ef544f6312
bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@
1790 lines
48 KiB
C
1790 lines
48 KiB
C
/*
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* Copyright (c) 2004-05 Applied Micro Circuits Corporation.
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* Copyright (c) 2004-05 Vinod Kashyap.
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* Copyright (c) 2000 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* AMCC'S 3ware driver for 9000 series storage controllers.
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*
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* Author: Vinod Kashyap
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*/
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/*
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* FreeBSD specific functions not related to CAM, and other
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* miscellaneous functions.
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*/
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#include <dev/twa/tw_osl_includes.h>
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#include <dev/twa/tw_cl_fwif.h>
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#include <dev/twa/tw_cl_ioctl.h>
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#include <dev/twa/tw_osl_ioctl.h>
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#ifdef TW_OSL_DEBUG
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TW_INT32 TW_DEBUG_LEVEL_FOR_OSL = TW_OSL_DEBUG;
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TW_INT32 TW_OSL_DEBUG_LEVEL_FOR_CL = TW_OSL_DEBUG;
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#endif /* TW_OSL_DEBUG */
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MALLOC_DEFINE(TW_OSLI_MALLOC_CLASS, "twa_commands", "twa commands");
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static d_open_t twa_open;
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static d_close_t twa_close;
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static d_ioctl_t twa_ioctl;
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static struct cdevsw twa_cdevsw = {
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.d_version = D_VERSION,
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.d_open = twa_open,
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.d_close = twa_close,
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.d_ioctl = twa_ioctl,
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.d_name = "twa",
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};
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static devclass_t twa_devclass;
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/*
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* Function name: twa_open
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* Description: Called when the controller is opened.
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* Simply marks the controller as open.
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*
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* Input: dev -- control device corresponding to the ctlr
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* flags -- mode of open
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* fmt -- device type (character/block etc.)
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* proc -- current process
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* Output: None
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* Return value: 0 -- success
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* non-zero-- failure
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*/
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static TW_INT32
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twa_open(struct cdev *dev, TW_INT32 flags, TW_INT32 fmt, d_thread_t *proc)
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{
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TW_INT32 unit = minor(dev);
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struct twa_softc *sc = devclass_get_softc(twa_devclass, unit);
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tw_osli_dbg_dprintf(5, sc, "entered");
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sc->state |= TW_OSLI_CTLR_STATE_OPEN;
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return(0);
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}
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/*
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* Function name: twa_close
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* Description: Called when the controller is closed.
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* Simply marks the controller as not open.
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*
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* Input: dev -- control device corresponding to the ctlr
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* flags -- mode of corresponding open
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* fmt -- device type (character/block etc.)
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* proc -- current process
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* Output: None
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* Return value: 0 -- success
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* non-zero-- failure
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*/
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static TW_INT32
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twa_close(struct cdev *dev, TW_INT32 flags, TW_INT32 fmt, d_thread_t *proc)
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{
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TW_INT32 unit = minor(dev);
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struct twa_softc *sc = devclass_get_softc(twa_devclass, unit);
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tw_osli_dbg_dprintf(5, sc, "entered");
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sc->state &= ~TW_OSLI_CTLR_STATE_OPEN;
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return(0);
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}
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/*
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* Function name: twa_ioctl
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* Description: Called when an ioctl is posted to the controller.
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* Handles any OS Layer specific cmds, passes the rest
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* on to the Common Layer.
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*
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* Input: dev -- control device corresponding to the ctlr
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* cmd -- ioctl cmd
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* buf -- ptr to buffer in kernel memory, which is
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* a copy of the input buffer in user-space
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* flags -- mode of corresponding open
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* proc -- current process
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* Output: buf -- ptr to buffer in kernel memory, which will
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* be copied to the output buffer in user-space
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* Return value: 0 -- success
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* non-zero-- failure
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*/
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static TW_INT32
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twa_ioctl(struct cdev *dev, u_long cmd, caddr_t buf, TW_INT32 flags, d_thread_t *proc)
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{
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struct twa_softc *sc = (struct twa_softc *)(dev->si_drv1);
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TW_INT32 error;
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tw_osli_dbg_dprintf(5, sc, "entered");
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switch (cmd) {
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case TW_OSL_IOCTL_FIRMWARE_PASS_THROUGH:
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tw_osli_dbg_dprintf(6, sc, "ioctl: fw_passthru");
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error = tw_osli_fw_passthru(sc, (TW_INT8 *)buf);
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break;
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case TW_OSL_IOCTL_SCAN_BUS:
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/* Request CAM for a bus scan. */
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tw_osli_dbg_dprintf(6, sc, "ioctl: scan bus");
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error = tw_osli_request_bus_scan(sc);
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break;
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default:
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tw_osli_dbg_dprintf(6, sc, "ioctl: 0x%lx", cmd);
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error = tw_cl_ioctl(&sc->ctlr_handle, cmd, buf);
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break;
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}
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return(error);
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}
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static TW_INT32 twa_probe(device_t dev);
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static TW_INT32 twa_attach(device_t dev);
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static TW_INT32 twa_detach(device_t dev);
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static TW_INT32 twa_shutdown(device_t dev);
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static TW_VOID twa_busdma_lock(TW_VOID *lock_arg, bus_dma_lock_op_t op);
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#ifdef TW_OSLI_DEFERRED_INTR_USED
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static int twa_pci_intr_fast(TW_VOID *arg);
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static TW_VOID twa_deferred_intr(TW_VOID *context, TW_INT32 pending);
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#else
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static TW_VOID twa_pci_intr(TW_VOID *arg);
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#endif /* TW_OSLI_DEFERRED_INTR_USED */
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static TW_INT32 tw_osli_alloc_mem(struct twa_softc *sc);
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static TW_VOID tw_osli_free_resources(struct twa_softc *sc);
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static TW_VOID twa_map_load_data_callback(TW_VOID *arg,
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bus_dma_segment_t *segs, TW_INT32 nsegments, TW_INT32 error);
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static TW_VOID twa_map_load_callback(TW_VOID *arg,
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bus_dma_segment_t *segs, TW_INT32 nsegments, TW_INT32 error);
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static device_method_t twa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, twa_probe),
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DEVMETHOD(device_attach, twa_attach),
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DEVMETHOD(device_detach, twa_detach),
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DEVMETHOD(device_shutdown, twa_shutdown),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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{0, 0}
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};
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static driver_t twa_pci_driver = {
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"twa",
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twa_methods,
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sizeof(struct twa_softc)
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};
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DRIVER_MODULE(twa, pci, twa_pci_driver, twa_devclass, 0, 0);
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MODULE_DEPEND(twa, pci, 1, 1, 1);
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MODULE_DEPEND(twa, cam, 1, 1, 1);
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/*
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* Function name: twa_probe
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* Description: Called at driver load time. Claims 9000 ctlrs.
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*
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* Input: dev -- bus device corresponding to the ctlr
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* Output: None
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* Return value: <= 0 -- success
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* > 0 -- failure
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*/
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static TW_INT32
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twa_probe(device_t dev)
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{
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static TW_UINT8 first_ctlr = 1;
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tw_osli_dbg_printf(3, "entered");
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if (tw_cl_ctlr_supported(pci_get_vendor(dev), pci_get_device(dev))) {
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device_set_desc(dev, TW_OSLI_DEVICE_NAME);
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/* Print the driver version only once. */
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if (first_ctlr) {
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printf("3ware device driver for 9000 series storage "
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"controllers, version: %s\n",
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TW_OSL_DRIVER_VERSION_STRING);
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first_ctlr = 0;
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}
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return(0);
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}
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return(ENXIO);
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}
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/*
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* Function name: twa_attach
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* Description: Allocates pci resources; updates sc; adds a node to the
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* sysctl tree to expose the driver version; makes calls
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* (to the Common Layer) to initialize ctlr, and to
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* attach to CAM.
