| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Yevgeny Petrilin | 3738 | 21.66% | 4 | 3.51% |
| Jack Morgenstein | 3507 | 20.32% | 31 | 27.19% |
| Eli Cohen | 1822 | 10.56% | 1 | 0.88% |
| Rony Efraim | 1450 | 8.40% | 8 | 7.02% |
| Ido Shamay | 1405 | 8.14% | 7 | 6.14% |
| Roland Dreier | 1309 | 7.58% | 3 | 2.63% |
| Yishai Hadas | 1159 | 6.72% | 6 | 5.26% |
| Matan Barak | 924 | 5.35% | 8 | 7.02% |
| Eran Ben Elisha | 446 | 2.58% | 2 | 1.75% |
| Moshe Shemesh | 390 | 2.26% | 2 | 1.75% |
| Eugenia Emantayev | 294 | 1.70% | 5 | 4.39% |
| Or Gerlitz | 146 | 0.85% | 4 | 3.51% |
| Hans Westgaard Ry | 113 | 0.65% | 1 | 0.88% |
| Kleber Sacilotto de Souza | 96 | 0.56% | 1 | 0.88% |
| Hadar Hen Zion | 75 | 0.43% | 1 | 0.88% |
| Marcel Apfelbaum | 74 | 0.43% | 1 | 0.88% |
| Eyal Perry | 52 | 0.30% | 1 | 0.88% |
| Shani Michaelli | 37 | 0.21% | 1 | 0.88% |
| Moni Shoua | 37 | 0.21% | 1 | 0.88% |
| Saeed Mahameed | 37 | 0.21% | 2 | 1.75% |
| Dotan Barak | 27 | 0.16% | 2 | 1.75% |
| Yury Norov | 20 | 0.12% | 1 | 0.88% |
| Benjamin Poirier | 19 | 0.11% | 1 | 0.88% |
| Joe Perches | 17 | 0.10% | 1 | 0.88% |
| Colin Ian King | 10 | 0.06% | 2 | 1.75% |
| Kees Cook | 8 | 0.05% | 2 | 1.75% |
| Sucheta Chakraborty | 7 | 0.04% | 1 | 0.88% |
| Romain Perier | 7 | 0.04% | 1 | 0.88% |
| Carol L Soto | 6 | 0.03% | 2 | 1.75% |
| Dan Carpenter | 5 | 0.03% | 1 | 0.88% |
| Jakub Kiciński | 4 | 0.02% | 2 | 1.75% |
| Paul Gortmaker | 3 | 0.02% | 1 | 0.88% |
| Stephen Hemminger | 3 | 0.02% | 1 | 0.88% |
| Tejun Heo | 3 | 0.02% | 1 | 0.88% |
| Wengang Wang | 2 | 0.01% | 1 | 0.88% |
| Masanari Iida | 2 | 0.01% | 1 | 0.88% |
| Jingoo Han | 2 | 0.01% | 1 | 0.88% |
| Rasmus Villemoes | 1 | 0.01% | 1 | 0.88% |
| Amir Vadai | 1 | 0.01% | 1 | 0.88% |
| Total | 17258 | 114 |
/* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/sched.h> #include <linux/slab.h> #include <linux/export.h> #include <linux/pci.h> #include <linux/errno.h> #include <linux/mlx4/cmd.h> #include <linux/mlx4/device.h> #include <linux/semaphore.h> #include <rdma/ib_smi.h> #include <linux/delay.h> #include <linux/etherdevice.h> #include <asm/io.h> #include "mlx4.h" #include "fw.h" #include "fw_qos.h" #include "mlx4_stats.h" #define CMD_POLL_TOKEN 0xffff #define INBOX_MASK 0xffffffffffffff00ULL #define CMD_CHAN_VER 1 #define CMD_CHAN_IF_REV 1 enum { /* command completed successfully: */ CMD_STAT_OK = 0x00, /* Internal error (such as a bus error) occurred while processing command: */ CMD_STAT_INTERNAL_ERR = 0x01, /* Operation/command not supported or opcode modifier not supported: */ CMD_STAT_BAD_OP = 0x02, /* Parameter not supported or parameter out of range: */ CMD_STAT_BAD_PARAM = 0x03, /* System not enabled or bad system state: */ CMD_STAT_BAD_SYS_STATE = 0x04, /* Attempt to access reserved or unallocaterd resource: */ CMD_STAT_BAD_RESOURCE = 0x05, /* Requested resource is currently executing a command, or is otherwise busy: */ CMD_STAT_RESOURCE_BUSY = 0x06, /* Required capability exceeds device limits: */ CMD_STAT_EXCEED_LIM = 0x08, /* Resource is not in the appropriate state or ownership: */ CMD_STAT_BAD_RES_STATE = 0x09, /* Index out of range: */ CMD_STAT_BAD_INDEX = 0x0a, /* FW image corrupted: */ CMD_STAT_BAD_NVMEM = 0x0b, /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */ CMD_STAT_ICM_ERROR = 0x0c, /* Attempt to modify a QP/EE which is not in the presumed state: */ CMD_STAT_BAD_QP_STATE = 0x10, /* Bad segment parameters (Address/Size): */ CMD_STAT_BAD_SEG_PARAM = 0x20, /* Memory Region has Memory Windows bound to: */ CMD_STAT_REG_BOUND = 0x21, /* HCA local attached memory not present: */ CMD_STAT_LAM_NOT_PRE = 0x22, /* Bad management packet (silently discarded): */ CMD_STAT_BAD_PKT = 0x30, /* More outstanding CQEs in CQ than new CQ size: */ CMD_STAT_BAD_SIZE = 0x40, /* Multi Function device support required: */ CMD_STAT_MULTI_FUNC_REQ = 0x50, }; enum { HCR_IN_PARAM_OFFSET = 0x00, HCR_IN_MODIFIER_OFFSET = 0x08, HCR_OUT_PARAM_OFFSET = 0x0c, HCR_TOKEN_OFFSET = 0x14, HCR_STATUS_OFFSET = 0x18, HCR_OPMOD_SHIFT = 12, HCR_T_BIT = 21, HCR_E_BIT = 22, HCR_GO_BIT = 23 }; enum { GO_BIT_TIMEOUT_MSECS = 10000 }; enum mlx4_vlan_transition { MLX4_VLAN_TRANSITION_VST_VST = 0, MLX4_VLAN_TRANSITION_VST_VGT = 1, MLX4_VLAN_TRANSITION_VGT_VST = 2, MLX4_VLAN_TRANSITION_VGT_VGT = 3, }; struct mlx4_cmd_context { struct completion done; int result; int next; u64 out_param; u16 token; u8 fw_status; }; static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, struct mlx4_vhcr_cmd *in_vhcr); static int mlx4_status_to_errno(u8 status) { static const int trans_table[] = { [CMD_STAT_INTERNAL_ERR] = -EIO, [CMD_STAT_BAD_OP] = -EPERM, [CMD_STAT_BAD_PARAM] = -EINVAL, [CMD_STAT_BAD_SYS_STATE] = -ENXIO, [CMD_STAT_BAD_RESOURCE] = -EBADF, [CMD_STAT_RESOURCE_BUSY] = -EBUSY, [CMD_STAT_EXCEED_LIM] = -ENOMEM, [CMD_STAT_BAD_RES_STATE] = -EBADF, [CMD_STAT_BAD_INDEX] = -EBADF, [CMD_STAT_BAD_NVMEM] = -EFAULT, [CMD_STAT_ICM_ERROR] = -ENFILE, [CMD_STAT_BAD_QP_STATE] = -EINVAL, [CMD_STAT_BAD_SEG_PARAM] = -EFAULT, [CMD_STAT_REG_BOUND] = -EBUSY, [CMD_STAT_LAM_NOT_PRE] = -EAGAIN, [CMD_STAT_BAD_PKT] = -EINVAL, [CMD_STAT_BAD_SIZE] = -ENOMEM, [CMD_STAT_MULTI_FUNC_REQ] = -EACCES, }; if (status >= ARRAY_SIZE(trans_table) || (status != CMD_STAT_OK && trans_table[status] == 0)) return -EIO; return trans_table[status]; } static u8 mlx4_errno_to_status(int errno) { switch (errno) { case -EPERM: return CMD_STAT_BAD_OP; case -EINVAL: return CMD_STAT_BAD_PARAM; case -ENXIO: return CMD_STAT_BAD_SYS_STATE; case -EBUSY: return CMD_STAT_RESOURCE_BUSY; case -ENOMEM: return CMD_STAT_EXCEED_LIM; case -ENFILE: return CMD_STAT_ICM_ERROR; default: return CMD_STAT_INTERNAL_ERR; } } static int mlx4_internal_err_ret_value(struct mlx4_dev *dev, u16 op, u8 op_modifier) { switch (op) { case MLX4_CMD_UNMAP_ICM: case MLX4_CMD_UNMAP_ICM_AUX: case MLX4_CMD_UNMAP_FA: case MLX4_CMD_2RST_QP: case MLX4_CMD_HW2SW_EQ: case MLX4_CMD_HW2SW_CQ: case MLX4_CMD_HW2SW_SRQ: case MLX4_CMD_HW2SW_MPT: case MLX4_CMD_CLOSE_HCA: case MLX4_QP_FLOW_STEERING_DETACH: case MLX4_CMD_FREE_RES: case MLX4_CMD_CLOSE_PORT: return CMD_STAT_OK; case MLX4_CMD_QP_ATTACH: /* On Detach case return success */ if (op_modifier == 0) return CMD_STAT_OK; return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); default: return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); } } static int mlx4_closing_cmd_fatal_error(u16 op, u8 fw_status) { /* Any error during the closing commands below is considered fatal */ if (op == MLX4_CMD_CLOSE_HCA || op == MLX4_CMD_HW2SW_EQ || op == MLX4_CMD_HW2SW_CQ || op == MLX4_CMD_2RST_QP || op == MLX4_CMD_HW2SW_SRQ || op == MLX4_CMD_SYNC_TPT || op == MLX4_CMD_UNMAP_ICM || op == MLX4_CMD_UNMAP_ICM_AUX || op == MLX4_CMD_UNMAP_FA) return 1; /* Error on MLX4_CMD_HW2SW_MPT is fatal except when fw status equals * CMD_STAT_REG_BOUND. * This status indicates that memory region has memory windows bound to it * which may result from invalid user space usage and is not fatal. */ if (op == MLX4_CMD_HW2SW_MPT && fw_status != CMD_STAT_REG_BOUND) return 1; return 0; } static int mlx4_cmd_reset_flow(struct mlx4_dev *dev, u16 op, u8 op_modifier, int err) { /* Only if reset flow is really active return code is based on * command, otherwise current error code is returned. */ if (mlx4_internal_err_reset) { mlx4_enter_error_state(dev->persist); err = mlx4_internal_err_ret_value(dev, op, op_modifier); } return err; } static int comm_pending(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); u32 status = readl(&priv->mfunc.comm->slave_read); return (swab32(status) >> 31) != priv->cmd.comm_toggle; } static int mlx4_comm_cmd_post(struct mlx4_dev *dev, u8 cmd, u16 param) { struct mlx4_priv *priv = mlx4_priv(dev); u32 val; /* To avoid writing to unknown addresses after the device state was * changed to internal error and the function was rest, * check the INTERNAL_ERROR flag which is updated under * device_state_mutex lock. */ mutex_lock(&dev->persist->device_state_mutex); if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { mutex_unlock(&dev->persist->device_state_mutex); return -EIO; } priv->cmd.comm_toggle ^= 1; val = param | (cmd << 16) | (priv->cmd.comm_toggle << 31); __raw_writel((__force u32) cpu_to_be32(val), &priv->mfunc.comm->slave_write); mutex_unlock(&dev->persist->device_state_mutex); return 0; } static int mlx4_comm_cmd_poll(struct mlx4_dev *dev, u8 cmd, u16 param, unsigned long timeout) { struct mlx4_priv *priv = mlx4_priv(dev); unsigned long end; int err = 0; int ret_from_pending = 0; /* First, verify that the master reports correct status */ if (comm_pending(dev)) { mlx4_warn(dev, "Communication channel is not idle - my toggle is %d (cmd:0x%x)\n", priv->cmd.comm_toggle, cmd); return -EAGAIN; } /* Write command */ down(&priv->cmd.poll_sem); if (mlx4_comm_cmd_post(dev, cmd, param)) { /* Only in case the device state is INTERNAL_ERROR, * mlx4_comm_cmd_post returns with an error */ err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); goto out; } end = msecs_to_jiffies(timeout) + jiffies; while (comm_pending(dev) && time_before(jiffies, end)) cond_resched(); ret_from_pending = comm_pending(dev); if (ret_from_pending) { /* check if the slave is trying to boot in the middle of * FLR process. The only non-zero result in the RESET command * is MLX4_DELAY_RESET_SLAVE*/ if ((MLX4_COMM_CMD_RESET == cmd)) { err = MLX4_DELAY_RESET_SLAVE; goto out; } else { mlx4_warn(dev, "Communication channel command 0x%x timed out\n", cmd); err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); } } if (err) mlx4_enter_error_state(dev->persist); out: up(&priv->cmd.poll_sem); return err; } static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 vhcr_cmd, u16 param, u16 op, unsigned long timeout) { struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; struct mlx4_cmd_context *context; unsigned long end; int err = 0; down(&cmd->event_sem); spin_lock(&cmd->context_lock); BUG_ON(cmd->free_head < 0); context = &cmd->context[cmd->free_head]; context->token += cmd->token_mask + 1; cmd->free_head = context->next; spin_unlock(&cmd->context_lock); reinit_completion(&context->done); if (mlx4_comm_cmd_post(dev, vhcr_cmd, param)) { /* Only in case the device state is INTERNAL_ERROR, * mlx4_comm_cmd_post returns with an error */ err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); goto out; } if (!wait_for_completion_timeout(&context->done, msecs_to_jiffies(timeout))) { mlx4_warn(dev, "communication channel command 0x%x (op=0x%x) timed out\n", vhcr_cmd, op); goto out_reset; } err = context->result; if (err && context->fw_status != CMD_STAT_MULTI_FUNC_REQ) { mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", vhcr_cmd, context->fw_status); if (mlx4_closing_cmd_fatal_error(op, context->fw_status)) goto out_reset; } /* wait for comm channel ready * this is necessary for prevention the race * when switching between event to polling mode * Skipping this section in case the device is in FATAL_ERROR state, * In this state, no commands are sent via the comm channel until * the device has returned from reset. */ if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { end = msecs_to_jiffies(timeout) + jiffies; while (comm_pending(dev) && time_before(jiffies, end)) cond_resched(); } goto out; out_reset: err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); mlx4_enter_error_state(dev->persist); out: spin_lock(&cmd->context_lock); context->next = cmd->free_head; cmd->free_head = context - cmd->context; spin_unlock(&cmd->context_lock); up(&cmd->event_sem); return err; } int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param, u16 op, unsigned long timeout) { if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); if (mlx4_priv(dev)->cmd.use_events) return mlx4_comm_cmd_wait(dev, cmd, param, op, timeout); return mlx4_comm_cmd_poll(dev, cmd, param, timeout); } static int cmd_pending(struct mlx4_dev *dev) { u32 status; if (pci_channel_offline(dev->persist->pdev)) return -EIO; status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET); return (status & swab32(1 << HCR_GO_BIT)) || (mlx4_priv(dev)->cmd.toggle == !!(status & swab32(1 << HCR_T_BIT))); } static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param, u32 in_modifier, u8 op_modifier, u16 op, u16 token, int event) { struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; u32 __iomem *hcr = cmd->hcr; int ret = -EIO; unsigned long end; mutex_lock(&dev->persist->device_state_mutex); /* To avoid writing to unknown addresses after the device state was * changed to internal error and the chip was reset, * check the INTERNAL_ERROR flag which is updated under * device_state_mutex lock. */ if (pci_channel_offline(dev->persist->pdev) || (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { /* * Device is going through error recovery * and cannot accept commands. */ goto out; } end = jiffies; if (event) end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS); while (cmd_pending(dev)) { if (pci_channel_offline(dev->persist->pdev)) { /* * Device is going through error recovery * and cannot accept commands. */ goto out; } if (time_after_eq(jiffies, end)) { mlx4_err(dev, "%s:cmd_pending failed\n", __func__); goto out; } cond_resched(); } /* * We use writel (instead of something like memcpy_toio) * because writes of less than 32 bits to the HCR don't work * (and some architectures such as ia64 implement memcpy_toio * in terms of writeb). */ __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0); __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1); __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2); __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3); __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4); __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5); /* __raw_writel may not order writes. */ wmb(); __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | (cmd->toggle << HCR_T_BIT) | (event ? (1 << HCR_E_BIT) : 0) | (op_modifier << HCR_OPMOD_SHIFT) | op), hcr + 6); cmd->toggle = cmd->toggle ^ 1; ret = 0; out: if (ret) mlx4_warn(dev, "Could not post command 0x%x: ret=%d, in_param=0x%llx, in_mod=0x%x, op_mod=0x%x\n", op, ret, in_param, in_modifier, op_modifier); mutex_unlock(&dev->persist->device_state_mutex); return ret; } static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_vhcr_cmd *vhcr = priv->mfunc.vhcr; int ret; mutex_lock(&priv->cmd.slave_cmd_mutex); vhcr->in_param = cpu_to_be64(in_param); vhcr->out_param = out_param ? cpu_to_be64(*out_param) : 0; vhcr->in_modifier = cpu_to_be32(in_modifier); vhcr->opcode = cpu_to_be16((((u16) op_modifier) << 12) | (op & 0xfff)); vhcr->token = cpu_to_be16(CMD_POLL_TOKEN); vhcr->status = 0; vhcr->flags = !!(priv->cmd.use_events) << 6; if (mlx4_is_master(dev)) { ret = mlx4_master_process_vhcr(dev, dev->caps.function, vhcr); if (!ret) { if (out_is_imm) { if (out_param) *out_param = be64_to_cpu(vhcr->out_param); else { mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", op); vhcr->status = CMD_STAT_BAD_PARAM; } } ret = mlx4_status_to_errno(vhcr->status); } if (ret && dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) ret = mlx4_internal_err_ret_value(dev, op, op_modifier); } else { ret = mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_POST, 0, op, MLX4_COMM_TIME + timeout); if (!ret) { if (out_is_imm) { if (out_param) *out_param = be64_to_cpu(vhcr->out_param); else { mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", op); vhcr->status = CMD_STAT_BAD_PARAM; } } ret = mlx4_status_to_errno(vhcr->status); } else { if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) ret = mlx4_internal_err_ret_value(dev, op, op_modifier); else mlx4_err(dev, "failed execution of VHCR_POST command opcode 0x%x\n", op); } } mutex_unlock(&priv->cmd.slave_cmd_mutex); return ret; } static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { struct mlx4_priv *priv = mlx4_priv(dev); void __iomem *hcr = priv->cmd.hcr; int err = 0; unsigned long end; u32 stat; down(&priv->cmd.poll_sem); if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { /* * Device is going through error recovery * and cannot accept commands. */ err = mlx4_internal_err_ret_value(dev, op, op_modifier); goto out; } if (out_is_imm && !out_param) { mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", op); err = -EINVAL; goto out; } err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0); if (err) goto out_reset; end = msecs_to_jiffies(timeout) + jiffies; while (cmd_pending(dev) && time_before(jiffies, end)) { if (pci_channel_offline(dev->persist->pdev)) { /* * Device is going through error recovery * and cannot accept commands. */ err = -EIO; goto out_reset; } if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { err = mlx4_internal_err_ret_value(dev, op, op_modifier); goto out; } cond_resched(); } if (cmd_pending(dev)) { mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n", op); err = -EIO; goto out_reset; } if (out_is_imm) *out_param = (u64) be32_to_cpu((__force __be32) __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 | (u64) be32_to_cpu((__force __be32) __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4)); stat = be32_to_cpu((__force __be32) __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24; err = mlx4_status_to_errno(stat); if (err) { mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", op, stat); if (mlx4_closing_cmd_fatal_error(op, stat)) goto out_reset; goto out; } out_reset: if (err) err = mlx4_cmd_reset_flow(dev, op, op_modifier, err); out: up(&priv->cmd.poll_sem); return err; } void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_cmd_context *context = &priv->cmd.context[token & priv->cmd.token_mask]; /* previously timed out command completing at long last */ if (token != context->token) return; context->fw_status = status; context->result = mlx4_status_to_errno(status); context->out_param = out_param; complete(&context->done); } static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; struct mlx4_cmd_context *context; long ret_wait; int err = 0; down(&cmd->event_sem); spin_lock(&cmd->context_lock); BUG_ON(cmd->free_head < 0); context = &cmd->context[cmd->free_head]; context->token += cmd->token_mask + 1; cmd->free_head = context->next; spin_unlock(&cmd->context_lock); if (out_is_imm && !out_param) { mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", op); err = -EINVAL; goto out; } reinit_completion(&context->done); err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, in_modifier, op_modifier, op, context->token, 1); if (err) goto out_reset; if (op == MLX4_CMD_SENSE_PORT) { ret_wait = wait_for_completion_interruptible_timeout(&context->done, msecs_to_jiffies(timeout)); if (ret_wait < 0) { context->fw_status = 0; context->out_param = 0; context->result = 0; } } else { ret_wait = (long)wait_for_completion_timeout(&context->done, msecs_to_jiffies(timeout)); } if (!ret_wait) { mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n", op); if (op == MLX4_CMD_NOP) { err = -EBUSY; goto out; } else { err = -EIO; goto out_reset; } } err = context->result; if (err) { /* Since we do not want to have this error message always * displayed at driver start when there are ConnectX2 HCAs * on the host, we deprecate the error message for this * specific command/input_mod/opcode_mod/fw-status to be debug. */ if (op == MLX4_CMD_SET_PORT && (in_modifier == 1 || in_modifier == 2) && op_modifier == MLX4_SET_PORT_IB_OPCODE && context->fw_status == CMD_STAT_BAD_SIZE) mlx4_dbg(dev, "command 0x%x failed: fw status = 0x%x\n", op, context->fw_status); else mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", op, context->fw_status); if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) err = mlx4_internal_err_ret_value(dev, op, op_modifier); else if (mlx4_closing_cmd_fatal_error(op, context->fw_status)) goto out_reset; goto out; } if (out_is_imm) *out_param = context->out_param; out_reset: if (err) err = mlx4_cmd_reset_flow(dev, op, op_modifier, err); out: spin_lock(&cmd->context_lock); context->next = cmd->free_head; cmd->free_head = context - cmd->context; spin_unlock(&cmd->context_lock); up(&cmd->event_sem); return