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author | Felix Fietkau <nbd@openwrt.org> | 2015-10-30 15:18:03 +0000 |
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committer | Felix Fietkau <nbd@openwrt.org> | 2015-10-30 15:18:03 +0000 |
commit | ce0989439850a1306dc2e61d711b5dd50b9f2b13 (patch) | |
tree | 6787c93b9f619e553e4bd60932cae52fdaf0f811 /package/kernel/mac80211/patches/308-ath10k-cleanup-copy-engine-send-completion.patch | |
parent | ec3ee0969e6ecf49a2c98ce96f6977906ada0553 (diff) | |
download | master-31e0f0ae-ce0989439850a1306dc2e61d711b5dd50b9f2b13.tar.gz master-31e0f0ae-ce0989439850a1306dc2e61d711b5dd50b9f2b13.tar.bz2 master-31e0f0ae-ce0989439850a1306dc2e61d711b5dd50b9f2b13.zip |
mac80211: add pending ath9k/ath10k patches
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 47287
Diffstat (limited to 'package/kernel/mac80211/patches/308-ath10k-cleanup-copy-engine-send-completion.patch')
-rw-r--r-- | package/kernel/mac80211/patches/308-ath10k-cleanup-copy-engine-send-completion.patch | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/308-ath10k-cleanup-copy-engine-send-completion.patch b/package/kernel/mac80211/patches/308-ath10k-cleanup-copy-engine-send-completion.patch new file mode 100644 index 0000000000..e758665118 --- /dev/null +++ b/package/kernel/mac80211/patches/308-ath10k-cleanup-copy-engine-send-completion.patch @@ -0,0 +1,165 @@ +From: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> +Date: Fri, 23 Oct 2015 18:01:05 +0530 +Subject: [PATCH] ath10k: cleanup copy engine send completion + +The physical address necessary to unmap DMA ('bufferp') is stored +in ath10k_skb_cb as 'paddr'. ath10k doesn't rely on the meta/transfer_id +when handling send completion (htc ep id is stored in sk_buff control +buffer). So the unused output arguments {bufferp, nbytesp and transfer_idp} +are removed from CE send completion. This change is needed before removing +the shadow copy of copy engine (CE) descriptors in follow up patch. + +Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> +Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> +--- + +--- a/drivers/net/wireless/ath/ath10k/ce.c ++++ b/drivers/net/wireless/ath/ath10k/ce.c +@@ -578,17 +578,13 @@ int ath10k_ce_revoke_recv_next(struct at + * The caller takes responsibility for any necessary locking. + */ + int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state, +- void **per_transfer_contextp, +- u32 *bufferp, +- unsigned int *nbytesp, +- unsigned int *transfer_idp) ++ void **per_transfer_contextp) + { + struct ath10k_ce_ring *src_ring = ce_state->src_ring; + u32 ctrl_addr = ce_state->ctrl_addr; + struct ath10k *ar = ce_state->ar; + unsigned int nentries_mask = src_ring->nentries_mask; + unsigned int sw_index = src_ring->sw_index; +- struct ce_desc *sdesc, *sbase; + unsigned int read_index; + + if (src_ring->hw_index == sw_index) { +@@ -613,15 +609,6 @@ int ath10k_ce_completed_send_next_nolock + if (read_index == sw_index) + return -EIO; + +- sbase = src_ring->base_addr_owner_space; +- sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index); +- +- /* Return data from completed source descriptor */ +- *bufferp = __le32_to_cpu(sdesc->addr); +- *nbytesp = __le16_to_cpu(sdesc->nbytes); +- *transfer_idp = MS(__le16_to_cpu(sdesc->flags), +- CE_DESC_FLAGS_META_DATA); +- + if (per_transfer_contextp) + *per_transfer_contextp = + src_ring->per_transfer_context[sw_index]; +@@ -696,10 +683,7 @@ int ath10k_ce_cancel_send_next(struct at + } + + int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state, +- void **per_transfer_contextp, +- u32 *bufferp, +- unsigned int *nbytesp, +- unsigned int *transfer_idp) ++ void **per_transfer_contextp) + { + struct ath10k *ar = ce_state->ar; + struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); +@@ -707,9 +691,7 @@ int ath10k_ce_completed_send_next(struct + + spin_lock_bh(&ar_pci->ce_lock); + ret = ath10k_ce_completed_send_next_nolock(ce_state, +- per_transfer_contextp, +- bufferp, nbytesp, +- transfer_idp); ++ per_transfer_contextp); + spin_unlock_bh(&ar_pci->ce_lock); + + return ret; +--- a/drivers/net/wireless/ath/ath10k/ce.h ++++ b/drivers/net/wireless/ath/ath10k/ce.h +@@ -192,16 +192,10 @@ int ath10k_ce_completed_recv_next(struct + * Pops 1 completed send buffer from Source ring. + */ + int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state, +- void **per_transfer_contextp, +- u32 *bufferp, +- unsigned int *nbytesp, +- unsigned int *transfer_idp); ++ void **per_transfer_contextp); + + int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state, +- void **per_transfer_contextp, +- u32 *bufferp, +- unsigned int *nbytesp, +- unsigned int *transfer_idp); ++ void **per_transfer_contextp); + + /*==================CE Engine Initialization=======================*/ + +--- a/drivers/net/wireless/ath/ath10k/pci.c ++++ b/drivers/net/wireless/ath/ath10k/pci.c +@@ -910,9 +910,8 @@ static int ath10k_pci_diag_read_mem(stru + goto done; + + i = 0; +- while (ath10k_ce_completed_send_next_nolock(ce_diag, NULL, &buf, +- &completed_nbytes, +- &id) != 0) { ++ while (ath10k_ce_completed_send_next_nolock(ce_diag, ++ NULL) != 0) { + mdelay(1); + if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) { + ret = -EBUSY; +@@ -1073,9 +1072,8 @@ static int ath10k_pci_diag_write_mem(str + goto done; + + i = 0; +- while (ath10k_ce_completed_send_next_nolock(ce_diag, NULL, &buf, +- &completed_nbytes, +- &id) != 0) { ++ while (ath10k_ce_completed_send_next_nolock(ce_diag, ++ NULL) != 0) { + mdelay(1); + + if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) { +@@ -1139,13 +1137,9 @@ static void ath10k_pci_htc_tx_cb(struct + struct ath10k *ar = ce_state->ar; + struct sk_buff_head list; + struct sk_buff *skb; +- u32 ce_data; +- unsigned int nbytes; +- unsigned int transfer_id; + + __skb_queue_head_init(&list); +- while (ath10k_ce_completed_send_next(ce_state, (void **)&skb, &ce_data, +- &nbytes, &transfer_id) == 0) { ++ while (ath10k_ce_completed_send_next(ce_state, (void **)&skb) == 0) { + /* no need to call tx completion for NULL pointers */ + if (skb == NULL) + continue; +@@ -1215,12 +1209,8 @@ static void ath10k_pci_htt_tx_cb(struct + { + struct ath10k *ar = ce_state->ar; + struct sk_buff *skb; +- u32 ce_data; +- unsigned int nbytes; +- unsigned int transfer_id; + +- while (ath10k_ce_completed_send_next(ce_state, (void **)&skb, &ce_data, +- &nbytes, &transfer_id) == 0) { ++ while (ath10k_ce_completed_send_next(ce_state, (void **)&skb) == 0) { + /* no need to call tx completion for NULL pointers */ + if (!skb) + continue; +@@ -1796,12 +1786,8 @@ err_dma: + static void ath10k_pci_bmi_send_done(struct ath10k_ce_pipe *ce_state) + { + struct bmi_xfer *xfer; +- u32 ce_data; +- unsigned int nbytes; +- unsigned int transfer_id; + +- if (ath10k_ce_completed_send_next(ce_state, (void **)&xfer, &ce_data, +- &nbytes, &transfer_id)) ++ if (ath10k_ce_completed_send_next(ce_state, (void **)&xfer)) + return; + + xfer->tx_done = true; |