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path: root/drivers/net/wireless/ti/wlcore/tx.c (follow)
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2012-06-26wlcore: fix broken TX due to wrong queuing of recoveryEyal Shapira1-11/+24
commit 14bba17b "wl12xx: Propagate errors from wl1271_raw_write32" breaks down TX in certain scenarios. wl1271_irq_locked() propagates errors from wl1271_tx_work_locked however it may return -EBUSY when the FW queues are full which is a legitimate case and not a a real error. In this case a recovery is triggered by wl1271_irq and this keeps repeating itself so TX is completely broken. Fix it by avoiding propagating return values as errors even if they aren't. Only bus (SDIO or SPI) ops failures would be progagated as only these should trigger recovery. Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22wlcore: Propagate errors from wl1271_raw_write32Ido Yariv1-6/+11
Propagate errors from wl1271_raw_write32 and request for recovery when appropriate. Also rename prefixes of wlcore functions which their prototypes had to be changed. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22wlcore: Propagate errors from wl1271_writeIdo Yariv1-8/+21
Propagate errors from wl1271_write and request for recovery when appropriate. Also rename prefixes of wlcore functions which their prototypes had to be changed. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22wlcore: Propagate errors from wl1271_readIdo Yariv1-4/+11
Propagate errors from wl1271_read and request for recovery when appropriate. Also rename prefixes of wlcore functions which their prototypes had to be changed. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13wlcore: send EAPOLs with basic rate policyEyal Shapira1-3/+7
EAPOLs are sent at high rates as they are considered data packets. Some APs like Motorola Symbol AP7131 and AP650 don't respond well to these rates and don't respond with EAPOL 3/4 consistently. When sending EAPOL 2/4 at 54Mbps we've seen approx 30% success rate in getting EAPOL 3/4 response while using 11Mbps we got 100% success. To increase the chances of successful 4-Way handshake with such APs, send EAPOLs with basic rate policy in order to avoid high rates. Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-12Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davemJohn W. Linville1-38/+147
2012-06-07wl18xx: pad only last frame in aggregration buffer for PG2Ido Reis1-5/+11
In PG2 only the last frame in the aggregate buffer should be aligned to the sdio block size. This frame's header msb should be set to 0, while in all the previous frames in the aggregation buffer, this bit should be set to 1. [Add a HW op for setting the frame ctrl bit only for 18xx. Other minor cleanups - Arik] [Make the pre_pkt_send operation optional -- Luca] Signed-off-by: Ido Reis <idor@ti.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06wireless: Remove casts to same typeJoe Perches1-2/+1
Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force, __iomem and __user. @@ type T; T *p; @@ - (T *)p + p Neatened the mwifiex_deauthenticate_infra function which was doing odd things with array pointers and not using is_zero_ether_addr. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06wlcore/wl12xx/wl18xx: implement op_set_key per HW archArik Nemtsov1-0/+3
The 12xx set_key just calls the common wlcore_set_key function, in order to program the keys into the FW. The 18xx variant changes the spare block count when a GEM or TKIP key is set. Also modify the get_spare_blocks HW op for 18xx to return the correct numbers of spare blocks, according to what is currently set in FW. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06wlcore: stop queues on Tx flushArik Nemtsov1-1/+10
Stop network queues during Tx flush, and also drop other internal mac80211 packets (mgmt) that may arrive when the queues are stopped. When flush is done all driver queues are clear, forcefully if needed. Protect the Tx flush operation with a new mutex, to prevent concurrency that can mess us queue state. Based on a patch by Eliad Peller <eliad@wizery.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06wlcore: add stop reason bitmap for waking/starting queuesArik Nemtsov1-12/+97
Allow the driver to wake/stop the queues for multiple reasons. A queue is started when no stop-reasons exist. Convert all wake/stop queue calls to use the new API. Before, a stopped queue was almost synonymous a high-watermark on Tx. Remove a bit of code in wl12xx_tx_reset() that relied on it. Internal packets arriving from mac80211 are also discarded when a queue is stopped. A notable exception to this is the watermark reason, which is a "soft"-stop reason. We allow traffic to gradually come to a halt, but we don't mind spurious packets here and there. This is merely a flow regulation mechanism. Based on a similar patch by Eliad Peller <eliadWizery.com>. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06wlcore/wl12xx/wl18xx: handle spare blocks spacial cases per archArik Nemtsov1-10/+10
Add a HW op for getting spare blocks. 12xx cards require 2 spare blocks for GEM encrypted SKBs, regardless of VIFs or keys programmed into the FW. 18xx cards require 2 spare blocks when there are any connected TKIP or GEM VIFs. For now always return 2 spare blocks, as this works with all networks. The special case TKIP/GEM functionality is added at a later patch. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06wlcore/wl12xx/wl18xx: introduce quirk to remove TKIP header spaceArik Nemtsov1-3/+6
