iounmap(priv->kar);
|
|
|
|
err_uar_free:
|
|
mlx4_uar_free(dev, &priv->driver_uar);
|
|
|
|
err_uar_table_free:
|
|
mlx4_cleanup_uar_table(dev);
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_enable_msi_x(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
struct msix_entry *entries;
|
|
int i;
|
|
|
|
if (msi_x) {
|
|
int nreq = dev->caps.num_ports * num_online_cpus() + MSIX_LEGACY_SZ;
|
|
|
|
nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
|
|
nreq);
|
|
|
|
entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
|
|
if (!entries)
|
|
goto no_msi;
|
|
|
|
for (i = 0; i < nreq; ++i)
|
|
entries[i].entry = i;
|
|
|
|
nreq = pci_enable_msix_range(dev->persist->pdev, entries, 2,
|
|
nreq);
|
|
|
|
if (nreq < 0) {
|
|
kfree(entries);
|
|
goto no_msi;
|
|
} else if (nreq < MSIX_LEGACY_SZ +
|
|
dev->caps.num_ports * MIN_MSIX_P_PORT) {
|
|
/*Working in legacy mode , all EQ's shared*/
|
|
dev->caps.comp_pool = 0;
|
|
dev->caps.num_comp_vectors = nreq - 1;
|
|
} else {
|
|
dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
|
|
dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
|
|
}
|
|
for (i = 0; i < nreq; ++i)
|
|
priv->eq_table.eq[i].irq = entries[i].vector;
|
|
|
|
dev->flags |= MLX4_FLAG_MSI_X;
|
|
|
|
kfree(entries);
|
|
return;
|
|
}
|
|
|
|
no_msi:
|
|
dev->caps.num_comp_vectors = 1;
|
|
dev->caps.comp_pool = 0;
|
|
|
|
for (i = 0; i < 2; ++i)
|
|
priv->eq_table.eq[i].irq = dev->persist->pdev->irq;
|
|
}
|
|
|
|
static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
|
|
{
|
|
struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
|
|
int err = 0;
|
|
|
|
info->dev = dev;
|
|
info->port = port;
|
|
if (!mlx4_is_slave(dev)) {
|
|
mlx4_init_mac_table(dev, &info->mac_table);
|
|
mlx4_init_vlan_table(dev, &info->vlan_table);
|
|
mlx4_init_roce_gid_table(dev, &info->gid_table);
|
|
info->base_qpn = mlx4_get_base_qpn(dev, port);
|
|
}
|
|
|
|
sprintf(info->dev_name, "mlx4_port%d", port);
|
|
info->port_attr.attr.name = info->dev_name;
|
|
if (mlx4_is_mfunc(dev))
|
|
info->port_attr.attr.mode = S_IRUGO;
|
|
else {
|
|
info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
|
|
info->port_attr.store = set_port_type;
|
|
}
|
|
info->port_attr.show = show_port_type;
|
|
sysfs_attr_init(&info->port_attr.attr);
|
|
|
|
err = device_create_file(&dev->persist->pdev->dev, &info->port_attr);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to create file for port %d\n", port);
|
|
info->port = -1;
|
|
}
|
|
|
|
sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
|
|
info->port_mtu_attr.attr.name = info->dev_mtu_name;
|
|
if (mlx4_is_mfunc(dev))
|
|
info->port_mtu_attr.attr.mode = S_IRUGO;
|
|
else {
|
|
info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
|
|
info->port_mtu_attr.store = set_port_ib_mtu;
|
|
}
|
|
info->port_mtu_attr.show = show_port_ib_mtu;
|
|
sysfs_attr_init(&info->port_mtu_attr.attr);
|
|
|
|
err = device_create_file(&dev->persist->pdev->dev,
|
|
&info->port_mtu_attr);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
|
|
device_remove_file(&info->dev->persist->pdev->dev,
|
|
&info->port_attr);
|
|
info->port = -1;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
|
|
{
|
|
if (info->port < 0)
|
|
return;
|
|
|
|
device_remove_file(&info->dev->persist->pdev->dev, &info->port_attr);
|
|
device_remove_file(&info->dev->persist->pdev->dev,
|
|
&info->port_mtu_attr);
|
|
}
|
|
|
|
static int mlx4_init_steering(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int num_entries = dev->caps.num_ports;
|
|
int i, j;
|
|
|
|
priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
|
|
if (!priv->steer)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_entries; i++)
|
|
for (j = 0; j < MLX4_NUM_STEERS; j++) {
|
|
INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
|
|
INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void mlx4_clear_steering(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
struct mlx4_steer_index *entry, *tmp_entry;
|
|
struct mlx4_promisc_qp *pqp, *tmp_pqp;
|
|
int num_entries = dev->caps.num_ports;
|
|
int i, j;
|
|
|
|
for (i = 0; i < num_entries; i++) {
|
|
for (j = 0; j < MLX4_NUM_STEERS; j++) {
|
|
list_for_each_entry_safe(pqp, tmp_pqp,
|
|
&priv->steer[i].promisc_qps[j],
|
|
list) {
|
|
list_del(&pqp->list);
|
|
kfree(pqp);
|
|
}
|
|
list_for_each_entry_safe(entry, tmp_entry,
|
|
&priv->steer[i].steer_entries[j],
|
|
list) {
|
|
list_del(&entry->list);
|
|
list_for_each_entry_safe(pqp, tmp_pqp,
|
|
&entry->duplicates,
|
|
list) {
|
|
list_del(&pqp->list);
|
|
kfree(pqp);
|
|
}
|
|
kfree(entry);
|
|
}
|
|
}
|
|
}
|
|
kfree(priv->steer);
|
|
}
|
|
|
|
