aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/cadence/macb.h
diff options
context:
space:
mode:
authorHarini Katakam <harini.katakam@xilinx.com>2015-05-06 22:27:17 +0530
committerDavid S. Miller <davem@davemloft.net>2015-05-09 17:41:54 -0400
commit98b5a0f4a2282fb82907bee467636b8114677472 (patch)
tree9e2c3c71cf419545db56fb442adb31fb118e2dca /drivers/net/ethernet/cadence/macb.h
parentnet: macb: Add compatible string for Zynq Ultrascale+ MPSoC (diff)
downloadlinux-dev-98b5a0f4a2282fb82907bee467636b8114677472.tar.xz
linux-dev-98b5a0f4a2282fb82907bee467636b8114677472.zip
net: macb: Add support for jumbo frames
Enable jumbo frame support for Zynq Ultrascale+ MPSoC. Update the NWCFG register and descriptor length masks accordingly. Jumbo max length register should be set according to support in SoC; it is set to 10240 for Zynq Ultrascale+ MPSoC. Signed-off-by: Harini Katakam <harinik@xilinx.com> Reviewed-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cadence/macb.h')
-rw-r--r--drivers/net/ethernet/cadence/macb.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index eb7d76f7bf6a..7d4ef513df75 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -71,6 +71,7 @@
#define GEM_NCFGR 0x0004 /* Network Config */
#define GEM_USRIO 0x000c /* User IO */
#define GEM_DMACFG 0x0010 /* DMA Configuration */
+#define GEM_JML 0x0048 /* Jumbo Max Length */
#define GEM_HRB 0x0080 /* Hash Bottom */
#define GEM_HRT 0x0084 /* Hash Top */
#define GEM_SA1B 0x0088 /* Specific1 Bottom */
@@ -397,6 +398,7 @@
#define MACB_CAPS_GIGABIT_MODE_AVAILABLE 0x20000000
#define MACB_CAPS_SG_DISABLED 0x40000000
#define MACB_CAPS_MACB_IS_GEM 0x80000000
+#define MACB_CAPS_JUMBO 0x00000008
/* Bit manipulation macros */
#define MACB_BIT(name) \
@@ -514,6 +516,9 @@ struct macb_dma_desc {
#define MACB_RX_BROADCAST_OFFSET 31
#define MACB_RX_BROADCAST_SIZE 1
+#define MACB_RX_FRMLEN_MASK 0xFFF
+#define MACB_RX_JFRMLEN_MASK 0x3FFF
+
/* RX checksum offload disabled: bit 24 clear in NCFGR */
#define GEM_RX_TYPEID_MATCH_OFFSET 22
#define GEM_RX_TYPEID_MATCH_SIZE 2
@@ -757,6 +762,7 @@ struct macb_config {
int (*clk_init)(struct platform_device *pdev, struct clk **pclk,
struct clk **hclk, struct clk **tx_clk);
int (*init)(struct platform_device *pdev);
+ int jumbo_max_len;
};
struct macb_queue {
@@ -826,6 +832,9 @@ struct macb {
unsigned int max_tx_length;
u64 ethtool_stats[GEM_STATS_LEN];
+
+ unsigned int rx_frm_len_mask;
+ unsigned int jumbo_max_len;
};
static inline bool macb_is_gem(struct macb *bp)