[PATCH V2 net-next] net: mvpp2: Add parsing support for different IPv4 IHL values

From: Stefan Chulski Add parser entries for different IPv4 IHL values. Each entry will set the L4 header offset according to the IPv4 IHL field. L3 header offset will set during the parsing of the IPv4 protocol. Because of missed parser support for IP header length > 20, RX IPv4 checksum HW

[PATCH net-next] net: mvpp2: Add parsing support for different IPv4 IHL values

From: Stefan Chulski Add parser entries for different IPv4 IHL values. Each entry will set the L4 header offset according to the IPv4 IHL field. L3 header offset will set during the parsing of the IPv4 protocol. Suggested-by: Dana Vardi Signed-off-by: Stefan Chulski ---

[V2 net-next] net: mvpp2: Add reserved port private flag configuration

From: Stefan Chulski According to Armada SoC architecture and design, all the PPv2 ports which are populated on the same communication processor silicon die (CP11x) share the same Classifier and Parser engines. Armada is an embedded platform and therefore there is a need to reserve some of the

[net-next] net: mvpp2: Add reserved port private flag configuration

From: Stefan Chulski According to Armada SoC architecture and design, all the PPv2 ports which are populated on the same communication processor silicon die (CP11x) share the same Classifier and Parser engines. Armada is an embedded platform and therefore there is a need to reserve some of the

[net-next] net: mvpp2: skip RSS configurations on loopback port

From: Stefan Chulski PPv2 loopback port doesn't support RSS, so we should skip RSS configurations for this port. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 25 +++- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git

[net-next] net: mvpp2: Add TX flow control support for jumbo frames

From: Stefan Chulski With MTU less than 1500B on all ports, the driver uses per CPU pool mode. If one of the ports set to jumbo frame MTU size, all ports move to shared pools mode. Here, buffer manager TX Flow Control reconfigured on all ports. Signed-off-by: Stefan Chulski ---

[net-next] net: mvpp2: reduce tx-fifo for loopback port

From: Stefan Chulski 1KB is enough for loopback port, so 2KB can be distributed between other ports. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 4 ++-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 10 +- 2 files changed, 7 insertions(+),

[net-next 2/4] net: mvpp2: improve Packet Processor version check

From: Stefan Chulski Use >= MVPP22 instead of != MVPP21. Non functional change. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 36 ++-- 1 file changed, 18 insertions(+), 18 deletions(-) diff --git

[net-next 3/4] net: mvpp2: improve mvpp2_get_sram return

From: Stefan Chulski Use PTR_ERR_OR_ZERO instead of IS_ERR and PTR_ERR. Non functional change. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git

[net-next 4/4] net: mvpp2: improve Networking Complex Control register naming

From: Stefan Chulski GENCONF_CTRL0_PORTX naming improved. Non functional change. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 6 +++--- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 8 2 files changed, 7 insertions(+), 7 deletions(-) diff

[net-next 1/4] net: mvpp2: simplify PPv2 version ID read

From: Stefan Chulski PPv2.1 contain 0 in Version ID register, priv->hw_version check can be removed. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git

[net-next 0/4] net: mvpp2: Minor non functional driver code improvements

From: Stefan Chulski The patch series contains minor code improvements and did not change any functionality. Stefan Chulski (4): net: mvpp2: simplify PPv2 version ID read net: mvpp2: improve Packet Processor version check net: mvpp2: improve mvpp2_get_sram return net: mvpp2: improve

[net-next] net: mvpp2: fix interrupt mask/unmask skip condition

From: Stefan Chulski The condition should be skipped if CPU ID equal to nthreads. The patch doesn't fix any actual issue since nthreads = min_t(unsigned int, num_present_cpus(), MVPP2_MAX_THREADS). On all current Armada platforms, the number of CPU's is less than MVPP2_MAX_THREADS. Fixes:

