diff options
Diffstat (limited to 'sys/dev/hea/eni_vcm.c')
| -rw-r--r-- | sys/dev/hea/eni_vcm.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/sys/dev/hea/eni_vcm.c b/sys/dev/hea/eni_vcm.c deleted file mode 100644 index 1dfd71d..0000000 --- a/sys/dev/hea/eni_vcm.c +++ /dev/null @@ -1,295 +0,0 @@ -/* - * - * =================================== - * HARP | Host ATM Research Platform - * =================================== - * - * - * This Host ATM Research Platform ("HARP") file (the "Software") is - * made available by Network Computing Services, Inc. ("NetworkCS") - * "AS IS". NetworkCS does not provide maintenance, improvements or - * support of any kind. - * - * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, - * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE - * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE. - * In no event shall NetworkCS be responsible for any damages, including - * but not limited to consequential damages, arising from or relating to - * any use of the Software or related support. - * - * Copyright 1994-1998 Network Computing Services, Inc. - * - * Copies of this Software may be made, however, the above copyright - * notice must be reproduced on all copies. - * - * - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * Efficient ENI Adapter Support - * ----------------------------- - * - * Virtual Channel Managment - * - */ - - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/socket.h> -#include <net/if.h> -#include <netatm/port.h> -#include <netatm/queue.h> -#include <netatm/atm.h> -#include <netatm/atm_sys.h> -#include <netatm/atm_cm.h> -#include <netatm/atm_if.h> -#include <netatm/atm_vc.h> - -#include <dev/hea/eni_stats.h> -#include <dev/hea/eni.h> -#include <dev/hea/eni_var.h> - -#ifndef lint -__RCSID("@(#) $FreeBSD$"); -#endif - - -/* - * VCC Stack Instantiation - * - * This function is called via the common driver code during a device VCC - * stack instantiation. The common code has already validated some of - * the request so we just need to check a few more ENI-specific details. - * - * Called at splnet. - * - * Arguments: - * cup pointer to device common unit - * cvp pointer to common VCC entry - * - * Returns: - * 0 instantiation successful - * err instantiation failed - reason indicated - * - */ -int -eni_instvcc(cup, cvp) - Cmn_unit *cup; - Cmn_vcc *cvp; -{ - Eni_unit *eup = (Eni_unit *)cup; - Eni_vcc *evp = (Eni_vcc *)cvp; - Atm_attributes *ap = &evp->ev_connvc->cvc_attr; - - /* - * Validate requested AAL - */ - switch (ap->aal.type) { - - case ATM_AAL0: - break; - - case ATM_AAL5: - if ((ap->aal.v.aal5.forward_max_SDU_size > ENI_IFF_MTU) || - (ap->aal.v.aal5.backward_max_SDU_size > ENI_IFF_MTU)) { - eup->eu_stats.eni_st_drv.drv_vc_maxpdu++; - return (EINVAL); - } - break; - - default: - return (EINVAL); - } - - return (0); -} - - -/* - * Open a VCC - * - * This function is called via the common driver code after receiving a - * stack *_INIT* command. The common code has already validated most of - * the request so we just need to check a few more ENI-specific details. - * - * Called at splimp. - * - * Arguments: - * cup pointer to device common unit - * cvp pointer to common VCC entry - * - * Returns: - * 0 open sucessful - * err open failed - * - */ -int -eni_openvcc ( cup, cvp ) - Cmn_unit *cup; - Cmn_vcc *cvp; -{ - Eni_unit *eup = (Eni_unit *)cup; - Eni_vcc *evp = (Eni_vcc *)cvp; - struct vccb *vcp = evp->ev_connvc->cvc_vcc; - int err = 0; - - VCI_Table *vct; - int size; - int mode; - int nsize; - - /* - * Validate