integrate the timer values of the icc ping example in the payload of the mailbox header
=> remove some static variables
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parent
5cd3d7557a
commit
e5c0e2b037
2 changed files with 9 additions and 9 deletions
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@ -212,13 +212,12 @@ int icc_halt(void)
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return 0;
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}
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#define MAIL_MSG_SIZE 20
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uint64_t timer;
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int icc_mail_ping( void )
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{
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uint32_t flags;
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int remote_rank = (my_ue+1)%2;
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uint8_t payload[iRCCE_MAIL_HEADER_PAYLOAD];
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uint64_t* timer = (uint64_t*) payload;
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if (my_ue)
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return -1;
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@ -229,10 +228,10 @@ int icc_mail_ping( void )
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flags = irq_nested_disable();
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// start timer
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timer = rdtsc();
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*timer = rdtsc();
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/* send ping request */
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iRCCE_mail_send(0, ICC_TAG_PINGREQUEST, 0, NULL, remote_rank);
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iRCCE_mail_send(sizeof(uint64_t), ICC_TAG_PINGREQUEST, 0, payload, remote_rank);
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NOP8;
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icc_send_irq(remote_rank);
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@ -250,6 +249,7 @@ void icc_mail_check(void)
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{
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iRCCE_MAIL_HEADER* header = NULL;
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int res;
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uint64_t timer;
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//char* recv_buffer;
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// empty mailbox and interpret headers
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@ -257,12 +257,12 @@ void icc_mail_check(void)
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switch(header->tag)
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{
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case ICC_TAG_PINGREQUEST:
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iRCCE_mail_send( 0, ICC_TAG_PINGRESPONSE, 0, NULL, header->source );
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iRCCE_mail_send( header->size, ICC_TAG_PINGRESPONSE, 0, header->payload, header->source );
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NOP8;
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icc_send_irq( header->source );
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break;
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case ICC_TAG_PINGRESPONSE:
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timer = rdtsc() - timer;
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timer = rdtsc() - *((uint64_t*) header->payload);
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kprintf( "Response received in %d ticks!\n", timer );
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break;
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default:
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@ -91,8 +91,8 @@ int STDCALL mail_ping(void* arg) {
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int i;
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for(i=0; i<20; i++) {
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icc_mail_ping();
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//icc_halt();
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if (BUILTIN_EXPECT(icc_mail_ping(), 0))
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return -1;
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udelay(500000);
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}
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