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141 lines
4.0 KiB
C
141 lines
4.0 KiB
C
/**************************************************************************
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Copyright (c) 2007, Chelsio Inc.
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All rights reserved.
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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 are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Neither the name of the Chelsio Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/fcntl.h>
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#include <sys/limits.h>
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#include <sys/lock.h>
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#include <sys/mbuf.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/sockopt.h>
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#include <sys/sockstate.h>
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#include <sys/sockbuf.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <sys/syslog.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_pcb.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <cxgb_osdep.h>
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#include <sys/mbufq.h>
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#include <netinet/tcp.h>
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#include <netinet/tcp_var.h>
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#include <netinet/tcp_fsm.h>
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#include <net/route.h>
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#include <t3cdev.h>
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#include <common/cxgb_firmware_exports.h>
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#include <common/cxgb_tcb.h>
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#include <common/cxgb_ctl_defs.h>
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#include <common/cxgb_t3_cpl.h>
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#include <cxgb_offload.h>
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#include <cxgb_include.h>
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#include <ulp/toecore/cxgb_toedev.h>
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#include <ulp/tom/cxgb_tom.h>
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#include <ulp/tom/cxgb_defs.h>
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#include <ulp/tom/cxgb_t3_ddp.h>
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/* Avoid clutter in the hw.* space, keep all toe tunables within hw.cxgb */
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SYSCTL_DECL(_hw_cxgb);
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SYSCTL_NODE(_hw_cxgb, OID_AUTO, toe, CTLFLAG_RD, 0, "TOE parameters");
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static struct tom_tunables default_tunable_vals = {
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.max_host_sndbuf = 32 * 1024,
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.tx_hold_thres = 0,
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.max_wrs = 15,
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.rx_credit_thres = 15 * 1024,
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.cong_alg = -1,
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.mss = 16384,
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.delack = 1,
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.max_conn = -1,
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.soft_backlog_limit = 0,
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.ddp = 1,
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.ddp_thres = 14 * 4096,
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.ddp_copy_limit = 13 * 4096,
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.ddp_push_wait = 1,
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.ddp_rcvcoalesce = 0,
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.zcopy_sosend_enabled = 0,
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.zcopy_sosend_partial_thres = 40960,
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.zcopy_sosend_partial_copy = 4096 * 3,
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.zcopy_sosend_thres = 128 * 1024,
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.zcopy_sosend_copy = 4096 * 2,
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.zcopy_sosend_ret_pending_dma = 1,
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.activated = 1,
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};
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static int activated = 1;
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TUNABLE_INT("hw.cxgb.toe.activated", &activated);
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SYSCTL_UINT(_hw_cxgb_toe, OID_AUTO, activated, CTLFLAG_RDTUN, &activated, 0,
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"enable TOE at init time");
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static int ddp = 1;
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TUNABLE_INT("hw.cxgb.toe.ddp", &ddp);
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SYSCTL_UINT(_hw_cxgb_toe, OID_AUTO, ddp, CTLFLAG_RDTUN, &ddp, 0, "enable DDP");
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void
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t3_init_tunables(struct tom_data *t)
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{
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t->conf = default_tunable_vals;
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/* Adjust tunables */
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t->conf.activated = activated;
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t->conf.ddp = ddp;
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/* Now apply device specific fixups. */
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t->conf.mss = T3C_DATA(t->cdev)->tx_max_chunk;
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t->conf.max_wrs = T3C_DATA(t->cdev)->max_wrs;
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}
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void
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t3_sysctl_register(struct adapter *sc, const struct tom_tunables *p)
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{
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struct sysctl_ctx_list *ctx;
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struct sysctl_oid_list *children;
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ctx = device_get_sysctl_ctx(sc->dev);
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children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
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}
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