Hello, I'm attempting to upgrade one of the basic examples that Atmel provides (http example with lwip), that comes with lwip 1.4.1, and upgrade it to lwip 2.0.0. I'm fairly new to using these tools, so I figured I could essentially remove the lwip 1.4.1 folder+files and replace it with lwip 2.0.0 folder/files. When compiling, some files needed to change slightly, such as knowing where the new header files are and such, but nothing major (I don't think). The one thing I left the same was the lwip1.4.1-port folder, which includes the "lwip MAC driver for lwip".
This was all that was done in terms of changing files. The project compiles without any issues, but when programmed to the board (I'm running an Atmel Sam4e Xplained Pro) there are a couple things. Other functions such as the console work just fine without a problem, but when I try to ping the board, it fails to. When the board is first turned on, it can ping the board once, and then it stops. The board is still running it's ethernet_task() function which is searching for signals. I turned on debugging for a few things and I get an error message. The error message that I get is "gmac_rx_populate_queue: pbuf allocation failure" and then later "etharp_input: ARP request was not for us." To me, it seems like the initial setup of lwip works just fine, since it is able to ping the board at least once when it boots up, but rather it might be an issue with the lwip1.4.1-port folder that I left alone when doing the upgrade. Could it be possible that this driver is causing the issue? The error messages also come from this file as well which leads me to believe that the error relies in there. Looking up the pbuf allocation failure, I found another post that suggested to increase the size of my pbuf_pool_size. The default size was 4, so I changed it to 16 and yielded some results. With the increased pbuf pool size I am able to ping the board continuously now, but other functions that were working before (before chanign the files from 1.4.1 to 2.0.0) such as an HTTP page and SNMP still do not work. Here is an example of the debugging when the board is powered on. udp_bind(ipaddr = 0.0.0.0, port = 161) udp_bind: bound to 0.0.0.0, port 161) netif: netmask of interface set to 255.255.255.0 netif: GW address of interface set to 192.168.101.1 netif_set_ipaddr: netif address being changed netif: IP address of interface set to 192.168.101.100 pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000a77c pbuf_alloc(length=1536) == 0x2000a77c gmac_rx_populate_queue: new pbuf allocated: 0x2000a77c [idx=0] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000a16c pbuf_alloc(length=1536) == 0x2000a16c gmac_rx_populate_queue: new pbuf allocated: 0x2000a16c [idx=1] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20009b5c pbuf_alloc(length=1536) == 0x20009b5c gmac_rx_populate_queue: new pbuf allocated: 0x20009b5c [idx=2] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000954c pbuf_alloc(length=1536) == 0x2000954c gmac_rx_populate_queue: new pbuf allocated: 0x2000954c [idx=3] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20008f3c pbuf_alloc(length=1536) == 0x20008f3c gmac_rx_populate_queue: new pbuf allocated: 0x20008f3c [idx=4] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000892c pbuf_alloc(length=1536) == 0x2000892c gmac_rx_populate_queue: new pbuf allocated: 0x2000892c [idx=5] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000831c pbuf_alloc(length=1536) == 0x2000831c gmac_rx_populate_queue: new pbuf allocated: 0x2000831c [idx=6] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20007d0c pbuf_alloc(length=1536) == 0x20007d0c gmac_rx_populate_queue: new pbuf allocated: 0x20007d0c [idx=7] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x200076fc pbuf_alloc(length=1536) == 0x200076fc gmac_rx_populate_queue: new pbuf allocated: 0x200076fc [idx=8] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x200070ec pbuf_alloc(length=1536) == 0x200070ec gmac_rx_populate_queue: new pbuf allocated: 0x200070ec [idx=9] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20006adc pbuf_alloc(length=1536) == 0x20006adc gmac_rx_populate_queue: new pbuf allocated: 0x20006adc [idx=10] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x200064cc pbuf_alloc(length=1536) == 0x200064cc gmac_rx_populate_queue: new pbuf allocated: 0x200064cc [idx=11] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20005ebc pbuf_alloc(length=1536) == 0x20005ebc gmac_rx_populate_queue: new pbuf allocated: 0x20005ebc [idx=12] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x200058ac pbuf_alloc(length=1536) == 0x200058ac gmac_rx_populate_queue: new pbuf allocated: 0x200058ac [idx=13] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000529c pbuf_alloc(length=1536) == 0x2000529c gmac_rx_populate_queue: new pbuf allocated: 0x2000529c [idx=14] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20004c8c pbuf_alloc(length=1536) == 0x20004c8c gmac_rx_populate_queue: new pbuf allocated: 0x20004c8c [idx=15] netif: added interface en IP addr 192.168.101.100 netmask 255.255.255.0 gw 192.168.101.1 netif: setting default interface en Here's some debugging that pops up throughout. gmac_low_level_input: DMA buffer 0x2000a77c received, size=64 [idx=0] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 gmac_rx_populate_queue: pbuf allocation failure ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:f0:de:f1:47:25:9a, type:806 pbuf_header: old 0x2000a78c new 0x2000a79a (-14) etharp_update_arp_entry: 192.168.101.10 - f0:de:f1:47:25:9a etharp_find_entry: found empty entry 0 