FreeBSD/Linux Kernel Cross Reference
sys/dev/qlxgbe/ql_inline.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2013-2016 Qlogic Corporation
      * All rights reserved.
      *
      *  Redistribution and use in source and binary forms, with or without
      *  modification, are permitted provided that the following conditions
      *  are met:
     *
     *  1. Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *  2. 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.
     *
     *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     *  POSSIBILITY OF SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    /*
     * File: ql_inline.h
     * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
     */
    #ifndef _QL_INLINE_H_
    #define _QL_INLINE_H_
    
    #define QL8_SEMLOCK_TIMEOUT     1000/* QLA8020 Semaphore Lock Timeout 10ms */
    
    /*
     * Inline functions for hardware semaphores
     */
    
    /*
     * Name:        qla_sem_lock
     * Function:    Locks one of the semaphore registers (semaphore 2,3,5 & 7)
     *              If the id_reg is valid, then id_val is written into it.
     *              This is for debugging purpose
     * Returns:     0 on success; otherwise its failed.
     */
    static __inline int
    qla_sem_lock(qla_host_t *ha, uint32_t sem_reg, uint32_t id_reg, uint32_t id_val)
    {
            int count = QL8_SEMLOCK_TIMEOUT;
    
            while (count) {
                    if ((READ_REG32(ha, sem_reg) & BIT_0))
                            break;
                    count--;
    
                    if (!count)
                            return(-1);
                    qla_mdelay(__func__, 10);
            }
            if (id_reg)
                    WRITE_REG32(ha, id_reg, id_val);
    
            return(0);
    }
    
    /*
     * Name:        qla_sem_unlock
     * Function:    Unlocks the semaphore registers (semaphore 2,3,5 & 7)
     *              previously locked by qla_sem_lock()
     */
    static __inline void
    qla_sem_unlock(qla_host_t *ha, uint32_t sem_reg)
    {
            READ_REG32(ha, sem_reg);
    }
    
    static __inline int
    qla_get_ifq_snd_maxlen(qla_host_t *ha)
    {
            return(((NUM_TX_DESCRIPTORS * 4) - 1));
    }
    
    static __inline uint32_t
    qla_get_optics(qla_host_t *ha)
    {
            uint32_t link_speed;
    
            link_speed = READ_REG32(ha, Q8_LINK_SPEED_0);
            if (ha->pci_func == 0)
                    link_speed = link_speed & 0xFF;
            else
                    link_speed = (link_speed >> 8) & 0xFF;
    
            switch (link_speed) {
           case 0x1:
                   link_speed = IFM_100_FX;
                   break;
   
           case 0x10:
                   link_speed = IFM_1000_SX;
                   break;
   
           default:
                   if ((ha->hw.module_type == 0x4) ||
                           (ha->hw.module_type == 0x5) ||
                           (ha->hw.module_type == 0x6))
                           link_speed = (IFM_10G_TWINAX);
                   else
                           link_speed = (IFM_10G_LR | IFM_10G_SR);
                   break;
           }
   
           return(link_speed);
   }
   
   static __inline uint8_t *
   qla_get_mac_addr(qla_host_t *ha)
   {
           return (ha->hw.mac_addr);
   }
   
   static __inline void
   qla_set_hw_rcv_desc(qla_host_t *ha, uint32_t r_idx, uint32_t index,
           uint32_t handle, bus_addr_t paddr, uint32_t buf_size)
   {
           volatile q80_recv_desc_t *rcv_desc;
   
           rcv_desc = (q80_recv_desc_t *)ha->hw.dma_buf.rds_ring[r_idx].dma_b;
   
           rcv_desc += index;
   
           rcv_desc->handle = (uint16_t)handle;
           rcv_desc->buf_size = buf_size;
           rcv_desc->buf_addr = paddr;
   
           return;
   }
   
   static __inline void
   qla_init_hw_rcv_descriptors(qla_host_t *ha)
   {
           int i;
   
           for (i = 0; i < ha->hw.num_rds_rings; i++) 
                   bzero((void *)ha->hw.dma_buf.rds_ring[i].dma_b,
                           (sizeof(q80_recv_desc_t) * NUM_RX_DESCRIPTORS));
   }
   
   #define QLA_LOCK_DEFAULT_MS_TIMEOUT     3000
   
   #ifndef QLA_LOCK_NO_SLEEP
   #define QLA_LOCK_NO_SLEEP               0
   #endif 
   
   static __inline int
   qla_lock(qla_host_t *ha, const char *str, uint32_t timeout_ms,
           uint32_t no_sleep)
   {
           int ret = -1;
   
           while (1) {
                   mtx_lock(&ha->hw_lock);
   
                   if (ha->qla_detach_active || ha->offline) {
                           mtx_unlock(&ha->hw_lock);
                           break;
                   }
   
                   if (!ha->hw_lock_held) {
                           ha->hw_lock_held = 1;
                           ha->qla_lock = str;
                           ret = 0;
                           mtx_unlock(&ha->hw_lock);
                           break;
                   }
                   mtx_unlock(&ha->hw_lock);
   
                   if (--timeout_ms == 0) {
                           ha->hw_lock_failed++;
                           break;
                   } else {
                           if (no_sleep)
                                   DELAY(1000);
                           else
                                   qla_mdelay(__func__, 1);
                   }
           }
   
   //      if (!ha->enable_error_recovery)
   //              device_printf(ha->pci_dev, "%s: %s ret = %d\n", __func__,
   //                      str,ret);
   
           return (ret);
   }
   
   static __inline void
   qla_unlock(qla_host_t *ha, const char *str)
   {
           mtx_lock(&ha->hw_lock);
           ha->hw_lock_held = 0;
           ha->qla_unlock = str;
           mtx_unlock(&ha->hw_lock);
   
   //      if (!ha->enable_error_recovery)
   //              device_printf(ha->pci_dev, "%s: %s\n", __func__, str);
   
           return;
   }
   
   #endif /* #ifndef _QL_INLINE_H_ */

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