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*
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* Input: dev -- bus device corresponding to the ctlr
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* Output: None
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* Return value: 0 -- success
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* non-zero-- failure
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*/
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static TW_INT32
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twa_attach(device_t dev)
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{
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struct twa_softc *sc = device_get_softc(dev);
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TW_UINT32 command;
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TW_INT32 bar_num;
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TW_INT32 bar0_offset;
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TW_INT32 bar_size;
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TW_INT32 error;
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tw_osli_dbg_dprintf(3, sc, "entered");
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sc->ctlr_handle.osl_ctlr_ctxt = sc;
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/* Initialize the softc structure. */
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sc->bus_dev = dev;
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sc->device_id = pci_get_device(dev);
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/* Initialize the mutexes right here. */
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sc->io_lock = &(sc->io_lock_handle);
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mtx_init(sc->io_lock, "tw_osl_io_lock", NULL, MTX_SPIN);
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sc->q_lock = &(sc->q_lock_handle);
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mtx_init(sc->q_lock, "tw_osl_q_lock", NULL, MTX_SPIN);
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sysctl_ctx_init(&sc->sysctl_ctxt);
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sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctxt,
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SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
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device_get_nameunit(dev), CTLFLAG_RD, 0, "");
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if (sc->sysctl_tree == NULL) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x2000,
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"Cannot add sysctl tree node",
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ENXIO);
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return(ENXIO);
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}
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SYSCTL_ADD_STRING(&sc->sysctl_ctxt, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "driver_version", CTLFLAG_RD,
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TW_OSL_DRIVER_VERSION_STRING, 0, "TWA driver version");
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/* Make sure we are going to be able to talk to this board. */
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command = pci_read_config(dev, PCIR_COMMAND, 2);
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if ((command & PCIM_CMD_PORTEN) == 0) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x2001,
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"Register window not available",
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ENXIO);
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tw_osli_free_resources(sc);
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return(ENXIO);
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}
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/* Force the busmaster enable bit on, in case the BIOS forgot. */
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command |= PCIM_CMD_BUSMASTEREN;
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pci_write_config(dev, PCIR_COMMAND, command, 2);
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/* Allocate the PCI register window. */
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if ((error = tw_cl_get_pci_bar_info(sc->device_id, TW_CL_BAR_TYPE_MEM,
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&bar_num, &bar0_offset, &bar_size))) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x201F,
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"Can't get PCI BAR info",
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error);
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tw_osli_free_resources(sc);
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return(error);
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}
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sc->reg_res_id = PCIR_BARS + bar0_offset;
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if ((sc->reg_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
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&(sc->reg_res_id), 0, ~0, 1, RF_ACTIVE))
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== NULL) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x2002,
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"Can't allocate register window",
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ENXIO);
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tw_osli_free_resources(sc);
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return(ENXIO);
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}
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sc->bus_tag = rman_get_bustag(sc->reg_res);
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sc->bus_handle = rman_get_bushandle(sc->reg_res);
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/* Allocate and register our interrupt. */
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sc->irq_res_id = 0;
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if ((sc->irq_res = bus_alloc_resource(sc->bus_dev, SYS_RES_IRQ,
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&(sc->irq_res_id), 0, ~0, 1,
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RF_SHAREABLE | RF_ACTIVE)) == NULL) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x2003,
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"Can't allocate interrupt",
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ENXIO);
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tw_osli_free_resources(sc);
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return(ENXIO);
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}
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if ((error = bus_setup_intr(sc->bus_dev, sc->irq_res,
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INTR_TYPE_CAM | INTR_MPSAFE,
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#ifdef TW_OSLI_DEFERRED_INTR_USED
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twa_pci_intr_fast, NULL,
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#else
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NULL, twa_pci_intr,
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#endif
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sc, &sc->intr_handle))) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x2004,
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"Can't set up interrupt",
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error);
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tw_osli_free_resources(sc);
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return(error);
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}
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#ifdef TW_OSLI_DEFERRED_INTR_USED
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TASK_INIT(&sc->deferred_intr_callback, 0, twa_deferred_intr, sc);
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#endif /* TW_OSLI_DEFERRED_INTR_USED */
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if ((error = tw_osli_alloc_mem(sc))) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
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0x2005,
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"Memory allocation failure",
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error);
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tw_osli_free_resources(sc);
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return(error);
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}
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|
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/* Initialize the Common Layer for this controller. */
|
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if ((error = tw_cl_init_ctlr(&sc->ctlr_handle, sc->flags, sc->device_id,
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TW_OSLI_MAX_NUM_IOS, TW_OSLI_MAX_NUM_AENS,
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sc->non_dma_mem, sc->dma_mem,
|
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sc->dma_mem_phys
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#ifdef TW_OSL_FLASH_FIRMWARE
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, sc->flash_dma_mem, sc->flash_dma_mem_phys
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#endif /* TW_OSL_FLASH_FIRMWARE */
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))) {
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tw_osli_printf(sc, "error = %d",
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TW_CL_SEVERITY_ERROR_STRING,
|
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TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
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0x2006,
|
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"Failed to initialize Common Layer/controller",
|
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error);
|
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tw_osli_free_resources(sc);
|
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return(error);
|
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}
|
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|
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#ifdef TW_OSL_FLASH_FIRMWARE
|
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/* Free any memory allocated for firmware flashing. */
|
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if (sc->flash_dma_mem) {
|
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bus_dmamap_unload(sc->flash_tag, sc->flash_map);
|
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bus_dmamem_free(sc->flash_tag, sc->flash_dma_mem,
|
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sc->flash_map);
|
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}
|
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if (sc->flash_tag)
|
|
bus_dma_tag_destroy(sc->flash_tag);
|
|
/*
|
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* Set flash_tag and flash_dma_mem to 0, so we don't try freeing them
|
|
* again, later.
|
|
*/
|
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sc->flash_tag = 0;
|
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sc->flash_dma_mem = 0;
|
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#endif /* TW_OSL_FLASH_FIRMWARE */
|
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|
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/* Create the control device. */
|
|
sc->ctrl_dev = make_dev(&twa_cdevsw, device_get_unit(sc->bus_dev),
|
|
UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
|
|
"twa%d", device_get_unit(sc->bus_dev));
|
|
sc->ctrl_dev->si_drv1 = sc;
|
|
|
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if ((error = tw_osli_cam_attach(sc))) {
|
|
tw_osli_free_resources(sc);
|
|
tw_osli_printf(sc, "error = %d",
|
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TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2007,
|
|
"Failed to initialize CAM",
|
|
error);
|
|
return(error);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_alloc_mem
|
|
* Description: Allocates memory needed both by CL and OSL.
