307 lines
6.8 KiB
C
307 lines
6.8 KiB
C
/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _QED_HW_H
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#define _QED_HW_H
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#include <linux/types.h>
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#include <linux/bitops.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include "qed.h"
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#include "qed_dev_api.h"
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/* Forward decleration */
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struct qed_ptt;
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enum reserved_ptts {
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RESERVED_PTT_EDIAG,
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RESERVED_PTT_USER_SPACE,
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RESERVED_PTT_MAIN,
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RESERVED_PTT_DPC,
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RESERVED_PTT_MAX
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};
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enum _dmae_cmd_dst_mask {
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DMAE_CMD_DST_MASK_NONE = 0,
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DMAE_CMD_DST_MASK_PCIE = 1,
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DMAE_CMD_DST_MASK_GRC = 2
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};
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enum _dmae_cmd_src_mask {
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DMAE_CMD_SRC_MASK_PCIE = 0,
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DMAE_CMD_SRC_MASK_GRC = 1
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};
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enum _dmae_cmd_crc_mask {
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DMAE_CMD_COMP_CRC_EN_MASK_NONE = 0,
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DMAE_CMD_COMP_CRC_EN_MASK_SET = 1
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};
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/* definitions for DMA constants */
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#define DMAE_GO_VALUE 0x1
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#define DMAE_COMPLETION_VAL 0xD1AE
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#define DMAE_CMD_ENDIANITY 0x2
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#define DMAE_CMD_SIZE 14
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#define DMAE_CMD_SIZE_TO_FILL (DMAE_CMD_SIZE - 5)
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#define DMAE_MIN_WAIT_TIME 0x2
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#define DMAE_MAX_CLIENTS 32
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/**
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* @brief qed_gtt_init - Initialize GTT windows
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*
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* @param p_hwfn
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*/
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void qed_gtt_init(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_ptt_invalidate - Forces all ptt entries to be re-configured
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*
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* @param p_hwfn
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*/
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void qed_ptt_invalidate(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_ptt_pool_alloc - Allocate and initialize PTT pool
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*
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* @param p_hwfn
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*
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* @return struct _qed_status - success (0), negative - error.
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*/
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int qed_ptt_pool_alloc(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_ptt_pool_free -
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*
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* @param p_hwfn
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*/
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void qed_ptt_pool_free(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_ptt_get_hw_addr - Get PTT's GRC/HW address
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*
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* @param p_hwfn
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* @param p_ptt
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*
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* @return u32
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*/
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u32 qed_ptt_get_hw_addr(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt);
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/**
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* @brief qed_ptt_get_bar_addr - Get PPT's external BAR address
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*
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* @param p_hwfn
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* @param p_ptt
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*
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* @return u32
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*/
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u32 qed_ptt_get_bar_addr(struct qed_ptt *p_ptt);
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/**
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* @brief qed_ptt_set_win - Set PTT Window's GRC BAR address
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*
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* @param p_hwfn
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* @param new_hw_addr
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* @param p_ptt
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*/
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void qed_ptt_set_win(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u32 new_hw_addr);
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/**
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* @brief qed_get_reserved_ptt - Get a specific reserved PTT
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*
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* @param p_hwfn
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* @param ptt_idx
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*
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* @return struct qed_ptt *
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*/
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struct qed_ptt *qed_get_reserved_ptt(struct qed_hwfn *p_hwfn,
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enum reserved_ptts ptt_idx);
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/**
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* @brief qed_wr - Write value to BAR using the given ptt
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*
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* @param p_hwfn
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* @param p_ptt
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* @param val
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* @param hw_addr
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*/
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void qed_wr(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u32 hw_addr,
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u32 val);
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/**
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* @brief qed_rd - Read value from BAR using the given ptt
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*
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* @param p_hwfn
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* @param p_ptt
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* @param val
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* @param hw_addr
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*/
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u32 qed_rd(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u32 hw_addr);
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/**
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* @brief qed_memcpy_from - copy n bytes from BAR using the given
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* ptt
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*
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* @param p_hwfn
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* @param p_ptt
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* @param dest
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* @param hw_addr
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* @param n
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*/
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void qed_memcpy_from(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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void *dest,
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u32 hw_addr,
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size_t n);
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/**
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* @brief qed_memcpy_to - copy n bytes to BAR using the given
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* ptt
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*
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* @param p_hwfn
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* @param p_ptt
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* @param hw_addr
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* @param src
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* @param n
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*/
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void qed_memcpy_to(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u32 hw_addr,
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void *src,
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size_t n);
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/**
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* @brief qed_fid_pretend - pretend to another function when
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* accessing the ptt window. There is no way to unpretend
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* a function. The only way to cancel a pretend is to
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* pretend back to the original function.
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*
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* @param p_hwfn
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* @param p_ptt
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* @param fid - fid field of pxp_pretend structure. Can contain
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* either pf / vf, port/path fields are don't care.
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*/
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void qed_fid_pretend(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u16 fid);
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/**
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* @brief qed_port_pretend - pretend to another port when
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* accessing the ptt window
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*
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* @param p_hwfn
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* @param p_ptt
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* @param port_id - the port to pretend to
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*/
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void qed_port_pretend(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u8 port_id);
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/**
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* @brief qed_port_unpretend - cancel any previously set port
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* pretend
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*
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* @param p_hwfn
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* @param p_ptt
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*/
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void qed_port_unpretend(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt);
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/**
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* @brief qed_vfid_to_concrete - build a concrete FID for a
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* given VF ID
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*
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* @param p_hwfn
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* @param p_ptt
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* @param vfid
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*/
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u32 qed_vfid_to_concrete(struct qed_hwfn *p_hwfn, u8 vfid);
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/**
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* @brief qed_dmae_idx_to_go_cmd - map the idx to dmae cmd
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* this is declared here since other files will require it.
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* @param idx
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*/
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u32 qed_dmae_idx_to_go_cmd(u8 idx);
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/**
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* @brief qed_dmae_info_alloc - Init the dmae_info structure
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* which is part of p_hwfn.
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* @param p_hwfn
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*/
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int qed_dmae_info_alloc(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_dmae_info_free - Free the dmae_info structure
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* which is part of p_hwfn
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*
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* @param p_hwfn
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*/
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void qed_dmae_info_free(struct qed_hwfn *p_hwfn);
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union qed_qm_pq_params {
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struct {
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u8 q_idx;
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} iscsi;
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struct {
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u8 tc;
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} core;
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struct {
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u8 is_vf;
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u8 vf_id;
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u8 tc;
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} eth;
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struct {
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u8 dcqcn;
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u8 qpid; /* roce relative */
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} roce;
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};
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int qed_init_fw_data(struct qed_dev *cdev,
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const u8 *fw_data);
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int qed_dmae_sanity(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt, const char *phase);
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#endif
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