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7e05daae8f
- correct the ethernet payload remainder which must be post-offseted by -14 bytes instead of 0 bytes. This is not very clearly defined in the NCM specification. - add development feature about limiting the maximum datagram count in each NCM payload. - zero-pad alignment data - add TX-interval tuning sysctl Approved by: thompsa (mentor)
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/*-
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* Copyright (c) 2003-2005 Craig Boston
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* All rights reserved.
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*
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* 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 Bill Paul, THE VOICES IN HIS HEAD OR
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* THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _USB_IF_CDCEREG_H_
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#define _USB_IF_CDCEREG_H_
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#define CDCE_FRAMES_MAX 8 /* units */
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#define CDCE_IND_SIZE_MAX 32 /* bytes */
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#define CDCE_NCM_TX_MINLEN 512 /* bytes, must be power of two */
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#define CDCE_NCM_TX_MAXLEN (1UL << 14) /* bytes */
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#define CDCE_NCM_TX_FRAMES_MAX 8 /* units */
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#define CDCE_NCM_RX_MAXLEN (1UL << 14) /* bytes */
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#define CDCE_NCM_RX_FRAMES_MAX 1 /* units */
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#define CDCE_NCM_SUBFRAMES_MAX 32 /* units */
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#define CDCE_NCM_ALIGN(rem,off,mod) \
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((uint32_t)(((uint32_t)(rem)) - \
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((uint32_t)((-(uint32_t)(off)) & (-(uint32_t)(mod))))))
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#ifndef CDCE_HAVE_NCM
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#define CDCE_HAVE_NCM 1
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#endif
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enum {
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CDCE_BULK_RX,
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CDCE_BULK_TX,
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CDCE_INTR_RX,
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CDCE_INTR_TX,
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CDCE_N_TRANSFER,
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};
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struct cdce_ncm {
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struct usb_ncm16_hdr hdr;
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struct usb_ncm16_dpt dpt;
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struct usb_ncm16_dp dp[CDCE_NCM_SUBFRAMES_MAX];
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uint32_t rx_max;
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uint32_t tx_max;
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uint16_t tx_remainder;
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uint16_t tx_modulus;
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uint16_t tx_struct_align;
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uint16_t tx_seq;
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uint16_t tx_nframe;
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};
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struct cdce_softc {
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struct usb_ether sc_ue;
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struct mtx sc_mtx;
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#if CDCE_HAVE_NCM
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struct cdce_ncm sc_ncm;
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#endif
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struct usb_xfer *sc_xfer[CDCE_N_TRANSFER];
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struct mbuf *sc_rx_buf[CDCE_FRAMES_MAX];
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struct mbuf *sc_tx_buf[CDCE_FRAMES_MAX];
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int sc_flags;
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#define CDCE_FLAG_ZAURUS 0x0001
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#define CDCE_FLAG_NO_UNION 0x0002
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#define CDCE_FLAG_RX_DATA 0x0010
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uint8_t sc_eaddr_str_index;
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uint8_t sc_ifaces_index[2];
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};
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#define CDCE_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
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#define CDCE_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
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#define CDCE_LOCK_ASSERT(_sc, t) mtx_assert(&(_sc)->sc_mtx, t)
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#endif /* _USB_IF_CDCEREG_H_ */
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