can LTP be used to verify the ASIC design of peripherals
HI : Is it appropriate to use linux test project for ASIC verification purpose?such as msdc controller? Has someone already done it with LTP? Thanks for your help. Regards Rui ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: embedded ftp server which support IPV6
After I turn on the unix domain socket of networking options, the socketpair failure disappear when I connect from pc side. Thanks. Rui From: Mulyadi Santosa [mailto:mulyadi.sant...@gmail.com] Sent: 2011年7月30日 9:12 To: Gang Lei (雷刚) Cc: kernelnewbies@kernelnewbies.org Subject: Re: emneded ftp server which support IPV6 On Fri, Jul 29, 2011 at 08:24, Gang Lei (雷刚) wrote: > > Socketpair failure is caused by configuration of linux kernel, after I > correct it, I can successfully login in the server on board from PC, the > static binary size is only 150k bytes. you welcomeanyway, what kernel config is that? -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: emneded ftp server which support IPV6
Socketpair failure is caused by configuration of linux kernel, after I correct it, I can successfully login in the server on board from PC, the static binary size is only 150k bytes. Thanks for your help! Rui From: Mulyadi Santosa [mailto:mulyadi.sant...@gmail.com] Sent: 2011年7月28日 10:58 To: Gang Lei (雷刚) Cc: kernelnewbies@kernelnewbies.org Subject: Re: emneded ftp server which support IPV6 Hi Gang Lei... On Thu, Jul 28, 2011 at 08:53, Gang Lei (雷刚) wrote: BTW, could you please using plain text only message? thanks... > I had built vsftpd binary out and tried it on my board but it failed on > client side “socket pair failed”, do you have any clue of this error? hm, no idea maybe you need to check "man socketpair" > Meanwhile, can wget of busybox support IPV6? I just want to generate some > IPV6 traffic on my board, so either client or server could be helpful. I suggest to use curl if possible...AFAIK it is more enhanced that wget in some areas... -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: emneded ftp server which support IPV6
HI Mulyadi: Thanks for the reply. I had built vsftpd binary out and tried it on my board but it failed on client side “socket pair failed”, do you have any clue of this error? Meanwhile, can wget of busybox support IPV6? I just want to generate some IPV6 traffic on my board, so either client or server could be helpful. Thanks! Rui. From: Mulyadi Santosa [mailto:mulyadi.sant...@gmail.com] Sent: 2011年7月27日 12:26 To: Gang Lei (雷刚) Cc: kernelnewbies@kernelnewbies.org Subject: Re: emneded ftp server which support IPV6 2011/7/27 Gang Lei (雷刚) > > Hello all: > > > > Could you please list any embedded ftp server which can support IPV6 > nowadays? The image size should be less than 1M and it can run in standalone > mode, I need such a server running on my arm926ej-s board. not sure what you mean by "image size", but maybe you can try vsftpd (https://security.appspot.com/vsftpd.html). perhaps uClibc could help to make it as small binary as possible. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
emneded ftp server which support IPV6
Hello all: Could you please list any embedded ftp server which can support IPV6 nowadays? The image size should be less than 1M and it can run in standalone mode, I need such a server running on my arm926ej-s board. Thanks for your help in advance! Rui ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: flush_cache_all API
Hi : The SCU can solve all the cache coherency problems? From: kernelnewbies-boun...@kernelnewbies.org [mailto:kernelnewbies-boun...@kernelnewbies.org] On Behalf Of Vladimir Murzin Sent: 2011年7月11日 17:51 To: naveen yadav Cc: kernelnewbies@kernelnewbies.org Subject: Re: flush_cache_all API On 7/11/11, naveen yadav wrote: > Hi All, > > I am using Multi-core ARM machine. > If I use flush_cache_all() API, will it flush only current CPU cache > ?, or flush all cache's of all core's. > > Thanks > > ___ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > Hi! I think, it doesn't matter as soon as SCU is involved. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: writting NIC driver for IPV6
Thanks a lot, Michi. Then how can I verify that IPV6 can be really running on our NIC? Of course I have to build a kernel which can support IPV6 firstly, but how to verify it’s really working? Use ping6? Rick From: kernelnewbies-boun...@kernelnewbies.org [mailto:kernelnewbies-boun...@kernelnewbies.org] On Behalf Of Michael Blizek Sent: 2011年6月29日 0:38 To: Gang Lei (雷刚) Cc: kernelnewbies@kernelnewbies.org Subject: Re: writting NIC driver for IPV6 Hi! On 18:02 Tue 28 Jun , Gang Lei () wrote: > HI all: > > Thanks for your help in advance. Could anyone tell me how to revise NIC > driver to support IPV6? Or it doesn??t need driver??s change to support IPV6? > Can anyone throw some light on this question? You do not need to change the nic driver to support IPv6 unless it's the driver is totally broken. Network cards and drivers operate on layer 2 and generally do not care what you do on layer 3 and above. However in some cases hardware accelerations like "TCP segmentation offloading" may be available which partly violates this layer separation. But this is "only" a performance issue. -Michi -- programing a layer 3+4 network protocol for mesh networks see http://michaelblizek.twilightparadox.com ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
writting NIC driver for IPV6
HI all: Thanks for your help in advance. Could anyone tell me how to revise NIC driver to support IPV6? Or it doesn’t need driver’s change to support IPV6? Can anyone throw some light on this question? Regards Rick ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
what should NIC do in order to support TSO?
HI All: As the title. I saw someone mentioned that NIC should support S/G DMA, TCP checksum offload and auto insert IP header,TCP header. The S/G DMA is easy to understand since large mount of data can’t be allocated into one single page, but why it need hardware to auto insert TCP header? As I know, the TCP header should only exist in the first fragments, and it ‘s already in skb->data, for other fragments, it’s in skb->frags, hardware only need to insert IP header for them, so I don’t see such need to auto insert TCP header by Hardware. And another question about checksum offload is that, how can hardware support rx checksum verification if received packets are fragmented? Thanks for your answer in advance. Rick ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
question about nic driver implementation(about TCP checksum offload )
Hi All: I want to build TOE(tcp checksum offload engine) in our hardware to improve the overall performance of NIC, however, i met a problem as follow: AS you know, the TCP checksum protect the TCP pseudo header+TCP header+Data, if TCP packet is fragmented into many fragments, the hardware will have not enough information to generate tcp checksum for the whole TCP PDU, how to overcome this problem? I searched in NIC driver source code of different vendor, found that TOE is generally used, I wonder whether the kernel will calculate the TCP checksum even we set features of this device as NETIF_F_IP_CSUM when fragmentation happens. Can anyone throw some lights on this problem? Thanks a lot. Rick. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
dma_alloc_from_coherent
HI: Can anybody point out that from which pool that function will allocate coherent memory for DMA use? I checked the function source code, the comments is as follow: This function should be only called from per-arch dma_alloc_coherent() * to support allocation from per-device coherent memory pools. * * Returns 0 if dma_alloc_coherent should continue with allocating from * generic memory areas, or !0 if dma_alloc_coherent should return @ret. Can anyone elaborate it? What’s per-device coherent memory pools, when are those pools setup and how? Thanks a lot! Rick lei ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