err; } int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout, int native) { if (pci_channel_offline(dev->persist->pdev)) return mlx4_cmd_reset_flow(dev, op, op_modifier, -EIO); if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) { int ret; if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) return mlx4_internal_err_ret_value(dev, op, op_modifier); down_read(&mlx4_priv(dev)->cmd.switch_sem); if (mlx4_priv(dev)->cmd.use_events) ret = mlx4_cmd_wait(dev, in_param, out_param, out_is_imm, in_modifier, op_modifier, op, timeout); else ret = mlx4_cmd_poll(dev, in_param, out_param, out_is_imm, in_modifier, op_modifier, op, timeout); up_read(&mlx4_priv(dev)->cmd.switch_sem); return ret; } return mlx4_slave_cmd(dev, in_param, out_param, out_is_imm, in_modifier, op_modifier, op, timeout); } EXPORT_SYMBOL_GPL(__mlx4_cmd); int mlx4_ARM_COMM_CHANNEL(struct mlx4_dev *dev) { return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_ARM_COMM_CHANNEL, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); } static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr, int slave, u64 slave_addr, int size, int is_read) { u64 in_param; u64 out_param; if ((slave_addr & 0xfff) | (master_addr & 0xfff) | (slave & ~0x7f) | (size & 0xff)) { mlx4_err(dev, "Bad access mem params - slave_addr:0x%llx master_addr:0x%llx slave_id:%d size:%d\n", slave_addr, master_addr, slave, size); return -EINVAL; } if (is_read) { in_param = (u64) slave | slave_addr; out_param = (u64) dev->caps.function | master_addr; } else { in_param = (u64) dev->caps.function | master_addr; out_param = (u64) slave | slave_addr; } return mlx4_cmd_imm(dev, in_param, &out_param, size, 0, MLX4_CMD_ACCESS_MEM, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); } static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey, struct mlx4_cmd_mailbox *inbox, struct mlx4_cmd_mailbox *outbox) { struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf); struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf); int err; int i; if (index & 0x1f) return -EINVAL; in_mad->attr_mod = cpu_to_be32(index / 32); err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); if (err) return err; for (i = 0; i < 32; ++i) pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]); return err; } static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table, struct mlx4_cmd_mailbox *inbox, struct mlx4_cmd_mailbox *outbox) { int i; int err; for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) { err = query_pkey_block(dev, port, i, table + i, inbox, outbox); if (err) return err; } return 0; } #define PORT_CAPABILITY_LOCATION_IN_SMP 20 #define PORT_STATE_OFFSET 32 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf) { if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP) return IB_PORT_ACTIVE; else return IB_PORT_DOWN; } static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox, struct mlx4_cmd_mailbox *outbox, struct mlx4_cmd_info *cmd) { struct ib_smp *smp = inbox->buf; u32 index; u8 port, slave_port; u8 opcode_modifier; u16 *table; int err; int vidx, pidx; int network_view; struct mlx4_priv *priv = mlx4_priv(dev); struct ib_smp *outsmp = outbox->buf; __be16 *outtab = (__be16 *)(outsmp->data); __be32 slave_cap_mask; __be64 slave_node_guid; slave_port = vhcr->in_modifier; port = mlx4_slave_convert_port(dev, slave, slave_port); /* network-view bit is for driver use only, and should not be passed to FW */ opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */ network_view = !!(vhcr->op_modifier & 0x8); if (smp->base_version == 1 && smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && smp->class_version == 1) { /* host view is paravirtualized */ if (!network_view && smp->method == IB_MGMT_METHOD_GET) { if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) { index = be32_to_cpu(smp->attr_mod); if (port < 1 || port > dev->caps.num_ports) return -EINVAL; table = kcalloc((dev->caps.pkey_table_len[port] / 32) + 1, sizeof(*table) * 32, GFP_KERNEL); if (!table) return -ENOMEM; /* need to get the full pkey table because the paravirtualized * pkeys may be scattered among several pkey blocks. */ err = get_full_pkey_table(dev, port, table, inbox, outbox); if (!err) { for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) { pidx = priv->virt2phys_pkey[slave][port - 1][vidx]; outtab[vidx % 32] = cpu_to_be16(table[pidx]); } } kfree(table); return err; } if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) { /*get the slave specific caps:*/ /*do the command */ smp->attr_mod = cpu_to_be32(port); err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, opcode_modifier, vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); /* modify the response for slaves */ if (!err && slave != mlx4_master_func_num(dev)) { u8 *state = outsmp->data + PORT_STATE_OFFSET; *state = (*state & 0xf0) | vf_port_state(dev, port, slave); slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port]; memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4); } return err; } if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) { __be64 guid = mlx4_get_admin_guid(dev, slave, port); /* set the PF admin guid to the FW/HW burned * GUID, if it wasn't yet set */ if (slave == 0 && guid == 0) { smp->attr_mod = 0; err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier, opcode_modifier, vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); if (err) return err; mlx4_set_admin_guid(dev, *(__be64 *)outsmp-> data, slave, port); } else { memcpy(outsmp->data, &guid, 8); } /* clean all other gids */ memset(outsmp->data + 8, 0, 56); return 0; } if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) { err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, opcode_modifier, vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); if (!err) { slave_node_guid = mlx4_get_slave_node_guid(dev, slave); memcpy(outsmp->data + 12, &slave_node_guid, 8); } return err; } } } /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs. * These are the MADs used by ib verbs (such as ib_query_gids). */ if (slave != mlx4_master_func_num(dev) && !mlx4_vf_smi_enabled(dev, slave, port)) { if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && smp->method == IB_MGMT_METHOD_GET) || network_view) { mlx4_err(dev, "Unprivileged slave %d is trying to execute a Subnet MGMT MAD, class 0x%x, method 0x%x, view=%s for attr 0x%x. Rejecting\n", slave, smp->mgmt_class, smp->method, network_view ? "Network" : "Host", be16_to_cpu(smp->attr_id)); return -EPERM; } } return mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier, opcode_modifier, vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); } static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox, struct mlx4_cmd_mailbox *outbox, struct mlx4_cmd_info *cmd) { return -EPERM; } int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox, struct mlx4_cmd_mailbox *outbox, struct mlx4_cmd_info *cmd) { u64 in_param; u64 out_param; int err; in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param; out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param; if (cmd->encode_slave_id) { in_param &= 0xffffffffffffff00ll; in_param |= slave; } err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm, vhcr->in_modifier, vhcr->op_modifier, vhcr->op, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); if (cmd->out_is_imm) vhcr->out_param = out_param; return err; } static struct mlx4_cmd_info cmd_info[] = { { .opcode = MLX4_CMD_QUERY_FW, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_FW_wrapper }, { .opcode = MLX4_CMD_QUERY_HCA, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, { .opcode = MLX4_CMD_QUERY_DEV_CAP, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_DEV_CAP_wrapper }, { .opcode = MLX4_CMD_QUERY_FUNC_CAP, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_FUNC_CAP_wrapper }, { .opcode = MLX4_CMD_QUERY_ADAPTER, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, { .opcode = MLX4_CMD_INIT_PORT, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_INIT_PORT_wrapper }, { .opcode = MLX4_CMD_CLOSE_PORT, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CLOSE_PORT_wrapper }, { .opcode = MLX4_CMD_QUERY_PORT, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_PORT_wrapper }, { .opcode = MLX4_CMD_SET_PORT, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_SET_PORT_wrapper }, { .opcode = MLX4_CMD_MAP_EQ, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_MAP_EQ_wrapper }, { .opcode = MLX4_CMD_SW2HW_EQ, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_SW2HW_EQ_wrapper }, { .opcode = MLX4_CMD_HW_HEALTH_CHECK, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, { .opcode = MLX4_CMD_NOP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, { .opcode = MLX4_CMD_CONFIG_DEV, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CONFIG_DEV_wrapper }, { .opcode = MLX4_CMD_ALLOC_RES, .has_inbox = false, .has_outbox = false, .out_is_imm = true, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_ALLOC_RES_wrapper }, { .opcode = MLX4_CMD_FREE_RES, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_FREE_RES_wrapper }, { .opcode = MLX4_CMD_SW2HW_MPT, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_SW2HW_MPT_wrapper }, { .opcode = MLX4_CMD_QUERY_MPT, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_MPT_wrapper }, { .opcode = MLX4_CMD_HW2SW_MPT, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_HW2SW_MPT_wrapper }, { .opcode = MLX4_CMD_READ_MTT, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, { .opcode = MLX4_CMD_WRITE_MTT, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_WRITE_MTT_wrapper }, { .opcode = MLX4_CMD_SYNC_TPT, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, { .opcode = MLX4_CMD_HW2SW_EQ, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_HW2SW_EQ_wrapper }, { .opcode = MLX4_CMD_QUERY_EQ, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_QUERY_EQ_wrapper }, { .opcode = MLX4_CMD_SW2HW_CQ, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_SW2HW_CQ_wrapper }, { .opcode = MLX4_CMD_HW2SW_CQ, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_HW2SW_CQ_wrapper }, { .opcode = MLX4_CMD_QUERY_CQ, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_CQ_wrapper }, { .opcode = MLX4_CMD_MODIFY_CQ, .has_inbox = true, .has_outbox = false, .out_is_imm = true, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_MODIFY_CQ_wrapper }, { .opcode = MLX4_CMD_SW2HW_SRQ, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_SW2HW_SRQ_wrapper }, { .opcode = MLX4_CMD_HW2SW_SRQ, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_HW2SW_SRQ_wrapper }, { .opcode = MLX4_CMD_QUERY_SRQ, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_SRQ_wrapper }, { .opcode = MLX4_CMD_ARM_SRQ, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_ARM_SRQ_wrapper }, { .opcode = MLX4_CMD_RST2INIT_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = true, .verify = NULL, .wrapper = mlx4_RST2INIT_QP_wrapper }, { .opcode = MLX4_CMD_INIT2INIT_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_INIT2INIT_QP_wrapper }, { .opcode = MLX4_CMD_INIT2RTR_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_INIT2RTR_QP_wrapper }, { .opcode = MLX4_CMD_RTR2RTS_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_RTR2RTS_QP_wrapper }, { .opcode = MLX4_CMD_RTS2RTS_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_RTS2RTS_QP_wrapper }, { .opcode = MLX4_CMD_SQERR2RTS_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_SQERR2RTS_QP_wrapper }, { .opcode = MLX4_CMD_2ERR_QP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_GEN_QP_wrapper }, { .opcode = MLX4_CMD_RTS2SQD_QP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_GEN_QP_wrapper }, { .opcode = MLX4_CMD_SQD2SQD_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_SQD2SQD_QP_wrapper }, { .opcode = MLX4_CMD_SQD2RTS_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_SQD2RTS_QP_wrapper }, { .opcode = MLX4_CMD_2RST_QP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_2RST_QP_wrapper }, { .opcode = MLX4_CMD_QUERY_QP, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_GEN_QP_wrapper }, { .opcode = MLX4_CMD_SUSPEND_QP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_GEN_QP_wrapper }, { .opcode = MLX4_CMD_UNSUSPEND_QP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_GEN_QP_wrapper }, { .opcode = MLX4_CMD_UPDATE_QP, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_UPDATE_QP_wrapper }, { .opcode = MLX4_CMD_GET_OP_REQ, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper, }, { .opcode = MLX4_CMD_ALLOCATE_VPP, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper, }, { .opcode = MLX4_CMD_SET_VPORT_QOS, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper, }, { .opcode = MLX4_CMD_CONF_SPECIAL_QP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, /* XXX verify: only demux can do this */ .wrapper = NULL }, { .opcode = MLX4_CMD_MAD_IFC, .has_inbox = true, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_MAD_IFC_wrapper }, { .opcode = MLX4_CMD_MAD_DEMUX, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper }, { .opcode = MLX4_CMD_QUERY_IF_STAT, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QUERY_IF_STAT_wrapper }, { .opcode = MLX4_CMD_ACCESS_REG, .has_inbox = true, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_ACCESS_REG_wrapper, }, { .opcode = MLX4_CMD_CONGESTION_CTRL_OPCODE, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper, }, /* Native multicast commands are not available for guests */ { .opcode = MLX4_CMD_QP_ATTACH, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QP_ATTACH_wrapper }, { .opcode = MLX4_CMD_PROMISC, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_PROMISC_wrapper }, /* Ethernet specific commands */ { .opcode = MLX4_CMD_SET_VLAN_FLTR, .has_inbox = true, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_SET_VLAN_FLTR_wrapper }, { .opcode = MLX4_CMD_SET_MCAST_FLTR, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_SET_MCAST_FLTR_wrapper }, { .opcode = MLX4_CMD_DUMP_ETH_STATS, .has_inbox = false, .has_outbox = true, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_DUMP_ETH_STATS_wrapper }, { .opcode = MLX4_CMD_INFORM_FLR_DONE, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = NULL }, /* flow steering commands */ { .opcode = MLX4_QP_FLOW_STEERING_ATTACH, .has_inbox = true, .has_outbox = false, .out_is_imm = true, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper }, { .opcode = MLX4_QP_FLOW_STEERING_DETACH, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper }, { .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper }, { .opcode = MLX4_CMD_VIRT_PORT_MAP, .has_inbox = false, .has_outbox = false, .out_is_imm = false, .encode_slave_id = false, .verify = NULL, .wrapper = mlx4_CMD_EPERM_wrapper }, }; static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, struct mlx4_vhcr_cmd *in_vhcr) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_cmd_info *cmd = NULL; struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr; struct mlx4_vhcr *vhcr; struct mlx4_cmd_mailbox *inbox = NULL; struct mlx4_cmd_mailbox *outbox = NULL; u64 in_param; u64 out_param; int ret = 0; int i; int err = 0; /* Create sw representation of Virtual HCR */ vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL); if (!vhcr) return -ENOMEM; /* DMA in the vHCR */ if (!in_vhcr) { ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, priv->mfunc.master.slave_state[slave].vhcr_dma, ALIGN(sizeof(struct mlx4_vhcr_cmd), MLX4_ACCESS_MEM_ALIGN), 1); if (ret) { if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n", __func__, ret); kfree(vhcr); return ret; } } /* Fill SW VHCR fields */ vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param); vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param); vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier); vhcr->token = be16_to_cpu(vhcr_cmd->token); vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff; vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12); vhcr->e_bit = vhcr_cmd->flags & (1 << 6); /* Lookup command */ for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) { if (vhcr->op == cmd_info[i].opcode) { cmd = &cmd_info[i]; break; } } if (!cmd) { mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n", vhcr->op, slave); vhcr_cmd->status = CMD_STAT_BAD_PARAM; goto out_status; } /* Read inbox */ if (cmd->has_inbox) { vhcr->in_param &= INBOX_MASK; inbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(inbox)) { vhcr_cmd->status = CMD_STAT_BAD_SIZE; inbox = NULL; goto out_status; } ret = mlx4_ACCESS_MEM(dev, inbox->dma, slave, vhcr->in_param, MLX4_MAILBOX_SIZE, 1); if (ret) { if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n", __func__, cmd->opcode); vhcr_cmd->status = CMD_STAT_INTERNAL_ERR; goto out_status; } } /* Apply permission and bound checks if applicable */ if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) { mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n", vhcr->op, slave, vhcr->in_modifier); vhcr_cmd->status = CMD_STAT_BAD_OP; goto out_status; } /* Allocate outbox */ if (cmd->has_outbox) { outbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(outbox)) { vhcr_cmd->status = CMD_STAT_BAD_SIZE; outbox = NULL; goto out_status; } } /* Execute the command! */ if (cmd->wrapper) { err = cmd->wrapper(dev, slave, vhcr, inbox, outbox, cmd); if (cmd->out_is_imm) vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); } else { in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param; out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param; err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm, vhcr->in_modifier, vhcr->op_modifier, vhcr->op, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); if (cmd->out_is_imm) { vhcr->out_param = out_param; vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); } } if (err) { if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { if (vhcr->op == MLX4_CMD_ALLOC_RES && (vhcr->in_modifier & 0xff) == RES_COUNTER && err == -EDQUOT) mlx4_dbg(dev, "Unable to allocate counter for slave %d (%d)\n", slave, err); else mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n", vhcr->op, slave, vhcr->errno, err); } vhcr_cmd->status = mlx4_errno_to_status(err); goto out_status; } /* Write outbox if command completed successfully */ if (cmd->has_outbox && !vhcr_cmd->status) { ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave, vhcr->out_param, MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED); if (ret) { /* If we failed to write back the outbox after the *command was successfully executed, we must fail this * slave, as it is now in undefined state */ if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) mlx4_err(dev, "%s:Failed writing outbox\n", __func__); goto out; } } out_status: /* DMA back vhcr result */ if (!in_vhcr) { ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, priv->mfunc.master.slave_state[slave].vhcr_dma, ALIGN(sizeof(struct mlx4_vhcr), MLX4_ACCESS_MEM_ALIGN), MLX4_CMD_WRAPPED); if (ret) mlx4_err(dev, "%s:Failed writing vhcr result\n", __func__); else if (vhcr->e_bit && mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe)) mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n", slave); } out: kfree(vhcr); mlx4_free_cmd_mailbox(dev, inbox); mlx4_free_cmd_mailbox(dev, outbox); return ret; } static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv, int slave, int port) { struct mlx4_vport_oper_state *vp_oper; struct mlx4_vport_state *vp_admin; struct mlx4_vf_immed_vlan_work *work; struct mlx4_dev *dev = &(priv->dev); int err; int admin_vlan_ix = NO_INDX; vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; if (vp_oper->state.default_vlan == vp_admin->default_vlan && vp_oper->state.default_qos == vp_admin->default_qos && vp_oper->state.vlan_proto == vp_admin->vlan_proto && vp_oper->state.link_state == vp_admin->link_state && vp_oper->state.qos_vport == vp_admin->qos_vport) return 0; if (!