61cb97c58e
for cases where hash is invalid (non TCP/UDP) let us remap the traffic to a configured REO DESTINATION ring instead of using default ring 0. Change-Id: I3d08f684f1914b60a2457bdcc5c184fc8a0068e7
311 line
10 KiB
C
311 line
10 KiB
C
/*
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* Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "hal_api.h"
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/* TODO: See if the following definition is available in HW headers */
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#define HAL_REO_OWNED 4
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#define HAL_REO_QUEUE_DESC 8
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#define HAL_REO_QUEUE_EXT_DESC 9
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/* TODO: Using associated link desc counter 1 for Rx. Check with FW on
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* how these counters are assigned
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*/
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#define HAL_RX_LINK_DESC_CNTR 1
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/* TODO: Following definition should be from HW headers */
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#define HAL_DESC_REO_OWNED 4
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/* TODO: Move this to common header file */
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static inline void hal_uniform_desc_hdr_setup(uint32_t *desc, uint32_t owner,
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uint32_t buffer_type)
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{
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HAL_DESC_SET_FIELD(desc, UNIFORM_DESCRIPTOR_HEADER_0, OWNER,
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owner);
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HAL_DESC_SET_FIELD(desc, UNIFORM_DESCRIPTOR_HEADER_0, BUFFER_TYPE,
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buffer_type);
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}
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#ifndef TID_TO_WME_AC
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#define WME_AC_BE 0 /* best effort */
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#define WME_AC_BK 1 /* background */
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#define WME_AC_VI 2 /* video */
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#define WME_AC_VO 3 /* voice */
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#define TID_TO_WME_AC(_tid) ( \
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(((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \
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(((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \
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(((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \
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WME_AC_VO)
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#endif
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#define HAL_NON_QOS_TID 16
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/**
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* hal_reo_qdesc_setup - Setup HW REO queue descriptor
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*
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* @hal_soc: Opaque HAL SOC handle
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* @ba_window_size: BlockAck window size
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* @start_seq: Starting sequence number
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* @hw_qdesc_vaddr: Virtual address of REO queue descriptor memory
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* @hw_qdesc_paddr: Physical address of REO queue descriptor memory
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* @tid: TID
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*
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*/
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void hal_reo_qdesc_setup(void *hal_soc, int tid, uint32_t ba_window_size,
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uint32_t start_seq, void *hw_qdesc_vaddr, qdf_dma_addr_t hw_qdesc_paddr,
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int pn_type)
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{
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uint32_t *reo_queue_desc = (uint32_t *)hw_qdesc_vaddr;
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uint32_t *reo_queue_ext_desc;
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uint32_t reg_val;
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uint32_t pn_enable, pn_size;
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qdf_mem_zero(hw_qdesc_vaddr, sizeof(struct rx_reo_queue));
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hal_uniform_desc_hdr_setup(reo_queue_desc, HAL_DESC_REO_OWNED,
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HAL_REO_QUEUE_DESC);
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/* This a just a SW meta data and will be copied to REO destination
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* descriptors indicated by hardware.
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* TODO: Setting TID in this field. See if we should set something else.
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*/
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_1,
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RECEIVE_QUEUE_NUMBER, tid);
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2,
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VLD, 1);
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2,
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ASSOCIATED_LINK_DESCRIPTOR_COUNTER, HAL_RX_LINK_DESC_CNTR);
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/*
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* Fields DISABLE_DUPLICATE_DETECTION and SOFT_REORDER_ENABLE will be 0
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*/
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reg_val = TID_TO_WME_AC(tid);
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2, AC, reg_val);
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if (ba_window_size < 1)
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ba_window_size = 1;
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/* Set RTY bit for non-BA case. Duplicate detection is currently not
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* done by HW in non-BA case if RTY bit is not set.
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* TODO: This is a temporary War and should be removed once HW fix is
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* made to check and discard duplicates even if RTY bit is not set.
