/* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Mellanox Technologies. All rights reserved. * Copyright (c) 2005, 2006 Cisco Systems. 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/completion.h> #include <linux/pci.h> #include <linux/errno.h> #include <linux/sched.h> #include <linux/module.h> #include <linux/slab.h> #include <asm/io.h> #include <rdma/ib_mad.h> #include "mthca_dev.h" #include "mthca_config_reg.h" #include "mthca_cmd.h" #include "mthca_memfree.h" #define CMD_POLL_TOKEN … enum { … }; enum { … }; /* * According to Mellanox code, FW may be starved and never complete * commands. So we can't use strict timeouts described in PRM -- we * just arbitrarily select 60 seconds for now. */ #if 0 /* * Round up and add 1 to make sure we get the full wait time (since we * will be starting in the middle of a jiffy) */ enum { CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1, CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1, CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1, CMD_TIME_CLASS_D = 60 * HZ }; #else enum { … }; #endif enum { … }; struct mthca_cmd_context { … }; static int fw_cmd_doorbell = …; module_param(fw_cmd_doorbell, int, 0644); MODULE_PARM_DESC(…) …; static inline int go_bit(struct mthca_dev *dev) { … } static void mthca_cmd_post_dbell(struct mthca_dev *dev, u64 in_param, u64 out_param, u32 in_modifier, u8 op_modifier, u16 op, u16 token) { … } static int mthca_cmd_post_hcr(struct mthca_dev *dev, u64 in_param, u64 out_param, u32 in_modifier, u8 op_modifier, u16 op, u16 token, int event) { … } static int mthca_cmd_post(struct mthca_dev *dev, u64 in_param, u64 out_param, u32 in_modifier, u8 op_modifier, u16 op, u16 token, int event) { … } static int mthca_status_to_errno(u8 status) { … } static int mthca_cmd_poll(struct mthca_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { … } void mthca_cmd_event(struct mthca_dev *dev, u16 token, u8 status, u64 out_param) { … } static int mthca_cmd_wait(struct mthca_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { … } /* Invoke a command with an output mailbox */ static int mthca_cmd_box(struct mthca_dev *dev, u64 in_param, u64 out_param, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { … } /* Invoke a command with no output parameter */ static int mthca_cmd(struct mthca_dev *dev, u64 in_param, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { … } /* * Invoke a command with an immediate output parameter (and copy the * output into the caller's out_param pointer after the command * executes). */ static int mthca_cmd_imm(struct mthca_dev *dev, u64 in_param, u64 *out_param, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout) { … } int mthca_cmd_init(struct mthca_dev *dev) { … } void mthca_cmd_cleanup(struct mthca_dev *dev) { … } /* * Switch to using events to issue FW commands (should be called after * event queue to command events has been initialized). */ int mthca_cmd_use_events(struct mthca_dev *dev) { … } /* * Switch back to polling (used when shutting down the device) */ void mthca_cmd_use_polling(struct mthca_dev *dev) { … } struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev, gfp_t gfp_mask) { … } void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox) { … } int mthca_SYS_EN(struct mthca_dev *dev) { … } int mthca_SYS_DIS(struct mthca_dev *dev) { … } static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, u64 virt) { … } int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm) { … } int mthca_UNMAP_FA(struct mthca_dev *dev) { … } int mthca_RUN_FW(struct mthca_dev *dev) { … } static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base) { … } int mthca_QUERY_FW(struct mthca_dev *dev) { … } int mthca_ENABLE_LAM(struct mthca_dev *dev) { … } int mthca_DISABLE_LAM(struct mthca_dev *dev) { … } int mthca_QUERY_DDR(struct mthca_dev *dev) { … } int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, struct mthca_dev_lim *dev_lim) { … } static void get_board_id(void *vsd, char *board_id) { … } int mthca_QUERY_ADAPTER(struct mthca_dev *dev, struct mthca_adapter *adapter) { … } int mthca_INIT_HCA(struct mthca_dev *dev, struct mthca_init_hca_param *param) { … } int mthca_INIT_IB(struct mthca_dev *dev, struct mthca_init_ib_param *param, int port) { … } int mthca_CLOSE_IB(struct mthca_dev *dev, int port) { … } int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic) { … } int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, int port) { … } int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt) { … } int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt) { … } int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count) { … } int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm) { … } int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev) { … } int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages) { … } int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int mpt_index) { … } int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int mpt_index) { … } int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int num_mtt) { … } int mthca_SYNC_TPT(struct mthca_dev *dev) { … } int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap, int eq_num) { … } int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int eq_num) { … } int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int eq_num) { … } int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int cq_num) { … } int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int cq_num) { … } int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size) { … } int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int srq_num) { … } int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int srq_num) { … } int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num, struct mthca_mailbox *mailbox) { … } int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit) { … } int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur, enum ib_qp_state next, u32 num, int is_ee, struct mthca_mailbox *mailbox, u32 optmask) { … } int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee, struct mthca_mailbox *mailbox) { … } int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn) { … } int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, const void *in_mad, void *response_mad) { … } int mthca_READ_MGM(struct mthca_dev *dev, int index, struct mthca_mailbox *mailbox) { … } int mthca_WRITE_MGM(struct mthca_dev *dev, int index, struct mthca_mailbox *mailbox) { … } int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox, u16 *hash) { … } int mthca_NOP(struct mthca_dev *dev) { … }
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