static int extended_func_num(struct pci_dev *pdev)
|
|
{
|
|
return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
|
|
}
|
|
|
|
#define MLX4_OWNER_BASE 0x8069c
|
|
#define MLX4_OWNER_SIZE 4
|
|
|
|
static int mlx4_get_ownership(struct mlx4_dev *dev)
|
|
{
|
|
void __iomem *owner;
|
|
u32 ret;
|
|
|
|
if (pci_channel_offline(dev->persist->pdev))
|
|
return -EIO;
|
|
|
|
owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
|
|
MLX4_OWNER_BASE,
|
|
MLX4_OWNER_SIZE);
|
|
if (!owner) {
|
|
mlx4_err(dev, "Failed to obtain ownership bit\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = readl(owner);
|
|
iounmap(owner);
|
|
return (int) !!ret;
|
|
}
|
|
|
|
static void mlx4_free_ownership(struct mlx4_dev *dev)
|
|
{
|
|
void __iomem *owner;
|
|
|
|
if (pci_channel_offline(dev->persist->pdev))
|
|
return;
|
|
|
|
owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
|
|
MLX4_OWNER_BASE,
|
|
MLX4_OWNER_SIZE);
|
|
if (!owner) {
|
|
mlx4_err(dev, "Failed to obtain ownership bit\n");
|
|
return;
|
|
}
|
|
writel(0, owner);
|
|
msleep(1000);
|
|
iounmap(owner);
|
|
}
|
|
|
|
#define SRIOV_VALID_STATE(flags) (!!((flags) & MLX4_FLAG_SRIOV) ==\
|
|
!!((flags) & MLX4_FLAG_MASTER))
|
|
|
|
static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
|
|
u8 total_vfs, int existing_vfs, int reset_flow)
|
|
{
|
|
u64 dev_flags = dev->flags;
|
|
int err = 0;
|
|
|
|
if (reset_flow) {
|
|
dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs),
|
|
GFP_KERNEL);
|
|
if (!dev->dev_vfs)
|
|
goto free_mem;
|
|
return dev_flags;
|
|
}
|
|
|
|
atomic_inc(&pf_loading);
|
|
if (dev->flags & MLX4_FLAG_SRIOV) {
|
|
if (existing_vfs != total_vfs) {
|
|
mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n",
|
|
existing_vfs, total_vfs);
|
|
total_vfs = existing_vfs;
|
|
}
|
|
}
|
|
|
|
dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL);
|
|
if (NULL == dev->dev_vfs) {
|
|
mlx4_err(dev, "Failed to allocate memory for VFs\n");
|
|
goto disable_sriov;
|
|
}
|
|
|
|
if (!(dev->flags & MLX4_FLAG_SRIOV)) {
|
|
mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs);
|
|
err = pci_enable_sriov(pdev, total_vfs);
|
|
}
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n",
|
|
err);
|
|
goto disable_sriov;
|
|
} else {
|
|
mlx4_warn(dev, "Running in master mode\n");
|
|
dev_flags |= MLX4_FLAG_SRIOV |
|
|
MLX4_FLAG_MASTER;
|
|
dev_flags &= ~MLX4_FLAG_SLAVE;
|
|
dev->persist->num_vfs = total_vfs;
|
|
}
|
|
return dev_flags;
|
|
|
|
disable_sriov:
|
|
atomic_dec(&pf_loading);
|
|
free_mem:
|
|
dev->persist->num_vfs = 0;
|
|
kfree(dev->dev_vfs);
|
|
return dev_flags & ~MLX4_FLAG_MASTER;
|
|
}
|
|
|
|
enum {
|
|
MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64 = -1,
|
|
};
|
|
|
|
static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
|
|
int *nvfs)
|
|
{
|
|
int requested_vfs = nvfs[0] + nvfs[1] + nvfs[2];
|
|
/* Checking for 64 VFs as a limitation of CX2 */
|
|
if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_80_VFS) &&
|
|
requested_vfs >= 64) {
|
|
mlx4_err(dev, "Requested %d VFs, but FW does not support more than 64\n",
|
|
requested_vfs);
|
|
return MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data,
|
|
int total_vfs, int *nvfs, struct mlx4_priv *priv,
|
|
int reset_flow)
|
|
{
|
|
struct mlx4_dev *dev;
|
|
unsigned sum = 0;
|
|
int err;
|
|
int port;
|
|
int i;
|
|
struct mlx4_dev_cap *dev_cap = NULL;
|
|
int existing_vfs = 0;
|
|
|
|
dev = &priv->dev;
|
|
|
|
INIT_LIST_HEAD(&priv->ctx_list);
|
|
spin_lock_init(&priv->ctx_lock);
|
|
|
|
mutex_init(&priv->port_mutex);
|
|
mutex_init(&priv->bond_mutex);
|
|
|
|
INIT_LIST_HEAD(&priv->pgdir_list);
|
|
mutex_init(&priv->pgdir_mutex);
|
|
|
|
INIT_LIST_HEAD(&priv->bf_list);
|
|
mutex_init(&priv->bf_mutex);
|
|
|
|
dev->rev_id = pdev->revision;
|
|
dev->numa_node = dev_to_node(&pdev->dev);
|
|
|
|
/* Detect if this device is a virtual function */
|
|
if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
|
|
mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
|
|
dev->flags |= MLX4_FLAG_SLAVE;
|
|
} else {
|
|
/* We reset the device and enable SRIOV only for physical
|
|
* devices. Try to claim ownership on the device;
|
|
* if already taken, skip -- do not allow multiple PFs */
|
|
err = mlx4_get_ownership(dev);
|
|
if (err) {
|
|
if (err < 0)
|
|
return err;
|
|
else {
|
|
mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
atomic_set(&priv->opreq_count, 0);
|
|
INIT_WORK(&priv->opreq_task, mlx4_opreq_action);
|
|
|
|
/*
|
|
* Now reset the HCA before we touch the PCI capabilities or
|
|
* attempt a firmware command, since a boot ROM may have left
|
|
* the HCA in an undefined state.
