On low memory system, skb allocation failures are observed in
dp_tx_ipa_uc_attach during driver loading phase. Per kernel
memory team analysis, failures are caused by large amount of
atomic allocations. Currently when allocating IPA TX skbs,
srng spinlock is first grabbed and then skb buffers are being
requested, which makes skb allocation happen in atomic context.
Fix is to make skb allocations with srng unlocked since it is
safe for race conditions during driver loading time. This ensures
skb allocations in process context.
Change-Id: I1624276c087c8247d672fb7cea5daded07ab93a3
CRs-Fixed: 2426489
IPA driver adds is_txr_rn_db_pcie_addr and
is_evt_rn_db_pcie_addr in ipa_wdi_pipe_setup_info and
ipa_wdi_pipe_setup_info_smmu structure to check if doorbell
address is DDR address or PCIe memory mapped address. Thus
set the addr flag accordingly for IPA transfer and event
rings.
Change-Id: Ia55d14535db3818439e3884cfb61c3a1d81b86fb
CRs-Fixed: 2422162
Support WLAN IPA WDI 3.0 with SMMU-S1 enabled. Key design
considerations are captured below.
- ring base addresses are passed as struct sg_table and IPA
driver will do the IOVA mapping to IPA domain.
- ring doorbell addresses are passed as physical address and
IPA driver will do the IOVA mapping to IPA domain.
- TX/RX buffers need to be mapped to IPA domain by WLAN driver
via ipa_wdi_create|release_smmu_mapping API.
- IPA doorbell addresses returned from ipa_wdi_conn_pipes are
DDR addresses and WLAN driver needs to do the IOVA mapping
to WLAN domain.
Change-Id: I2398df58c9a9d002af7035f239eda37a86f5d00f
CRs-Fixed: 2422155
When IPA using GSI instead of UC different IPA TX and RX
clients needs to be configured. In this change when IPA
uses GSI configure appropriate TX and RX clients/pipes.
Change-Id: I0302323d91f0cc4256a1b08ddbb1345d0daa2939
CRs-Fixed: 2368003
- Support to pass IPA enabled(disabled) flag from ini to DP layer
- Use ioremap call to translate tx_comp_doorbell_paddr obtained from
calling ipa_setup api to tx_comp_doorbell_vaddr. This is needed to
write the initial value of HP at the doorbell address.
- Change REO_DST_RING_SIZE and WLAN_CFG_TX_RING_SIZE to 1023
for napier/hastings if IPA is enabled. This is needed because,
ipa_setup API can handle only 16-bit values for the size param(bytes)
of the ring.
- Disable hash based flow steering for SAP peers in case IPA is enabled
and set default reo_dest_ring_4 as default RX ring. Since IPA will be
reaping RX packets from reo_dest_ring_4 only, flow steering is not
needed for SAP peers.
- Unmap pre-allocated TX buffers for IPA in the TX completion ring.
- Donot execute IPA functionality if IPA is disabled from ini.
Change-Id: I6855bfe293a457ccc0abd1ad5567f5c95232a9d2
CRs-Fixed: 2183519
Datapath supposed to be HLOS-agnostic, but there is some use of
Linux fixed-width types u8, u16, and u32. These should be replaced with
C99 fixed-width types uint8_t, uint16_t, and uint32_t so that they will
correctly be HLOS-agnostic and work on non-Linux targets.
CRs-Fixed: 2326406
Change-Id: I8f9099a0170e4f94a54cdd6cc6c2e321a29af717
1. Disable host processing of REO2SW4 when IPA is enabled.
2. Change buffer memory location provide to IPA TX transfer
ring from consistent to non-consistent memory.
Change-Id: Ibb62d9faf5dc9adb5ee8a2e113d10a2912269cbd
CRs-Fixed: 2315889
Clean up datapath component prints by correcting trace levels for
regularly occurring prints and removing newlines from converged
print APIs since qdf_trace_msh appends them by default.
Change-Id: Ie8fe319fcb737720f7400a165e134b6a18bd15b5
CRs-Fixed: 2243843
macros and fw cmn headers included in hal_internal.h is moved
to a new hal_hw_headers.h to avoid these getting included in hif
layer. Include the new hal_hw_headers.h file
Change-Id: I3390ae9e71ca561d94a265e1fdf4d9354e7b2474
To abstract kernel header inclusion, create a new QDF APIs for all IPA
APIs and redirect all IPA API calls through QDF interfaces.
Change-Id: I7bff975ad7cb32fc128320c124633594471e0a1f
CRs-Fixed: 2098907
IPA Tx buffers are allocated using qdf_mem_alloc_consistent,
so free using qdf_mem_free_consistent.
Change-Id: I0125189e1eec2a45f06bc7c2662d65c8745b3d3e
CRs-Fixed: 2135803
