/* * linux/drivers/scsi/esas2r/esas2r_ioctl.c * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers * * Copyright (c) 2001-2013 ATTO Technology, Inc. * (mailto:[email protected]) * * 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 * of the License, 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. * * NO WARRANTY * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is * solely responsible for determining the appropriateness of using and * distributing the Program and assumes all risks associated with its * exercise of rights under this Agreement, including but not limited to * the risks and costs of program errors, damage to or loss of data, * programs or equipment, and unavailability or interruption of operations. * * DISCLAIMER OF LIABILITY * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), 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 OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. */ #include <linux/bitfield.h> #include "esas2r.h" /* * Buffered ioctl handlers. A buffered ioctl is one which requires that we * allocate a DMA-able memory area to communicate with the firmware. In * order to prevent continually allocating and freeing consistent memory, * we will allocate a global buffer the first time we need it and re-use * it for subsequent ioctl calls that require it. */ u8 *esas2r_buffered_ioctl; dma_addr_t esas2r_buffered_ioctl_addr; u32 esas2r_buffered_ioctl_size; struct pci_dev *esas2r_buffered_ioctl_pcid; static DEFINE_SEMAPHORE(buffered_ioctl_semaphore, 1); BUFFERED_IOCTL_CALLBACK; BUFFERED_IOCTL_DONE_CALLBACK; struct esas2r_buffered_ioctl { … }; static void complete_fm_api_req(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* Callbacks for building scatter/gather lists for FM API requests */ static u32 get_physaddr_fm_api(struct esas2r_sg_context *sgc, u64 *addr) { … } static u32 get_physaddr_fm_api_header(struct esas2r_sg_context *sgc, u64 *addr) { … } /* Handle EXPRESS_IOCTL_RW_FIRMWARE ioctl with img_type = FW_IMG_FM_API. */ static void do_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi) { … } static void complete_nvr_req(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* Callback for building scatter/gather lists for buffered ioctls */ static u32 get_physaddr_buffered_ioctl(struct esas2r_sg_context *sgc, u64 *addr) { … } static void complete_buffered_ioctl_req(struct esas2r_adapter *a, struct esas2r_request *rq) { … } static u8 handle_buffered_ioctl(struct esas2r_buffered_ioctl *bi) { … } /* SMP ioctl support */ static int smp_ioctl_callback(struct esas2r_adapter *a, struct esas2r_request *rq, struct esas2r_sg_context *sgc, void *context) { … } static u8 handle_smp_ioctl(struct esas2r_adapter *a, struct atto_ioctl_smp *si) { … } /* CSMI ioctl support */ static void esas2r_csmi_ioctl_tunnel_comp_cb(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* Tunnel a CSMI IOCTL to the back end driver for processing. */ static bool csmi_ioctl_tunnel(struct esas2r_adapter *a, union atto_ioctl_csmi *ci, struct esas2r_request *rq, struct esas2r_sg_context *sgc, u32 ctrl_code, u16 target_id) { … } static bool check_lun(struct scsi_lun lun) { … } static int csmi_ioctl_callback(struct esas2r_adapter *a, struct esas2r_request *rq, struct esas2r_sg_context *sgc, void *context) { … } static void csmi_ioctl_done_callback(struct esas2r_adapter *a, struct esas2r_request *rq, void *context) { … } static u8 handle_csmi_ioctl(struct esas2r_adapter *a, struct atto_csmi *ci) { … } /* ATTO HBA ioctl support */ /* Tunnel an ATTO HBA IOCTL to the back end driver for processing. */ static bool hba_ioctl_tunnel(struct esas2r_adapter *a, struct atto_ioctl *hi, struct esas2r_request *rq, struct esas2r_sg_context *sgc) { … } static void scsi_passthru_comp_cb(struct esas2r_adapter *a, struct esas2r_request *rq) { … } static int hba_ioctl_callback(struct esas2r_adapter *a, struct esas2r_request *rq, struct esas2r_sg_context *sgc, void *context) { … } static void hba_ioctl_done_callback(struct esas2r_adapter *a, struct esas2r_request *rq, void *context) { … } u8 handle_hba_ioctl(struct esas2r_adapter *a, struct atto_ioctl *ioctl_hba) { … } int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq, struct esas2r_sas_nvram *data) { … } /* This function only cares about ATTO-specific ioctls (atto_express_ioctl) */ int esas2r_ioctl_handler(void *hostdata, unsigned int cmd, void __user *arg) { … } int esas2r_ioctl(struct scsi_device *sd, unsigned int cmd, void __user *arg) { … } static void free_fw_buffers(struct esas2r_adapter *a) { … } static int allocate_fw_buffers(struct esas2r_adapter *a, u32 length) { … } /* Handle a call to read firmware. */ int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count) { … } /* Handle a call to write firmware. */ int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off, int count) { … } /* Callback for the completion of a VDA request. */ static void vda_complete_req(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* Scatter/gather callback for VDA requests */ static u32 get_physaddr_vda(struct esas2r_sg_context *sgc, u64 *addr) { … } /* Handle a call to read a VDA command. */ int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count) { … } /* Handle a call to write a VDA command. */ int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off, int count) { … } /* Callback for the completion of an FS_API request.*/ static void fs_api_complete_req(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* Scatter/gather callback for VDA requests */ static u32 get_physaddr_fs_api(struct esas2r_sg_context *sgc, u64 *addr) { … } /* Handle a call to read firmware via FS_API. */ int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count) { … } /* Handle a call to write firmware via FS_API. */ int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off, int count) { … }
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