|
|
*/
|
|
err = mlx4_reset(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to reset HCA, aborting\n");
|
|
goto err_sriov;
|
|
}
|
|
|
|
if (total_vfs) {
|
|
dev->flags = MLX4_FLAG_MASTER;
|
|
existing_vfs = pci_num_vf(pdev);
|
|
if (existing_vfs)
|
|
dev->flags |= MLX4_FLAG_SRIOV;
|
|
dev->persist->num_vfs = total_vfs;
|
|
}
|
|
}
|
|
|
|
/* on load remove any previous indication of internal error,
|
|
* device is up.
|
|
*/
|
|
dev->persist->state = MLX4_DEVICE_STATE_UP;
|
|
|
|
slave_start:
|
|
err = mlx4_cmd_init(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to init command interface, aborting\n");
|
|
goto err_sriov;
|
|
}
|
|
|
|
/* In slave functions, the communication channel must be initialized
|
|
* before posting commands. Also, init num_slaves before calling
|
|
* mlx4_init_hca */
|
|
if (mlx4_is_mfunc(dev)) {
|
|
if (mlx4_is_master(dev)) {
|
|
dev->num_slaves = MLX4_MAX_NUM_SLAVES;
|
|
|
|
} else {
|
|
dev->num_slaves = 0;
|
|
err = mlx4_multi_func_init(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to init slave mfunc interface, aborting\n");
|
|
goto err_cmd;
|
|
}
|
|
}
|
|
}
|
|
|
|
err = mlx4_init_fw(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to init fw, aborting.\n");
|
|
goto err_mfunc;
|
|
}
|
|
|
|
if (mlx4_is_master(dev)) {
|
|
/* when we hit the goto slave_start below, dev_cap already initialized */
|
|
if (!dev_cap) {
|
|
dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL);
|
|
|
|
if (!dev_cap) {
|
|
err = -ENOMEM;
|
|
goto err_fw;
|
|
}
|
|
|
|
err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
|
|
goto err_fw;
|
|
}
|
|
|
|
if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
|
|
goto err_fw;
|
|
|
|
if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
|
|
u64 dev_flags = mlx4_enable_sriov(dev, pdev,
|
|
total_vfs,
|
|
existing_vfs,
|
|
reset_flow);
|
|
|
|
mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
|
|
dev->flags = dev_flags;
|
|
if (!SRIOV_VALID_STATE(dev->flags)) {
|
|
mlx4_err(dev, "Invalid SRIOV state\n");
|
|
goto err_sriov;
|
|
}
|
|
err = mlx4_reset(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to reset HCA, aborting.\n");
|
|
goto err_sriov;
|
|
}
|
|
goto slave_start;
|
|
}
|
|
} else {
|
|
/* Legacy mode FW requires SRIOV to be enabled before
|
|
* doing QUERY_DEV_CAP, since max_eq's value is different if
|
|
* SRIOV is enabled.
|
|
*/
|
|
memset(dev_cap, 0, sizeof(*dev_cap));
|
|
err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
|
|
if (err) {
|
|
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
|
|
goto err_fw;
|
|
}
|
|
|
|
if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
|
|
goto err_fw;
|
|
}
|
|
}
|
|
|
|
err = mlx4_init_hca(dev);
|
|
if (err) {
|
|
if (err == -EACCES) {
|
|
/* Not primary Physical function
|
|
* Running in slave mode */
|
|
mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
|
|
/* We're not a PF */
|
|
if (dev->flags & MLX4_FLAG_SRIOV) {
|
|
if (!existing_vfs)
|
|
pci_disable_sriov(pdev);
|
|
if (mlx4_is_master(dev) && !reset_flow)
|
|
atomic_dec(&pf_loading);
|
|
dev->flags &= ~MLX4_FLAG_SRIOV;
|
|
}
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_free_ownership(dev);
|
|
dev->flags |= MLX4_FLAG_SLAVE;
|
|
dev->flags &= ~MLX4_FLAG_MASTER;
|
|
goto slave_start;
|
|
} else
|
|
goto err_fw;
|
|
}
|
|
|
|
if (mlx4_is_master(dev) && (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
|
|
u64 dev_flags = mlx4_enable_sriov(dev, pdev, total_vfs,
|
|
existing_vfs, reset_flow);
|
|
|
|
if ((dev->flags ^ dev_flags) & (MLX4_FLAG_MASTER | MLX4_FLAG_SLAVE)) {
|
|
mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_VHCR);
|
|
dev->flags = dev_flags;
|
|
err = mlx4_cmd_init(dev);
|
|
if (err) {
|
|
/* Only VHCR is cleaned up, so could still
|
|
* send FW commands
|
|
*/
|
|
mlx4_err(dev, "Failed to init VHCR command interface, aborting\n");
|
|
goto err_close;
|
|
}
|
|
} else {
|
|
dev->flags = dev_flags;
|
|
}
|
|
|
|
if (!SRIOV_VALID_STATE(dev->flags)) {
|
|
mlx4_err(dev, "Invalid SRIOV state\n");
|
|
goto err_close;
|
|
}
|
|
}
|
|
|
|
/* check if the device is functioning at its maximum possible speed.
