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Commit 82c96478 authored by Will Huang's avatar Will Huang Committed by nshrivas
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qcacmn: Add bi-direction dma map flag to qdf_nbuf_cb 

In case of 11w PMF tx frame, some target would dma write to this tx
buffer, it may cause smmu check fault.

Add a bi-direction map flag to mcl skb.cb[] for this special case.

Change-Id: I72a2c11abb9f3e7e8fb9c6f5290cd4f8d209b19a
CRs-Fixed: 2337204
parent 1adbe671

qdf/linux/src/i_qdf_nbuf.h

+9 −1
Original line number Diff line number Diff line
@@ -117,6 +117,8 @@ typedef union { 
 * @tx.trace.vdev_id     : vdev (for protocol trace)

 * @tx.ipa.owned   : packet owned by IPA

 * @tx.ipa.priv    : private data, used by IPA

 * @tx.dma_option.bi_map: flag to do special dma map with QDF_DMA_BIDIRECTIONAL

 * @tx.dma_option.reserved: reserved bits for future use

 * @tx.desc_id     : tx desc id, used to sync between host and fw

 */

struct qdf_nbuf_cb {
@@ -192,8 +194,12 @@ struct qdf_nbuf_cb { 
						uint32_t owned:1,

							priv:31;

					} ipa; /* 4 */

					struct {

						uint8_t bi_map:1,

							reserved:7;

					} dma_option; /* 1 byte */

					uint16_t desc_id; /* 2 bytes */

				} mcl;/* 14 bytes*/

				} mcl;/* 15 bytes*/

			} dev;

		} tx; /* 40 bytes */

	} u;
@@ -298,6 +304,8 @@ struct qdf_nbuf_cb { 
	(((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.mcl.ipa.owned)

#define QDF_NBUF_CB_TX_IPA_PRIV(skb) \

	(((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.mcl.ipa.priv)

#define QDF_NBUF_CB_TX_DMA_BI_MAP(skb) \

	(((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.mcl.dma_option.bi_map)

#define QDF_NBUF_CB_TX_DESC_ID(skb) \

	(((struct qdf_nbuf_cb *)((skb)->cb))->u.tx.dev.mcl.desc_id)

#define QDF_NBUF_CB_TX_FTYPE(skb) \