[PATCH v13 net-next 04/15] net: mvpp2: always compare hw-version vs MVPP21

From: Stefan Chulski Currently we have PP2v1 and PP2v2 hw-versions, with some different handlers depending upon condition hw_version = MVPP21/MVPP22. In a future there will be also PP2v3. Let's use now the generic "if equal/notEqual MVPP21" for all cases instead of "if MVPP22". This patch does

[PATCH v13 net-next 13/15] net: mvpp2: add PPv23 RX FIFO flow control

From: Stefan Chulski New FIFO flow control feature was added in PPv23. PPv2 FIFO polled by HW and trigger pause frame if FIFO fill level is below threshold. FIFO HW flow control enabled with CM3 RXQ flow control with ethtool. Current FIFO thresholds is: 9KB for port with maximum speed 10Gb/s

[PATCH v13 net-next 10/15] net: mvpp2: add RXQ flow control configurations

From: Stefan Chulski This patch adds RXQ flow control configurations. Flow control disabled by default. Minimum ring size limited to 1024 descriptors. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-

[PATCH v13 net-next 12/15] net: mvpp2: add BM protection underrun feature support

From: Stefan Chulski The PP2v23 hardware supports a feature allowing to double the size of BPPI by decreasing number of pools from 16 to 8. Increasing of BPPI size protect BM drop from BPPI underrun. Underrun could occurred due to stress on DDR and as result slow buffer transition from BPPE to

[PATCH v13 net-next 15/15] net: mvpp2: add TX FC firmware check

From: Stefan Chulski Patch check that TX FC firmware is running in CM3. If not, global TX FC would be disabled. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 39

[PATCH v13 net-next 14/15] net: mvpp2: set 802.3x GoP Flow Control mode

From: Stefan Chulski This patch fix GMAC TX flow control autoneg. Flow control autoneg wrongly were disabled with enabled TX flow control. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- 1 file changed, 1 insertion(+), 1

[PATCH v13 net-next 11/15] net: mvpp2: add ethtool flow control configuration support

From: Stefan Chulski This patch add ethtool flow control configuration support. Tx flow control retrieved correctly by ethtool get function. FW per port ethtool configuration capability added. Patch also takes care about mtu change procedure, if PPv2 switch BM pools during mtu change.

[PATCH v13 net-next 09/15] net: mvpp2: enable global flow control

From: Stefan Chulski This patch enables global flow control in FW and in the phylink validate mask. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 11 +-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 30

[PATCH v13 net-next 08/15] net: mvpp2: add FCA RXQ non occupied descriptor threshold

From: Stefan Chulski The firmware needs to monitor the RX Non-occupied descriptor bits for flow control to move to XOFF mode. These bits need to be unmasked to be functional, but they will not raise interrupts as we leave the RX exception summary bit in MVPP2_ISR_RX_TX_MASK_REG clear.

[PATCH v13 net-next 07/15] net: mvpp2: add FCA periodic timer configurations

From: Stefan Chulski Flow Control periodic timer would be used if port in XOFF to transmit periodic XOFF frames. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 13 ++ drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 45

[PATCH v13 net-next 06/15] net: mvpp2: increase BM pool and RXQ size

From: Stefan Chulski BM pool and RXQ size increased to support Firmware Flow Control. Minimum depletion thresholds to support FC are 1024 buffers. BM pool size increased to 2048 to have some 1024 buffers space between depletion thresholds and BM pool size. Jumbo frames require a 9888B buffer,

[PATCH v13 net-next 05/15] net: mvpp2: add PPv23 version definition

From: Stefan Chulski This patch add PPv23 version definition. PPv23 is new packet processor in CP115. Everything that supported by PPv22, also supported by PPv23. No functional changes in this stage. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas ---

[PATCH v13 net-next 03/15] net: mvpp2: add CM3 SRAM memory map

From: Stefan Chulski This patch adds CM3 memory map. Signed-off-by: Stefan Chulski Reviewed-by: Andrew Lunn Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 26 2 files changed, 27

