From 7472f4f281d0f7c9cf66494b70a64c5ea5ca67da Mon Sep 17 00:00:00 2001 From: Iordache Florinel-R70177 Date: Sun, 27 Aug 2017 16:13:38 +0300 Subject: fsl/fman: enable FMan Keygen Add support for the FMan Keygen with a hardcoded scheme to spread incoming traffic on a FQ range based on source and destination IPs and ports. Signed-off-by: Iordache Florinel Signed-off-by: Madalin Bucur Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fman/fman_port.c | 40 ++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet/freescale/fman/fman_port.c') diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c index d51e6aa2b356..f571b3c37f27 100644 --- a/drivers/net/ethernet/freescale/fman/fman_port.c +++ b/drivers/net/ethernet/freescale/fman/fman_port.c @@ -44,6 +44,7 @@ #include "fman.h" #include "fman_port.h" #include "fman_sp.h" +#include "fman_keygen.h" /* Queue ID */ #define DFLT_FQ_ID 0x00FFFFFF @@ -184,6 +185,7 @@ #define NIA_ENG_QMI_ENQ 0x00540000 #define NIA_ENG_QMI_DEQ 0x00580000 #define NIA_ENG_HWP 0x00440000 +#define NIA_ENG_HWK 0x00480000 #define NIA_BMI_AC_ENQ_FRAME 0x00000002 #define NIA_BMI_AC_TX_RELEASE 0x000002C0 #define NIA_BMI_AC_RELEASE 0x000000C0 @@ -394,6 +396,8 @@ struct fman_port_bpools { struct fman_port_cfg { u32 dflt_fqid; u32 err_fqid; + u32 pcd_base_fqid; + u32 pcd_fqs_count; u8 deq_sp; bool deq_high_priority; enum fman_port_deq_type deq_type; @@ -1271,6 +1275,10 @@ static void set_rx_dflt_cfg(struct fman_port *port, port_params->specific_params.rx_params.err_fqid; port->cfg->dflt_fqid = port_params->specific_params.rx_params.dflt_fqid; + port->cfg->pcd_base_fqid = + port_params->specific_params.rx_params.pcd_base_fqid; + port->cfg->pcd_fqs_count = + port_params->specific_params.rx_params.pcd_fqs_count; } static void set_tx_dflt_cfg(struct fman_port *port, @@ -1397,6 +1405,24 @@ err_port_cfg: } EXPORT_SYMBOL(fman_port_config); +/** + * fman_port_use_kg_hash + * port: A pointer to a FM Port module. + * Sets the HW KeyGen or the BMI as HW Parser next engine, enabling + * or bypassing the KeyGen hashing of Rx traffic + */ +void fman_port_use_kg_hash(struct fman_port *port, bool enable) +{ + if (enable) + /* After the Parser frames go to KeyGen */ + iowrite32be(NIA_ENG_HWK, &port->bmi_regs->rx.fmbm_rfpne); + else + /* After the Parser frames go to BMI */ + iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_ENQ_FRAME, + &port->bmi_regs->rx.fmbm_rfpne); +} +EXPORT_SYMBOL(fman_port_use_kg_hash); + /** * fman_port_init * port: A pointer to a FM Port module. @@ -1407,9 +1433,10 @@ EXPORT_SYMBOL(fman_port_config); */ int fman_port_init(struct fman_port *port) { + struct fman_port_init_params params; + struct fman_keygen *keygen; struct fman_port_cfg *cfg; int err; - struct fman_port_init_params params; if (is_init_done(port->cfg)) return -EINVAL; @@ -1472,6 +1499,17 @@ int fman_port_init(struct fman_port *port) if (err) return err; + if (port->cfg->pcd_fqs_count) { + keygen = port->dts_params.fman->keygen; + err = keygen_port_hashing_init(keygen, port->port_id, + port->cfg->pcd_base_fqid, + port->cfg->pcd_fqs_count); + if (err) + return err; + + fman_port_use_kg_hash(port, true); + } + kfree(port->cfg); port->cfg = NULL; -- cgit v1.2.3