Re: Intel 7260 - limited in 5GHz spectrum
On Sat, Oct 31, 2015 at 12:12 PM, Grumbach, Emmanuel <emmanuel.grumb...@intel.com> wrote: > Hi, > > On 10/30/2015 06:37 PM, Pushpal Sidhu wrote: >> Hi, >> >> I've been working with the Intel 7260 card which advertises itself as >> dual band wireless AC card. However, I cannot get it working in AP >> mode in the 5GHz range. An $(iw list) shows that the entire 5GHz band >> has 'no IR' next to it so as not to allow device radiation (please see >> pastebin here: http://pastebin.com/T4BWnBmn). >> >> After searching around the internet a bit, it seems that the card >> doesn't allow for this mode (And is thus not really dual band?). I'd >> like to know if this is a firmware limitation and if there's a fix in >> place, or if not, why is this card limited to the spectrum it can >> radiate at? >> > > > 7260 does not (and will not) support AP mode in 5GHz band. This is of > course not a hardware limitation since it can function as a station in > this band. The limitation is due to regulatory concerns. Later devices > (8260) have the ability to be an AP in 5GHz under certain circumstances. Ah, thank you for the clarification. - Pushpal -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Intel 7260 - limited in 5GHz spectrum
Hi, I've been working with the Intel 7260 card which advertises itself as dual band wireless AC card. However, I cannot get it working in AP mode in the 5GHz range. An $(iw list) shows that the entire 5GHz band has 'no IR' next to it so as not to allow device radiation (please see pastebin here: http://pastebin.com/T4BWnBmn). After searching around the internet a bit, it seems that the card doesn't allow for this mode (And is thus not really dual band?). I'd like to know if this is a firmware limitation and if there's a fix in place, or if not, why is this card limited to the spectrum it can radiate at? Thanks, - Pushpal -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] ath10k: Fix potential Rx ring corruption
Just letting you know that this patch seems to have resolved an rx corruption I was seeing when cpu went 100% sirq constantly for several seconds. I have tested now for about an hour and have not been able to reproduce the corruption so it seems very promising. I should note that this is on an ARMv8 processor in case you're interested. Thanks, Pushpal On Fri, Jan 9, 2015 at 5:57 AM, Vasanthakumar Thiagarajan vthia...@qti.qualcomm.com wrote: When replenishing Rx buffers driver updates the address of the buffer and the index of rx buffer in rx ring to the firmware. Change in order by CPU can cause rx ring corruption. Add memory barrier before updating rx buffer index to guarantee the order. This could fix some instances of rx ring corruption due to done bit in rx attention flag not set. Signed-off-by: Vasanthakumar Thiagarajan vthia...@qti.qualcomm.com --- drivers/net/wireless/ath/ath10k/htt_rx.c |5 + 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 9c782a4..baa1c44 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -97,6 +97,11 @@ static int __ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num) } fail: + /* +* Make sure the rx buffer is updated before available buffer +* index to avoid any potential rx ring corruption. +*/ + mb(); *htt-rx_ring.alloc_idx.vaddr = __cpu_to_le32(idx); return ret; } -- 1.7.9.5 -- To unsubscribe from this list: send the line unsubscribe linux-wireless in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-wireless in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v4 0/2] ath10k: testmode support
On Thu, Sep 11, 2014 at 1:43 PM, Kalle Valo kv...@qca.qualcomm.com wrote: Kalle Valo kv...@qca.qualcomm.com writes: latest version of my testmode patches. Getting closer, more or less cosmetic changes this time :) While looking through this patchset (sorry it took two months), I have to wonder: what's this utf.bin blob? It seems in order to use testmode, we need this binary blob that I can't seem to find (I looked in linux-firmware and https://github.com/kvalo/ath10k-firmware). If, for whatever reason, this binary blob is not releasable, what's the point of adding in testmode to this driver? - Pushpal -- To unsubscribe from this list: send the line unsubscribe linux-wireless in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