|
|
*
|
|
* Input: sc -- OSL internal controller context
|
|
* Output: None
|
|
* Return value: 0 -- success
|
|
* non-zero-- failure
|
|
*/
|
|
static TW_INT32
|
|
tw_osli_alloc_mem(struct twa_softc *sc)
|
|
{
|
|
struct tw_osli_req_context *req;
|
|
TW_UINT32 max_sg_elements;
|
|
TW_UINT32 non_dma_mem_size;
|
|
TW_UINT32 dma_mem_size;
|
|
#ifdef TW_OSL_FLASH_FIRMWARE
|
|
TW_UINT32 flash_dma_mem_size;
|
|
#endif /* TW_OSL_FLASH_FIRMWARE */
|
|
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
|
|
TW_UINT32 per_req_dma_mem_size;
|
|
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
TW_INT32 error;
|
|
TW_INT32 i;
|
|
|
|
tw_osli_dbg_dprintf(3, sc, "entered");
|
|
|
|
sc->flags |= (sizeof(bus_addr_t) == 8) ? TW_CL_64BIT_ADDRESSES : 0;
|
|
sc->flags |= (sizeof(bus_size_t) == 8) ? TW_CL_64BIT_SG_LENGTH : 0;
|
|
#ifdef TW_OSL_FLASH_FIRMWARE
|
|
sc->flags |= TW_CL_FLASH_FIRMWARE;
|
|
#endif /* TW_OSL_FLASH_FIRMWARE */
|
|
#ifdef TW_OSLI_DEFERRED_INTR_USED
|
|
sc->flags |= TW_CL_DEFERRED_INTR_USED;
|
|
#endif /* TW_OSLI_DEFERRED_INTR_USED */
|
|
|
|
max_sg_elements = (sizeof(bus_addr_t) == 8) ?
|
|
TW_CL_MAX_64BIT_SG_ELEMENTS : TW_CL_MAX_32BIT_SG_ELEMENTS;
|
|
|
|
if ((error = tw_cl_get_mem_requirements(&sc->ctlr_handle, sc->flags,
|
|
sc->device_id, TW_OSLI_MAX_NUM_IOS, TW_OSLI_MAX_NUM_AENS,
|
|
&(sc->alignment), &(sc->sg_size_factor),
|
|
&non_dma_mem_size, &dma_mem_size
|
|
#ifdef TW_OSL_FLASH_FIRMWARE
|
|
, &flash_dma_mem_size
|
|
#endif /* TW_OSL_FLASH_FIRMWARE */
|
|
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
|
|
, &per_req_dma_mem_size
|
|
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
))) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2008,
|
|
"Can't get Common Layer's memory requirements",
|
|
error);
|
|
return(error);
|
|
}
|
|
|
|
if ((sc->non_dma_mem = malloc(non_dma_mem_size, TW_OSLI_MALLOC_CLASS,
|
|
M_WAITOK)) == NULL) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2009,
|
|
"Can't allocate non-dma memory",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
/* Create the parent dma tag. */
|
|
if (bus_dma_tag_create(NULL, /* parent */
|
|
sc->alignment, /* alignment */
|
|
0, /* boundary */
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
TW_CL_MAX_IO_SIZE, /* maxsize */
|
|
max_sg_elements, /* nsegments */
|
|
TW_CL_MAX_IO_SIZE, /* maxsegsize */
|
|
0, /* flags */
|
|
NULL, /* lockfunc */
|
|
NULL, /* lockfuncarg */
|
|
&sc->parent_tag /* tag */)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x200A,
|
|
"Can't allocate parent DMA tag",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
/* Create a dma tag for Common Layer's DMA'able memory (dma_mem). */
|
|
if (bus_dma_tag_create(sc->parent_tag, /* parent */
|
|
sc->alignment, /* alignment */
|
|
0, /* boundary */
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
|
|
(TW_OSLI_MAX_NUM_IOS *
|
|
per_req_dma_mem_size) +
|
|
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
dma_mem_size, /* maxsize */
|
|
1, /* nsegments */
|
|
BUS_SPACE_MAXSIZE, /* maxsegsize */
|
|
0, /* flags */
|
|
NULL, /* lockfunc */
|
|
NULL, /* lockfuncarg */
|
|
&sc->cmd_tag /* tag */)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x200B,
|
|
"Can't allocate DMA tag for Common Layer's "
|
|
"DMA'able memory",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
if (bus_dmamem_alloc(sc->cmd_tag, &sc->dma_mem,
|
|
BUS_DMA_NOWAIT, &sc->cmd_map)) {
|
|
/* Try a second time. */
|
|
if (bus_dmamem_alloc(sc->cmd_tag, &sc->dma_mem,
|
|
BUS_DMA_NOWAIT, &sc->cmd_map)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x200C,
|
|
"Can't allocate DMA'able memory for the"
|
|
"Common Layer",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
}
|
|
|
|
bus_dmamap_load(sc->cmd_tag, sc->cmd_map, sc->dma_mem,
|
|
dma_mem_size, twa_map_load_callback,
|
|
&sc->dma_mem_phys, 0);
|
|
|
|
|
|
#ifdef TW_OSL_FLASH_FIRMWARE
|
|
/*
|
|
* Create a dma tag for Common Layer's DMA'able memory,
|
|
* used to flash firmware (flash_dma_mem).
|
|
*/
|
|
if (bus_dma_tag_create(sc->parent_tag, /* parent */
|
|
sc->alignment, /* alignment */
|
|
0, /* boundary */
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
flash_dma_mem_size, /* maxsize */
|
|
1, /* nsegments */
|
|
flash_dma_mem_size, /* maxsegsize */
|
|
0, /* flags */
|
|
NULL, /* lockfunc */
|
|
NULL, /* lockfuncarg */
|
|
&sc->flash_tag /* tag */)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x200D,
|
|
"Can't allocate DMA tag for Common Layer's "
|
|
"firmware flash memory",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
if (bus_dmamem_alloc(sc->flash_tag, &sc->flash_dma_mem,
|
|
BUS_DMA_NOWAIT, &sc->flash_map)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x200E,
|
|
"Can't allocate DMA'able memory for Common Layer's "
|
|
"firmware flash",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
bus_dmamap_load(sc->flash_tag, sc->flash_map, sc->flash_dma_mem,
|
|
flash_dma_mem_size, twa_map_load_callback,
|
|
&sc->flash_dma_mem_phys, 0);
|
|
|
|
#endif /* TW_OSL_FLASH_FIRMWARE */
|
|
|
|
/*
|
|
* Create a dma tag for data buffers; size will be the maximum
|
|
* possible I/O size (128kB).
|
|
*/
|
|
if (bus_dma_tag_create(sc->parent_tag, /* parent */
|
|
sc->alignment, /* alignment */
|
|
0, /* boundary */
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
TW_CL_MAX_IO_SIZE, /* maxsize */
|
|
max_sg_elements, /* nsegments */
|
|
TW_CL_MAX_IO_SIZE, /* maxsegsize */
|
|
BUS_DMA_ALLOCNOW, /* flags */
|
|
twa_busdma_lock, /* lockfunc */
|
|
sc->io_lock, /* lockfuncarg */
|
|
&sc->dma_tag /* tag */)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x200F,
|
|
"Can't allocate DMA tag for data buffers",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
/*
|
|
* Create a dma tag for ioctl data buffers; size will be the maximum
|
|
* possible I/O size (128kB).
