+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
- * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-/*
- * These are the routines used by layered drivers, currently just the
- * layered ethernet driver and verbs layer.
- */
-
-#include <linux/io.h>
-#include <asm/byteorder.h>
-
-#include "ipath_kernel.h"
-#include "ipath_layer.h"
-#include "ipath_verbs.h"
-#include "ipath_common.h"
-
-/* Acquire before ipath_devs_lock. */
-static DEFINE_MUTEX(ipath_layer_mutex);
-
-u16 ipath_layer_rcv_opcode;
-
-static int (*layer_intr)(void *, u32);
-static int (*layer_rcv)(void *, void *, struct sk_buff *);
-static int (*layer_rcv_lid)(void *, void *);
-
-static void *(*layer_add_one)(int, struct ipath_devdata *);
-static void (*layer_remove_one)(void *);
-
-int __ipath_layer_intr(struct ipath_devdata *dd, u32 arg)
-{
- int ret = -ENODEV;
-
- if (dd->ipath_layer.l_arg && layer_intr)
- ret = layer_intr(dd->ipath_layer.l_arg, arg);
-
- return ret;
-}
-
-int ipath_layer_intr(struct ipath_devdata *dd, u32 arg)
-{
- int ret;
-
- mutex_lock(&ipath_layer_mutex);
-
- ret = __ipath_layer_intr(dd, arg);
-
- mutex_unlock(&ipath_layer_mutex);
-
- return ret;
-}
-
-int __ipath_layer_rcv(struct ipath_devdata *dd, void *hdr,
- struct sk_buff *skb)
-{
- int ret = -ENODEV;
-
- if (dd->ipath_layer.l_arg && layer_rcv)
- ret = layer_rcv(dd->ipath_layer.l_arg, hdr, skb);
-
- return ret;
-}
-
-int __ipath_layer_rcv_lid(struct ipath_devdata *dd, void *hdr)
-{
- int ret = -ENODEV;
-
- if (dd->ipath_layer.l_arg && layer_rcv_lid)
- ret = layer_rcv_lid(dd->ipath_layer.l_arg, hdr);
-
- return ret;
-}
-
-void ipath_layer_lid_changed(struct ipath_devdata *dd)
-{
- mutex_lock(&ipath_layer_mutex);
-
- if (dd->ipath_layer.l_arg && layer_intr)
- layer_intr(dd->ipath_layer.l_arg, IPATH_LAYER_INT_LID);
-
- mutex_unlock(&ipath_layer_mutex);
-}
-
-void ipath_layer_add(struct ipath_devdata *dd)
-{
- mutex_lock(&ipath_layer_mutex);
-
- if (layer_add_one)
- dd->ipath_layer.l_arg =
- layer_add_one(dd->ipath_unit, dd);
-
- mutex_unlock(&ipath_layer_mutex);
-}
-
-void ipath_layer_remove(struct ipath_devdata *dd)
-{
- mutex_lock(&ipath_layer_mutex);
-
- if (dd->ipath_layer.l_arg && layer_remove_one) {
- layer_remove_one(dd->ipath_layer.l_arg);
- dd->ipath_layer.l_arg = NULL;
- }
-
- mutex_unlock(&ipath_layer_mutex);
-}
-
-int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *),
- void (*l_remove)(void *),
- int (*l_intr)(void *, u32),
- int (*l_rcv)(void *, void *, struct sk_buff *),
- u16 l_rcv_opcode,
- int (*l_rcv_lid)(void *, void *))
-{
- struct ipath_devdata *dd, *tmp;
- unsigned long flags;
-
- mutex_lock(&ipath_layer_mutex);
-
- layer_add_one = l_add;
- layer_remove_one = l_remove;
- layer_intr = l_intr;
- layer_rcv = l_rcv;
- layer_rcv_lid = l_rcv_lid;
