[ac7d5ef0] | 1 | /* Shm_Send_packet |
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| 2 | * |
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| 3 | * This routine is the shared memory driver locked queue write |
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| 4 | * MPCI driver routine. This routine sends the specified packet |
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| 5 | * to the destination specified by "node". A "node" value of |
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| 6 | * zero designates that this packet is to be broadcasted. |
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| 7 | * |
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| 8 | * Input parameters: |
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| 9 | * node - destination of this packet (0 = broadcast) |
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| 10 | * packet - address of packet |
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| 11 | * |
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| 12 | * Output parameters: NONE |
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| 13 | * |
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[08311cc3] | 14 | * COPYRIGHT (c) 1989-1999. |
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[ac7d5ef0] | 15 | * On-Line Applications Research Corporation (OAR). |
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| 16 | * |
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[98e4ebf5] | 17 | * The license and distribution terms for this file may be |
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| 18 | * found in the file LICENSE in this distribution or at |
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[4e89a12] | 19 | * http://www.rtems.com/license/LICENSE. |
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[ac7d5ef0] | 20 | * |
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| 21 | * $Id$ |
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| 22 | */ |
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| 23 | |
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| 24 | #include <rtems.h> |
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[48bfd992] | 25 | #include "shm_driver.h" |
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[ac7d5ef0] | 26 | |
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| 27 | struct pkt_cpy { |
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[ee4f57d] | 28 | uint32_t packet[MAX_PACKET_SIZE/4]; |
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[ac7d5ef0] | 29 | }; |
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| 30 | |
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| 31 | rtems_mpci_entry Shm_Send_packet( |
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[ee4f57d] | 32 | uint32_t node, |
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[ac7d5ef0] | 33 | rtems_packet_prefix *packet |
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| 34 | ) |
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| 35 | { |
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| 36 | Shm_Envelope_control *ecb, *tmp_ecb; |
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[ee4f57d] | 37 | uint32_t nnum; |
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[ac7d5ef0] | 38 | |
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| 39 | ecb = Shm_Packet_prefix_to_envelope_control_pointer( packet ); |
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| 40 | if ( node ) { |
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| 41 | Shm_Build_preamble( ecb, node ); |
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| 42 | Shm_Build_postamble( ecb ); |
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| 43 | Shm_Append_to_receive_queue( node, ecb ); |
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| 44 | (*Shm_Configuration->cause_intr)( node ); |
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| 45 | } |
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| 46 | else { |
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[534c893] | 47 | for( nnum = SHM_FIRST_NODE ; nnum <= SHM_MAXIMUM_NODES ; nnum++ ) |
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| 48 | if ( _Configuration_MP_table->node != nnum ) { |
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[ac7d5ef0] | 49 | tmp_ecb = Shm_Allocate_envelope(); |
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| 50 | if ( !tmp_ecb ) |
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| 51 | rtems_fatal_error_occurred( SHM_NO_FREE_PKTS ); |
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| 52 | Shm_Build_preamble( tmp_ecb, nnum ); |
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| 53 | *((struct pkt_cpy *)tmp_ecb->packet) = *((struct pkt_cpy *)packet); |
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| 54 | Shm_Build_postamble( tmp_ecb ); |
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| 55 | Shm_Append_to_receive_queue( nnum, tmp_ecb ); |
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| 56 | (*Shm_Configuration->cause_intr)( nnum ); |
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| 57 | } |
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| 58 | Shm_Free_envelope( ecb ); |
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| 59 | } |
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| 60 | } |
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