301 lines
7.8 KiB
C
301 lines
7.8 KiB
C
/**************************************************************************
|
|
|
|
Copyright (c) 2007, Chelsio Inc.
|
|
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. Neither the name of the Chelsio Corporation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
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.
|
|
|
|
***************************************************************************/
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/module.h>
|
|
#include <sys/pciio.h>
|
|
#include <sys/conf.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/bus_dma.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/ioccom.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/rwlock.h>
|
|
#include <sys/linker.h>
|
|
#include <sys/firmware.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/sockio.h>
|
|
#include <sys/smp.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/taskqueue.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/eventhandler.h>
|
|
|
|
#if __FreeBSD_version >= 800044
|
|
#include <sys/vimage.h>
|
|
#else
|
|
#define V_ifnet ifnet
|
|
#endif
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_var.h>
|
|
|
|
#include <netinet/in.h>
|
|
|
|
#include <contrib/rdma/ib_verbs.h>
|
|
|
|
|
|
#ifdef CONFIG_DEFINED
|
|
#include <cxgb_include.h>
|
|
#include <ulp/iw_cxgb/iw_cxgb_wr.h>
|
|
#include <ulp/iw_cxgb/iw_cxgb_hal.h>
|
|
#include <ulp/iw_cxgb/iw_cxgb_provider.h>
|
|
#include <ulp/iw_cxgb/iw_cxgb_cm.h>
|
|
#include <ulp/iw_cxgb/iw_cxgb.h>
|
|
#else
|
|
#include <dev/cxgb/cxgb_include.h>
|
|
#include <dev/cxgb/ulp/iw_cxgb/iw_cxgb_wr.h>
|
|
#include <dev/cxgb/ulp/iw_cxgb/iw_cxgb_hal.h>
|
|
#include <dev/cxgb/ulp/iw_cxgb/iw_cxgb_provider.h>
|
|
#include <dev/cxgb/ulp/iw_cxgb/iw_cxgb_cm.h>
|
|
#include <dev/cxgb/ulp/iw_cxgb/iw_cxgb.h>
|
|
#endif
|
|
|
|
/*
|
|
* XXX :-/
|
|
*
|
|
*/
|
|
|
|
#define idr_init(x)
|
|
|
|
cxgb_cpl_handler_func t3c_handlers[NUM_CPL_CMDS];
|
|
|
|
static void open_rnic_dev(struct t3cdev *);
|
|
static void close_rnic_dev(struct t3cdev *);
|
|
|
|
static TAILQ_HEAD( ,iwch_dev) dev_list;
|
|
static struct mtx dev_mutex;
|
|
static eventhandler_tag event_tag;
|
|
|
|
static void
|
|
rnic_init(struct iwch_dev *rnicp)
|
|
{
|
|
CTR2(KTR_IW_CXGB, "%s iwch_dev %p", __FUNCTION__, rnicp);
|
|
idr_init(&rnicp->cqidr);
|
|
idr_init(&rnicp->qpidr);
|
|
idr_init(&rnicp->mmidr);
|
|
mtx_init(&rnicp->lock, "iwch rnic lock", NULL, MTX_DEF|MTX_DUPOK);
|
|
|
|
rnicp->attr.vendor_id = 0x168;
|
|
rnicp->attr.vendor_part_id = 7;
|
|
rnicp->attr.max_qps = T3_MAX_NUM_QP - 32;
|
|
rnicp->attr.max_wrs = (1UL << 24) - 1;
|
|
rnicp->attr.max_sge_per_wr = T3_MAX_SGE;
|
|
rnicp->attr.max_sge_per_rdma_write_wr = T3_MAX_SGE;
|
|
rnicp->attr.max_cqs = T3_MAX_NUM_CQ - 1;
|
|
rnicp->attr.max_cqes_per_cq = (1UL << 24) - 1;
|
|
rnicp->attr.max_mem_regs = cxio_num_stags(&rnicp->rdev);
|
|
rnicp->attr.max_phys_buf_entries = T3_MAX_PBL_SIZE;
|
|
rnicp->attr.max_pds = T3_MAX_NUM_PD - 1;
|
|
rnicp->attr.mem_pgsizes_bitmask = 0x7FFF; /* 4KB-128MB */
|
|
rnicp->attr.can_resize_wq = 0;
|
|
rnicp->attr.max_rdma_reads_per_qp = 8;
|
|
rnicp->attr.max_rdma_read_resources =
|
|
rnicp->attr.max_rdma_reads_per_qp * rnicp->attr.max_qps;
|
|
rnicp->attr.max_rdma_read_qp_depth = 8; /* IRD */
|
|
rnicp->attr.max_rdma_read_depth =
|
|
rnicp->attr.max_rdma_read_qp_depth * rnicp->attr.max_qps;
|
|
rnicp->attr.rq_overflow_handled = 0;
|
|
rnicp->attr.can_modify_ird = 0;
|
|
rnicp->attr.can_modify_ord = 0;
|
|
rnicp->attr.max_mem_windows = rnicp->attr.max_mem_regs - 1;
|
|
rnicp->attr.stag0_value = 1;
|
|
rnicp->attr.zbva_support = 1;
|
|
rnicp->attr.local_invalidate_fence = 1;
|
|
rnicp->attr.cq_overflow_detection = 1;
|
|
return;
|
|
}
|
|
|
|
static void
|
|
