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RCCE_shmalloc returns only a physical address => we have to map this region into the virtual address space

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This commit is contained in:
Stefan Lankes 2011-08-23 01:12:52 -07:00
parent af6ef23085
commit 2605ce5b34
4 changed files with 21 additions and 9 deletions
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2
arch/x86/scc/icc.c
View file

@ -84,7 +84,7 @@ static void intr_handler(struct state *s)
int tmp, z;
#ifdef CONFIG_LWIP
// mmnif_irqhandler();
mmnif_irqhandler();
#endif
z = Z_PID(RC_COREID[my_ue]);

14
drivers/net/mmnif.c
View file

@ -47,6 +47,7 @@ extern HANDLE hProc;
#include <metalsvm/semaphore.h>
#include <metalsvm/spinlock.h>
#include <metalsvm/page.h>
#include <asm/RCCE.h>
#include <asm/RCCE_lib.h>
@ -715,7 +716,11 @@ err_t mmnif_init(struct netif* netif)
/* Alloc and clear shared memory for rx_buff
*/
mpb_size = (sizeof(mm_rx_buffer_t) + MMNIF_RX_BUFFERLEN);
// align mpb size to the granularity of a page size
mpb_size = (mpb_size + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
mpb_start_address = RCCE_shmalloc(mpb_size*MMNIF_CORES);
// map physical address in the virtual address space
mpb_start_address = map_region(0, mpb_start_address, mpb_size >> PAGE_SHIFT, MAP_KERNEL_SPACE|MAP_NO_CACHE);
mmnif->rx_buff = mpb_start_address + (mpb_size) * (own_ip_address - router_ip_address);
if (!(mpb_start_address))
@ -1103,6 +1108,8 @@ int mmnif_open(void)
*/
int mmnif_close(void)
{
size_t phyaddr;
mmnif_t* mmnif;
if (!mmnif_dev)
@ -1119,7 +1126,12 @@ int mmnif_close(void)
kfree(mmnif->tx_buff[0],MMNIF_TX_QUEUELEN * MMNIF_TX_BUFFERLEN);
kfree(mmnif_dev,sizeof(mmnif_t));
RCCE_shfree(mpb_start_address);
// determine physical address
phyaddr = virt_to_phys(mpb_start_address);
// unmap shared memory regeion
unmap_region(mpb_start_address, mpb_size >> PAGE_SHIFT);
RCCE_shfree(phyaddr);
return NULL;
}

4
kernel/init.c
View file

@ -153,7 +153,7 @@ int network_init(void)
}
}
#else
//mmnif_open();
mmnif_open();
#endif
// start echo and ping server
@ -169,7 +169,7 @@ int network_shutdown(void)
{
#ifdef CONFIG_LWIP
#ifdef CONFIG_ROCKCREEK
//mmnif_close();
mmnif_close();
#elif defined(CONFIG_PCI)
dhcp_release(default_netif);
dhcp_stop(default_netif);

10
kernel/tests.c
View file

@ -131,7 +131,7 @@ static int svm_test(void *arg)
my_ue = RCCE_ue();
num_ues = RCCE_num_ues();
#if 0
#if 1
if (!my_ue) {
// allocate and initialize SVM region
A[0] = (int*) kmalloc(3*N*N*sizeof(int));
@ -399,14 +399,14 @@ int test_init(void)
// create_kernel_task(NULL,client_task,NULL);
#endif
//create_kernel_task(NULL, foo, "Hello from foo1");
//create_kernel_task(NULL, join_test, NULL);
create_kernel_task(NULL, foo, "Hello from foo1");
create_kernel_task(NULL, join_test, NULL);
//create_kernel_task(NULL, producer, NULL);
//create_kernel_task(NULL, consumer, NULL);
//create_kernel_task(NULL, mail_ping, NULL);
create_kernel_task(NULL, svm_test, NULL);
//create_kernel_task(NULL, svm_test, NULL);
//create_user_task(NULL, "/bin/hello", argv);
//create_user_task(NULL, "/bin/tests", argv);
create_user_task(NULL, "/bin/tests", argv);
//create_user_task(NULL, "/bin/jacobi", argv);
//create_user_task(NULL, "/bin/jacobi", argv);
//create_user_task(NULL, "/bin/server", server_argv);