Ignore:
Timestamp:
Jun 26, 2019, 11:42:37 AM (15 months ago)
Author:
alain
Message:

This version is a major evolution: The physical memory allocators,
defined in the kmem.c, ppm.c, and kcm.c files have been modified
to support remote accesses. The RPCs that were previously user
to allocate physical memory in a remote cluster have been removed.
This has been done to cure a dead-lock in case of concurrent page-faults.

This version 2.2 has been tested on a (4 clusters / 2 cores per cluster)
TSAR architecture, for both the "sort" and the "fft" applications.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/hal/tsar_mips32/drivers/soclib_nic.c

    r570 r635  
    22 * soclib_nic.c - SOCLIB_NIC (Network Interface Controler) driver implementation.
    33 *
    4  * Author     Alain Greiner (2016)
     4 * Author     Alain Greiner (2016,2017,2018,2019)
    55 *
    66 * Copyright (c) UPMC Sorbonne Universites
     
    5555            "chbuf descriptor exceeds one page" );
    5656
    57     req.type   = KMEM_PAGE;
    58     req.size   = 0;
     57    req.type   = KMEM_PPM;
     58    req.order  = 0;
    5959    req.flags  = AF_KERNEL;
    6060
    61     nic_chbuf_t * chbuf = (nic_chbuf_t *)kmem_alloc( &req );
    62 
    63     assert( (chbuf != NULL) ,
    64              "cannot allocate chbuf descriptor" );
     61    nic_chbuf_t * chbuf = kmem_alloc( &req );
     62
     63    if( chbuf == NULL )
     64    {
     65        printk("\n[PANIC] in %s : cannot allocate chbuf descriptor\n",
     66        __FUNCTION__ );
     67    }
    6568
    6669    // initialise chbuf state
     
    7679    for( i = 0 ; i < CONFIG_NIC_CHBUF_DEPTH ; i++ )
    7780    {
    78         uint32_t * container = (uint32_t *)kmem_alloc( &req );   
     81        uint32_t * container = kmem_alloc( &req );   
    7982
    8083        assert( (container != NULL) ,
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