[PATCH v13 net-next 02/15] dts: marvell: add CM3 SRAM memory to cp11x ethernet device tree

From: Konstantin Porotchkin CM3 SRAM address space will be used for Flow Control configuration. Signed-off-by: Stefan Chulski Signed-off-by: Konstantin Porotchkin Acked-by: Marcin Wojtas Acked-by: Rob Herring --- arch/arm64/boot/dts/marvell/armada-cp11x.dtsi | 2 +- 1 file changed, 1

[PATCH v13 net-next 01/15] doc: marvell: add CM3 address space and PPv2.3 description

From: Stefan Chulski Patch adds CM3 address space and PPv2.3 description. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- Documentation/devicetree/bindings/net/marvell-pp2.txt | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git

[PATCH v13 net-next 00/15] net: mvpp2: Add TX Flow Control support

From: Stefan Chulski Armada hardware has a pause generation mechanism in GOP (MAC). The GOP generate flow control frames based on an indication programmed in Ports Control 0 Register. There is a bit per port. However assertion of the PortX Pause bits in the ports control 0 register only sends

[net-next] net: mvpp2: add an entry to skip parser

From: Stefan Chulski This entry used when skipping the parser needed, for example, the custom header pretended to ethernet header. Suggested-by: Liron Himi Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c | 15 +++

[PATCH v12 net-next 15/15] net: mvpp2: add TX FC firmware check

From: Stefan Chulski Patch check that TX FC firmware is running in CM3. If not, global TX FC would be disabled. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 39

[PATCH v12 net-next 14/15] net: mvpp2: set 802.3x GoP Flow Control mode

From: Stefan Chulski This patch fix GMAC TX flow control autoneg. Flow control autoneg wrongly were disabled with enabled TX flow control. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- 1 file changed, 1 insertion(+), 1

[PATCH v12 net-next 12/15] net: mvpp2: add BM protection underrun feature support

From: Stefan Chulski The PP2v23 hardware supports a feature allowing to double the size of BPPI by decreasing number of pools from 16 to 8. Increasing of BPPI size protect BM drop from BPPI underrun. Underrun could occurred due to stress on DDR and as result slow buffer transition from BPPE to

[PATCH v12 net-next 13/15] net: mvpp2: add PPv23 RX FIFO flow control

From: Stefan Chulski New FIFO flow control feature was added in PPv23. PPv2 FIFO polled by HW and trigger pause frame if FIFO fill level is below threshold. FIFO HW flow control enabled with CM3 RXQ flow control with ethtool. Current FIFO thresholds is: 9KB for port with maximum speed 10Gb/s

[PATCH v12 net-next 11/15] net: mvpp2: add ethtool flow control configuration support

From: Stefan Chulski This patch add ethtool flow control configuration support. Tx flow control retrieved correctly by ethtool get function. FW per port ethtool configuration capability added. Patch also takes care about mtu change procedure, if PPv2 switch BM pools during mtu change.

[PATCH v12 net-next 10/15] net: mvpp2: add RXQ flow control configurations

From: Stefan Chulski This patch adds RXQ flow control configurations. Flow control disabled by default. Minimum ring size limited to 1024 descriptors. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-

[PATCH v12 net-next 09/15] net: mvpp2: enable global flow control

From: Stefan Chulski This patch enables global flow control in FW and in the phylink validate mask. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 11 +-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 30

[PATCH v12 net-next 07/15] net: mvpp2: add FCA periodic timer configurations

From: Stefan Chulski Flow Control periodic timer would be used if port in XOFF to transmit periodic XOFF frames. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 13 ++ drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 45

[PATCH v12 net-next 08/15] net: mvpp2: add FCA RXQ non occupied descriptor threshold

From: Stefan Chulski The firmware needs to monitor the RX Non-occupied descriptor bits for flow control to move to XOFF mode. These bits need to be unmasked to be functional, but they will not raise interrupts as we leave the RX exception summary bit in MVPP2_ISR_RX_TX_MASK_REG clear.