|
|
* No return code for this call, just warn the user in case of PCI
|
|
* express device capabilities are under-satisfied by the bus.
|
|
*/
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_check_pcie_caps(dev);
|
|
|
|
/* In master functions, the communication channel must be initialized
|
|
* after obtaining its address from fw */
|
|
if (mlx4_is_master(dev)) {
|
|
int ib_ports = 0;
|
|
|
|
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
|
|
ib_ports++;
|
|
|
|
if (ib_ports &&
|
|
(num_vfs_argc > 1 || probe_vfs_argc > 1)) {
|
|
mlx4_err(dev,
|
|
"Invalid syntax of num_vfs/probe_vfs with IB port - single port VFs syntax is only supported when all ports are configured as ethernet\n");
|
|
err = -EINVAL;
|
|
goto err_close;
|
|
}
|
|
if (dev->caps.num_ports < 2 &&
|
|
num_vfs_argc > 1) {
|
|
err = -EINVAL;
|
|
mlx4_err(dev,
|
|
"Error: Trying to configure VFs on port 2, but HCA has only %d physical ports\n",
|
|
dev->caps.num_ports);
|
|
goto err_close;
|
|
}
|
|
memcpy(dev->persist->nvfs, nvfs, sizeof(dev->persist->nvfs));
|
|
|
|
for (i = 0;
|
|
i < sizeof(dev->persist->nvfs)/
|
|
sizeof(dev->persist->nvfs[0]); i++) {
|
|
unsigned j;
|
|
|
|
for (j = 0; j < dev->persist->nvfs[i]; ++sum, ++j) {
|
|
dev->dev_vfs[sum].min_port = i < 2 ? i + 1 : 1;
|
|
dev->dev_vfs[sum].n_ports = i < 2 ? 1 :
|
|
dev->caps.num_ports;
|
|
}
|
|
}
|
|
|
|
/* In master functions, the communication channel
|
|
* must be initialized after obtaining its address from fw
|
|
*/
|
|
err = mlx4_multi_func_init(dev);
|
|
if (err) {
|
|
mlx4_err(dev, "Failed to init master mfunc interface, aborting.\n");
|
|
goto err_close;
|
|
}
|
|
}
|
|
|
|
err = mlx4_alloc_eq_table(dev);
|
|
if (err)
|
|
goto err_master_mfunc;
|
|
|
|
priv->msix_ctl.pool_bm = 0;
|
|
mutex_init(&priv->msix_ctl.pool_lock);
|
|
|
|
mlx4_enable_msi_x(dev);
|
|
if ((mlx4_is_mfunc(dev)) &&
|
|
!(dev->flags & MLX4_FLAG_MSI_X)) {
|
|
err = -ENOSYS;
|
|
mlx4_err(dev, "INTx is not supported in multi-function mode, aborting\n");
|
|
goto err_free_eq;
|
|
}
|
|
|
|
if (!mlx4_is_slave(dev)) {
|
|
err = mlx4_init_steering(dev);
|
|
if (err)
|
|
goto err_disable_msix;
|
|
}
|
|
|
|
err = mlx4_setup_hca(dev);
|
|
if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
|
|
!mlx4_is_mfunc(dev)) {
|
|
dev->flags &= ~MLX4_FLAG_MSI_X;
|
|
dev->caps.num_comp_vectors = 1;
|
|
dev->caps.comp_pool = 0;
|
|
pci_disable_msix(pdev);
|
|
err = mlx4_setup_hca(dev);
|
|
}
|
|
|
|
if (err)
|
|
goto err_steer;
|
|
|
|
mlx4_init_quotas(dev);
|
|
/* When PF resources are ready arm its comm channel to enable
|
|
* getting commands
|
|
*/
|
|
if (mlx4_is_master(dev)) {
|
|
err = mlx4_ARM_COMM_CHANNEL(dev);
|
|
if (err) {
|
|
mlx4_err(dev, " Failed to arm comm channel eq: %x\n",
|
|
err);
|
|
goto err_steer;
|
|
}
|
|
}
|
|
|
|
for (port = 1; port <= dev->caps.num_ports; port++) {
|
|
err = mlx4_init_port_info(dev, port);
|
|
if (err)
|
|
goto err_port;
|
|
}
|
|
|
|
priv->v2p.port1 = 1;
|
|
priv->v2p.port2 = 2;
|
|
|
|
err = mlx4_register_device(dev);
|
|
if (err)
|
|
goto err_port;
|
|
|
|
mlx4_request_modules(dev);
|
|
|
|
mlx4_sense_init(dev);
|
|
mlx4_start_sense(dev);
|
|
|
|
priv->removed = 0;
|
|
|
|
if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
|
|
atomic_dec(&pf_loading);
|
|
|
|
kfree(dev_cap);
|
|
return 0;
|
|
|
|
err_port:
|
|
for (--port; port >= 1; --port)
|
|
mlx4_cleanup_port_info(&priv->port[port]);
|
|
|
|
mlx4_cleanup_counters_table(dev);
|
|
mlx4_cleanup_qp_table(dev);
|
|
mlx4_cleanup_srq_table(dev);
|
|
mlx4_cleanup_cq_table(dev);
|
|
mlx4_cmd_use_polling(dev);
|
|
mlx4_cleanup_eq_table(dev);
|
|
mlx4_cleanup_mcg_table(dev);
|
|
mlx4_cleanup_mr_table(dev);
|
|
mlx4_cleanup_xrcd_table(dev);
|
|
mlx4_cleanup_pd_table(dev);
|
|
mlx4_cleanup_uar_table(dev);
|
|
|
|
err_steer:
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_clear_steering(dev);
|
|
|
|
err_disable_msix:
|
|
if (dev->flags & MLX4_FLAG_MSI_X)
|
|
pci_disable_msix(pdev);
|
|
|
|
err_free_eq:
|
|
mlx4_free_eq_table(dev);
|
|
|
|
err_master_mfunc:
|
|
if (mlx4_is_master(dev)) {
|
|
mlx4_free_resource_tracker(dev, RES_TR_FREE_STRUCTS_ONLY);