|
|
*/
|
|
if (bus_dma_tag_create(sc->parent_tag, /* parent */
|
|
sc->alignment, /* alignment */
|
|
0, /* boundary */
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
TW_CL_MAX_IO_SIZE, /* maxsize */
|
|
max_sg_elements, /* nsegments */
|
|
TW_CL_MAX_IO_SIZE, /* maxsegsize */
|
|
BUS_DMA_ALLOCNOW, /* flags */
|
|
twa_busdma_lock, /* lockfunc */
|
|
sc->io_lock, /* lockfuncarg */
|
|
&sc->ioctl_tag /* tag */)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2010,
|
|
"Can't allocate DMA tag for ioctl data buffers",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
/* Create just one map for all ioctl request data buffers. */
|
|
if (bus_dmamap_create(sc->ioctl_tag, 0, &sc->ioctl_map)) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2011,
|
|
"Can't create ioctl map",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
|
|
/* Initialize request queues. */
|
|
tw_osli_req_q_init(sc, TW_OSLI_FREE_Q);
|
|
tw_osli_req_q_init(sc, TW_OSLI_BUSY_Q);
|
|
|
|
if ((sc->req_ctxt_buf = (struct tw_osli_req_context *)
|
|
malloc((sizeof(struct tw_osli_req_context) *
|
|
TW_OSLI_MAX_NUM_IOS),
|
|
TW_OSLI_MALLOC_CLASS, M_WAITOK)) == NULL) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2012,
|
|
"Failed to allocate request packets",
|
|
ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
bzero(sc->req_ctxt_buf,
|
|
sizeof(struct tw_osli_req_context) * TW_OSLI_MAX_NUM_IOS);
|
|
|
|
for (i = 0; i < TW_OSLI_MAX_NUM_IOS; i++) {
|
|
req = &(sc->req_ctxt_buf[i]);
|
|
req->ctlr = sc;
|
|
if (bus_dmamap_create(sc->dma_tag, 0, &req->dma_map)) {
|
|
tw_osli_printf(sc, "request # = %d, error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2013,
|
|
"Can't create dma map",
|
|
i, ENOMEM);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
|
|
|
|
req->req_pkt.dma_mem = ((TW_INT8 *)(sc->dma_mem)) +
|
|
(i * per_req_dma_mem_size);
|
|
req->req_pkt.dma_mem_phys = sc->dma_mem_phys +
|
|
(i * per_req_dma_mem_size);
|
|
|
|
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
|
|
/* Insert request into the free queue. */
|
|
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
|
|
}
|
|
|
|
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
|
|
|
|
sc->dma_mem = ((TW_INT8 *)(sc->dma_mem)) +
|
|
(TW_OSLI_MAX_NUM_IOS * per_req_dma_mem_size);
|
|
sc->dma_mem_phys += (TW_OSLI_MAX_NUM_IOS * per_req_dma_mem_size);
|
|
|
|
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_free_resources
|
|
* Description: Performs clean-up at the time of going down.
|
|
*
|
|
* Input: sc -- ptr to OSL internal ctlr context
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
static TW_VOID
|
|
tw_osli_free_resources(struct twa_softc *sc)
|
|
{
|
|
struct tw_osli_req_context *req;
|
|
TW_INT32 error = 0;
|
|
|
|
tw_osli_dbg_dprintf(3, sc, "entered");
|
|
|
|
/* Detach from CAM */
|
|
tw_osli_cam_detach(sc);
|
|
|
|
if (sc->req_ctxt_buf)
|
|
while ((req = tw_osli_req_q_remove_head(sc, TW_OSLI_FREE_Q)) !=
|
|
NULL)
|
|
if ((error = bus_dmamap_destroy(sc->dma_tag,
|
|
req->dma_map)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dmamap_destroy(dma) returned %d",
|
|
error);
|
|
|
|
if ((sc->ioctl_tag) && (sc->ioctl_map))
|
|
if ((error = bus_dmamap_destroy(sc->ioctl_tag, sc->ioctl_map)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dmamap_destroy(ioctl) returned %d", error);
|
|
|
|
/* Free all memory allocated so far. */
|
|
if (sc->req_ctxt_buf)
|
|
free(sc->req_ctxt_buf, TW_OSLI_MALLOC_CLASS);
|
|
|
|
if (sc->non_dma_mem)
|
|
free(sc->non_dma_mem, TW_OSLI_MALLOC_CLASS);
|
|
|
|
if (sc->dma_mem) {
|
|
bus_dmamap_unload(sc->cmd_tag, sc->cmd_map);
|
|
bus_dmamem_free(sc->cmd_tag, sc->dma_mem,
|
|
sc->cmd_map);
|
|
}
|
|
if (sc->cmd_tag)
|
|
if ((error = bus_dma_tag_destroy(sc->cmd_tag)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dma_tag_destroy(cmd) returned %d", error);
|
|
|
|
|
|
#ifdef TW_OSL_FLASH_FIRMWARE
|
|
|
|
if (sc->flash_dma_mem) {
|
|
/* In case this piece of memory has already been freed. */
|
|
bus_dmamap_unload(sc->flash_tag, sc->flash_map);
|
|
bus_dmamem_free(sc->flash_tag, sc->flash_dma_mem,
|
|
sc->flash_map);
|
|
}
|
|
if (sc->flash_tag)
|
|
if ((error = bus_dma_tag_destroy(sc->flash_tag)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dma_tag_destroy(flash) returned %d", error);
|
|
|
|
#endif /* TW_OSL_FLASH_FIRMWARE */
|
|
|
|
if (sc->dma_tag)
|
|
if ((error = bus_dma_tag_destroy(sc->dma_tag)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dma_tag_destroy(dma) returned %d", error);
|
|
|
|
if (sc->ioctl_tag)
|
|
if ((error = bus_dma_tag_destroy(sc->ioctl_tag)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dma_tag_destroy(ioctl) returned %d", error);
|
|
|
|
if (sc->parent_tag)
|
|
if ((error = bus_dma_tag_destroy(sc->parent_tag)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"dma_tag_destroy(parent) returned %d", error);
|
|
|
|
|
|
/* Disconnect the interrupt handler. */
|
|
if (sc->intr_handle)
|
|
if ((error = bus_teardown_intr(sc->bus_dev,
|
|
sc->irq_res, sc->intr_handle)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"teardown_intr returned %d", error);
|
|
|
|
if (sc->irq_res != NULL)
|
|
if ((error = bus_release_resource(sc->bus_dev,
|
|
SYS_RES_IRQ, sc->irq_res_id, sc->irq_res)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"release_resource(irq) returned %d", error);
|
|
|
|
|
|
/* Release the register window mapping. */
|
|
if (sc->reg_res != NULL)
|
|
if ((error = bus_release_resource(sc->bus_dev,
|
|
SYS_RES_MEMORY, sc->reg_res_id, sc->reg_res)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"release_resource(io) returned %d", error);
|
|
|
|
|
|
/* Destroy the control device. */
|
|
if (sc->ctrl_dev != (struct cdev *)NULL)
|
|
destroy_dev(sc->ctrl_dev);
|
|
|
|
if ((error = sysctl_ctx_free(&sc->sysctl_ctxt)))
|
|
tw_osli_dbg_dprintf(1, sc,
|
|
"sysctl_ctx_free returned %d", error);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_detach
|
|
* Description: Called when the controller is being detached from
|
|
* the pci bus.
|
|
*
|
|
* Input: dev -- bus device corresponding to the ctlr
|
|
* Output: None
|
|
* Return value: 0 -- success
|
|
* non-zero-- failure
|
|
*/
|
|
static TW_INT32
|
|
twa_detach(device_t dev)
|
|
{
|
|
struct twa_softc *sc = device_get_softc(dev);
|
|
TW_INT32 error;
|
|
|
|
tw_osli_dbg_dprintf(3, sc, "entered");
|
|
|
|
error = EBUSY;
|
|
if (sc->state & TW_OSLI_CTLR_STATE_OPEN) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2014,
|
|
"Device open",
|
|
error);
|
|
goto out;
|
|
}
|
|
|
|
/* Shut the controller down. */
|
|
if ((error = twa_shutdown(dev)))
|
|
goto out;
|
|
|
|
/* Free all resources associated with this controller. */
|
|
tw_osli_free_resources(sc);
|
|
error = 0;
|
|
|
|
out:
|
|
return(error);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_shutdown
|
|
* Description: Called at unload/shutdown time. Lets the controller
|
|
* know that we are going down.