[PATCH v12 net-next 06/15] net: mvpp2: increase BM pool and RXQ size

From: Stefan Chulski BM pool and RXQ size increased to support Firmware Flow Control. Minimum depletion thresholds to support FC are 1024 buffers. BM pool size increased to 2048 to have some 1024 buffers space between depletion thresholds and BM pool size. Jumbo frames require a 9888B buffer,

[PATCH v12 net-next 05/15] net: mvpp2: add PPv23 version definition

From: Stefan Chulski This patch add PPv23 version definition. PPv23 is new packet processor in CP115. Everything that supported by PPv22, also supported by PPv23. No functional changes in this stage. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas ---

[PATCH v12 net-next 04/15] net: mvpp2: always compare hw-version vs MVPP21

From: Stefan Chulski Currently we have PP2v1 and PP2v2 hw-versions, with some different handlers depending upon condition hw_version = MVPP21/MVPP22. In a future there will be also PP2v3. Let's use now the generic "if equal/notEqual MVPP21" for all cases instead of "if MVPP22". This patch does

[PATCH v12 net-next 03/15] net: mvpp2: add CM3 SRAM memory map

From: Stefan Chulski This patch adds CM3 memory map. Signed-off-by: Stefan Chulski Reviewed-by: Andrew Lunn Acked-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 26 2 files changed, 27

[PATCH v12 net-next 02/15] dts: marvell: add CM3 SRAM memory to cp11x ethernet device tree

From: Konstantin Porotchkin CM3 SRAM address space will be used for Flow Control configuration. Signed-off-by: Stefan Chulski Signed-off-by: Konstantin Porotchkin Acked-by: Marcin Wojtas --- arch/arm64/boot/dts/marvell/armada-cp11x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

[PATCH v12 net-next 01/15] doc: marvell: add CM3 address space and PPv2.3 description

From: Stefan Chulski Patch adds CM3 address space and PPv2.3 description. Signed-off-by: Stefan Chulski Acked-by: Marcin Wojtas --- Documentation/devicetree/bindings/net/marvell-pp2.txt | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git

[PATCH v12 net-next 00/15] net: mvpp2: Add TX Flow Control support

From: Stefan Chulski Armada hardware has a pause generation mechanism in GOP (MAC). The GOP generate flow control frames based on an indication programmed in Ports Control 0 Register. There is a bit per port. However assertion of the PortX Pause bits in the ports control 0 register only sends

[PATCH v11 net-next 15/15] net: mvpp2: add TX FC firmware check

From: Stefan Chulski Patch check that TX FC firmware is running in CM3. If not, global TX FC would be disabled. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 42 2 files changed,

[PATCH v11 net-next 14/15] net: mvpp2: set 802.3x GoP Flow Control mode

From: Stefan Chulski This patch fix GMAC TX flow control autoneg. Flow control autoneg wrongly were disabled with enabled TX flow control. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v11 net-next 13/15] net: mvpp2: add PPv23 RX FIFO flow control

From: Stefan Chulski New FIFO flow control feature was added in PPv23. PPv2 FIFO polled by HW and trigger pause frame if FIFO fill level is below threshold. FIFO HW flow control enabled with CM3 RXQ flow control with ethtool. Current FIFO thresholds is: 9KB for port with maximum speed 10Gb/s

[PATCH v11 net-next 12/15] net: mvpp2: add BM protection underrun feature support

From: Stefan Chulski The PP2v23 hardware supports a feature allowing to double the size of BPPI by decreasing number of pools from 16 to 8. Increasing of BPPI size protect BM drop from BPPI underrun. Underrun could occurred due to stress on DDR and as result slow buffer transition from BPPE to

[PATCH v11 net-next 11/15] net: mvpp2: add ethtool flow control configuration support

From: Stefan Chulski This patch add ethtool flow control configuration support. Tx flow control retrieved correctly by ethtool get function. FW per port ethtool configuration capability added. Patch also takes care about mtu change procedure, if PPv2 switch BM pools during mtu change.