the VPI and VCI values - */ - if ( (vcp->vc_vpi > eup->eu_pif.pif_maxvpi) || - (vcp->vc_vci > eup->eu_pif.pif_maxvci) ) { - eup->eu_stats.eni_st_drv.drv_vc_badrng++; - return ( EFAULT ); - } - - /* - * Check if this VCI is already active - */ - vct = &eup->eu_vcitbl[ vcp->vc_vci ]; - if ( vct->vci_control >> VCI_MODE_SHIFT != VCI_MODE_TRASH ) { - return ( EEXIST ); - } - - /* - * Allocate some permanent adapter memory for the reassembly - * buffer. Special case the signalling channel(s) buffer size. - * Otherwise, the buffer size will be based on whether this is - * a server or client card. - */ - if ( vcp->vc_vci == UNI_SIG_VCI ) /* HACK */ - size = RX_SIG_BSIZE; - else - size = (eup->eu_ramsize > MAX_CLIENT_RAM * ENI_BUF_PGSZ) ? - RX_SERVER_BSIZE * ENI_BUF_PGSZ : - RX_CLIENT_BSIZE * ENI_BUF_PGSZ; - - if ( ( evp->ev_rxbuf = eni_allocate_buffer ( eup, (u_long *)&size ) ) - == (caddr_t)NULL ) { - return ( ENOMEM ); - } - evp->ev_rxpos = 0; - - /* - * We only need to open incoming VCI's so outbound VCI's - * just get set to CVS_ACTIVE state. - */ - if ( ( vcp->vc_type & VCC_IN ) == 0 ) { - /* - * Set the state and return - nothing else needs to be done. - */ - evp->ev_state = CVS_ACTIVE; - return ( 0 ); - } - - /* - * Set the VCI Table entry to start receiving - */ - mode = ( evp->ev_connvc->cvc_attr.aal.type == ATM_AAL5 - ? VCI_MODE_AAL5 : VCI_MODE_AAL0 ); - size >>= ENI_LOC_PREDIV; /* Predivide by 256 WORDS */ - for ( nsize = -1; size; nsize++ ) - size >>= 1; - - vct->vci_control = mode << VCI_MODE_SHIFT | - PTI_MODE_TRASH << VCI_PTI_SHIFT | - ( (uintptr_t)(evp->ev_rxbuf) >> ENI_LOC_PREDIV ) << VCI_LOC_SHIFT | - nsize << VCI_SIZE_SHIFT; - vct->vci_descr = 0; /* Descr = Rdptr = 0 */ - vct->vci_write = 0; /* WritePtr = CellCount = 0 */ - - /* - * Indicate VC active - */ - evp->ev_state = CVS_ACTIVE; - - return ( err ); -} - -/* - * Close a VCC - * - * This function is called via the common driver code after receiving a - * stack *_TERM* command. The common code has already validated most of - * the request so we just need to check a few more ENI-specific details. - * - * Called at splimp. - * - * Arguments: - * cup pointer to device common unit - * cvp pointer to common VCC entry - * - * Returns: - * 0 close sucessful - * err close failed - * - */ -int -eni_closevcc ( cup, cvp ) - Cmn_unit *cup; - Cmn_vcc *cvp; -{ - Eni_unit *eup = (Eni_unit *)cup; - Eni_vcc *evp = (Eni_vcc *)cvp; - struct vccb *vcp = evp->ev_connvc->cvc_vcc; - int err = 0; - - VCI_Table *vct; - - /* - * Clear any references to this VCC in our transmit queue - */ - /* - * We'll simply allow any existing TX requests to be - * sent as that's easier then pulling them out of - * everywhere. Besides, they should be ignored at the - * receiver whenever the other end shuts down. - */ - - /* - * Free the adapter receive buffer - */ - (void) eni_free_buffer ( eup, (caddr_t)evp->ev_rxbuf ); - - /* - * If this is an outbound only VCI, then we can close - * immediately. - */ - if ( ( vcp->vc_type & VCC_IN ) == 0 ) { - /* - * The state will be set to TERM when we return - * to the *_TERM caller. - */ - return ( 0 ); - } - - /* - * Find VCI entry in VCI Table - */ - vct = &eup->eu_vcitbl[ vcp->vc_vci ]; - - /* - * Reset the VCI state - */ - vct->vci_control = ( vct->vci_control & VCI_MODE_MASK ) - /* | VCI_MODE_TRASH */; - DELAY ( MIDWAY_DELAY ); /* Give the adapter time to */ - /* make the transition */ - - /* - * Reset everything - */ - bzero ( (void *)(uintptr_t)vct, sizeof(VCI_Table) ); - - return ( err ); -} - |
