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qcacmn: Add GRO support to NAPI+Rx_thread processing model

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GRO aggregations are hanging out of NAPI instance and we cannot use the
hif NAPI instance in Rx thread as gro_list inside NAPI is flushed out
at the start and end of NAPI poll, this will corrupt the gro_list on
which rx_thread is working. Address this concern by creating dummy
NAPI instances mapping to each hif NAPI and by not scheduling them.

Change-Id: I517c4c6158ed3ac073f5f617afde46c7ed07ff3e
CRs-Fixed: 2128457
This commit is contained in:
Manjunathappa Prakash
2018-03-28 20:05:56 -07:00
committed by nshrivas
parent 848fc04585
commit 56023f5649
7 changed files with 260 additions and 32 deletions
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33
hif/inc/hif.h
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@@ -191,8 +191,12 @@ struct qca_napi_info {
uint8_t cpu;
int irq;
struct qca_napi_stat stats[NR_CPUS];
#ifdef RECEIVE_OFFLOAD
/* will only be present for data rx CE's */
void (*lro_flush_cb)(void *);
void (*offld_flush_cb)(void *);
struct napi_struct rx_thread_napi;
struct net_device rx_thread_netdev;
#endif /* RECEIVE_OFFLOAD */
qdf_lro_ctx_t lro_ctx;
};
@@ -653,6 +657,28 @@ int hif_check_soc_status(struct hif_opaque_softc *hif_ctx);
#endif
void hif_get_hw_info(struct hif_opaque_softc *hif_ctx, u32 *version,
u32 *revision, const char **target_name);
#ifdef RECEIVE_OFFLOAD
/**
* hif_offld_flush_cb_register() - Register the offld flush callback
* @scn: HIF opaque context
* @offld_flush_handler: Flush callback is either ol_flush, incase of rx_thread
* Or GRO/LRO flush when RxThread is not enabled. Called
* with corresponding context for flush.
* Return: None
*/
void hif_offld_flush_cb_register(struct hif_opaque_softc *scn,
void (offld_flush_handler)(void *ol_ctx));
/**
* hif_offld_flush_cb_deregister() - deRegister the offld flush callback
* @scn: HIF opaque context
*
* Return: None
*/
void hif_offld_flush_cb_deregister(struct hif_opaque_softc *scn);
#endif
void hif_disable_isr(struct hif_opaque_softc *hif_ctx);
void hif_reset_soc(struct hif_opaque_softc *hif_ctx);
void hif_save_htc_htt_config_endpoint(struct hif_opaque_softc *hif_ctx,
@@ -828,11 +854,6 @@ int ol_copy_ramdump(struct hif_opaque_softc *scn);
void hif_crash_shutdown(struct hif_opaque_softc *hif_ctx);
void hif_get_hw_info(struct hif_opaque_softc *hif_ctx, u32 *version,
u32 *revision, const char **target_name);
void hif_lro_flush_cb_register(struct hif_opaque_softc *hif_ctx,
void (lro_flush_handler)(void *arg),
void *(lro_init_handler)(void));
void hif_lro_flush_cb_deregister(struct hif_opaque_softc *hif_ctx,
void (lro_deinit_cb)(void *arg));
bool hif_needs_bmi(struct hif_opaque_softc *hif_ctx);
enum qdf_bus_type hif_get_bus_type(struct hif_opaque_softc *hif_hdl);
struct hif_target_info *hif_get_target_info_handle(struct hif_opaque_softc *