[PATCH v11 net-next 10/15] net: mvpp2: add RXQ flow control configurations

From: Stefan Chulski This patch adds RXQ flow control configurations. Flow control disabled by default. Minimum ring size limited to 1024 descriptors. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-

[PATCH v11 net-next 09/15] net: mvpp2: enable global flow control

From: Stefan Chulski This patch enables global flow control in FW and in the phylink validate mask. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 11 +-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 30 +++- 2 files changed, 37

[PATCH v11 net-next 08/15] net: mvpp2: add FCA RXQ non occupied descriptor threshold

From: Stefan Chulski The firmware needs to monitor the RX Non-occupied descriptor bits for flow control to move to XOFF mode. These bits need to be unmasked to be functional, but they will not raise interrupts as we leave the RX exception summary bit in MVPP2_ISR_RX_TX_MASK_REG clear.

[PATCH v11 net-next 07/15] net: mvpp2: add FCA periodic timer configurations

From: Stefan Chulski Flow Control periodic timer would be used if port in XOFF to transmit periodic XOFF frames. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 13 ++ drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 45 2 files

[PATCH v11 net-next 06/15] net: mvpp2: increase BM pool and RXQ size

From: Stefan Chulski BM pool and RXQ size increased to support Firmware Flow Control. Minimum depletion thresholds to support FC are 1024 buffers. BM pool size increased to 2048 to have some 1024 buffers space between depletion thresholds and BM pool size. Jumbo frames require a 9888B buffer,

[PATCH v11 net-next 05/15] net: mvpp2: add PPv23 version definition

From: Stefan Chulski This patch add PPv23 version definition. PPv23 is new packet processor in CP115. Everything that supported by PPv22, also supported by PPv23. No functional changes in this stage. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 24

[PATCH v11 net-next 04/15] net: mvpp2: always compare hw-version vs MVPP21

From: Stefan Chulski Currently we have PP2v1 and PP2v2 hw-versions, with some different handlers depending upon condition hw_version = MVPP21/MVPP22. In a future there will be also PP2v3. Let's use now the generic "if equal/notEqual MVPP21" for all cases instead of "if MVPP22". This patch does

[PATCH v11 net-next 03/15] net: mvpp2: add CM3 SRAM memory map

From: Stefan Chulski This patch adds CM3 memory map. Signed-off-by: Stefan Chulski Reviewed-by: Andrew Lunn --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 26 2 files changed, 27 insertions(+) diff --git

[PATCH v11 net-next 02/15] dts: marvell: add CM3 SRAM memory to cp11x ethernet device tree

From: Konstantin Porotchkin CM3 SRAM address space would be used for Flow Control configuration. Signed-off-by: Stefan Chulski Signed-off-by: Konstantin Porotchkin --- arch/arm64/boot/dts/marvell/armada-cp11x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v11 net-next 01/15] doc: marvell: add CM3 address space and PPv2.3 description

From: Stefan Chulski Patch adds CM3 address space and PPv2.3 description. Signed-off-by: Stefan Chulski --- Documentation/devicetree/bindings/net/marvell-pp2.txt | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/net/marvell-pp2.txt

[PATCH v11 net-next 00/15] net: mvpp2: Add TX Flow Control support

From: Stefan Chulski Armada hardware has a pause generation mechanism in GOP (MAC). The GOP generate flow control frames based on an indication programmed in Ports Control 0 Register. There is a bit per port. However assertion of the PortX Pause bits in the ports control 0 register only sends

[PATCH v10 net-next 11/15] net: mvpp2: add ethtool flow control configuration support

From: Stefan Chulski This patch add ethtool flow control configuration support. Tx flow control retrieved correctly by ethtool get function. FW per port ethtool configuration capability added. Patch also takes care about mtu change procedure, if PPv2 switch BM pools during mtu change.

