[lwip-devel] [bug #26133] Processor specific porting needs flexibility in terms of placement of various memory pools.

[Zhenwei Chu]

URL:
  <http://savannah.nongnu.org/bugs/?26133>

                 Summary: Processor specific porting needs flexibility in
terms of placement of various memory pools. 
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: blackfin
            Submitted on: Thu 09 Apr 2009 02:03:28 PM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: Change Request
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: 1.3.0

    _______________________________________________________

Details:

Protecting them with simple macro will give them a chance to declare/define
at the upper level so lwip code changes as below

Files changed:
core\memp.c

Changes:
#if !defined(LWIP_RAM)
/* Adam original */
static u8_t ram[MEM_SIZE + sizeof(struct mem) + MEM_ALIGNMENT];
#else
/* Christiaan alignment fix */
static u8_t* ram;
static struct mem ram_heap[1 + ( (MEM_SIZE + sizeof(struct mem) - 1) /
sizeof(struct mem))];  
#endif

memp.c: line 136:
From:
/** This is the actual memory used by the pools. */
static u8_t memp_memory[MEM_ALIGNMENT - 1 
#define LWIP_MEMPOOL(name,num,size,desc) + ( (num) * (MEMP_SIZE +
MEMP_ALIGN_SIZE(size) ) )
#include "lwip/memp_std.h"
                 ];


To:
/** This is the actual memory used by the pools. */
static u8_t* memp_memory;
u8_t** ADI_TOOLS_memp_ptr = &memp_memory;
u32_t  ADI_TOOLS_memp_len = MEM_ALIGNMENT - 1 
#define LWIP_MEMPOOL(name,num,size,desc) + ( (num) * (MEMP_SIZE +
MEMP_ALIGN_SIZE(size) ) )
#include "lwip/memp_std.h"
                  ;

pbuf.c: line76

From:
/*static u8_t pbuf_pool_memory[MEM_ALIGNMENT - 1 + PBUF_POOL_SIZE *
MEM_ALIGN_SIZE(PBUF_POOL_BUFSIZE + sizeof(struct pbuf))]; */


To:
static u8_t* pbuf_pool_memory;
u8_t** ADI_TOOLS_pbuf_pool_ptr = &pbuf_pool_memory;
/*u32_t  ADI_TOOLS_pbuf_pool_len = 
  (PBUF_POOL_SIZE * MEM_ALIGN_SIZE(PBUF_POOL_BUFSIZE + sizeof(struct
pbuf)));*/





    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?26133>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.nongnu.org/