- ipath_layer_rcv_opcode = l_rcv_opcode;
-
- spin_lock_irqsave(&ipath_devs_lock, flags);
-
- list_for_each_entry_safe(dd, tmp, &ipath_dev_list, ipath_list) {
- if (!(dd->ipath_flags & IPATH_INITTED))
- continue;
-
- if (dd->ipath_layer.l_arg)
- continue;
-
- spin_unlock_irqrestore(&ipath_devs_lock, flags);
- dd->ipath_layer.l_arg = l_add(dd->ipath_unit, dd);
- spin_lock_irqsave(&ipath_devs_lock, flags);
- }
-
- spin_unlock_irqrestore(&ipath_devs_lock, flags);
- mutex_unlock(&ipath_layer_mutex);
-
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_register);
-
-void ipath_layer_unregister(void)
-{
- struct ipath_devdata *dd, *tmp;
- unsigned long flags;
-
- mutex_lock(&ipath_layer_mutex);
- spin_lock_irqsave(&ipath_devs_lock, flags);
-
- list_for_each_entry_safe(dd, tmp, &ipath_dev_list, ipath_list) {
- if (dd->ipath_layer.l_arg && layer_remove_one) {
- spin_unlock_irqrestore(&ipath_devs_lock, flags);
- layer_remove_one(dd->ipath_layer.l_arg);
- spin_lock_irqsave(&ipath_devs_lock, flags);
- dd->ipath_layer.l_arg = NULL;
- }
- }
-
- spin_unlock_irqrestore(&ipath_devs_lock, flags);
-
- layer_add_one = NULL;
- layer_remove_one = NULL;
- layer_intr = NULL;
- layer_rcv = NULL;
- layer_rcv_lid = NULL;
-
- mutex_unlock(&ipath_layer_mutex);
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_unregister);
-
-int ipath_layer_open(struct ipath_devdata *dd, u32 * pktmax)
-{
- int ret;
- u32 intval = 0;
-
- mutex_lock(&ipath_layer_mutex);
-
- if (!dd->ipath_layer.l_arg) {
- ret = -EINVAL;
- goto bail;
- }
-
- ret = ipath_setrcvhdrsize(dd, IPATH_HEADER_QUEUE_WORDS);
-
- if (ret < 0)
- goto bail;
-
- *pktmax = dd->ipath_ibmaxlen;
-
- if (*dd->ipath_statusp & IPATH_STATUS_IB_READY)
- intval |= IPATH_LAYER_INT_IF_UP;
- if (dd->ipath_lid)
- intval |= IPATH_LAYER_INT_LID;
- if (dd->ipath_mlid)
- intval |= IPATH_LAYER_INT_BCAST;
- /*
- * do this on open, in case low level is already up and
- * just layered driver was reloaded, etc.
- */
- if (intval)
- layer_intr(dd->ipath_layer.l_arg, intval);
-
- ret = 0;
-bail:
- mutex_unlock(&ipath_layer_mutex);
-
- return ret;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_open);
-
-u16 ipath_layer_get_lid(struct ipath_devdata *dd)
-{
- return dd->ipath_lid;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_get_lid);
-
-/**
- * ipath_layer_get_mac - get the MAC address
- * @dd: the infinipath device
- * @mac: the MAC is put here
- *
- * This is the EUID-64 OUI octets (top 3), then
- * skip the next 2 (which should both be zero or 0xff).
- * The returned MAC is in network order
- * mac points to at least 6 bytes of buffer
- * We assume that by the time the LID is set, that the GUID is as valid
- * as it's ever going to be, rather than adding yet another status bit.