[PATCH v10 net-next 14/15] net: mvpp2: set 802.3x GoP Flow Control mode

From: Stefan Chulski This patch fix GMAC TX flow control autoneg. Flow control autoneg wrongly were disabled with enabled TX flow control. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v10 net-next 12/15] net: mvpp2: add BM protection underrun feature support

From: Stefan Chulski The PP2v23 hardware supports a feature allowing to double the size of BPPI by decreasing number of pools from 16 to 8. Increasing of BPPI size protect BM drop from BPPI underrun. Underrun could occurred due to stress on DDR and as result slow buffer transition from BPPE to

[PATCH v10 net-next 15/15] net: mvpp2: add TX FC firmware check

From: Stefan Chulski Patch check that TX FC firmware is running in CM3. If not, global TX FC would be disabled. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 42 2 files changed,

[PATCH v10 net-next 13/15] net: mvpp2: add PPv23 RX FIFO flow control

From: Stefan Chulski New FIFO flow control feature was added in PPv23. PPv2 FIFO polled by HW and trigger pause frame if FIFO fill level is below threshold. FIFO HW flow control enabled with CM3 RXQ flow control with ethtool. Current FIFO thresholds is: 9KB for port with maximum speed 10Gb/s

[PATCH v10 net-next 10/15] net: mvpp2: add RXQ flow control configurations

From: Stefan Chulski This patch adds RXQ flow control configurations. Flow control disabled by default. Minimum ring size limited to 1024 descriptors. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-

[PATCH v10 net-next 09/15] net: mvpp2: enable global flow control

From: Stefan Chulski This patch enables global flow control in FW and in the phylink validate mask. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 11 +-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 30 +++- 2 files changed, 37

[PATCH v10 net-next 07/15] net: mvpp2: add FCA periodic timer configurations

From: Stefan Chulski Flow Control periodic timer would be used if port in XOFF to transmit periodic XOFF frames. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 13 ++ drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 45 2 files

[PATCH v10 net-next 08/15] net: mvpp2: add FCA RXQ non occupied descriptor threshold

From: Stefan Chulski The firmware needs to monitor the RX Non-occupied descriptor bits for flow control to move to XOFF mode. These bits need to be unmasked to be functional, but they will not raise interrupts as we leave the RX exception summary bit in MVPP2_ISR_RX_TX_MASK_REG clear.

[PATCH v10 net-next 06/15] net: mvpp2: increase BM pool and RXQ size

From: Stefan Chulski BM pool and RXQ size increased to support Firmware Flow Control. Minimum depletion thresholds to support FC are 1024 buffers. BM pool size increased to 2048 to have some 1024 buffers space between depletion thresholds and BM pool size. Jumbo frames require a 9888B buffer,

[PATCH v10 net-next 04/15] net: mvpp2: always compare hw-version vs MVPP21

From: Stefan Chulski Currently we have PP2v1 and PP2v2 hw-versions, with some different handlers depending upon condition hw_version = MVPP21/MVPP22. In a future there will be also PP2v3. Let's use now the generic "if equal/notEqual MVPP21" for all cases instead of "if MVPP22". This patch does

[PATCH v10 net-next 05/15] net: mvpp2: add PPv23 version definition

From: Stefan Chulski This patch add PPv23 version definition. PPv23 is new packet processor in CP115. Everything that supported by PPv22, also supported by PPv23. No functional changes in this stage. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 24

[PATCH v10 net-next 02/15] dts: marvell: add CM3 SRAM memory to cp11x ethernet device tree

From: Konstantin Porotchkin CM3 SRAM address space would be used for Flow Control configuration. Signed-off-by: Stefan Chulski Signed-off-by: Konstantin Porotchkin --- arch/arm64/boot/dts/marvell/armada-cp11x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v10 net-next 03/15] net: mvpp2: add CM3 SRAM memory map

