net/sfc: support DPDK firmware variant

DPDK firmware variant supports equal stride super-buffer Rx mode which
provides higher packet rate and packet marks but requires dedicated
mempool manager with contiguous object block allocation (e.g. bucket).

Also the firmware supports subvariant without checksumming on Tx which
allows to reach higher packet rates on transmit if checksumming is not
required.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ivan Malov <ivan.malov@oktetlabs.ru>

diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 66daa1d36ac495966febc39564d32775bb86fe0b..693aa55855ea622a545941717bad373caad1f4e0 100644 (file)
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -354,7 +354,7 @@ boolean parameters value.
   value will select a fixed update period of **1000** milliseconds
 
 - ``fw_variant`` [dont-care|full-feature|ultra-low-latency|
-  capture-packed-stream] (default **dont-care**)
+  capture-packed-stream|dpdk] (default **dont-care**)
 
   Choose the preferred firmware variant to use. In order for the selected
   option to have an effect, the **sfboot** utility must be configured with the
@@ -367,6 +367,10 @@ boolean parameters value.
   **ultra-low-latency** chooses firmware with fewer features but lower latency.
   **capture-packed-stream** chooses firmware for SolarCapture packed stream
   mode.
+  **dpdk** chooses DPDK firmware with equal stride super-buffer Rx mode
+  for higher Rx packet rate and packet marks support and firmware subvariant
+  without checksumming on transmit for higher Tx packet rate if
+  checksumming is not required.
 
 
 Dynamic Logging Parameters

diff --git a/drivers/net/sfc/sfc.c b/drivers/net/sfc/sfc.c
index 37248bccc85a24632d3e48a195b0826a43a65fba..fd672265cef5eefa6a7a31b45cb810738a9cdd5d 100644 (file)
--- a/drivers/net/sfc/sfc.c
+++ b/drivers/net/sfc/sfc.c
@@ -829,6 +829,8 @@ sfc_kvarg_fv_variant_handler(__rte_unused const char *key,
                *value = EFX_FW_VARIANT_LOW_LATENCY;
        else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_PACKED_STREAM) == 0)
                *value = EFX_FW_VARIANT_PACKED_STREAM;
+       else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_DPDK) == 0)
+               *value = EFX_FW_VARIANT_DPDK;
        else
                return -EINVAL;
 
@@ -864,6 +866,10 @@ sfc_get_fw_variant(struct sfc_adapter *sa, efx_fw_variant_t *efv)
                *efv = EFX_FW_VARIANT_PACKED_STREAM;
                break;
 
+       case EFX_RXDP_DPDK_FW_ID:
+               *efv = EFX_FW_VARIANT_DPDK;
+               break;
+
        default:
                /*
                 * Other firmware variants are not considered, since they are
@@ -886,6 +892,8 @@ sfc_fw_variant2str(efx_fw_variant_t efv)
                return SFC_KVARG_FW_VARIANT_LOW_LATENCY;
        case EFX_RXDP_PACKED_STREAM_FW_ID:
                return SFC_KVARG_FW_VARIANT_PACKED_STREAM;
+       case EFX_RXDP_DPDK_FW_ID:
+               return SFC_KVARG_FW_VARIANT_DPDK;
        default:
                return "unknown";
        }

diff --git a/drivers/net/sfc/sfc_kvargs.h b/drivers/net/sfc/sfc_kvargs.h
index 057002e678c6056d1a67e7c27ffe43a350d93536..9f21cfdbea3248bb7d4173281c940fbf02ef7abf 100644 (file)
--- a/drivers/net/sfc/sfc_kvargs.h
+++ b/drivers/net/sfc/sfc_kvargs.h
@@ -53,11 +53,13 @@ extern "C" {
 #define SFC_KVARG_FW_VARIANT_FULL_FEATURED     "full-feature"
 #define SFC_KVARG_FW_VARIANT_LOW_LATENCY       "ultra-low-latency"
 #define SFC_KVARG_FW_VARIANT_PACKED_STREAM     "capture-packed-stream"
+#define SFC_KVARG_FW_VARIANT_DPDK              "dpdk"
 #define SFC_KVARG_VALUES_FW_VARIANT \
        "[" SFC_KVARG_FW_VARIANT_DONT_CARE "|" \
            SFC_KVARG_FW_VARIANT_FULL_FEATURED "|" \
            SFC_KVARG_FW_VARIANT_LOW_LATENCY "|" \
-           SFC_KVARG_FW_VARIANT_PACKED_STREAM "]"
+           SFC_KVARG_FW_VARIANT_PACKED_STREAM "|" \
+           SFC_KVARG_FW_VARIANT_DPDK "]"
 
 struct sfc_adapter;