|
|
mlx4_multi_func_cleanup(dev);
|
|
}
|
|
|
|
if (mlx4_is_slave(dev)) {
|
|
kfree(dev->caps.qp0_qkey);
|
|
kfree(dev->caps.qp0_tunnel);
|
|
kfree(dev->caps.qp0_proxy);
|
|
kfree(dev->caps.qp1_tunnel);
|
|
kfree(dev->caps.qp1_proxy);
|
|
}
|
|
|
|
err_close:
|
|
mlx4_close_hca(dev);
|
|
|
|
err_fw:
|
|
mlx4_close_fw(dev);
|
|
|
|
err_mfunc:
|
|
if (mlx4_is_slave(dev))
|
|
mlx4_multi_func_cleanup(dev);
|
|
|
|
err_cmd:
|
|
mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
|
|
|
|
err_sriov:
|
|
if (dev->flags & MLX4_FLAG_SRIOV && !existing_vfs) {
|
|
pci_disable_sriov(pdev);
|
|
dev->flags &= ~MLX4_FLAG_SRIOV;
|
|
}
|
|
|
|
if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
|
|
atomic_dec(&pf_loading);
|
|
|
|
kfree(priv->dev.dev_vfs);
|
|
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_free_ownership(dev);
|
|
|
|
kfree(dev_cap);
|
|
return err;
|
|
}
|
|
|
|
static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
|
|
struct mlx4_priv *priv)
|
|
{
|
|
int err;
|
|
int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
|
|
int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0};
|
|
const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = {
|
|
{2, 0, 0}, {0, 1, 2}, {0, 1, 2} };
|
|
unsigned total_vfs = 0;
|
|
unsigned int i;
|
|
|
|
pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
/* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS
|
|
* per port, we must limit the number of VFs to 63 (since their are
|
|
* 128 MACs)
|
|
*/
|
|
for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && i < num_vfs_argc;
|
|
total_vfs += nvfs[param_map[num_vfs_argc - 1][i]], i++) {
|
|
nvfs[param_map[num_vfs_argc - 1][i]] = num_vfs[i];
|
|
if (nvfs[i] < 0) {
|
|
dev_err(&pdev->dev, "num_vfs module parameter cannot be negative\n");
|
|
err = -EINVAL;
|
|
goto err_disable_pdev;
|
|
}
|
|
}
|
|
for (i = 0; i < sizeof(prb_vf)/sizeof(prb_vf[0]) && i < probe_vfs_argc;
|
|
i++) {
|
|
prb_vf[param_map[probe_vfs_argc - 1][i]] = probe_vf[i];
|
|
if (prb_vf[i] < 0 || prb_vf[i] > nvfs[i]) {
|
|
dev_err(&pdev->dev, "probe_vf module parameter cannot be negative or greater than num_vfs\n");
|
|
err = -EINVAL;
|
|
goto err_disable_pdev;
|
|
}
|
|
}
|
|
if (total_vfs >= MLX4_MAX_NUM_VF) {
|
|
dev_err(&pdev->dev,
|
|
"Requested more VF's (%d) than allowed (%d)\n",
|
|
total_vfs, MLX4_MAX_NUM_VF - 1);
|
|
err = -EINVAL;
|
|
goto err_disable_pdev;
|
|
}
|
|
|
|
for (i = 0; i < MLX4_MAX_PORTS; i++) {
|
|
if (nvfs[i] + nvfs[2] >= MLX4_MAX_NUM_VF_P_PORT) {
|
|
dev_err(&pdev->dev,
|
|
"Requested more VF's (%d) for port (%d) than allowed (%d)\n",
|
|
nvfs[i] + nvfs[2], i + 1,
|
|
MLX4_MAX_NUM_VF_P_PORT - 1);
|
|
err = -EINVAL;
|
|
goto err_disable_pdev;
|
|
}
|
|
}
|
|
|
|
/* Check for BARs. */
|
|
if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
|
|
!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
|
|
dev_err(&pdev->dev, "Missing DCS, aborting (driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
|
|
pci_dev_data, pci_resource_flags(pdev, 0));
|
|
err = -ENODEV;
|
|
goto err_disable_pdev;
|
|
}
|
|
if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
|
|
dev_err(&pdev->dev, "Missing UAR, aborting\n");
|
|
err = -ENODEV;
|
|
goto err_disable_pdev;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, DRV_NAME);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
|
|
goto err_disable_pdev;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n");
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n");
|
|
goto err_release_regions;
|
|
}
|
|
}
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_warn(&pdev->dev, "Warning: couldn't set 64-bit consistent PCI DMA mask\n");
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, aborting\n");
|
|
goto err_release_regions;
|
|
}
|
|
}
|
|
|
|
/* Allow large DMA segments, up to the firmware limit of 1 GB */
|
|
dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
|
|
/* Detect if this device is a virtual function */
|
|
if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
|
|
/* When acting as pf, we normally skip vfs unless explicitly
|
|
* requested to probe them.