From: Stefan Chulski This patch adds CM3 memory map and CM3 read/write callbacks. Signed-off-by: Stefan Chulski Reviewed-by: Andrew Lunn --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 26 2 files changed, 27

[PATCH v10 net-next 01/15] doc: marvell: add CM3 address space and PPv2.3 description

From: Stefan Chulski Patch adds CM3 address space and PPv2.3 description. Signed-off-by: Stefan Chulski --- Documentation/devicetree/bindings/net/marvell-pp2.txt | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/net/marvell-pp2.txt

[PATCH v10 net-next 00/15] net: mvpp2: Add TX Flow Control support

From: Stefan Chulski Armada hardware has a pause generation mechanism in GOP (MAC). The GOP generate flow control frames based on an indication programmed in Ports Control 0 Register. There is a bit per port. However assertion of the PortX Pause bits in the ports control 0 register only sends

[PATCH v9 net-next 15/15] net: mvpp2: add TX FC firmware check

From: Stefan Chulski Patch check that TX FC firmware is running in CM3. If not, global TX FC would be disabled. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 42 2 files changed,

[PATCH v9 net-next 05/15] net: mvpp2: add PPv23 version definition

From: Stefan Chulski This patch add PPv23 version definition. PPv23 is new packet processor in CP115. Everything that supported by PPv22, also supported by PPv23. No functional changes in this stage. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 24

[PATCH v9 net-next 14/15] net: mvpp2: set 802.3x GoP Flow Control mode

From: Stefan Chulski This patch fix GMAC TX flow control autoneg. Flow control autoneg wrongly were disabled with enabled TX flow control. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v9 net-next 11/15] net: mvpp2: add ethtool flow control configuration support

From: Stefan Chulski This patch add ethtool flow control configuration support. Tx flow control retrieved correctly by ethtool get function. FW per port ethtool configuration capability added. Patch also takes care about mtu change procedure, if PPv2 switch BM pools during mtu change.

[PATCH v9 net-next 08/15] net: mvpp2: add FCA RXQ non occupied descriptor threshold

From: Stefan Chulski The firmware needs to monitor the RX Non-occupied descriptor bits for flow control to move to XOFF mode. These bits need to be unmasked to be functional, but they will not raise interrupts as we leave the RX exception summary bit in MVPP2_ISR_RX_TX_MASK_REG clear.

[PATCH v9 net-next 13/15] net: mvpp2: add PPv23 RX FIFO flow control

From: Stefan Chulski New FIFO flow control feature was added in PPv23. PPv2 FIFO polled by HW and trigger pause frame if FIFO fill level is below threshold. FIFO HW flow control enabled with CM3 RXQ flow control with ethtool. Current FIFO thresholds is: 9KB for port with maximum speed 10Gb/s

[PATCH v9 net-next 06/15] net: mvpp2: increase BM pool and RXQ size

From: Stefan Chulski BM pool and RXQ size increased to support Firmware Flow Control. Minimum depletion thresholds to support FC are 1024 buffers. BM pool size increased to 2048 to have some 1024 buffers space between depletion thresholds and BM pool size. Jumbo frames require a 9888B buffer,

[PATCH v9 net-next 12/15] net: mvpp2: add BM protection underrun feature support

From: Stefan Chulski The PP2v23 hardware supports a feature allowing to double the size of BPPI by decreasing number of pools from 16 to 8. Increasing of BPPI size protect BM drop from BPPI underrun. Underrun could occurred due to stress on DDR and as result slow buffer transition from BPPE to

[PATCH v9 net-next 10/15] net: mvpp2: add RXQ flow control configurations

From: Stefan Chulski This patch adds RXQ flow control configurations. Flow control disabled by default. Minimum ring size limited to 1024 descriptors. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-

[PATCH v9 net-next 09/15] net: mvpp2: enable global flow control

From: Stefan Chulski This patch enables global flow control in FW and in the phylink validate mask. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 11 +-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 30 +++- 2 files changed, 37