(priv->mfunc.master.slave_state[slave].active && dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) { /* even if the UPDATE_QP command isn't supported, we still want * to set this VF link according to the admin directive */ vp_oper->state.link_state = vp_admin->link_state; return -1; } mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n", slave, port); mlx4_dbg(dev, "vlan %d QoS %d link down %d\n", vp_admin->default_vlan, vp_admin->default_qos, vp_admin->link_state); work = kzalloc(sizeof(*work), GFP_KERNEL); if (!work) return -ENOMEM; if (vp_oper->state.default_vlan != vp_admin->default_vlan) { if (MLX4_VGT != vp_admin->default_vlan) { err = __mlx4_register_vlan(&priv->dev, port, vp_admin->default_vlan, &admin_vlan_ix); if (err) { kfree(work); mlx4_warn(&priv->dev, "No vlan resources slave %d, port %d\n", slave, port); return err; } } else { admin_vlan_ix = NO_INDX; } work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN; mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n", (int)(vp_admin->default_vlan), admin_vlan_ix, slave, port); } /* save original vlan ix and vlan id */ work->orig_vlan_id = vp_oper->state.default_vlan; work->orig_vlan_ix = vp_oper->vlan_idx; /* handle new qos */ if (vp_oper->state.default_qos != vp_admin->default_qos) work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS; if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN) vp_oper->vlan_idx = admin_vlan_ix; vp_oper->state.default_vlan = vp_admin->default_vlan; vp_oper->state.default_qos = vp_admin->default_qos; vp_oper->state.vlan_proto = vp_admin->vlan_proto; vp_oper->state.link_state = vp_admin->link_state; vp_oper->state.qos_vport = vp_admin->qos_vport; if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE) work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE; /* iterate over QPs owned by this slave, using UPDATE_QP */ work->port = port; work->slave = slave; work->qos = vp_oper->state.default_qos; work->qos_vport = vp_oper->state.qos_vport; work->vlan_id = vp_oper->state.default_vlan; work->vlan_ix = vp_oper->vlan_idx; work->vlan_proto = vp_oper->state.vlan_proto; work->priv = priv; INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler); queue_work(priv->mfunc.master.comm_wq, &work->work); return 0; } static void mlx4_set_default_port_qos(struct mlx4_dev *dev, int port) { struct mlx4_qos_manager *port_qos_ctl; struct mlx4_priv *priv = mlx4_priv(dev); port_qos_ctl = &priv->mfunc.master.qos_ctl[port]; bitmap_zero(port_qos_ctl->priority_bm, MLX4_NUM_UP); /* Enable only default prio at PF init routine */ set_bit(MLX4_DEFAULT_QOS_PRIO, port_qos_ctl->priority_bm); } static void mlx4_allocate_port_vpps(struct mlx4_dev *dev, int port) { int i; int err; int num_vfs; u16 available_vpp; u8 vpp_param[MLX4_NUM_UP]; struct mlx4_qos_manager *port_qos; struct mlx4_priv *priv = mlx4_priv(dev); err = mlx4_ALLOCATE_VPP_get(dev, port, &available_vpp, vpp_param); if (err) { mlx4_info(dev, "Failed query available VPPs\n"); return; } port_qos = &priv->mfunc.master.qos_ctl[port]; num_vfs = (available_vpp / bitmap_weight(port_qos->priority_bm, MLX4_NUM_UP)); for (i = 0; i < MLX4_NUM_UP; i++) { if (test_bit(i, port_qos->priority_bm)) vpp_param[i] = num_vfs; } err = mlx4_ALLOCATE_VPP_set(dev, port, vpp_param); if (err) { mlx4_info(dev, "Failed allocating VPPs\n"); return; } /* Query actual allocated VPP, just to make sure */ err = mlx4_ALLOCATE_VPP_get(dev, port, &available_vpp, vpp_param); if (err) { mlx4_info(dev, "Failed query available VPPs\n"); return; } port_qos->num_of_qos_vfs = num_vfs; mlx4_dbg(dev, "Port %d Available VPPs %d\n", port, available_vpp); for (i = 0; i < MLX4_NUM_UP; i++) mlx4_dbg(dev, "Port %d UP %d Allocated %d VPPs\n", port, i, vpp_param[i]); } static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave) { int p, port, err; struct mlx4_vport_state *vp_admin; struct mlx4_vport_oper_state *vp_oper; struct mlx4_slave_state *slave_state = &priv->mfunc.master.slave_state[slave]; struct mlx4_active_ports actv_ports = mlx4_get_active_ports( &priv->dev, slave); for_each_set_bit(p, actv_ports.ports, priv->dev.caps.num_ports) { port = p + 1; priv->mfunc.master.vf_oper[slave].smi_enabled[port] = priv->mfunc.master.vf_admin[slave].enable_smi[port]; vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; if (vp_admin->vlan_proto != htons(ETH_P_8021AD) || slave_state->vst_qinq_supported) { vp_oper->state.vlan_proto = vp_admin->vlan_proto; vp_oper->state.default_vlan = vp_admin->default_vlan; vp_oper->state.default_qos = vp_admin->default_qos; } vp_oper->state.link_state = vp_admin->link_state; vp_oper->state.mac = vp_admin->mac; vp_oper->state.spoofchk = vp_admin->spoofchk; vp_oper->state.tx_rate = vp_admin->tx_rate; vp_oper->state.qos_vport = vp_admin->qos_vport; vp_oper->state.guid = vp_admin->guid; if (MLX4_VGT != vp_admin->default_vlan) { err = __mlx4_register_vlan(&priv->dev, port, vp_admin->default_vlan, &(vp_oper->vlan_idx)); if (err) { vp_oper->vlan_idx = NO_INDX; vp_oper->state.default_vlan = MLX4_VGT; vp_oper->state.vlan_proto = htons(ETH_P_8021Q); mlx4_warn(&priv->dev, "No vlan resources slave %d, port %d\n", slave, port); return err; } mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n", (int)(vp_oper->state.default_vlan), vp_oper->vlan_idx, slave, port); } if (vp_admin->spoofchk) { vp_oper->mac_idx = __mlx4_register_mac(&priv->dev, port, vp_admin->mac); if (0 > vp_oper->mac_idx) { err = vp_oper->mac_idx; vp_oper->mac_idx = NO_INDX; mlx4_warn(&priv->dev, "No mac resources slave %d, port %d\n", slave, port); return err; } mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n", vp_oper->state.mac, vp_oper->mac_idx, slave, port); } } return 0; } static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave) { int p, port; struct mlx4_vport_oper_state *vp_oper; struct mlx4_active_ports actv_ports = mlx4_get_active_ports( &priv->dev, slave); for_each_set_bit(p, actv_ports.ports, priv->dev.caps.num_ports) { port = p + 1; priv->mfunc.master.vf_oper[slave].smi_enabled[port] = MLX4_VF_SMI_DISABLED; vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; if (NO_INDX != vp_oper->vlan_idx) { __mlx4_unregister_vlan(&priv->dev, port, vp_oper->state.default_vlan); vp_oper->vlan_idx = NO_INDX; } if (NO_INDX != vp_oper->mac_idx) { __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac); vp_oper->mac_idx = NO_INDX; } } return; } static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd, u16 param, u8 toggle) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; u32 reply; u8 is_going_down = 0; int i; unsigned long flags; slave_state[slave].comm_toggle ^= 1; reply = (u32) slave_state[slave].comm_toggle << 31; if (toggle != slave_state[slave].comm_toggle) { mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n", toggle, slave); goto reset_slave; } if (cmd == MLX4_COMM_CMD_RESET) { mlx4_warn(dev, "Received reset from slave:%d\n", slave); slave_state[slave].active = false; slave_state[slave].old_vlan_api = false; slave_state[slave].vst_qinq_supported = false; mlx4_master_deactivate_admin_state(priv, slave); for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) { slave_state[slave].event_eq[i].eqn = -1; slave_state[slave].event_eq[i].token = 0; } /*check if we are in the middle of FLR process, if so return "retry" status to the slave*/ if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) goto inform_slave_state; mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave); /* write the version in the event field */ reply |= mlx4_comm_get_version(); goto reset_slave; } /*command from slave in the middle of FLR*/ if (cmd != MLX4_COMM_CMD_RESET && MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) { mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n", slave, cmd); return; } switch (cmd) { case MLX4_COMM_CMD_VHCR0: if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET) goto reset_slave; slave_state[slave].vhcr_dma = ((u64) param) << 48; priv->mfunc.master.slave_state[slave].cookie = 0; break; case MLX4_COMM_CMD_VHCR1: if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0) goto reset_slave; slave_state[slave].vhcr_dma |= ((u64) param) << 32; break; case MLX4_COMM_CMD_VHCR2: if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1) goto reset_slave; slave_state[slave].vhcr_dma |= ((u64) param) << 16; break; case MLX4_COMM_CMD_VHCR_EN: if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2) goto reset_slave; slave_state[slave].vhcr_dma |= param; if (mlx4_master_activate_admin_state(priv, slave)) goto reset_slave; slave_state[slave].active = true; mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave); break; case MLX4_COMM_CMD_VHCR_POST: if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) && (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST)) { mlx4_warn(dev, "slave:%d is out of sync, cmd=0x%x, last command=0x%x, reset is needed\n", slave, cmd, slave_state[slave].last_cmd); goto reset_slave; } mutex_lock(&priv->cmd.slave_cmd_mutex); if (mlx4_master_process_vhcr(dev, slave, NULL)) { mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n", slave); mutex_unlock(&priv->cmd.slave_cmd_mutex); goto reset_slave; } mutex_unlock(&priv->cmd.slave_cmd_mutex); break; default: mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave); goto reset_slave; } spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); if (!slave_state[slave].is_slave_going_down) slave_state[slave].last_cmd = cmd; else is_going_down = 1; spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); if (is_going_down) { mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n", cmd, slave); return; } __raw_writel((__force u32) cpu_to_be32(reply), &priv->mfunc.comm[slave].slave_read); return; reset_slave: /* cleanup any slave resources */ if (dev->persist->interface_state & MLX4_INTERFACE_STATE_UP) mlx4_delete_all_resources_for_slave(dev, slave); if (cmd != MLX4_COMM_CMD_RESET) { mlx4_warn(dev, "Turn on internal error to force reset, slave=%d, cmd=0x%x\n", slave, cmd); /* Turn on internal error letting slave reset itself immeditaly, * otherwise it might take till timeout on command is passed */ reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR); } spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); if (!slave_state[slave].is_slave_going_down) slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET; spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); /*with slave in the middle of flr, no need to clean resources again.