|
|
*/
|
|
if (total_vfs) {
|
|
unsigned vfs_offset = 0;
|
|
|
|
for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) &&
|
|
vfs_offset + nvfs[i] < extended_func_num(pdev);
|
|
vfs_offset += nvfs[i], i++)
|
|
;
|
|
if (i == sizeof(nvfs)/sizeof(nvfs[0])) {
|
|
err = -ENODEV;
|
|
goto err_release_regions;
|
|
}
|
|
if ((extended_func_num(pdev) - vfs_offset)
|
|
> prb_vf[i]) {
|
|
dev_warn(&pdev->dev, "Skipping virtual function:%d\n",
|
|
extended_func_num(pdev));
|
|
err = -ENODEV;
|
|
goto err_release_regions;
|
|
}
|
|
}
|
|
}
|
|
|
|
err = mlx4_catas_init(&priv->dev);
|
|
if (err)
|
|
goto err_release_regions;
|
|
|
|
err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 0);
|
|
if (err)
|
|
goto err_catas;
|
|
|
|
return 0;
|
|
|
|
err_catas:
|
|
mlx4_catas_end(&priv->dev);
|
|
|
|
err_release_regions:
|
|
pci_release_regions(pdev);
|
|
|
|
err_disable_pdev:
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct mlx4_priv *priv;
|
|
struct mlx4_dev *dev;
|
|
int ret;
|
|
|
|
printk_once(KERN_INFO "%s", mlx4_version);
|
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
dev = &priv->dev;
|
|
dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL);
|
|
if (!dev->persist) {
|
|
kfree(priv);
|
|
return -ENOMEM;
|
|
}
|
|
dev->persist->pdev = pdev;
|
|
dev->persist->dev = dev;
|
|
pci_set_drvdata(pdev, dev->persist);
|
|
priv->pci_dev_data = id->driver_data;
|
|
mutex_init(&dev->persist->device_state_mutex);
|
|
mutex_init(&dev->persist->interface_state_mutex);
|
|
|
|
ret = __mlx4_init_one(pdev, id->driver_data, priv);
|
|
if (ret) {
|
|
kfree(dev->persist);
|
|
kfree(priv);
|
|
} else {
|
|
pci_save_state(pdev);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void mlx4_clean_dev(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_dev_persistent *persist = dev->persist;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
unsigned long flags = (dev->flags & RESET_PERSIST_MASK_FLAGS);
|
|
|
|
memset(priv, 0, sizeof(*priv));
|
|
priv->dev.persist = persist;
|
|
priv->dev.flags = flags;
|
|
}
|
|
|
|
static void mlx4_unload_one(struct pci_dev *pdev)
|
|
{
|
|
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
|
|
struct mlx4_dev *dev = persist->dev;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int pci_dev_data;
|
|
int p, i;
|
|
|
|
if (priv->removed)
|
|
return;
|
|
|
|
/* saving current ports type for further use */
|
|
for (i = 0; i < dev->caps.num_ports; i++) {
|
|
dev->persist->curr_port_type[i] = dev->caps.port_type[i + 1];
|
|
dev->persist->curr_port_poss_type[i] = dev->caps.
