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Index: head/sys/dev/sfxge/common/efx.h
===================================================================
--- head/sys/dev/sfxge/common/efx.h
+++ head/sys/dev/sfxge/common/efx.h
@@ -1134,6 +1134,7 @@
uint32_t enc_rx_prefix_size;
uint32_t enc_rx_buf_align_start;
uint32_t enc_rx_buf_align_end;
+ uint32_t enc_rx_scale_max_exclusive_contexts;
#if EFSYS_OPT_LOOPBACK
efx_qword_t enc_loopback_types[EFX_LINK_NMODES];
#endif /* EFSYS_OPT_LOOPBACK */
Index: head/sys/dev/sfxge/common/hunt_nic.c
===================================================================
--- head/sys/dev/sfxge/common/hunt_nic.c
+++ head/sys/dev/sfxge/common/hunt_nic.c
@@ -304,6 +304,13 @@
/* Alignment for WPTR updates */
encp->enc_rx_push_align = EF10_RX_WPTR_ALIGN;
+ /*
+ * Maximum number of exclusive RSS contexts which can be allocated. The
+ * hardware supports 64, but 6 are reserved for shared contexts. They
+ * are a global resource so not all may be available.
+ */
+ encp->enc_rx_scale_max_exclusive_contexts = 58;
+
encp->enc_tx_dma_desc_size_max = EFX_MASK32(ESF_DZ_RX_KER_BYTE_CNT);
/* No boundary crossing limits */
encp->enc_tx_dma_desc_boundary = 0;
Index: head/sys/dev/sfxge/common/medford_nic.c
===================================================================
--- head/sys/dev/sfxge/common/medford_nic.c
+++ head/sys/dev/sfxge/common/medford_nic.c
@@ -301,6 +301,13 @@
/* Alignment for WPTR updates */
encp->enc_rx_push_align = EF10_RX_WPTR_ALIGN;
+ /*
+ * Maximum number of exclusive RSS contexts which can be allocated. The
+ * hardware supports 64, but 6 are reserved for shared contexts. They
+ * are a global resource so not all may be available.
+ */
+ encp->enc_rx_scale_max_exclusive_contexts = 58;
+
encp->enc_tx_dma_desc_size_max = EFX_MASK32(ESF_DZ_RX_KER_BYTE_CNT);
/* No boundary crossing limits */
encp->enc_tx_dma_desc_boundary = 0;
Index: head/sys/dev/sfxge/common/siena_nic.c
===================================================================
--- head/sys/dev/sfxge/common/siena_nic.c
+++ head/sys/dev/sfxge/common/siena_nic.c
@@ -140,6 +140,9 @@
/* Alignment for WPTR updates */
encp->enc_rx_push_align = 1;
+ /* There is one RSS context per function */
+ encp->enc_rx_scale_max_exclusive_contexts = 1;
+
encp->enc_tx_dma_desc_size_max = EFX_MASK32(FSF_AZ_TX_KER_BYTE_COUNT);
/* Fragments must not span 4k boundaries. */
encp->enc_tx_dma_desc_boundary = 4096;

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