|
|
*
|
|
* Input: dev -- bus device corresponding to the ctlr
|
|
* Output: None
|
|
* Return value: 0 -- success
|
|
* non-zero-- failure
|
|
*/
|
|
static TW_INT32
|
|
twa_shutdown(device_t dev)
|
|
{
|
|
struct twa_softc *sc = device_get_softc(dev);
|
|
TW_INT32 error = 0;
|
|
|
|
tw_osli_dbg_dprintf(3, sc, "entered");
|
|
|
|
/* Disconnect from the controller. */
|
|
if ((error = tw_cl_shutdown_ctlr(&(sc->ctlr_handle), 0))) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2015,
|
|
"Failed to shutdown Common Layer/controller",
|
|
error);
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_busdma_lock
|
|
* Description: Function to provide synchronization during busdma_swi.
|
|
*
|
|
* Input: lock_arg -- lock mutex sent as argument
|
|
* op -- operation (lock/unlock) expected of the function
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
twa_busdma_lock(TW_VOID *lock_arg, bus_dma_lock_op_t op)
|
|
{
|
|
struct mtx *lock;
|
|
|
|
lock = (struct mtx *)lock_arg;
|
|
switch (op) {
|
|
case BUS_DMA_LOCK:
|
|
mtx_lock_spin(lock);
|
|
break;
|
|
|
|
case BUS_DMA_UNLOCK:
|
|
mtx_unlock_spin(lock);
|
|
break;
|
|
|
|
default:
|
|
panic("Unknown operation 0x%x for twa_busdma_lock!", op);
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef TW_OSLI_DEFERRED_INTR_USED
|
|
/*
|
|
* Function name: twa_pci_intr_fast
|
|
* Description: Interrupt handler. Wrapper for twa_interrupt.
|
|
*
|
|
* Input: arg -- ptr to OSL internal ctlr context
|
|
* Output: FILTER_HANDLED or FILTER_STRAY
|
|
* Return value: None
|
|
*/
|
|
static int
|
|
twa_pci_intr_fast(TW_VOID *arg)
|
|
{
|
|
struct twa_softc *sc = (struct twa_softc *)arg;
|
|
|
|
tw_osli_dbg_dprintf(10, sc, "entered");
|
|
if (tw_cl_interrupt(&(sc->ctlr_handle))) {
|
|
tw_cl_deferred_interrupt(&(sc->ctlr_handle));
|
|
return(FILTER_HANDLED);
|
|
}
|
|
return(FILTER_STRAY);
|
|
}
|
|
#else
|
|
/*
|
|
* Function name: twa_pci_intr
|
|
* Description: Interrupt handler. Wrapper for twa_interrupt.
|
|
*
|
|
* Input: arg -- ptr to OSL internal ctlr context
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
static TW_VOID
|
|
twa_pci_intr(TW_VOID *arg)
|
|
{
|
|
struct twa_softc *sc = (struct twa_softc *)arg;
|
|
|
|
tw_osli_dbg_dprintf(10, sc, "entered");
|
|
if (tw_cl_interrupt(&(sc->ctlr_handle)))
|
|
tw_cl_deferred_interrupt(&(sc->ctlr_handle));
|
|
}
|
|
#endif
|
|
|
|
#ifdef TW_OSLI_DEFERRED_INTR_USED
|
|
|
|
/*
|
|
* Function name: twa_deferred_intr
|
|
* Description: Deferred interrupt handler.
|
|
*
|
|
* Input: context -- ptr to OSL internal ctlr context
|
|
* pending -- not used
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
static TW_VOID
|
|
twa_deferred_intr(TW_VOID *context, TW_INT32 pending)
|
|
{
|
|
struct twa_softc *sc = (struct twa_softc *)context;
|
|
|
|
tw_osli_dbg_dprintf(10, sc, "entered");
|
|
|
|
tw_cl_deferred_interrupt(&(sc->ctlr_handle));
|
|
}
|
|
|
|
#endif /* TW_OSLI_DEFERRED_INTR_USED */
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_fw_passthru
|
|
* Description: Builds a fw passthru cmd pkt, and submits it to CL.
|
|
*
|
|
* Input: sc -- ptr to OSL internal ctlr context
|
|
* buf -- ptr to ioctl pkt understood by CL
|
|
* Output: None
|
|
* Return value: 0 -- success
|
|
* non-zero-- failure
|
|
*/
|
|
TW_INT32
|
|
tw_osli_fw_passthru(struct twa_softc *sc, TW_INT8 *buf)
|
|
{
|
|
struct tw_osli_req_context *req;
|
|
struct tw_osli_ioctl_no_data_buf *user_buf =
|
|
(struct tw_osli_ioctl_no_data_buf *)buf;
|
|
TW_TIME end_time;
|
|
TW_UINT32 timeout = 60;
|
|
TW_UINT32 data_buf_size_adjusted;
|
|
struct tw_cl_req_packet *req_pkt;
|
|
struct tw_cl_passthru_req_packet *pt_req;
|
|
TW_INT32 error;
|
|
|
|
tw_osli_dbg_dprintf(5, sc, "ioctl: passthru");
|
|
|
|
if ((req = tw_osli_get_request(sc)) == NULL)
|
|
return(EBUSY);
|
|
|
|
req->req_handle.osl_req_ctxt = req;
|
|
req->orig_req = buf;
|
|
req->flags |= TW_OSLI_REQ_FLAGS_PASSTHRU;
|
|
|
|
req_pkt = &(req->req_pkt);
|
|
req_pkt->status = 0;
|
|
req_pkt->tw_osl_callback = tw_osl_complete_passthru;
|
|
/* Let the Common Layer retry the request on cmd queue full. */
|
|
req_pkt->flags |= TW_CL_REQ_RETRY_ON_BUSY;
|
|
|
|
pt_req = &(req_pkt->gen_req_pkt.pt_req);
|
|
/*
|
|
* Make sure that the data buffer sent to firmware is a
|
|
* 512 byte multiple in size.
|
|
*/
|
|
data_buf_size_adjusted =
|
|
(user_buf->driver_pkt.buffer_length +
|
|
(sc->sg_size_factor - 1)) & ~(sc->sg_size_factor - 1);
|
|
if ((req->length = data_buf_size_adjusted)) {
|
|
if ((req->data = malloc(data_buf_size_adjusted,
|
|
TW_OSLI_MALLOC_CLASS, M_WAITOK)) == NULL) {
|
|
error = ENOMEM;
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2016,
|
|
"Could not alloc mem for "
|
|
"fw_passthru data_buf",
|
|
error);
|
|
goto fw_passthru_err;
|
|
}
|
|
/* Copy the payload. */
|
|
if ((error = copyin((TW_VOID *)(user_buf->pdata),
|
|
req->data,
|
|
user_buf->driver_pkt.buffer_length)) != 0) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2017,
|
|
"Could not copyin fw_passthru data_buf",
|
|
error);
|
|
goto fw_passthru_err;
|
|
}
|
|
pt_req->sgl_entries = 1; /* will be updated during mapping */
|
|
req->flags |= (TW_OSLI_REQ_FLAGS_DATA_IN |
|
|
TW_OSLI_REQ_FLAGS_DATA_OUT);
|
|
} else
|
|
pt_req->sgl_entries = 0; /* no payload */
|
|
|
|
pt_req->cmd_pkt = (TW_VOID *)(&(user_buf->cmd_pkt));
|
|
pt_req->cmd_pkt_length = sizeof(struct tw_cl_command_packet);
|
|
|
|
if ((error = tw_osli_map_request(req)))
|
|
goto fw_passthru_err;
|
|
|
|
end_time = tw_osl_get_local_time() + timeout;
|
|
while (req->state != TW_OSLI_REQ_STATE_COMPLETE) {
|
|
req->flags |= TW_OSLI_REQ_FLAGS_SLEEPING;
|
|
|
|
error = tsleep(req, PRIBIO, "twa_passthru", timeout * hz);
|
|
|
|
if (!(req->flags & TW_OSLI_REQ_FLAGS_SLEEPING))
|
|
error = 0;
|
|
req->flags &= ~TW_OSLI_REQ_FLAGS_SLEEPING;
|
|
|
|
if (! error) {
|
|
if (((error = req->error_code)) ||
|
|
((error = (req->state !=
|
|
TW_OSLI_REQ_STATE_COMPLETE))) ||
|
|
((error = req_pkt->status)))
|
|
goto fw_passthru_err;
|
|
break;
|
|
}
|
|
|
|
if (req_pkt->status) {
|
|
error = req_pkt->status;
|
|
goto fw_passthru_err;
|
|
}
|
|
|
|
if (error == EWOULDBLOCK) {
|
|
/* Time out! */
|
|
tw_osli_printf(sc, "request = %p",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2018,
|
|
"Passthru request timed out!",
|
|
req);
|
|
/*
|
|
* Should I check here if the timeout happened
|
|
* because of yet another reset, and not do a
|
|
* second reset?