|
|
possible_type[i + 1];
|
|
}
|
|
|
|
pci_dev_data = priv->pci_dev_data;
|
|
|
|
mlx4_stop_sense(dev);
|
|
mlx4_unregister_device(dev);
|
|
|
|
for (p = 1; p <= dev->caps.num_ports; p++) {
|
|
mlx4_cleanup_port_info(&priv->port[p]);
|
|
mlx4_CLOSE_PORT(dev, p);
|
|
}
|
|
|
|
if (mlx4_is_master(dev))
|
|
mlx4_free_resource_tracker(dev,
|
|
RES_TR_FREE_SLAVES_ONLY);
|
|
|
|
mlx4_cleanup_counters_table(dev);
|
|
mlx4_cleanup_qp_table(dev);
|
|
mlx4_cleanup_srq_table(dev);
|
|
mlx4_cleanup_cq_table(dev);
|
|
mlx4_cmd_use_polling(dev);
|
|
mlx4_cleanup_eq_table(dev);
|
|
mlx4_cleanup_mcg_table(dev);
|
|
mlx4_cleanup_mr_table(dev);
|
|
mlx4_cleanup_xrcd_table(dev);
|
|
mlx4_cleanup_pd_table(dev);
|
|
|
|
if (mlx4_is_master(dev))
|
|
mlx4_free_resource_tracker(dev,
|
|
RES_TR_FREE_STRUCTS_ONLY);
|
|
|
|
iounmap(priv->kar);
|
|
mlx4_uar_free(dev, &priv->driver_uar);
|
|
mlx4_cleanup_uar_table(dev);
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_clear_steering(dev);
|
|
mlx4_free_eq_table(dev);
|
|
if (mlx4_is_master(dev))
|
|
mlx4_multi_func_cleanup(dev);
|
|
mlx4_close_hca(dev);
|
|
mlx4_close_fw(dev);
|
|
if (mlx4_is_slave(dev))
|
|
mlx4_multi_func_cleanup(dev);
|
|
mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
|
|
|
|
if (dev->flags & MLX4_FLAG_MSI_X)
|
|
pci_disable_msix(pdev);
|
|
|
|
if (!mlx4_is_slave(dev))
|
|
mlx4_free_ownership(dev);
|
|
|
|
kfree(dev->caps.qp0_qkey);
|
|
kfree(dev->caps.qp0_tunnel);
|
|
kfree(dev->caps.qp0_proxy);
|
|
kfree(dev->caps.qp1_tunnel);
|
|
kfree(dev->caps.qp1_proxy);
|
|
kfree(dev->dev_vfs);
|
|
|
|
mlx4_clean_dev(dev);
|
|
priv->pci_dev_data = pci_dev_data;
|
|
priv->removed = 1;
|
|
}
|
|
|
|
static void mlx4_remove_one(struct pci_dev *pdev)
|
|
{
|
|
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
|
|
struct mlx4_dev *dev = persist->dev;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int active_vfs = 0;
|
|
|
|
mutex_lock(&persist->interface_state_mutex);
|
|
persist->interface_state |= MLX4_INTERFACE_STATE_DELETION;
|
|
mutex_unlock(&persist->interface_state_mutex);
|
|
|
|
/* Disabling SR-IOV is not allowed while there are active vf's */
|
|
if (mlx4_is_master(dev) && dev->flags & MLX4_FLAG_SRIOV) {
|
|
active_vfs = mlx4_how_many_lives_vf(dev);
|
|
if (active_vfs) {
|
|
pr_warn("Removing PF when there are active VF's !!\n");
|
|
pr_warn("Will not disable SR-IOV.\n");
|
|
}
|
|
}
|
|
|
|
/* device marked to be under deletion running now without the lock
|
|
* letting other tasks to be terminated
|
|
*/
|
|
if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
|
|
mlx4_unload_one(pdev);
|
|
else
|
|
mlx4_info(dev, "%s: interface is down\n", __func__);
|
|
mlx4_catas_end(dev);
|
|
if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) {
|
|
mlx4_warn(dev, "Disabling SR-IOV\n");
|
|
pci_disable_sriov(pdev);
|
|
}
|
|
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
kfree(dev->persist);
|
|
kfree(priv);
|
|
pci_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
static int restore_current_port_types(struct mlx4_dev *dev,
|
|
enum mlx4_port_type *types,
|
|
enum mlx4_port_type *poss_types)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int err, i;
|
|
|
|
mlx4_stop_sense(dev);
|
|
|
|
mutex_lock(&priv->port_mutex);
|
|
for (i = 0; i < dev->caps.num_ports; i++)
|
|
dev->caps.possible_type[i + 1] = poss_types[i];
|
|
err = mlx4_change_port_types(dev, types);
|
|
mlx4_start_sense(dev);
|
|
mutex_unlock(&priv->port_mutex);
|
|
|
|
return err;
|
|
}
|
|
|
|
int mlx4_restart_one(struct pci_dev *pdev)
|
|
{
|
|
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
|
|
struct mlx4_dev *dev = persist->dev;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
|
|
int pci_dev_data, err, total_vfs;
|
|
|
|
pci_dev_data = priv->pci_dev_data;
|
|
total_vfs = dev->persist->num_vfs;
|
|
memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
|
|
|
|
mlx4_unload_one(pdev);
|
|
err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1);
|
|
if (err) {
|
|
mlx4_err(dev, "%s: ERROR: mlx4_load_one failed, pci_name=%s, err=%d\n",
|
|
__func__, pci_name(pdev), err);
|
|
return err;
|
|
}
|
|
|
|
err = restore_current_port_types(dev, dev->persist->curr_port_type,
|
|
dev->persist->curr_port_poss_type);
|
|
if (err)
|
|
mlx4_err(dev, "could not restore original port types (%d)\n",
|
|
err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const struct pci_device_id mlx4_pci_table[] = {
|
|
/* MT25408 "Hermon" SDR */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25408 "Hermon" DDR */
|
|
{ PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25408 "Hermon" QDR */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25408 "Hermon" DDR PCIe gen2 */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25408 "Hermon" QDR PCIe gen2 */
|
|
{ PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25408 "Hermon" EN 10GigE */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25408 "Hermon" EN 10GigE PCIe gen2 */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25458 ConnectX EN 10GBASE-T 10GigE */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
|
|
{ PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT26468 ConnectX EN 10GigE PCIe gen2*/
|
|
{ PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