[PATCH v9 net-next 07/15] net: mvpp2: add FCA periodic timer configurations

From: Stefan Chulski Flow Control periodic timer would be used if port in XOFF to transmit periodic XOFF frames. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 13 ++ drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 45 2 files

[PATCH v9 net-next 04/15] net: mvpp2: always compare hw-version vs MVPP21

From: Stefan Chulski Currently we have PP2v1 and PP2v2 hw-versions, with some different handlers depending upon condition hw_version = MVPP21/MVPP22. In a future there will be also PP2v3. Let's use now the generic "if equal/notEqual MVPP21" for all cases instead of "if MVPP22". This patch does

[PATCH v9 net-next 03/15] net: mvpp2: add CM3 SRAM memory map

From: Stefan Chulski This patch adds CM3 memory map and CM3 read/write callbacks. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 26 2 files changed, 27 insertions(+) diff --git

[PATCH v9 net-next 02/15] dts: marvell: add CM3 SRAM memory to cp11x ethernet device tree

From: Konstantin Porotchkin CM3 SRAM address space would be used for Flow Control configuration. Signed-off-by: Stefan Chulski Signed-off-by: Konstantin Porotchkin --- arch/arm64/boot/dts/marvell/armada-cp11x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v9 net-next 01/15] doc: marvell: add CM3 address space and PPv2.3 description

From: Stefan Chulski Patch adds CM3 address space PPv2.3 description. Signed-off-by: Stefan Chulski --- Documentation/devicetree/bindings/net/marvell-pp2.txt | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/net/marvell-pp2.txt

[PATCH v9 net-next 00/15] net: mvpp2: Add TX Flow Control support

From: Stefan Chulski Armada hardware has a pause generation mechanism in GOP (MAC). The GOP generate flow control frames based on an indication programmed in Ports Control 0 Register. There is a bit per port. However assertion of the PortX Pause bits in the ports control 0 register only sends

[RESEND PATCH v8 net-next 15/15] net: mvpp2: add TX FC firmware check

From: Stefan Chulski Patch check that TX FC firmware is running in CM3. If not, global TX FC would be disabled. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 1 + drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 42 2 files changed,

[RESEND PATCH v8 net-next 14/15] net: mvpp2: set 802.3x GoP Flow Control mode

From: Stefan Chulski This patch fix GMAC TX flow control autoneg. Flow control autoneg wrongly were disabled with enabled TX flow control. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[RESEND PATCH v8 net-next 13/15] net: mvpp2: add PPv23 RX FIFO flow control

From: Stefan Chulski New FIFO flow control feature was added in PPv23. PPv2 FIFO polled by HW and trigger pause frame if FIFO fill level is below threshold. FIFO HW flow control enabled with CM3 RXQ flow control with ethtool. Current FIFO thresholds is: 9KB for port with maximum speed 10Gb/s

[RESEND PATCH v8 net-next 12/15] net: mvpp2: add BM protection underrun feature support

From: Stefan Chulski The PP2v23 hardware supports a feature allowing to double the size of BPPI by decreasing number of pools from 16 to 8. Increasing of BPPI size protect BM drop from BPPI underrun. Underrun could occurred due to stress on DDR and as result slow buffer transition from BPPE to

[RESEND PATCH v8 net-next 11/15] net: mvpp2: add ethtool flow control configuration support

From: Stefan Chulski This patch add ethtool flow control configuration support. Tx flow control retrieved correctly by ethtool get function. FW per port ethtool configuration capability added. Patch also takes care about mtu change procedure, if PPv2 switch BM pools during mtu change.

[RESEND PATCH v8 net-next 10/15] net: mvpp2: add RXQ flow control configurations

From: Stefan Chulski This patch adds RXQ flow control configurations. Flow control disabled by default. Minimum ring size limited to 1024 descriptors. Signed-off-by: Stefan Chulski --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-

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