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*/
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if (ba_window_size == 1)
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2, RTY, 1);
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2, BA_WINDOW_SIZE,
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ba_window_size - 1);
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switch (pn_type) {
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case HAL_PN_WPA:
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pn_enable = 1;
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pn_size = PN_SIZE_48;
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case HAL_PN_WAPI_EVEN:
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case HAL_PN_WAPI_UNEVEN:
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pn_enable = 1;
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pn_size = PN_SIZE_128;
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default:
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pn_enable = 0;
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}
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2, PN_CHECK_NEEDED,
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pn_enable);
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if (pn_type == HAL_PN_WAPI_EVEN)
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2,
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PN_SHALL_BE_EVEN, 1);
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else if (pn_type == HAL_PN_WAPI_UNEVEN)
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2,
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PN_SHALL_BE_UNEVEN, 1);
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2, PN_HANDLING_ENABLE,
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pn_enable);
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2, PN_SIZE,
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pn_size);
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/* TODO: Check if RX_REO_QUEUE_2_IGNORE_AMPDU_FLAG need to be set
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* based on BA window size and/or AMPDU capabilities
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*/
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_2,
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IGNORE_AMPDU_FLAG, 1);
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if (start_seq <= 0xfff)
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_3, SSN,
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start_seq);
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/* TODO: SVLD should be set to 1 if a valid SSN is received in ADDBA,
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* but REO is not delivering packets if we set it to 1. Need to enable
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* this once the issue is resolved */
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HAL_DESC_SET_FIELD(reo_queue_desc, RX_REO_QUEUE_3, SVLD, 0);
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/* TODO: Check if we should set start PN for WAPI */
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#ifdef notyet
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/* Setup first queue extension if BA window size is more than 1 */
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if (ba_window_size > 1) {
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reo_queue_ext_desc =
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(uint32_t *)(((struct rx_reo_queue *)reo_queue_desc) +
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1);
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qdf_mem_zero(reo_queue_ext_desc,
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sizeof(struct rx_reo_queue_ext));
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hal_uniform_desc_hdr_setup(reo_queue_ext_desc,
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HAL_DESC_REO_OWNED, HAL_REO_QUEUE_EXT_DESC);
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}
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/* Setup second queue extension if BA window size is more than 105 */
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if (ba_window_size > 105) {
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reo_queue_ext_desc = (uint32_t *)
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(((struct rx_reo_queue_ext *)reo_queue_ext_desc) + 1);
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qdf_mem_zero(reo_queue_ext_desc,
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sizeof(struct rx_reo_queue_ext));
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hal_uniform_desc_hdr_setup(reo_queue_ext_desc,
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HAL_DESC_REO_OWNED, HAL_REO_QUEUE_EXT_DESC);
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}
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/* Setup third queue extension if BA window size is more than 210 */
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if (ba_window_size > 210) {
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reo_queue_ext_desc = (uint32_t *)
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(((struct rx_reo_queue_ext *)reo_queue_ext_desc) + 1);
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qdf_mem_zero(reo_queue_ext_desc,
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sizeof(struct rx_reo_queue_ext));
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hal_uniform_desc_hdr_setup(reo_queue_ext_desc,
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HAL_DESC_REO_OWNED, HAL_REO_QUEUE_EXT_DESC);
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}
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#else
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/* TODO: HW queue descriptors are currently allocated for max BA
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* window size for all QOS TIDs so that same descriptor can be used
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* later when ADDBA request is recevied. This should be changed to
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* allocate HW queue descriptors based on BA window size being
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* negotiated (0 for non BA cases), and reallocate when BA window
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* size changes and also send WMI message to FW to change the REO
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* queue descriptor in Rx peer entry as part of dp_rx_tid_update.