|
|
{ PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT26478 ConnectX2 40GigE PCIe gen2 */
|
|
{ PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
|
|
/* MT25400 Family [ConnectX-2 Virtual Function] */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
|
|
/* MT27500 Family [ConnectX-3] */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1003), 0 },
|
|
/* MT27500 Family [ConnectX-3 Virtual Function] */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
|
|
{ PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
|
|
{ PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
|
|
{ 0, }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
|
|
|
|
static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
|
|
pci_channel_state_t state)
|
|
{
|
|
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
|
|
|
|
mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n");
|
|
mlx4_enter_error_state(persist);
|
|
|
|
mutex_lock(&persist->interface_state_mutex);
|
|
if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
|
|
mlx4_unload_one(pdev);
|
|
|
|
mutex_unlock(&persist->interface_state_mutex);
|
|
if (state == pci_channel_io_perm_failure)
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
|
|
pci_disable_device(pdev);
|
|
return PCI_ERS_RESULT_NEED_RESET;
|
|
}
|
|
|
|
static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
|
|
{
|
|
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
|
|
struct mlx4_dev *dev = persist->dev;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
int ret;
|
|
int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
|
|
int total_vfs;
|
|
|
|
mlx4_err(dev, "mlx4_pci_slot_reset was called\n");
|
|
ret = pci_enable_device(pdev);
|
|
if (ret) {
|
|
mlx4_err(dev, "Can not re-enable device, ret=%d\n", ret);
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
pci_restore_state(pdev);
|
|
pci_save_state(pdev);
|
|
|
|
total_vfs = dev->persist->num_vfs;
|
|
memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
|
|
|
|
mutex_lock(&persist->interface_state_mutex);
|
|
if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) {
|
|
ret = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs,
|
|
priv, 1);
|
|
if (ret) {
|
|
mlx4_err(dev, "%s: mlx4_load_one failed, ret=%d\n",
|
|
__func__, ret);
|
|
goto end;
|
|
}
|
|
|
|
ret = restore_current_port_types(dev, dev->persist->
|
|
curr_port_type, dev->persist->
|
|
curr_port_poss_type);
|
|
if (ret)
|
|
mlx4_err(dev, "could not restore original port types (%d)\n", ret);
|
|
}
|
|
end:
|
|
mutex_unlock(&persist->interface_state_mutex);
|
|
|
|
return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
|
|
}
|
|
|
|
static void mlx4_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
|
|
|
|
mlx4_info(persist->dev, "mlx4_shutdown was called\n");
|
|
mutex_lock(&persist->interface_state_mutex);
|
|
if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
|
|
mlx4_unload_one(pdev);
|
|
mutex_unlock(&persist->interface_state_mutex);
|
|
}
|
|
|
|
static const struct pci_error_handlers mlx4_err_handler = {
|
|
.error_detected = mlx4_pci_err_detected,
|
|
.slot_reset = mlx4_pci_slot_reset,
|
|
};
|
|
|
|
static struct pci_driver mlx4_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = mlx4_pci_table,
|
|
.probe = mlx4_init_one,
|
|
.shutdown = mlx4_shutdown,
|
|
.remove = mlx4_remove_one,
|
|
.err_handler = &mlx4_err_handler,
|
|
};
|
|
|
|
static int __init mlx4_verify_params(void)
|
|
{
|
|
if ((log_num_mac < 0) || (log_num_mac > 7)) {
|
|
pr_warn("mlx4_core: bad num_mac: %d\n", log_num_mac);
|
|
return -1;
|
|
}
|
|
|
|
if (log_num_vlan != 0)
|
|
pr_warn("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
|
|
MLX4_LOG_NUM_VLANS);
|
|
|
|
if (use_prio != 0)
|
|
pr_warn("mlx4_core: use_prio - obsolete module param, ignored\n");
|
|
|
|
if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
|
|
pr_warn("mlx4_core: bad log_mtts_per_seg: %d\n",
|
|
log_mtts_per_seg);
|
|
return -1;
|
|
}
|
|
|
|
/* Check if module param for ports type has legal combination */
|
|
if (port_type_array[0] == false && port_type_array[1] == true) {
|
|
pr_warn("Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
|
|
port_type_array[0] = true;
|
|
}
|
|
|
|
if (mlx4_log_num_mgm_entry_size < -7 ||
|
|
(mlx4_log_num_mgm_entry_size > 0 &&
|
|
(mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
|
|
mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE))) {
|
|
pr_warn("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not in legal range (-7..0 or %d..%d)\n",
|
|
mlx4_log_num_mgm_entry_size,
|
|
MLX4_MIN_MGM_LOG_ENTRY_SIZE,
|
|
MLX4_MAX_MGM_LOG_ENTRY_SIZE);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init mlx4_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (mlx4_verify_params())
|
|
return -EINVAL;
|
|
|
|
|
|
mlx4_wq = create_singlethread_workqueue("mlx4");
|
|
if (!mlx4_wq)
|
|
return -ENOMEM;
|
|
|
|
ret = pci_register_driver(&mlx4_driver);
|
|
if (ret < 0)
|
|
destroy_workqueue(mlx4_wq);
|
|
return ret < 0 ? ret : 0;
|
|
}
|
|
|
|
static void __exit mlx4_cleanup(void)
|
|
{
|
|
pci_unregister_driver(&mlx4_driver);
|
|
destroy_workqueue(mlx4_wq);
|
|
}
|
|
|
|
module_init(mlx4_init);
|
|
module_exit(mlx4_cleanup);
|