cregit-Linux how code gets into the kernel

Release 4.11 drivers/scsi/aacraid/rkt.c

/*
 *      Adaptec AAC series RAID controller driver
 *      (c) Copyright 2001 Red Hat Inc.
 *
 * based on the old aacraid driver that is..
 * Adaptec aacraid device driver for Linux.
 *
 * Copyright (c) 2000-2010 Adaptec, Inc.
 *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
 *               2016-2017 Microsemi Corp. (aacraid@microsemi.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Module Name:
 *  rkt.c
 *
 * Abstract: Hardware miniport for Drawbridge specific hardware functions.
 *
 */

#include <linux/blkdev.h>

#include <scsi/scsi_host.h>

#include "aacraid.h"


#define AAC_NUM_IO_FIB_RKT      (246 - AAC_NUM_MGT_FIB)

/**
 *      aac_rkt_select_comm     -       Select communications method
 *      @dev: Adapter
 *      @comm: communications method
 */


static int aac_rkt_select_comm(struct aac_dev *dev, int comm) { int retval; retval = aac_rx_select_comm(dev, comm); if (comm == AAC_COMM_MESSAGE) { /* * FIB Setup has already been done, but we can minimize the * damage by at least ensuring the OS never issues more * commands than we can handle. The Rocket adapters currently * can only handle 246 commands and 8 AIFs at the same time, * and in fact do notify us accordingly if we negotiate the * FIB size. The problem that causes us to add this check is * to ensure that we do not overdo it with the adapter when a * hard coded FIB override is being utilized. This special * case warrants this half baked, but convenient, check here. */ if (dev->scsi_host_ptr->can_queue > AAC_NUM_IO_FIB_RKT) { dev->init->r7.max_io_commands = cpu_to_le32(AAC_NUM_IO_FIB_RKT + AAC_NUM_MGT_FIB); dev->scsi_host_ptr->can_queue = AAC_NUM_IO_FIB_RKT; } } return retval; }

Contributors

PersonTokensPropCommitsCommitProp
Mark Haverkamp7095.89%150.00%
Raghava Aditya Renukunta34.11%150.00%
Total73100.00%2100.00%

/** * aac_rkt_ioremap * @size: mapping resize request * */
static int aac_rkt_ioremap(struct aac_dev * dev, u32 size) { if (!size) { iounmap(dev->regs.rkt); return 0; } dev->base = dev->regs.rkt = ioremap(dev->base_start, size); if (dev->base == NULL) return -1; dev->IndexRegs = &dev->regs.rkt->IndexRegs; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Mark Haverkamp6986.25%466.67%
Alan Cox1012.50%116.67%
Benjamin Collins11.25%116.67%
Total80100.00%6100.00%

/** * aac_rkt_init - initialize an i960 based AAC card * @dev: device to configure * * Allocate and set up resources for the i960 based AAC variants. The * device_interface in the commregion will be allocated and linked * to the comm region. */
int aac_rkt_init(struct aac_dev *dev) { /* * Fill in the function dispatch table. */ dev->a_ops.adapter_ioremap = aac_rkt_ioremap; dev->a_ops.adapter_comm = aac_rkt_select_comm; return _aac_rx_init(dev); }

Contributors

PersonTokensPropCommitsCommitProp
Mark Haverkamp33100.00%5100.00%
Total33100.00%5100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Mark Haverkamp18892.61%660.00%
Alan Cox104.93%110.00%
Raghava Aditya Renukunta41.97%220.00%
Benjamin Collins10.49%110.00%
Total203100.00%10100.00%
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