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authorEdward Cree <ecree@solarflare.com>2017-01-14 00:20:29 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-16 22:00:46 +0300
commitc634700f7eec3c0da46e299cd0a0ae8b594f9b55 (patch)
tree626daecfa450bfadaa774807c78fcc0d74cd1077 /drivers/net/ethernet/sfc/nic.h
parentde1deff994286f464d5cad152d97830a5155f9ba (diff)
downloadlinux-c634700f7eec3c0da46e299cd0a0ae8b594f9b55.tar.xz
sfc: get PIO buffer size from the NIC
The 8000 series SFC NICs have 4K PIO buffers, rather than the 2K of the 7000 series. Rather than having a hard-coded PIO buffer size (ER_DZ_TX_PIOBUF_SIZE), read it from the GET_CAPABILITIES_V2 MCDI response. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/nic.h')
-rw-r--r--drivers/net/ethernet/sfc/nic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 6a69aa3b0129..383ff6e1e647 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -343,6 +343,7 @@ enum {
* @pio_write_base: Base address for writing PIO buffers
* @pio_write_vi_base: Relative VI number for @pio_write_base
* @piobuf_handle: Handle of each PIO buffer allocated
+ * @piobuf_size: size of a single PIO buffer
* @must_restore_piobufs: Flag: PIO buffers have yet to be restored after MC
* reboot
* @rx_rss_context: Firmware handle for our RSS context
@@ -380,6 +381,7 @@ struct efx_ef10_nic_data {
void __iomem *wc_membase, *pio_write_base;
unsigned int pio_write_vi_base;
unsigned int piobuf_handle[EF10_TX_PIOBUF_COUNT];
+ u16 piobuf_size;
bool must_restore_piobufs;
u32 rx_rss_context;
bool rx_rss_context_exclusive;