*/ inform_slave_state: memset(&slave_state[slave].event_eq, 0, sizeof(struct mlx4_slave_event_eq_info)); __raw_writel((__force u32) cpu_to_be32(reply), &priv->mfunc.comm[slave].slave_read); wmb(); } /* master command processing */ void mlx4_master_comm_channel(struct work_struct *work) { struct mlx4_mfunc_master_ctx *master = container_of(work, struct mlx4_mfunc_master_ctx, comm_work); struct mlx4_mfunc *mfunc = container_of(master, struct mlx4_mfunc, master); struct mlx4_priv *priv = container_of(mfunc, struct mlx4_priv, mfunc); struct mlx4_dev *dev = &priv->dev; u32 lbit_vec[COMM_CHANNEL_BIT_ARRAY_SIZE]; u32 nmbr_bits; u32 comm_cmd; int i, slave; int toggle; bool first = true; int served = 0; int reported = 0; u32 slt; for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) lbit_vec[i] = be32_to_cpu(master->comm_arm_bit_vector[i]); nmbr_bits = dev->persist->num_vfs + 1; if (++master->next_slave >= nmbr_bits) master->next_slave = 0; slave = master->next_slave; while (true) { slave = find_next_bit((const unsigned long *)&lbit_vec, nmbr_bits, slave); if (!first && slave >= master->next_slave) break; if (slave == nmbr_bits) { if (!first) break; first = false; slave = 0; continue; } ++reported; comm_cmd = swab32(readl(&mfunc->comm[slave].slave_write)); slt = swab32(readl(&mfunc->comm[slave].slave_read)) >> 31; toggle = comm_cmd >> 31; if (toggle != slt) { if (master->slave_state[slave].comm_toggle != slt) { pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n", slave, slt, master->slave_state[slave].comm_toggle); master->slave_state[slave].comm_toggle = slt; } mlx4_master_do_cmd(dev, slave, comm_cmd >> 16 & 0xff, comm_cmd & 0xffff, toggle); ++served; } slave++; } if (reported && reported != served) mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n", reported, served); if (mlx4_ARM_COMM_CHANNEL(dev)) mlx4_warn(dev, "Failed to arm comm channel events\n"); } static int sync_toggles(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); u32 wr_toggle; u32 rd_toggle; unsigned long end; wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write)); if (wr_toggle == 0xffffffff) end = jiffies + msecs_to_jiffies(30000); else end = jiffies + msecs_to_jiffies(5000); while (time_before(jiffies, end)) { rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read)); if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) { /* PCI might be offline */ /* If device removal has been requested, * do not continue retrying. */ if (dev->persist->interface_state & MLX4_INTERFACE_STATE_NOWAIT) { mlx4_warn(dev, "communication channel is offline\n"); return -EIO; } msleep(100); wr_toggle = swab32(readl(&priv->mfunc.comm-> slave_write)); continue; } if (rd_toggle >> 31 == wr_toggle >> 31) { priv->cmd.comm_toggle = rd_toggle >> 31; return 0; } cond_resched(); } /* * we could reach here if for example the previous VM using this * function misbehaved and left the channel with unsynced state. We * should fix this here and give this VM a chance to use a properly * synced channel */ mlx4_warn(dev, "recovering from previously mis-behaved VM\n"); __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read); __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write); priv->cmd.comm_toggle = 0; return 0; } int mlx4_multi_func_init(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_slave_state *s_state; int i, j, err, port; if (mlx4_is_master(dev)) priv->mfunc.comm = ioremap(pci_resource_start(dev->persist->pdev, priv->fw.comm_bar) + priv->fw.comm_base, MLX4_COMM_PAGESIZE); else priv->mfunc.comm = ioremap(pci_resource_start(dev->persist->pdev, 2) + MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE); if (!priv->mfunc.comm) { mlx4_err(dev, "Couldn't map communication vector\n"); goto err_vhcr; } if (mlx4_is_master(dev)) { struct mlx4_vf_oper_state *vf_oper; struct mlx4_vf_admin_state *vf_admin; priv->mfunc.master.slave_state = kcalloc(dev->num_slaves, sizeof(struct mlx4_slave_state), GFP_KERNEL); if (!priv->mfunc.master.slave_state) goto err_comm; priv->mfunc.master.vf_admin = kcalloc(dev->num_slaves, sizeof(struct mlx4_vf_admin_state), GFP_KERNEL); if (!priv->mfunc.master.vf_admin) goto err_comm_admin; priv->mfunc.master.vf_oper = kcalloc(dev->num_slaves, sizeof(struct mlx4_vf_oper_state), GFP_KERNEL); if (!priv->mfunc.master.vf_oper) goto err_comm_oper; priv->mfunc.master.next_slave = 0; for (i = 0; i < dev->num_slaves; ++i) { vf_admin = &priv->mfunc.master.vf_admin[i]; vf_oper = &priv->mfunc.master.vf_oper[i]; s_state = &priv->mfunc.master.slave_state[i]; s_state->last_cmd = MLX4_COMM_CMD_RESET; s_state->vst_qinq_supported = false; mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]); for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j) s_state->event_eq[j].eqn = -1; __raw_writel((__force u32) 0, &priv->mfunc.comm[i].slave_write); __raw_writel((__force u32) 0, &priv->mfunc.comm[i].slave_read); for (port = 1; port <= MLX4_MAX_PORTS; port++) { struct mlx4_vport_state *admin_vport; struct mlx4_vport_state *oper_vport; s_state->vlan_filter[port] = kzalloc(sizeof(struct mlx4_vlan_fltr), GFP_KERNEL); if (!s_state->vlan_filter[port]) { if (--port) kfree(s_state->vlan_filter[port]); goto err_slaves; } admin_vport = &vf_admin->vport[port]; oper_vport = &vf_oper->vport[port].state; INIT_LIST_HEAD(&s_state->mcast_filters[port]); admin_vport->default_vlan = MLX4_VGT; oper_vport->default_vlan = MLX4_VGT; admin_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT; oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT; admin_vport->vlan_proto = htons(ETH_P_8021Q); oper_vport->vlan_proto = htons(ETH_P_8021Q); vf_oper->vport[port].vlan_idx = NO_INDX; vf_oper->vport[port].mac_idx = NO_INDX; mlx4_set_random_admin_guid(dev, i, port); } spin_lock_init(&s_state->lock); } if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) { for (port = 1; port <= dev->caps.num_ports; port++) { if (mlx4_is_eth(dev, port)) { mlx4_set_default_port_qos(dev, port); mlx4_allocate_port_vpps(dev, port); } } } memset(&priv->mfunc.master.cmd_eqe, 0, sizeof(struct mlx4_eqe)); priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD; INIT_WORK(&priv->mfunc.master.comm_work, mlx4_master_comm_channel); INIT_WORK(&priv->mfunc.master.slave_event_work, mlx4_gen_slave_eqe); INIT_WORK(&priv->mfunc.master.slave_flr_event_work, mlx4_master_handle_slave_flr); spin_lock_init(&priv->mfunc.master.slave_state_lock); spin_lock_init(&priv->mfunc.master.slave_eq.event_lock); priv->mfunc.master.comm_wq = create_singlethread_workqueue("mlx4_comm"); if (!priv->mfunc.master.comm_wq) goto err_slaves; if (mlx4_init_resource_tracker(dev)) goto err_thread; } else { err = sync_toggles(dev); if (err) { mlx4_err(dev, "Couldn't sync toggles\n"); goto err_comm; } } return 0; err_thread: destroy_workqueue(priv->mfunc.master.comm_wq); err_slaves: while (i--) { for (port = 1; port <= MLX4_MAX_PORTS; port++) kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); } kfree(priv->mfunc.master.vf_oper); err_comm_oper: kfree(priv->mfunc.master.vf_admin); err_comm_admin: kfree(priv->mfunc.master.slave_state); err_comm: iounmap(priv->mfunc.comm); priv->mfunc.comm = NULL; err_vhcr: dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, priv->mfunc.vhcr, priv->mfunc.vhcr_dma); priv->mfunc.vhcr = NULL; return -ENOMEM; } int mlx4_cmd_init(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int flags = 0; if (!priv->cmd.initialized) { init_rwsem(&priv->cmd.switch_sem); mutex_init(&priv->cmd.slave_cmd_mutex); sema_init(&priv->cmd.poll_sem, 1); priv->cmd.use_events = 0; priv->cmd.toggle = 1; priv->cmd.initialized = 1; flags |= MLX4_CMD_CLEANUP_STRUCT; } if (!mlx4_is_slave(dev) && !priv->cmd.hcr) { priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev, 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE); if (!priv->cmd.hcr) { mlx4_err(dev, "Couldn't map command register\n"); goto err; } flags |= MLX4_CMD_CLEANUP_HCR; } if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) { priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev, PAGE_SIZE, &priv->mfunc.vhcr_dma, GFP_KERNEL); if (!priv->mfunc.vhcr) goto err; flags |= MLX4_CMD_CLEANUP_VHCR; } if (!priv->cmd.pool) { priv->cmd.pool = dma_pool_create("mlx4_cmd", &dev->persist->pdev->dev, MLX4_MAILBOX_SIZE, MLX4_MAILBOX_SIZE, 0); if (!priv->cmd.pool) goto err; flags |= MLX4_CMD_CLEANUP_POOL; } return 0; err: mlx4_cmd_cleanup(dev, flags); return -ENOMEM; } void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int slave; u32 slave_read; /* If the comm channel has not yet been initialized, * skip reporting the internal error event to all * the communication channels. */ if (!priv->mfunc.comm) return; /* Report an internal error event to all * communication channels. */ for (slave = 0; slave < dev->num_slaves; slave++) { slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read)); slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR; __raw_writel((__force u32)cpu_to_be32(slave_read), &priv->mfunc.comm[slave].slave_read); } } void mlx4_multi_func_cleanup(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int i, port; if (mlx4_is_master(dev)) { destroy_workqueue(priv->mfunc.master.comm_wq); for (i = 0; i < dev->num_slaves; i++) { for (port = 1; port <= MLX4_MAX_PORTS; port++) kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); } kfree(priv->mfunc.master.slave_state); kfree(priv->mfunc.master.vf_admin); kfree(priv->mfunc.master.vf_oper); dev->num_slaves = 0; } iounmap(priv->mfunc.comm); priv->mfunc.comm = NULL; } void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask) { struct mlx4_priv *priv = mlx4_priv(dev); if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) { dma_pool_destroy(priv->cmd.pool); priv->cmd.pool = NULL; } if (!mlx4_is_slave(dev) && priv->cmd.hcr && (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) { iounmap(priv->cmd.hcr); priv->cmd.hcr = NULL; } if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr && (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) { dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, priv->mfunc.vhcr, priv->mfunc.vhcr_dma); priv->mfunc.vhcr = NULL; } if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT)) priv->cmd.initialized = 0; } /* * Switch to using events to issue FW commands (can only be called * after event queue for command events has been initialized). */ int mlx4_cmd_use_events(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int i; int err = 0; priv->cmd.context = kmalloc_array(priv->cmd.max_cmds, sizeof(struct mlx4_cmd_context), GFP_KERNEL); if (!priv->cmd.context) return -ENOMEM; if (mlx4_is_mfunc(dev)) mutex_lock(&priv->cmd.slave_cmd_mutex); down_write(&priv->cmd.switch_sem); for (i = 0; i < priv->cmd.max_cmds; ++i) { priv->cmd.context[i].token = i; priv->cmd.context[i].next = i + 1; /* To support fatal error flow, initialize all * cmd contexts to allow simulating completions * with complete() at any time. */ init_completion(&priv->cmd.context[i].done); } priv->cmd.context[priv->cmd.max_cmds - 1].next = -1; priv->cmd.free_head = 0; sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds); for (priv->cmd.token_mask = 1; priv->cmd.token_mask < priv->cmd.max_cmds; priv->cmd.token_mask <<= 1) ; /* nothing */ --priv->cmd.token_mask; down(&priv->cmd.poll_sem); priv->cmd.use_events = 1; up_write(&priv->cmd.switch_sem); if (mlx4_is_mfunc(dev)) mutex_unlock(&priv->cmd.slave_cmd_mutex); return err; } /* * Switch back to polling (used when shutting down the device) */ void mlx4_cmd_use_polling(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int i; if (mlx4_is_mfunc(dev)) mutex_lock(&priv->cmd.slave_cmd_mutex); down_write(&priv->cmd.switch_sem); priv->cmd.use_events = 0; for (i = 0; i < priv->cmd.max_cmds; ++i) down(&priv->cmd.event_sem); kfree(priv->cmd.context); priv->cmd.context = NULL; up(&priv->cmd.poll_sem); up_write(&priv->cmd.switch_sem); if (mlx4_is_mfunc(dev)) mutex_unlock(&priv->cmd.slave_cmd_mutex); } struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev) { struct mlx4_cmd_mailbox *mailbox; mailbox = kmalloc(sizeof(*mailbox), GFP_KERNEL); if (!mailbox) return ERR_PTR(-ENOMEM); mailbox->buf = dma_pool_zalloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL, &mailbox->dma); if (!mailbox->buf) { kfree(mailbox); return ERR_PTR(-ENOMEM); } return mailbox; } EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox); void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox) { if (!mailbox) return; dma_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma); kfree(mailbox); } EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox); u32 mlx4_comm_get_version(void) { return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER; } static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf) { if ((vf < 0) || (vf >= dev->persist->num_vfs)) { mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n", vf, dev->persist->num_vfs); return -EINVAL; } return vf+1; } int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave) { if (slave < 1 || slave > dev->persist->num_vfs) { mlx4_err(dev, "Bad slave number:%d (number of activated slaves: %lu)\n", slave, dev->num_slaves); return -EINVAL; } return slave - 1; } void mlx4_cmd_wake_completions(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_cmd_context *context; int i; spin_lock(&priv->cmd.context_lock); if (priv->cmd.context) { for (i = 0; i < priv->cmd.max_cmds; ++i) { context = &priv->cmd.context[i]; context->fw_status = CMD_STAT_INTERNAL_ERR; context->result = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); complete(&context->done); } } spin_unlock(&priv->cmd.context_lock); } struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave) { struct mlx4_active_ports actv_ports; int vf; bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS); if (slave == 0) { bitmap_fill(actv_ports.ports, dev->caps.num_ports); return actv_ports; } vf = mlx4_get_vf_indx(dev, slave); if (vf < 0) return actv_ports; bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1, min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports, dev->caps.num_ports)); return actv_ports; } EXPORT_SYMBOL_GPL(mlx4_get_active_ports); int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port) { unsigned n; struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports); if (port <= 0 || port > m) return -EINVAL; n = find_first_bit(actv_ports.ports, dev->caps.num_ports); if (port <= n) port = n + 1; return port; } EXPORT_SYMBOL_GPL(mlx4_slave_convert_port); int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port) { struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); if (test_bit(port - 1, actv_ports.ports)) return port - find_first_bit(actv_ports.ports, dev->caps.num_ports); return -1; } EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port); struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev, int port) { unsigned i; struct mlx4_slaves_pport slaves_pport; bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); if (port <= 0 || port > dev->caps.num_ports) return slaves_pport; for (i = 0; i < dev->persist->num_vfs + 1; i++) { struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, i); if (test_bit(port - 1, actv_ports.ports)) set_bit(i, slaves_pport.slaves); } return slaves_pport; } EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport); struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv( struct mlx4_dev *dev, const struct mlx4_active_ports *crit_ports) { unsigned i; struct mlx4_slaves_pport slaves_pport; bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); for (i = 0; i < dev->persist->num_vfs + 1; i++) { struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, i); if (bitmap_equal(crit_ports->ports, actv_ports.ports, dev->caps.num_ports)) set_bit(i, slaves_pport.slaves); } return slaves_pport; } EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv); static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port) { struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports) + 1; int max_port = min_port + bitmap_weight(actv_ports.ports, dev->caps.num_ports); if (port < min_port) port = min_port; else if (port >= max_port) port = max_port - 1; return port; } static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port, int max_tx_rate) { int i; int err; struct mlx4_qos_manager *port_qos; struct mlx4_dev *dev = &priv->dev; struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP]; port_qos = &priv->mfunc.master.qos_ctl[port]; memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP); if (slave > port_qos->num_of_qos_vfs) { mlx4_info(dev, "No available VPP resources for this VF\n"); return -EINVAL; } /* Query for default QoS values from Vport 0 is needed */ err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos); if (err) { mlx4_info(dev, "Failed to query Vport 0 QoS values\n"); return err; } for (i = 0; i < MLX4_NUM_UP; i++) { if (test_bit(i, port_qos->priority_bm) && max_tx_rate) { vpp_qos[i].max_avg_bw = max_tx_rate; vpp_qos[i].enable = 1; } else { /* if user supplied tx_rate == 0, meaning no rate limit * configuration is required. so we are leaving the * value of max_avg_bw as queried from Vport 0. */ vpp_qos[i].enable = 0; } } err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos); if (err) { mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave); return err; } return 0; } static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port, struct mlx4_vport_state *vf_admin) { struct mlx4_qos_manager *info; struct mlx4_priv *priv = mlx4_priv(dev); if (!mlx4_is_master(dev) || !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) return false; info = &priv->mfunc.master.qos_ctl[port]; if (vf_admin->default_vlan != MLX4_VGT && test_bit(vf_admin->default_qos, info->priority_bm)) return true; return false; } static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port, struct mlx4_vport_state *vf_admin, int vlan, int qos) { struct mlx4_vport_state dummy_admin = {0}; if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) || !vf_admin->tx_rate) return true; dummy_admin.default_qos = qos; dummy_admin.default_vlan = vlan; /* VF wants to move to other VST state which is valid with current * rate limit. Either differnt default vlan in VST or other * supported QoS priority. Otherwise we don't allow this change when * the TX rate is still configured. */ if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin)) return true; mlx4_info(dev, "Cannot change VF state to %s while rate is set\n", (vlan == MLX4_VGT) ? "VGT" : "VST"); if (vlan != MLX4_VGT) mlx4_info(dev, "VST priority %d not supported for QoS\n", qos); mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n"); return false; } int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u8 *mac) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_vport_state *s_info; int slave; if (!mlx4_is_master(dev)) return -EPROTONOSUPPORT; if (is_multicast_ether_addr(mac)) return -EINVAL; slave = mlx4_get_slave_indx(dev, vf); if (slave < 0) return -EINVAL; port = mlx4_slaves_closest_port(dev, slave, port); s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; if (s_info->spoofchk && is_zero_ether_addr(mac)) { mlx4_info(dev, "MAC invalidation is not allowed when spoofchk is on\n"); return -EPERM; } s_info->mac = ether_addr_to_u64(mac); mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n", vf, port, s_info->mac); return 0; } EXPORT_SYMBOL_GPL(mlx4_set_vf_mac); int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos, __be16 proto) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_vport_state *vf_admin; struct mlx4_slave_state *slave_state; struct mlx4_vport_oper_state *vf_oper; int slave; if ((!mlx4_is_master(dev)) || !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL)) return -EPROTONOSUPPORT; if ((vlan > 4095) || (qos > 7)) return -EINVAL; if (proto == htons(ETH_P_8021AD) && !