etharp_find_entry: no empty entry found and not allowed to recycle etharp_input: incoming ARP request etharp_input: ARP request was not for us. pbuf_free(0x2000a77c) pbuf_free: deallocating 0x2000a77c gmac_low_level_input: DMA buffer 0x2000a16c received, size=64 [idx=1] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000a77c pbuf_alloc(length=1536) == 0x2000a77c gmac_rx_populate_queue: new pbuf allocated: 0x2000a77c [idx=0] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 gmac_rx_populate_queue: pbuf allocation failure ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:f0:de:f1:47:25:9a, type:806 pbuf_header: old 0x2000a17c new 0x2000a18a (-14) etharp_update_arp_entry: 192.168.101.10 - f0:de:f1:47:25:9a etharp_find_entry: found empty entry 0 etharp_find_entry: no empty entry found and not allowed to recycle etharp_input: incoming ARP request etharp_input: ARP request was not for us. pbuf_free(0x2000a16c) pbuf_free: deallocating 0x2000a16c gmac_low_level_input: DMA buffer 0x20009b5c received, size=64 [idx=2] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000a16c pbuf_alloc(length=1536) == 0x2000a16c gmac_rx_populate_queue: new pbuf allocated: 0x2000a16c [idx=1] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 gmac_rx_populate_queue: pbuf allocation failure ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:f0:de:f1:47:25:9a, type:806 pbuf_header: old 0x20009b6c new 0x20009b7a (-14) etharp_update_arp_entry: 0.0.0.0 - f0:de:f1:47:25:9a etharp_update_arp_entry: will not add non-unicast IP address to ARP cache etharp_input: incoming ARP request etharp_input: ARP request was not for us. pbuf_free(0x20009b5c) pbuf_free: deallocating 0x20009b5c gmac_low_level_input: DMA buffer 0x2000954c received, size=64 [idx=3] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20009b5c pbuf_alloc(length=1536) == 0x20009b5c gmac_rx_populate_queue: new pbuf allocated: 0x20009b5c [idx=2] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 gmac_rx_populate_queue: pbuf allocation failure ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:f0:de:f1:47:25:9a, type:806 pbuf_header: old 0x2000955c new 0x2000956a (-14) etharp_update_arp_entry: 192.168.101.10 - f0:de:f1:47:25:9a etharp_find_entry: found empty entry 0 etharp_find_entry: no empty entry found and not allowed to recycle etharp_input: incoming ARP request etharp_input: ARP request was not for us. pbuf_free(0x2000954c) pbuf_free: deallocating 0x2000954c gmac_low_level_input: DMA buffer 0x20008f3c received, size=64 [idx=4] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x2000954c pbuf_alloc(length=1536) == 0x2000954c gmac_rx_populate_queue: new pbuf allocated: 0x2000954c [idx=3] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 gmac_rx_populate_queue: pbuf allocation failure ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:f0:de:f1:47:25:9a, type:806 pbuf_header: old 0x20008f4c new 0x20008f5a (-14) etharp_update_arp_entry: 192.168.101.10 - f0:de:f1:47:25:9a etharp_find_entry: found empty entry 0 etharp_find_entry: no empty entry found and not allowed to recycle etharp_input: incoming ARP request etharp_input: ARP request was not for us. pbuf_free(0x20008f3c) pbuf_free: deallocating 0x20008f3c gmac_low_level_input: DMA buffer 0x2000892c received, size=64 [idx=5] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20008f3c pbuf_alloc(length=1536) == 0x20008f3c gmac_rx_populate_queue: new pbuf allocated: 0x20008f3c [idx=4] pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 gmac_rx_populate_queue: pbuf allocation failure ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:f0:de:f1:47:25:9a, type:806 pbuf_header: old 0x2000893c new 0x2000894a (-14) etharp_update_arp_entry: 0.0.0.0 - f0:de:f1:47:25:9a etharp_update_arp_entry: will not add non-unicast IP address to ARP cache etharp_input: incoming ARP request etharp_input: ARP request was not for us. pbuf_free(0x2000892c) pbuf_free: deallocating 0x2000892c And what is says when I try to contact the board via SNMP for example. pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x20005ebc pbuf_alloc(length=1536) == 0x20005ebc pbuf_alloc(length=1536) pbuf_alloc: allocated pbuf 0x0 pbuf_header: old 0x200058bc new 0x200058ca (-14) pbuf_header: old 0x200058ca new 0x200058de (-20) udp_input: received datagram of length 48 UDP header: +-------------------------------+ | 55459 | 161 | (src port, dest port) +-------------------------------+ | 48 | 0x1de5 | (len, chksum) +-------------------------------+ udp (192.168.101.100, 161) <-- (192.168.101.10, 55459) pcb (0.0.0.0, 161) <-- (0.0.0.0, 0) udp_input: calculating checksum pbuf_header: old 0x200058de new 0x200058e6 (-8) pbuf_alloc(length=1472) pbuf_alloc(length=1472) == 0x20003bdc SNMP get-next request udp_send udp_send: No route to 192.168.101.10 pbuf_free(0x20003bdc) pbuf_free: deallocating 0x20003bdc pbuf_free(0x200058ac) pbuf_free: deallocating 0x200058ac Any ideas as to what could be causing my issues? Thanks in advance for any help regarding this issue. Nick ====================================================================== The information contained in this e-mail, including all of its attachments, is confidential and proprietary information of IPG Photonics and its affiliates and intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by telephone or e-mail, and destroy this communication and all copies. Thank you. ======================================================================= This Email has been scanned for all viruses by IPG Photonics Email Scanning Services.
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