diff options
Diffstat (limited to 'kernel/drivers/staging/octeon/ethernet-tx.c')
| -rw-r--r-- | kernel/drivers/staging/octeon/ethernet-tx.c | 65 |
1 files changed, 26 insertions, 39 deletions
diff --git a/kernel/drivers/staging/octeon/ethernet-tx.c b/kernel/drivers/staging/octeon/ethernet-tx.c index 5b9ac1f6d..c053c4a47 100644 --- a/kernel/drivers/staging/octeon/ethernet-tx.c +++ b/kernel/drivers/staging/octeon/ethernet-tx.c @@ -1,29 +1,13 @@ -/********************************************************************* - * Author: Cavium Networks - * - * Contact: support@caviumnetworks.com - * This file is part of the OCTEON SDK +/* + * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2010 Cavium Networks * * This file is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 2, as * published by the Free Software Foundation. - * - * This file is distributed in the hope that it will be useful, but - * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or - * NONINFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this file; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * or visit http://www.gnu.org/licenses/. - * - * This file may also be available under a different license from Cavium. - * Contact Cavium Networks for more information -*********************************************************************/ + */ + #include <linux/module.h> #include <linux/kernel.h> #include <linux/netdevice.h> @@ -159,8 +143,8 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) { cvmx_pko_command_word0_t pko_command; union cvmx_buf_ptr hw_buffer; - uint64_t old_scratch; - uint64_t old_scratch2; + u64 old_scratch; + u64 old_scratch2; int qos; int i; enum {QUEUE_CORE, QUEUE_HW, QUEUE_DROP} queue_type; @@ -411,11 +395,13 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) dont_put_skbuff_in_hw: /* Check if we can use the hardware checksumming */ - if (USE_HW_TCPUDP_CHECKSUM && (skb->protocol == htons(ETH_P_IP)) && - (ip_hdr(skb)->version == 4) && (ip_hdr(skb)->ihl == 5) && - ((ip_hdr(skb)->frag_off == 0) || (ip_hdr(skb)->frag_off == htons(1 << 14))) - && ((ip_hdr(skb)->protocol == IPPROTO_TCP) - || (ip_hdr(skb)->protocol == IPPROTO_UDP))) { + if ((skb->protocol == htons(ETH_P_IP)) && + (ip_hdr(skb)->version == 4) && + (ip_hdr(skb)->ihl == 5) && + ((ip_hdr(skb)->frag_off == 0) || + (ip_hdr(skb)->frag_off == htons(1 << 14))) && + ((ip_hdr(skb)->protocol == IPPROTO_TCP) || + (ip_hdr(skb)->protocol == IPPROTO_UDP))) { /* Use hardware checksum calc */ pko_command.s.ipoffp1 = sizeof(struct ethhdr) + 1; } @@ -563,7 +549,7 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) /* Get a work queue entry */ cvmx_wqe_t *work = cvmx_fpa_alloc(CVMX_FPA_WQE_POOL); - if (unlikely(work == NULL)) { + if (unlikely(!work)) { printk_ratelimited("%s: Failed to allocate a work queue entry\n", dev->name); priv->stats.tx_dropped++; @@ -576,7 +562,7 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) if (unlikely(packet_buffer == NULL)) { printk_ratelimited("%s: Failed to allocate a packet buffer\n", dev->name); - cvmx_fpa_free(work, CVMX_FPA_WQE_POOL, DONT_WRITEBACK(1)); + cvmx_fpa_free(work, CVMX_FPA_WQE_POOL, 1); priv->stats.tx_dropped++; dev_kfree_skb_any(skb); return 0; @@ -590,7 +576,7 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) * calculation may add a little extra, but that doesn't * hurt. */ - copy_location = packet_buffer + sizeof(uint64_t); + copy_location = packet_buffer + sizeof(u64); copy_location += ((CVMX_HELPER_FIRST_MBUFF_SKIP + 7) & 0xfff8) + 6; /* @@ -605,13 +591,14 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) * Fill in some of the work queue fields. We may need to add * more if the software at the other end needs them. */ - work->hw_chksum = skb->csum; - work->len = skb->len; - work->ipprt = priv->port; - work->qos = priv->port & 0x7; - work->grp = pow_send_group; - work->tag_type = CVMX_HELPER_INPUT_TAG_TYPE; - work->tag = pow_send_group; /* FIXME */ + if (!OCTEON_IS_MODEL(OCTEON_CN68XX)) + work->word0.pip.cn38xx.hw_chksum = skb->csum; + work->word1.len = skb->len; + cvmx_wqe_set_port(work, priv->port); + cvmx_wqe_set_qos(work, priv->port & 0x7); + cvmx_wqe_set_grp(work, pow_send_group); + work->word1.tag_type = CVMX_HELPER_INPUT_TAG_TYPE; + work->word1.tag = pow_send_group; /* FIXME */ /* Default to zero. Sets of zero later are commented out */ work->word2.u64 = 0; work->word2.s.bufs = 1; @@ -691,8 +678,8 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) } /* Submit the packet to the POW */ - cvmx_pow_work_submit(work, work->tag, work->tag_type, work->qos, - work->grp); + cvmx_pow_work_submit(work, work->word1.tag, work->word1.tag_type, + cvmx_wqe_get_qos(work), cvmx_wqe_get_grp(work)); priv->stats.tx_packets++; priv->stats.tx_bytes += skb->len; dev_consume_skb_any(skb); |