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP)) return -EPROTONOSUPPORT; if (proto != htons(ETH_P_8021Q) && proto != htons(ETH_P_8021AD)) return -EINVAL; if ((proto == htons(ETH_P_8021AD)) && ((vlan == 0) || (vlan == MLX4_VGT))) return -EINVAL; slave = mlx4_get_slave_indx(dev, vf); if (slave < 0) return -EINVAL; slave_state = &priv->mfunc.master.slave_state[slave]; if ((proto == htons(ETH_P_8021AD)) && (slave_state->active) && (!slave_state->vst_qinq_supported)) { mlx4_err(dev, "vf %d does not support VST QinQ mode\n", vf); return -EPROTONOSUPPORT; } port = mlx4_slaves_closest_port(dev, slave, port); vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos)) return -EPERM; if ((0 == vlan) && (0 == qos)) vf_admin->default_vlan = MLX4_VGT; else vf_admin->default_vlan = vlan; vf_admin->default_qos = qos; vf_admin->vlan_proto = proto; /* If rate was configured prior to VST, we saved the configured rate * in vf_admin->rate and now, if priority supported we enforce the QoS */ if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) && vf_admin->tx_rate) vf_admin->qos_vport = slave; /* Try to activate new vf state without restart, * this option is not supported while moving to VST QinQ mode. */ if ((proto == htons(ETH_P_8021AD) && vf_oper->state.vlan_proto != proto) || mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) mlx4_info(dev, "updating vf %d port %d config will take effect on next VF restart\n", vf, port); return 0; } EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan); int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate, int max_tx_rate) { int err; int slave; struct mlx4_vport_state *vf_admin; struct mlx4_priv *priv = mlx4_priv(dev); if (!mlx4_is_master(dev) || !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) return -EPROTONOSUPPORT; if (min_tx_rate) { mlx4_info(dev, "Minimum BW share not supported\n"); return -EPROTONOSUPPORT; } slave = mlx4_get_slave_indx(dev, vf); if (slave < 0) return -EINVAL; port = mlx4_slaves_closest_port(dev, slave, port); vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate); if (err) { mlx4_info(dev, "vf %d failed to set rate %d\n", vf, max_tx_rate); return err; } vf_admin->tx_rate = max_tx_rate; /* if VF is not in supported mode (VST with supported prio), * we do not change vport configuration for its QPs, but save * the rate, so it will be enforced when it moves to supported * mode next time. */ if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) { mlx4_info(dev, "rate set for VF %d when not in valid state\n", vf); if (vf_admin->default_vlan != MLX4_VGT) mlx4_info(dev, "VST priority not supported by QoS\n"); else mlx4_info(dev, "VF in VGT mode (needed VST)\n"); mlx4_info(dev, "rate %d take affect when VF moves to valid state\n", max_tx_rate); return 0; } /* If user sets rate 0 assigning default vport for its QPs */ vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT; if (priv->mfunc.master.slave_state[slave].active && dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) mlx4_master_immediate_activate_vlan_qos(priv, slave, port); return 0; } EXPORT_SYMBOL_GPL(mlx4_set_vf_rate); /* mlx4_get_slave_default_vlan - * return true if VST ( default vlan) * if VST, will return vlan & qos (if not NULL) */ bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave, u16 *vlan, u8 *qos) { struct mlx4_vport_oper_state *vp_oper; struct mlx4_priv *priv; priv = mlx4_priv(dev); port = mlx4_slaves_closest_port(dev, slave, port); vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; if (MLX4_VGT != vp_oper->state.default_vlan) { if (vlan) *vlan = vp_oper->state.default_vlan; if (qos) *qos = vp_oper->state.default_qos; return true; } return false; } EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan); int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_vport_state *s_info; int slave; u8 mac[ETH_ALEN]; if ((!mlx4_is_master(dev)) || !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM)) return -EPROTONOSUPPORT; slave = mlx4_get_slave_indx(dev, vf); if (slave < 0) return -EINVAL; port = mlx4_slaves_closest_port(dev, slave, port); s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; u64_to_ether_addr(s_info->mac, mac); if (setting && !is_valid_ether_addr(mac)) { mlx4_info(dev, "Illegal MAC with spoofchk\n"); return -EPERM; } s_info->spoofchk = setting; return 0; } EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk); int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_vport_state *s_info; int slave; if (!mlx4_is_master(dev)) return -EPROTONOSUPPORT; slave = mlx4_get_slave_indx(dev, vf); if (slave < 0) return -EINVAL; s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; ivf->vf = vf; /* need to convert it to a func */ ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff); ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff); ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff); ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff); ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff); ivf->mac[5] = ((s_info->mac) & 0xff); ivf->vlan = s_info->default_vlan; ivf->qos = s_info->default_qos; ivf->vlan_proto = s_info->vlan_proto; if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info)) ivf->max_tx_rate = s_info->tx_rate; else ivf->max_tx_rate = 0; ivf->min_tx_rate = 0; ivf->spoofchk = s_info->spoofchk; ivf->linkstate = s_info->link_state; return 0; } EXPORT_SYMBOL_GPL(mlx4_get_vf_config); int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_vport_state *s_info; int slave; u8 link_stat_event; slave = mlx4_get_slave_indx(dev, vf); if (slave < 0) return -EINVAL; port = mlx4_slaves_closest_port(dev, slave, port); switch (link_state) { case IFLA_VF_LINK_STATE_AUTO: /* get current link state */ if (!priv->sense.do_sense_port[port]) link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; else link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; break; case IFLA_VF_LINK_STATE_ENABLE: link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; break; case IFLA_VF_LINK_STATE_DISABLE: link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; break; default: mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n", link_state, slave, port); return -EINVAL; } s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; s_info->link_state = link_state; /* send event */ mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event); if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) mlx4_dbg(dev, "updating vf %d port %d no link state HW enforcement\n", vf, port); return 0; } EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state); int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, struct mlx4_counter *counter_stats, int reset) { struct mlx4_cmd_mailbox *mailbox = NULL; struct mlx4_counter *tmp_counter; int err; u32 if_stat_in_mod; if (!counter_stats) return -EINVAL; if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) return 0; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); memset(mailbox->buf, 0, sizeof(struct mlx4_counter)); if_stat_in_mod = counter_index; if (reset) if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET; err = mlx4_cmd_box(dev, 0, mailbox->dma, if_stat_in_mod, 0, MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); if (err) { mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n", __func__, counter_index); goto if_stat_out; } tmp_counter = (struct mlx4_counter *)mailbox->buf; counter_stats->counter_mode = tmp_counter->counter_mode; if (counter_stats->counter_mode == 0) { counter_stats->rx_frames = cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) + be64_to_cpu(tmp_counter->rx_frames)); counter_stats->tx_frames = cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) + be64_to_cpu(tmp_counter->tx_frames)); counter_stats->rx_bytes = cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) + be64_to_cpu(tmp_counter->rx_bytes)); counter_stats->tx_bytes = cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) + be64_to_cpu(tmp_counter->tx_bytes)); } if_stat_out: mlx4_free_cmd_mailbox(dev, mailbox); return err; } EXPORT_SYMBOL_GPL(mlx4_get_counter_stats); int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx, struct ifla_vf_stats *vf_stats) { struct mlx4_counter tmp_vf_stats; int slave; int err = 0; if (!vf_stats) return -EINVAL; if (!mlx4_is_master(dev)) return -EPROTONOSUPPORT; slave = mlx4_get_slave_indx(dev, vf_idx); if (slave < 0) return -EINVAL; port = mlx4_slaves_closest_port(dev, slave, port); err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats); if (!err && tmp_vf_stats.counter_mode == 0) { vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames); vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames); vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes); vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes); } return err; } EXPORT_SYMBOL_GPL(mlx4_get_vf_stats); int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port) { struct mlx4_priv *priv = mlx4_priv(dev); if (slave < 1 || slave >= dev->num_slaves || port < 1 || port > MLX4_MAX_PORTS) return 0; return priv->mfunc.master.vf_oper[slave].smi_enabled[port] == MLX4_VF_SMI_ENABLED; } EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled); int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port) { struct mlx4_priv *priv = mlx4_priv(dev); if (slave == mlx4_master_func_num(dev)) return 1; if (slave < 1 || slave >= dev->num_slaves || port < 1 || port > MLX4_MAX_PORTS) return 0; return priv->mfunc.master.vf_admin[slave].enable_smi[port] == MLX4_VF_SMI_ENABLED; } EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin); int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port, int enabled) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_active_ports actv_ports = mlx4_get_active_ports( &priv->dev, slave); int min_port = find_first_bit(actv_ports.ports, priv->dev.caps.num_ports) + 1; int max_port = min_port - 1 + bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); if (slave == mlx4_master_func_num(dev)) return 0; if (slave < 1 || slave >= dev->num_slaves || port < 1 || port > MLX4_MAX_PORTS || enabled < 0 || enabled > 1) return -EINVAL; if (min_port == max_port && dev->caps.num_ports > 1) { mlx4_info(dev, "SMI access disallowed for single ported VFs\n"); return -EPROTONOSUPPORT; } priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled; return 0; } EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin);
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