|
|
*/
|
|
tw_cl_reset_ctlr(&sc->ctlr_handle);
|
|
/*
|
|
* Don't touch req after a reset. It (and any
|
|
* associated data) will already have been
|
|
* freed by the callback. Just return.
|
|
*/
|
|
user_buf->driver_pkt.os_status = error;
|
|
return(ETIMEDOUT);
|
|
}
|
|
/*
|
|
* Either the request got completed, or we were woken up by a
|
|
* signal. Calculate the new timeout, in case it was the latter.
|
|
*/
|
|
timeout = (end_time - tw_osl_get_local_time());
|
|
}
|
|
|
|
/* If there was a payload, copy it back. */
|
|
if ((!error) && (req->length))
|
|
if ((error = copyout(req->data, user_buf->pdata,
|
|
user_buf->driver_pkt.buffer_length)))
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x2019,
|
|
"Could not copyout fw_passthru data_buf",
|
|
error);
|
|
|
|
fw_passthru_err:
|
|
/*
|
|
* Print the failure message. For some reason, on certain OS versions,
|
|
* printing this error message during reset hangs the display (although
|
|
* the rest of the system is running fine. So, don't print it if the
|
|
* failure was due to a reset.
|
|
*/
|
|
if ((error) && (error != TW_CL_ERR_REQ_BUS_RESET))
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x201A,
|
|
"Firmware passthru failed!",
|
|
error);
|
|
|
|
user_buf->driver_pkt.os_status = error;
|
|
/* Free resources. */
|
|
if (req->data)
|
|
free(req->data, TW_OSLI_MALLOC_CLASS);
|
|
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
|
|
return(error);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osl_complete_passthru
|
|
* Description: Called to complete passthru requests.
|
|
*
|
|
* Input: req_handle -- ptr to request handle
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
tw_osl_complete_passthru(struct tw_cl_req_handle *req_handle)
|
|
{
|
|
struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
|
|
struct twa_softc *sc = req->ctlr;
|
|
|
|
tw_osli_dbg_dprintf(5, sc, "entered");
|
|
|
|
if (req->state != TW_OSLI_REQ_STATE_BUSY) {
|
|
tw_osli_printf(sc, "request = %p, status = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x201B,
|
|
"Unposted command completed!!",
|
|
req, req->state);
|
|
}
|
|
|
|
/*
|
|
* Remove request from the busy queue. Just mark it complete.
|
|
* There's no need to move it into the complete queue as we are
|
|
* going to be done with it right now.
|
|
*/
|
|
req->state = TW_OSLI_REQ_STATE_COMPLETE;
|
|
tw_osli_req_q_remove_item(req, TW_OSLI_BUSY_Q);
|
|
|
|
tw_osli_unmap_request(req);
|
|
|
|
/*
|
|
* Don't do a wake up if there was an error even before the request
|
|
* was sent down to the Common Layer, and we hadn't gotten an
|
|
* EINPROGRESS. The request originator will then be returned an
|
|
* error, and he can do the clean-up.
|
|
*/
|
|
if ((req->error_code) &&
|
|
(!(req->state & TW_OSLI_REQ_FLAGS_IN_PROGRESS)))
|
|
return;
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_PASSTHRU) {
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_SLEEPING) {
|
|
/* Wake up the sleeping command originator. */
|
|
tw_osli_dbg_dprintf(5, sc,
|
|
"Waking up originator of request %p", req);
|
|
req->flags &= ~TW_OSLI_REQ_FLAGS_SLEEPING;
|
|
wakeup_one(req);
|
|
} else {
|
|
/*
|
|
* If the request completed even before tsleep
|
|
* was called, simply return.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_MAPPED)
|
|
return;
|
|
|
|
tw_osli_printf(sc, "request = %p",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x201C,
|
|
"Passthru callback called, "
|
|
"and caller not sleeping",
|
|
req);
|
|
}
|
|
} else {
|
|
tw_osli_printf(sc, "request = %p",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x201D,
|
|
"Passthru callback called for non-passthru request",
|
|
req);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_get_request
|
|
* Description: Gets a request pkt from the free queue.
|
|
*
|
|
* Input: sc -- ptr to OSL internal ctlr context
|
|
* Output: None
|
|
* Return value: ptr to request pkt -- success
|
|
* NULL -- failure
|
|
*/
|
|
struct tw_osli_req_context *
|
|
tw_osli_get_request(struct twa_softc *sc)
|
|
{
|
|
struct tw_osli_req_context *req;
|
|
|
|
tw_osli_dbg_dprintf(4, sc, "entered");
|
|
|
|
/* Get a free request packet. */
|
|
req = tw_osli_req_q_remove_head(sc, TW_OSLI_FREE_Q);
|
|
|
|
/* Initialize some fields to their defaults. */
|
|
if (req) {
|
|
req->req_handle.osl_req_ctxt = NULL;
|
|
req->req_handle.cl_req_ctxt = NULL;
|
|
req->data = NULL;
|
|
req->length = 0;
|
|
req->real_data = NULL;
|
|
req->real_length = 0;
|
|
req->state = TW_OSLI_REQ_STATE_INIT;/* req being initialized */
|
|
req->flags = 0;
|
|
req->error_code = 0;
|
|
req->orig_req = NULL;
|
|
|
|
#ifdef TW_OSL_DMA_MEM_ALLOC_PER_REQUEST
|
|
|
|
/* Don't zero dma_mem & dma_mem_phys in req_pkt. */
|
|
req->req_pkt.cmd = 0;
|
|
req->req_pkt.flags = 0;
|
|
req->req_pkt.status = 0;
|
|
req->req_pkt.tw_osl_callback = NULL;
|
|
bzero(&(req->req_pkt.gen_req_pkt),
|
|
sizeof(req->req_pkt.gen_req_pkt));
|
|
|
|
#else /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
|
|
bzero(&(req->req_pkt), sizeof(struct tw_cl_req_packet));
|
|
|
|
#endif /* TW_OSL_DMA_MEM_ALLOC_PER_REQUEST */
|
|
}
|
|
return(req);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_map_load_data_callback
|
|
* Description: Callback of bus_dmamap_load for the buffer associated
|
|
* with data. Updates the cmd pkt (size/sgl_entries
|
|
* fields, as applicable) to reflect the number of sg
|
|
* elements.
