From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/s390/net/qeth_tso.h | 58 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 drivers/s390/net/qeth_tso.h (limited to 'drivers/s390/net/qeth_tso.h') diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h new file mode 100644 index 00000000000..83504dee3f5 --- /dev/null +++ b/drivers/s390/net/qeth_tso.h @@ -0,0 +1,58 @@ +/* + * linux/drivers/s390/net/qeth_tso.h ($Revision: 1.4 $) + * + * Header file for qeth TCP Segmentation Offload support. + * + * Copyright 2004 IBM Corporation + * + * Author(s): Frank Pavlic + * + * $Revision: 1.4 $ $Date: 2005/03/24 09:04:18 $ + * + */ +#ifndef __QETH_TSO_H__ +#define __QETH_TSO_H__ + + +extern int +qeth_tso_send_packet(struct qeth_card *, struct sk_buff *, + struct qeth_qdio_out_q *, int , int); + +struct qeth_hdr_ext_tso { + __u16 hdr_tot_len; + __u8 imb_hdr_no; + __u8 reserved; + __u8 hdr_type; + __u8 hdr_version; + __u16 hdr_len; + __u32 payload_len; + __u16 mss; + __u16 dg_hdr_len; + __u8 padding[16]; +} __attribute__ ((packed)); + +struct qeth_hdr_tso { + struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ + struct qeth_hdr_ext_tso ext; +} __attribute__ ((packed)); + +/*some helper functions*/ + +static inline int +qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb) +{ + int elements_needed = 0; + + if (skb_shinfo(skb)->nr_frags > 0) + elements_needed = (skb_shinfo(skb)->nr_frags + 1); + if (elements_needed == 0 ) + elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + + skb->len) >> PAGE_SHIFT); + if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){ + PRINT_ERR("qeth_do_send_packet: invalid size of " + "IP packet. Discarded."); + return 0; + } + return elements_needed; +} +#endif /* __QETH_TSO_H__ */ -- cgit v1.2.3-18-g5258