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*/
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if (tid != HAL_NON_QOS_TID) {
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reo_queue_ext_desc = (uint32_t *)
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(((struct rx_reo_queue *)reo_queue_desc) + 1);
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qdf_mem_zero(reo_queue_ext_desc, 3 *
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sizeof(struct rx_reo_queue_ext));
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/* Initialize first reo queue extension descriptor */
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hal_uniform_desc_hdr_setup(reo_queue_ext_desc,
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HAL_DESC_REO_OWNED, HAL_REO_QUEUE_EXT_DESC);
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/* Initialize second reo queue extension descriptor */
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reo_queue_ext_desc = (uint32_t *)
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(((struct rx_reo_queue_ext *)reo_queue_ext_desc) + 1);
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hal_uniform_desc_hdr_setup(reo_queue_ext_desc,
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HAL_DESC_REO_OWNED, HAL_REO_QUEUE_EXT_DESC);
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/* Initialize third reo queue extension descriptor */
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reo_queue_ext_desc = (uint32_t *)
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(((struct rx_reo_queue_ext *)reo_queue_ext_desc) + 1);
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hal_uniform_desc_hdr_setup(reo_queue_ext_desc,
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HAL_DESC_REO_OWNED, HAL_REO_QUEUE_EXT_DESC);
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}
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#endif
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}
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/**
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* hal_reo_setup - Initialize HW REO block
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*
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* @hal_soc: Opaque HAL SOC handle
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* @reo_params: parameters needed by HAL for REO config
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*/
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void hal_reo_setup(void *hal_soc,
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struct hal_reo_params *reo_params)
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{
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struct hal_soc *soc = (struct hal_soc *)hal_soc;
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HAL_REG_WRITE(soc, HWIO_REO_R0_GENERAL_ENABLE_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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HAL_SM(HWIO_REO_R0_GENERAL_ENABLE,
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FRAGMENT_DEST_RING, HAL_SRNG_REO_EXCEPTION) |
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HAL_SM(HWIO_REO_R0_GENERAL_ENABLE, AGING_LIST_ENABLE, 1) |
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HAL_SM(HWIO_REO_R0_GENERAL_ENABLE, AGING_FLUSH_ENABLE, 1));
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/* Other ring enable bits and REO_ENABLE will be set by FW */
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/* TODO: Setup destination ring mapping if enabled */
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/* TODO: Error destination ring setting is left to default.
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* Default setting is to send all errors to release ring.
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*/
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HAL_REG_WRITE(soc,
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HWIO_REO_R0_AGING_THRESHOLD_IX_0_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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HAL_DEFAULT_REO_TIMEOUT_MS * 1000);
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HAL_REG_WRITE(soc,
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HWIO_REO_R0_AGING_THRESHOLD_IX_1_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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(HAL_DEFAULT_REO_TIMEOUT_MS * 1000));
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HAL_REG_WRITE(soc,
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HWIO_REO_R0_AGING_THRESHOLD_IX_2_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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(HAL_DEFAULT_REO_TIMEOUT_MS * 1000));
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HAL_REG_WRITE(soc,
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HWIO_REO_R0_AGING_THRESHOLD_IX_3_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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(HAL_DEFAULT_REO_TIMEOUT_MS * 1000));
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/*
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* When hash based routing is enabled, routing of the rx packet
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* is done based on the following value: 1 _ _ _ _ The last 4
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* bits are based on hash[3:0]. This means the possible values
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* are 0x10 to 0x1f. This value is used to look-up the
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* ring ID configured in Destination_Ring_Ctrl_IX_* register.
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* The Destination_Ring_Ctrl_IX_2 and Destination_Ring_Ctrl_IX_3
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* registers need to be configured to set-up the 16 entries to
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* map the hash values to a ring number. There are 3 bits per
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* hash entry which are mapped as follows:
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* 0: TCL, 1:SW1, 2:SW2, * 3:SW3, 4:SW4, 5:Release, 6:FW(WIFI),
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* 7: NOT_USED.
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*/
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if (reo_params->rx_hash_enabled) {
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HAL_REG_WRITE(soc,
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HWIO_REO_R0_DESTINATION_RING_CTRL_IX_2_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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reo_params->remap1);
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QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
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FL("HWIO_REO_R0_DESTINATION_RING_CTRL_IX_2_ADDR 0x%x\n"),
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HAL_REG_READ(soc,
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HWIO_REO_R0_DESTINATION_RING_CTRL_IX_2_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET)));
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HAL_REG_WRITE(soc,
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HWIO_REO_R0_DESTINATION_RING_CTRL_IX_3_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET),
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reo_params->remap2);
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QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
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FL("HWIO_REO_R0_DESTINATION_RING_CTRL_IX_3_ADDR 0x%x\n"),
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HAL_REG_READ(soc,
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HWIO_REO_R0_DESTINATION_RING_CTRL_IX_3_ADDR(
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SEQ_WCSS_UMAC_REO_REG_OFFSET)));
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}
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/* TODO: Check if the following registers shoould be setup by host:
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* AGING_CONTROL
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* HIGH_MEMORY_THRESHOLD
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* GLOBAL_LINK_DESC_COUNT_THRESH_IX_0[1,2]
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* GLOBAL_LINK_DESC_COUNT_CTRL
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*/
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}
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