[dpdk-dev] [PATCH v4 00/29] introduce I/O device memory read/write operations
Jerin Jacob
jerin.jacob at caviumnetworks.com
Tue Jan 17 08:13:35 CET 2017
v4:
1) Changed rte_[read/write]8/16/32/64_[relaxed] definition to inline function
from macros
2) net/bnxt: removed duplicate "*(volatile uint32_t *)bar = 0"
v3:
1) Changed I40E_PCI_REG_WRITE to I40E_PCI_REG_WRITE_RELAXED in fastpath
i40e_rx_alloc_bufs function(Tiwei)
2) Changed rte_?wb to rte_*wb in the git commit log of
"eal/arm64: change barrier definitions to macros"(Jianbo)
3) Re-based to latest dpdk master(Jan 12)
v2:
1) Changed rte_[read/write]b/w/l/q_[relaxed] to rte_[read/write]8/16/32/64_[relaxed](Yuanhan)
2) Changed rte_?mb to macros for arm64(Jianbo)
3) rte_wmb() followed by rte_write* changed to rte_wmb() followed by relaxed version(rte_write_relaxed)
in _fast_ path to avoid an extra memory barrier for arm64 in fast path(Jianbo)
3) Replaced virtio io_read*/io_write* with rte_read*/rte_write*(Yuanhan)
Based on the discussion in the below-mentioned thread,
http://dev.dpdk.narkive.com/DpIRqDuy/dpdk-dev-patch-v2-i40e-fix-eth-i40e-dev-init-sequence-on-thunderx
This patchset introduces 8-bit, 16-bit, 32bit, 64bit I/O device
memory read/write operations along with the relaxed versions.
The weakly-ordered machine like ARM needs additional I/O barrier for
device memory read/write access over PCI bus.
By introducing the EAL abstraction for I/O device memory read/write access,
The drivers can access I/O device memory in architecture-agnostic manner.
The relaxed version does not have additional I/O memory barrier, useful in
accessing the device registers of integrated controllers which
implicitly strongly ordered with respect to memory access.
This patch-set split into three functional set:
patch-set 1-9: Introduce I/O device memory barrier eal abstraction and
implement it for all the architectures.
patch-set 10-13: Introduce I/O device memory read/write operations Earl abstraction
and implement it for all the architectures using previous I/O device memory
barrier.
patchset 14-28: Replace the raw readl/writel in the drivers with
new rte_read[8/16/32/64], rte_write[8/16/32/64] eal abstraction
Note:
1) We couldn't test the patch on all the Hardwares due to unavailability.
Appreciate the feedback from ARCH and PMD maintainers.
2) patch 13/28 has false positive check patch error with ASM syntax
ERROR:BRACKET_SPACE: space prohibited before open square bracket '['
#92: FILE: lib/librte_eal/common/include/arch/arm/rte_io_64.h:54:
+ : [val] "=r" (val)
Jerin Jacob (15):
eal: introduce I/O device memory barriers
eal/x86: define I/O device memory barriers for IA
eal/tile: define I/O device memory barriers for tile
eal/ppc64: define I/O device memory barriers for ppc64
eal/arm: separate smp barrier definition for ARMv7 and ARMv8
eal/armv7: define I/O device memory barriers for ARMv7
eal/arm64: fix memory barrier definition for arm64
eal/arm64: define smp barrier definition for arm64
eal/arm64: define I/O device memory barriers for arm64
eal: introduce I/O device memory read/write operations
eal: generic implementation for I/O device read/write access
eal: let all architectures use generic I/O implementation
eal/arm64: override I/O device read/write access for arm64
