Changes between Version 25 and Version 26 of kernel_syscalls

Timestamp:

Dec 30, 2014, 5:22:07 PM (9 years ago)

Author:

alain

Comment:

--

kernel_syscalls

@@ -59 +59 @@
 
 === 2) int '''_sys_nic_start'''( unsigned int is_rx ) ===
-This function initializes the kernel chbuf allocated to the calling task. It allocates the distributed 4 Kbytes containers (2 containers per cluster) from the distributed kernel heap, and initializes the kernel chbuf  describing the containers status. This chbuf descriptor is allocated in the seg_kernel_data segment in cluster [0,0].
-It starts the NIC channel allocated to the calling task, and starts the CMA transfer between the NIC chbuf and the distributed kernel chbuf. The CMA component is configured in OUT_OF_ORDER transfer mode (non blocking when a DST buffer is full.
+This function initializes the kernel chbuf allocated to the calling task. It allocates the distributed 4 Kbytes containers (one container per cluster) from the distributed kernel heap, and initializes the kernel chbuf  describing the containers status. This chbuf descriptor is allocated in the seg_kernel_data segment in cluster [0,0].
+It starts the NIC channel allocated to the calling task, and starts the CMA transfer between the NIC chbuf and the distributed kernel chbuf. The CMA component is configured in OUT_OF_ORDER transfer mode (non blocking when a SRC or DST container is not available).
  * '''is_rx''' : boolean (RX transfer if non zero)
 Returns 0 if success. Returns -1 if no NIC channel or no CMA channel allocated to the calling task.