|
|
*
|
|
* Input: arg -- ptr to OSL internal request context
|
|
* segs -- ptr to a list of segment descriptors
|
|
* nsegments--# of segments
|
|
* error -- 0 if no errors encountered before callback,
|
|
* non-zero if errors were encountered
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
static TW_VOID
|
|
twa_map_load_data_callback(TW_VOID *arg, bus_dma_segment_t *segs,
|
|
TW_INT32 nsegments, TW_INT32 error)
|
|
{
|
|
struct tw_osli_req_context *req =
|
|
(struct tw_osli_req_context *)arg;
|
|
struct twa_softc *sc = req->ctlr;
|
|
struct tw_cl_req_packet *req_pkt = &(req->req_pkt);
|
|
|
|
tw_osli_dbg_dprintf(10, sc, "entered");
|
|
|
|
/* Mark the request as currently being processed. */
|
|
req->state = TW_OSLI_REQ_STATE_BUSY;
|
|
/* Move the request into the busy queue. */
|
|
tw_osli_req_q_insert_tail(req, TW_OSLI_BUSY_Q);
|
|
|
|
req->flags |= TW_OSLI_REQ_FLAGS_MAPPED;
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_IN_PROGRESS)
|
|
tw_osli_allow_new_requests(sc, (TW_VOID *)(req->orig_req));
|
|
|
|
if (error == EFBIG) {
|
|
req->error_code = error;
|
|
goto out;
|
|
}
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_PASSTHRU) {
|
|
struct tw_cl_passthru_req_packet *pt_req;
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_IN)
|
|
bus_dmamap_sync(sc->ioctl_tag, sc->ioctl_map,
|
|
BUS_DMASYNC_PREREAD);
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_OUT) {
|
|
/*
|
|
* If we're using an alignment buffer, and we're
|
|
* writing data, copy the real data out.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED)
|
|
bcopy(req->real_data, req->data, req->real_length);
|
|
bus_dmamap_sync(sc->ioctl_tag, sc->ioctl_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
pt_req = &(req_pkt->gen_req_pkt.pt_req);
|
|
pt_req->sg_list = (TW_UINT8 *)segs;
|
|
pt_req->sgl_entries += (nsegments - 1);
|
|
error = tw_cl_fw_passthru(&(sc->ctlr_handle), req_pkt,
|
|
&(req->req_handle));
|
|
} else {
|
|
struct tw_cl_scsi_req_packet *scsi_req;
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_IN)
|
|
bus_dmamap_sync(sc->dma_tag, req->dma_map,
|
|
BUS_DMASYNC_PREREAD);
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_OUT) {
|
|
/*
|
|
* If we're using an alignment buffer, and we're
|
|
* writing data, copy the real data out.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED)
|
|
bcopy(req->real_data, req->data, req->real_length);
|
|
bus_dmamap_sync(sc->dma_tag, req->dma_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
scsi_req = &(req_pkt->gen_req_pkt.scsi_req);
|
|
scsi_req->sg_list = (TW_UINT8 *)segs;
|
|
scsi_req->sgl_entries += (nsegments - 1);
|
|
error = tw_cl_start_io(&(sc->ctlr_handle), req_pkt,
|
|
&(req->req_handle));
|
|
}
|
|
|
|
out:
|
|
if (error) {
|
|
req->error_code = error;
|
|
req_pkt->tw_osl_callback(&(req->req_handle));
|
|
/*
|
|
* If the caller had been returned EINPROGRESS, and he has
|
|
* registered a callback for handling completion, the callback
|
|
* will never get called because we were unable to submit the
|
|
* request. So, free up the request right here.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_IN_PROGRESS)
|
|
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_map_load_callback
|
|
* Description: Callback of bus_dmamap_load for the buffer associated
|
|
* with a cmd pkt.
|
|
*
|
|
* Input: arg -- ptr to variable to hold phys addr
|
|
* segs -- ptr to a list of segment descriptors
|
|
* nsegments--# of segments
|
|
* error -- 0 if no errors encountered before callback,
|
|
* non-zero if errors were encountered
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
static TW_VOID
|
|
twa_map_load_callback(TW_VOID *arg, bus_dma_segment_t *segs,
|
|
TW_INT32 nsegments, TW_INT32 error)
|
|
{
|
|
*((bus_addr_t *)arg) = segs[0].ds_addr;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_map_request
|
|
* Description: Maps a cmd pkt and data associated with it, into
|
|
* DMA'able memory.
|
|
*
|
|
* Input: req -- ptr to request pkt
|
|
* Output: None
|
|
* Return value: 0 -- success
|
|
* non-zero-- failure
|
|
*/
|
|
TW_INT32
|
|
tw_osli_map_request(struct tw_osli_req_context *req)
|
|
{
|
|
struct twa_softc *sc = req->ctlr;
|
|
TW_INT32 error = 0;
|
|
|
|
tw_osli_dbg_dprintf(10, sc, "entered");
|
|
|
|
/* If the command involves data, map that too. */
|
|
if (req->data != NULL) {
|
|
/*
|
|
* It's sufficient for the data pointer to be 4-byte aligned
|
|
* to work with 9000. However, if 4-byte aligned addresses
|
|
* are passed to bus_dmamap_load, we can get back sg elements
|
|
* that are not 512-byte multiples in size. So, we will let
|
|
* only those buffers that are 512-byte aligned to pass
|
|
* through, and bounce the rest, so as to make sure that we
|
|
* always get back sg elements that are 512-byte multiples
|
|
* in size.
|
|
*/
|
|
if (((vm_offset_t)req->data % sc->sg_size_factor) ||
|
|
(req->length % sc->sg_size_factor)) {
|
|
req->flags |= TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED;
|
|
/* Save original data pointer and length. */
|
|
req->real_data = req->data;
|
|
req->real_length = req->length;
|
|
req->length = (req->length +
|
|
(sc->sg_size_factor - 1)) &
|
|
~(sc->sg_size_factor - 1);
|
|
req->data = malloc(req->length, TW_OSLI_MALLOC_CLASS,
|
|
M_NOWAIT);
|
|
if (req->data == NULL) {
|
|
tw_osli_printf(sc, "error = %d",
|
|
TW_CL_SEVERITY_ERROR_STRING,
|
|
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
|
|
0x201E,
|
|
"Failed to allocate memory "
|
|
"for bounce buffer",
|
|
ENOMEM);
|
|
/* Restore original data pointer and length. */
|
|
req->data = req->real_data;
|
|
req->length = req->real_length;
|
|
return(ENOMEM);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Map the data buffer into bus space and build the SG list.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_PASSTHRU) {
|
|
/* Lock against multiple simultaneous ioctl calls. */
|
|
mtx_lock_spin(sc->io_lock);
|
|
error = bus_dmamap_load(sc->ioctl_tag, sc->ioctl_map,
|
|
req->data, req->length,
|
|
twa_map_load_data_callback, req,
|
|
BUS_DMA_WAITOK);
|
|
mtx_unlock_spin(sc->io_lock);
|
|
} else {
|
|
/*
|
|
* There's only one CAM I/O thread running at a time.
|
|
* So, there's no need to hold the io_lock.
|
|
*/
|
|
error = bus_dmamap_load(sc->dma_tag, req->dma_map,
|
|
req->data, req->length,
|
|
twa_map_load_data_callback, req,
|
|
BUS_DMA_WAITOK);
|
|
}
|
|
|
|
if (!error)
|
|
error = req->error_code;
|
|
else {
|
|
if (error == EINPROGRESS) {
|
|
/*
|
|
* Specifying sc->io_lock as the lockfuncarg
|
|
* in ...tag_create should protect the access
|
|
* of ...FLAGS_MAPPED from the callback.