open_rnic_dev(struct t3cdev *tdev)
|
|
{
|
|
struct iwch_dev *rnicp;
|
|
static int vers_printed;
|
|
|
|
CTR2(KTR_IW_CXGB, "%s t3cdev %p", __FUNCTION__, tdev);
|
|
if (!vers_printed++)
|
|
printf("Chelsio T3 RDMA Driver - version %s\n",
|
|
DRV_VERSION);
|
|
rnicp = (struct iwch_dev *)ib_alloc_device(sizeof(*rnicp));
|
|
if (!rnicp) {
|
|
printf("Cannot allocate ib device\n");
|
|
return;
|
|
}
|
|
rnicp->rdev.ulp = rnicp;
|
|
rnicp->rdev.t3cdev_p = tdev;
|
|
|
|
mtx_lock(&dev_mutex);
|
|
|
|
if (cxio_rdev_open(&rnicp->rdev)) {
|
|
mtx_unlock(&dev_mutex);
|
|
printf("Unable to open CXIO rdev\n");
|
|
ib_dealloc_device(&rnicp->ibdev);
|
|
return;
|
|
}
|
|
|
|
rnic_init(rnicp);
|
|
|
|
TAILQ_INSERT_TAIL(&dev_list, rnicp, entry);
|
|
mtx_unlock(&dev_mutex);
|
|
|
|
if (iwch_register_device(rnicp)) {
|
|
printf("Unable to register device\n");
|
|
close_rnic_dev(tdev);
|
|
}
|
|
#ifdef notyet
|
|
printf("Initialized device %s\n",
|
|
pci_name(rnicp->rdev.rnic_info.pdev));
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
static void
|
|
close_rnic_dev(struct t3cdev *tdev)
|
|
{
|
|
struct iwch_dev *dev, *tmp;
|
|
CTR2(KTR_IW_CXGB, "%s t3cdev %p", __FUNCTION__, tdev);
|
|
mtx_lock(&dev_mutex);
|
|
|
|
TAILQ_FOREACH_SAFE(dev, &dev_list, entry, tmp) {
|
|
if (dev->rdev.t3cdev_p == tdev) {
|
|
#ifdef notyet
|
|
list_del(&dev->entry);
|
|
iwch_unregister_device(dev);
|
|
cxio_rdev_close(&dev->rdev);
|
|
idr_destroy(&dev->cqidr);
|
|
idr_destroy(&dev->qpidr);
|
|
idr_destroy(&dev->mmidr);
|
|
ib_dealloc_device(&dev->ibdev);
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
mtx_unlock(&dev_mutex);
|
|
}
|
|
|
|
static ifaddr_event_handler_t
|
|
ifaddr_event_handler(void *arg, struct ifnet *ifp)
|
|
{
|
|
printf("%s if name %s \n", __FUNCTION__, ifp->if_xname);
|
|
if (ifp->if_capabilities & IFCAP_TOE4) {
|
|
KASSERT(T3CDEV(ifp) != NULL, ("null t3cdev ptr!"));
|
|
if (cxio_hal_find_rdev_by_t3cdev(T3CDEV(ifp)) == NULL)
|
|
open_rnic_dev(T3CDEV(ifp));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
iwch_init_module(void)
|
|
{
|
|
int err;
|
|
struct ifnet *ifp;
|
|
|
|
printf("%s enter\n", __FUNCTION__);
|
|
TAILQ_INIT(&dev_list);
|
|
mtx_init(&dev_mutex, "iwch dev_list lock", NULL, MTX_DEF);
|
|
|
|
err = cxio_hal_init();
|
|
if (err)
|
|
return err;
|
|
err = iwch_cm_init();
|
|
if (err)
|
|
return err;
|
|
cxio_register_ev_cb(iwch_ev_dispatch);
|
|
|
|
/* Register for ifaddr events to dynamically add TOE devs */
|
|
event_tag = EVENTHANDLER_REGISTER(ifaddr_event, ifaddr_event_handler,
|
|
NULL, EVENTHANDLER_PRI_ANY);
|
|
|
|
/* Register existing TOE interfaces by walking the ifnet chain */
|
|
IFNET_RLOCK();
|
|
TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
|
|
(void)ifaddr_event_handler(NULL, ifp);
|
|
}
|
|
IFNET_RUNLOCK();
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
iwch_exit_module(void)
|
|
{
|
|
EVENTHANDLER_DEREGISTER(ifaddr_event, event_tag);
|
|
cxio_unregister_ev_cb(iwch_ev_dispatch);
|
|
iwch_cm_term();
|
|
cxio_hal_exit();
|
|
}
|
|
|
|
static int
|
|
iwch_load(module_t mod, int cmd, void *arg)
|
|
{
|
|
int err = 0;
|
|
|
|
switch (cmd) {
|
|
case MOD_LOAD:
|
|
printf("Loading iw_cxgb.\n");
|
|
|
|
iwch_init_module();
|
|
break;
|
|
case MOD_QUIESCE:
|
|
break;
|
|
case MOD_UNLOAD:
|
|
printf("Unloading iw_cxgb.\n");
|
|
iwch_exit_module();
|
|
break;
|
|
case MOD_SHUTDOWN:
|
|
break;
|
|
default:
|
|
err = EOPNOTSUPP;
|
|
break;
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
static moduledata_t mod_data = {
|
|
"iw_cxgb",
|
|
iwch_load,
|
|
0
|
|
};
|
|
|
|
MODULE_VERSION(iw_cxgb, 1);
|
|
DECLARE_MODULE(iw_cxgb, mod_data, SI_SUB_EXEC, SI_ORDER_ANY);
|
|
MODULE_DEPEND(iw_cxgb, rdma_core, 1, 1, 1);
|
|
MODULE_DEPEND(iw_cxgb, if_cxgb, 1, 1, 1);
|
|
MODULE_DEPEND(iw_cxgb, t3_tom, 1, 1, 1);
|
|
|