eal/arm64: change barrier definitions to macros
net/thunderx: use eal I/O device memory read/write API
Santosh Shukla (14):
crypto/qat: use eal I/O device memory read/write API
net/bnxt: use eal I/O device memory read/write API
net/bnx2x: use eal I/O device memory read/write API
net/cxgbe: use eal I/O device memory read/write API
net/e1000: use eal I/O device memory read/write API
net/ena: use eal I/O device memory read/write API
net/enic: use eal I/O device memory read/write API
net/fm10k: use eal I/O device memory read/write API
net/i40e: use eal I/O device memory read/write API
net/ixgbe: use eal I/O device memory read/write API
net/nfp: use eal I/O device memory read/write API
net/qede: use eal I/O device memory read/write API
net/virtio: use eal I/O device memory read/write API
net/vmxnet3: use eal I/O device memory read/write API
doc/api/doxy-api-index.md | 3 +-
.../qat/qat_adf/adf_transport_access_macros.h | 11 +-
drivers/net/bnx2x/bnx2x.h | 26 +-
drivers/net/bnxt/bnxt_cpr.h | 13 +-
drivers/net/bnxt/bnxt_hwrm.c | 8 +-
drivers/net/bnxt/bnxt_txr.h | 6 +-
drivers/net/cxgbe/base/adapter.h | 34 +-
drivers/net/cxgbe/cxgbe_compat.h | 8 +-
drivers/net/cxgbe/sge.c | 10 +-
drivers/net/e1000/base/e1000_osdep.h | 18 +-
drivers/net/e1000/em_rxtx.c | 2 +-
drivers/net/e1000/igb_rxtx.c | 2 +-
drivers/net/ena/base/ena_eth_com.h | 2 +-
drivers/net/ena/base/ena_plat_dpdk.h | 11 +-
drivers/net/enic/enic_compat.h | 27 +-
drivers/net/enic/enic_rxtx.c | 9 +-
drivers/net/fm10k/base/fm10k_osdep.h | 17 +-
drivers/net/i40e/base/i40e_osdep.h | 10 +-
drivers/net/i40e/i40e_rxtx.c | 6 +-
drivers/net/ixgbe/base/ixgbe_osdep.h | 11 +-
drivers/net/ixgbe/ixgbe_rxtx.c | 13 +-
drivers/net/nfp/nfp_net_pmd.h | 9 +-
drivers/net/qede/base/bcm_osal.h | 20 +-
drivers/net/qede/base/ecore_int_api.h | 28 +-
drivers/net/qede/base/ecore_spq.c | 3 +-
drivers/net/qede/qede_rxtx.c | 2 +-
drivers/net/thunderx/base/nicvf_plat.h | 36 +-
drivers/net/virtio/virtio_pci.c | 97 ++----
drivers/net/vmxnet3/vmxnet3_ethdev.h | 8 +-
lib/librte_eal/common/Makefile | 3 +-
.../common/include/arch/arm/rte_atomic.h | 6 -
.../common/include/arch/arm/rte_atomic_32.h | 12 +
.../common/include/arch/arm/rte_atomic_64.h | 57 ++-
lib/librte_eal/common/include/arch/arm/rte_io.h | 51 +++
lib/librte_eal/common/include/arch/arm/rte_io_64.h | 199 +++++++++++
.../common/include/arch/ppc_64/rte_atomic.h | 6 +
lib/librte_eal/common/include/arch/ppc_64/rte_io.h | 47 +++
.../common/include/arch/tile/rte_atomic.h | 6 +
lib/librte_eal/common/include/arch/tile/rte_io.h | 47 +++
.../common/include/arch/x86/rte_atomic.h | 6 +
lib/librte_eal/common/include/arch/x86/rte_io.h | 47 +++
lib/librte_eal/common/include/generic/rte_atomic.h | 27 ++
lib/librte_eal/common/include/generic/rte_io.h | 381 +++++++++++++++++++++
43 files changed, 1085 insertions(+), 260 deletions(-)
create mode 100644 lib/librte_eal/common/include/arch/arm/rte_io.h
create mode 100644 lib/librte_eal/common/include/arch/arm/rte_io_64.h
create mode 100644 lib/librte_eal/common/include/arch/ppc_64/rte_io.h
create mode 100644 lib/librte_eal/common/include/arch/tile/rte_io.h
create mode 100644 lib/librte_eal/common/include/arch/x86/rte_io.h
create mode 100644 lib/librte_eal/common/include/generic/rte_io.h
--
2.5.5
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