|
|
*/
|
|
mtx_lock_spin(sc->io_lock);
|
|
if (!(req->flags & TW_OSLI_REQ_FLAGS_MAPPED)) {
|
|
req->flags |=
|
|
TW_OSLI_REQ_FLAGS_IN_PROGRESS;
|
|
tw_osli_disallow_new_requests(sc);
|
|
}
|
|
mtx_unlock_spin(sc->io_lock);
|
|
error = 0;
|
|
} else {
|
|
/* Free alignment buffer if it was used. */
|
|
if (req->flags &
|
|
TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED) {
|
|
free(req->data, TW_OSLI_MALLOC_CLASS);
|
|
/*
|
|
* Restore original data pointer
|
|
* and length.
|
|
*/
|
|
req->data = req->real_data;
|
|
req->length = req->real_length;
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
/* Mark the request as currently being processed. */
|
|
req->state = TW_OSLI_REQ_STATE_BUSY;
|
|
/* Move the request into the busy queue. */
|
|
tw_osli_req_q_insert_tail(req, TW_OSLI_BUSY_Q);
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_PASSTHRU)
|
|
error = tw_cl_fw_passthru(&sc->ctlr_handle,
|
|
&(req->req_pkt), &(req->req_handle));
|
|
else
|
|
error = tw_cl_start_io(&sc->ctlr_handle,
|
|
&(req->req_pkt), &(req->req_handle));
|
|
if (error) {
|
|
req->error_code = error;
|
|
req->req_pkt.tw_osl_callback(&(req->req_handle));
|
|
}
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_unmap_request
|
|
* Description: Undoes the mapping done by tw_osli_map_request.
|
|
*
|
|
* Input: req -- ptr to request pkt
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
tw_osli_unmap_request(struct tw_osli_req_context *req)
|
|
{
|
|
struct twa_softc *sc = req->ctlr;
|
|
|
|
tw_osli_dbg_dprintf(10, sc, "entered");
|
|
|
|
/* If the command involved data, unmap that too. */
|
|
if (req->data != NULL) {
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_PASSTHRU) {
|
|
/* Lock against multiple simultaneous ioctl calls. */
|
|
mtx_lock_spin(sc->io_lock);
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_IN) {
|
|
bus_dmamap_sync(sc->ioctl_tag,
|
|
sc->ioctl_map, BUS_DMASYNC_POSTREAD);
|
|
|
|
/*
|
|
* If we are using a bounce buffer, and we are
|
|
* reading data, copy the real data in.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED)
|
|
bcopy(req->data, req->real_data,
|
|
req->real_length);
|
|
}
|
|
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_OUT)
|
|
bus_dmamap_sync(sc->ioctl_tag, sc->ioctl_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
|
|
bus_dmamap_unload(sc->ioctl_tag, sc->ioctl_map);
|
|
|
|
mtx_unlock_spin(sc->io_lock);
|
|
} else {
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_IN) {
|
|
bus_dmamap_sync(sc->dma_tag,
|
|
req->dma_map, BUS_DMASYNC_POSTREAD);
|
|
|
|
/*
|
|
* If we are using a bounce buffer, and we are
|
|
* reading data, copy the real data in.
|
|
*/
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED)
|
|
bcopy(req->data, req->real_data,
|
|
req->real_length);
|
|
}
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_OUT)
|
|
bus_dmamap_sync(sc->dma_tag, req->dma_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
|
|
bus_dmamap_unload(sc->dma_tag, req->dma_map);
|
|
}
|
|
}
|
|
|
|
/* Free alignment buffer if it was used. */
|
|
if (req->flags & TW_OSLI_REQ_FLAGS_DATA_COPY_NEEDED) {
|
|
free(req->data, TW_OSLI_MALLOC_CLASS);
|
|
/* Restore original data pointer and length. */
|
|
req->data = req->real_data;
|
|
req->length = req->real_length;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
#ifdef TW_OSL_DEBUG
|
|
|
|
TW_VOID twa_report_stats(TW_VOID);
|
|
TW_VOID twa_reset_stats(TW_VOID);
|
|
TW_VOID tw_osli_print_ctlr_stats(struct twa_softc *sc);
|
|
TW_VOID twa_print_req_info(struct tw_osli_req_context *req);
|
|
|
|
|
|
/*
|
|
* Function name: twa_report_stats
|
|
* Description: For being called from ddb. Calls functions that print
|
|
* OSL and CL internal stats for the controller.
|
|
*
|
|
* Input: None
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
twa_report_stats(TW_VOID)
|
|
{
|
|
struct twa_softc *sc;
|
|
TW_INT32 i;
|
|
|
|
for (i = 0; (sc = devclass_get_softc(twa_devclass, i)) != NULL; i++) {
|
|
tw_osli_print_ctlr_stats(sc);
|
|
tw_cl_print_ctlr_stats(&sc->ctlr_handle);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: tw_osli_print_ctlr_stats
|
|
* Description: For being called from ddb. Prints OSL controller stats
|
|
*
|
|
* Input: sc -- ptr to OSL internal controller context
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
tw_osli_print_ctlr_stats(struct twa_softc *sc)
|
|
{
|
|
twa_printf(sc, "osl_ctlr_ctxt = %p\n", sc);
|
|
twa_printf(sc, "OSLq type current max\n");
|
|
twa_printf(sc, "free %04d %04d\n",
|
|
sc->q_stats[TW_OSLI_FREE_Q].cur_len,
|
|
sc->q_stats[TW_OSLI_FREE_Q].max_len);
|
|
twa_printf(sc, "busy %04d %04d\n",
|
|
sc->q_stats[TW_OSLI_BUSY_Q].cur_len,
|
|
sc->q_stats[TW_OSLI_BUSY_Q].max_len);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_print_req_info
|
|
* Description: For being called from ddb. Calls functions that print
|
|
* OSL and CL internal details for the request.
|
|
*
|
|
* Input: req -- ptr to OSL internal request context
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
twa_print_req_info(struct tw_osli_req_context *req)
|
|
{
|
|
struct twa_softc *sc = req->ctlr;
|
|
|
|
twa_printf(sc, "OSL details for request:\n");
|
|
twa_printf(sc, "osl_req_ctxt = %p, cl_req_ctxt = %p\n"
|
|
"data = %p, length = 0x%x, real_data = %p, real_length = 0x%x\n"
|
|
"state = 0x%x, flags = 0x%x, error = 0x%x, orig_req = %p\n"
|
|
"next_req = %p, prev_req = %p, dma_map = %p\n",
|
|
req->req_handle.osl_req_ctxt, req->req_handle.cl_req_ctxt,
|
|
req->data, req->length, req->real_data, req->real_length,
|
|
req->state, req->flags, req->error_code, req->orig_req,
|
|
req->link.next, req->link.prev, req->dma_map);
|
|
tw_cl_print_req_info(&(req->req_handle));
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Function name: twa_reset_stats
|
|
* Description: For being called from ddb.
|
|
* Resets some OSL controller stats.
|
|
*
|
|
* Input: None
|
|
* Output: None
|
|
* Return value: None
|
|
*/
|
|
TW_VOID
|
|
twa_reset_stats(TW_VOID)
|
|
{
|
|
struct twa_softc *sc;
|
|
TW_INT32 i;
|
|
|
|
for (i = 0; (sc = devclass_get_softc(twa_devclass, i)) != NULL; i++) {
|
|
sc->q_stats[TW_OSLI_FREE_Q].max_len = 0;
|
|
sc->q_stats[TW_OSLI_BUSY_Q].max_len = 0;
|
|
tw_cl_reset_stats(&sc->ctlr_handle);
|
|
}
|
|
}
|
|
|
|
#endif /* TW_OSL_DEBUG */
|