New upstream version 18.08

[deb_dpdk.git] / drivers / net / sfc / sfc_ef10.h

diff --git a/drivers/net/sfc/sfc_ef10.h b/drivers/net/sfc/sfc_ef10.h
index ace6a1d..a73e0bd 100644 (file)
--- a/drivers/net/sfc/sfc_ef10.h
+++ b/drivers/net/sfc/sfc_ef10.h
@@ -79,6 +79,40 @@ sfc_ef10_ev_present(const efx_qword_t ev)
               ~EFX_QWORD_FIELD(ev, EFX_DWORD_1);
 }
 
+
+/**
+ * Alignment requirement for value written to RX WPTR:
+ * the WPTR must be aligned to an 8 descriptor boundary.
+ */
+#define SFC_EF10_RX_WPTR_ALIGN 8u
+
+static inline void
+sfc_ef10_rx_qpush(volatile void *doorbell, unsigned int added,
+                 unsigned int ptr_mask)
+{
+       efx_dword_t dword;
+
+       /* Hardware has alignment restriction for WPTR */
+       RTE_BUILD_BUG_ON(SFC_RX_REFILL_BULK % SFC_EF10_RX_WPTR_ALIGN != 0);
+       SFC_ASSERT(RTE_ALIGN(added, SFC_EF10_RX_WPTR_ALIGN) == added);
+
+       EFX_POPULATE_DWORD_1(dword, ERF_DZ_RX_DESC_WPTR, added & ptr_mask);
+
+       /* DMA sync to device is not required */
+
+       /*
+        * rte_write32() has rte_io_wmb() which guarantees that the STORE
+        * operations (i.e. Rx and event descriptor updates) that precede
+        * the rte_io_wmb() call are visible to NIC before the STORE
+        * operations that follow it (i.e. doorbell write).
+        */
+       rte_write32(dword.ed_u32[0], doorbell);
+}
+
+
+const uint32_t * sfc_ef10_supported_ptypes_get(uint32_t tunnel_encaps);
+
+
 #ifdef __cplusplus
 }
 #endif