- */
-
-int ipath_layer_get_mac(struct ipath_devdata *dd, u8 * mac)
-{
- u8 *guid;
-
- guid = (u8 *) &dd->ipath_guid;
-
- mac[0] = guid[0];
- mac[1] = guid[1];
- mac[2] = guid[2];
- mac[3] = guid[5];
- mac[4] = guid[6];
- mac[5] = guid[7];
- if ((guid[3] || guid[4]) && !(guid[3] == 0xff && guid[4] == 0xff))
- ipath_dbg("Warning, guid bytes 3 and 4 not 0 or 0xffff: "
- "%x %x\n", guid[3], guid[4]);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_get_mac);
-
-u16 ipath_layer_get_bcast(struct ipath_devdata *dd)
-{
- return dd->ipath_mlid;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_get_bcast);
-
-int ipath_layer_send_hdr(struct ipath_devdata *dd, struct ether_header *hdr)
-{
- int ret = 0;
- u32 __iomem *piobuf;
- u32 plen, *uhdr;
- size_t count;
- __be16 vlsllnh;
-
- if (!(dd->ipath_flags & IPATH_RCVHDRSZ_SET)) {
- ipath_dbg("send while not open\n");
- ret = -EINVAL;
- } else
- if ((dd->ipath_flags & (IPATH_LINKUNK | IPATH_LINKDOWN)) ||
- dd->ipath_lid == 0) {
- /*
- * lid check is for when sma hasn't yet configured
- */
- ret = -ENETDOWN;
- ipath_cdbg(VERBOSE, "send while not ready, "
- "mylid=%u, flags=0x%x\n",
- dd->ipath_lid, dd->ipath_flags);
- }
-
- vlsllnh = *((__be16 *) hdr);
- if (vlsllnh != htons(IPATH_LRH_BTH)) {
- ipath_dbg("Warning: lrh[0] wrong (%x, not %x); "
- "not sending\n", be16_to_cpu(vlsllnh),
- IPATH_LRH_BTH);
- ret = -EINVAL;
- }
- if (ret)
- goto done;
-
- /* Get a PIO buffer to use. */
- piobuf = ipath_getpiobuf(dd, NULL);
- if (piobuf == NULL) {
- ret = -EBUSY;
- goto done;
- }
-
- plen = (sizeof(*hdr) >> 2); /* actual length */
- ipath_cdbg(EPKT, "0x%x+1w pio %p\n", plen, piobuf);
-
- writeq(plen+1, piobuf); /* len (+1 for pad) to pbc, no flags */
- ipath_flush_wc();
- piobuf += 2;
- uhdr = (u32 *)hdr;
- count = plen-1; /* amount we can copy before trigger word */
- __iowrite32_copy(piobuf, uhdr, count);
- ipath_flush_wc();
- __raw_writel(uhdr[count], piobuf + count);
- ipath_flush_wc(); /* ensure it's sent, now */
-
- ipath_stats.sps_ether_spkts++; /* ether packet sent */
-
-done:
- return ret;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_send_hdr);
-
-int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd)
-{
- set_bit(IPATH_S_PIOINTBUFAVAIL, &dd->ipath_sendctrl);
-
- ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl,
- dd->ipath_sendctrl);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ipath_layer_set_piointbufavail_int);
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
- * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef _IPATH_LAYER_H
-#define _IPATH_LAYER_H
-
-/*
- * This header file is for symbols shared between the infinipath driver
- * and drivers layered upon it (such as ipath).
- */
-
-struct sk_buff;
-struct ipath_devdata;
-struct ether_header;
-
-int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *),
- void (*l_remove)(void *),
- int (*l_intr)(void *, u32),
- int (*l_rcv)(void *, void *,
- struct sk_buff *),
- u16 rcv_opcode,
- int (*l_rcv_lid)(void *, void *));
-void ipath_layer_unregister(void);
-int ipath_layer_open(struct ipath_devdata *, u32 * pktmax);
-u16 ipath_layer_get_lid(struct ipath_devdata *dd);
-int ipath_layer_get_mac(struct ipath_devdata *dd, u8 *);
-u16 ipath_layer_get_bcast(struct ipath_devdata *dd);
-int ipath_layer_send_hdr(struct ipath_devdata *dd,
- struct ether_header *hdr);
-int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd);
-
-/* ipath_ether interrupt values */
-#define IPATH_LAYER_INT_IF_UP 0x2
-#define IPATH_LAYER_INT_IF_DOWN 0x4
-#define IPATH_LAYER_INT_LID 0x8
-#define IPATH_LAYER_INT_SEND_CONTINUE 0x10
-#define IPATH_LAYER_INT_BCAST 0x40
-
-extern unsigned ipath_debug; /* debugging bit mask */
-
-#endif /* _IPATH_LAYER_H */
projects / profile / ivi / kernel-adaptation-intel-automotive.git / commitdiff