18xx chips do not require extra space in the TKIP header. Introduce a new HW quirk to allow us to make this feature arch-specific. 12xx chip will now have this quirk. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05wlcore: use correct link for bcast/multicast framesEliad Peller1-3/+3
Multicast management frames (e.g. global deauth) should be sent out on the bcast link, rather than the global, which should be used only for pre-added stations (e.g. for auth/assoc resp). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05wlcore: support peer MIMO ratesArik Nemtsov1-2/+2
Parse the peer ht_cap element containing MCS8-MCS15 rates and pass it to the FW. Rates unsupported by the HW will be sanitized by mac80211 before reaching us. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05wlcore/wl18xx: add hw op for setting Tx HW checksumArik Nemtsov1-1/+2
Some chip families are capable of checksumming certain classes of Tx packets in HW. Indicate this fact in the netdev features and perform the HW checksum by protocol type for the 18xx family. Fix the location of the skb network header when we move it so we can rely on it when setting the checksum. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05wl18xx: implement immediate Tx completionArik Nemtsov1-1/+3
Implement immediate Tx completion for the 18xx family. Move 18xx specific Tx code to new tx.c/h files and create helper header files for definitions. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: turn no-Tx-align quirk into Tx-alignArik Nemtsov1-3/+3
Inverting the quirk flag to indicate Tx-alignment. This aligns it with the similar Rx-side quirk. The call to wl1271_set_block_size() decides whether SDIO block size alignment can be used or not. In case we're using SPI, we can't use the block size alignment, so the function returns false. So we set the quirk when wl1271_set_block_size() returns true and let the wl12xx lower driver unset the bit for wl127x (since it doesn't support this quirk). Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: split Tx completion to immediate/delayedArik Nemtsov1-0/+1
One chip family employs immediate Tx completion, where knowledge of completed packets is given as part of the FW status. Another is only notified of Tx completion via the FW status, and has to read the completion status of the packets from a different location. Implement the wl12xx tx completion as a delayed Tx completion. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: add global elements to convert hw-rates to standard ratesArik Nemtsov1-4/+13
Rates reported by HW can be different between chip families. Make the rate-to-idx translation tables private per family and use them in a common translation function. Add a global element to help determine which rates are HW HT-rates. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: add hw op for setting frame length in tx_hw_descArik Nemtsov1-32/+4
Each chip family indicates the length of a frame to the HW differently. This includes different padding, alignment and other fields in the HW Tx descriptor. Put all wl12xx specific code in a hw op. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: add hw op for setting blocks in hw_tx_descArik Nemtsov1-7/+2
Each chip family has a slightly different Tx descriptor. Set the descriptor values according to family. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: add hw op for calculating hw block count per packetArik Nemtsov1-11/+7
Each chip family has a different block size and calculates the total number of HW blocks differently, with respect to alignment. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: change GEM Tx-spare blocks per-vifArik Nemtsov1-5/+4
The number of spare Tx blocks must be changed when the GEM cipher is engaged. Track set_key() operations to see if this is the case and change the Tx HW spare block count accordingly. Set the number of spare blocks for each operating mode from the low level driver. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: set the number of Tx descriptors per chip familyArik Nemtsov1-5/+5
Each chip family can have a different amount of Tx descriptors. These are set on init. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: add chip-specific identify chip operationLuciano Coelho1-2/+2
Move the code that identifies the chip ID and selects the appropriate firmware to an operation implemented by the lower driver. Also move the quirks definitions into wlcore.h and rename to WLCORE_QUIRK_*. Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wlcore/wl12xx: implement chip-specific register tablesLuciano Coelho1-6/+11
Add register tables support in wlcore, add some new IO functions to read and write to chip-specific register and data addresses. Move some common register values from wl12xx to wlcore and add the registers table to wl12xx. Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wl12xx/wlcore: move wl1271 struct to wlcore and add opsLuciano Coelho1-1/+1
In order to add chip-specific operations and prepare for future elements that need to be set by the lower driver, move the wl1271 structure to the wlcore.h file and add an empty placeholder for the operations structure. Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-04-12wl12xx/wlcore: rename wl12xx to wlcoreLuciano Coelho1-0/+1079
Rename the wl12xx driver directory to wlcore as an initial step towards the split of the driver into wlcore and wl12xx. We just rename the directory first to keep git blame happy. Signed-off-by: Luciano Coelho <coelho@ti.com>
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