[PATCH net-next 3/3] cxgb4: enable RSS for FCoE frames
From: Varun Prakash <varun@chelsio.com>
Date: 2015-03-27 15:00:04
Also in:
linux-scsi
Subsystem:
cxgb4 ethernet driver (cxgb4), networking drivers, the rest · Maintainers:
Potnuri Bharat Teja, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Signed-off-by: Varun Prakash <varun@chelsio.com> --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 8 ++++++++ drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 8 ++++++++ 2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index d235d3b..be39946 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c@@ -918,6 +918,9 @@ static int write_rss(const struct port_info *pi, const u16 *queues) static int setup_rss(struct adapter *adap) { int i, err; +#ifdef CONFIG_CHELSIO_T4_FCOE + u32 rss_config; +#endif for_each_port(adap, i) { const struct port_info *pi = adap2pinfo(adap, i);
@@ -926,6 +929,11 @@ static int setup_rss(struct adapter *adap) if (err) return err; } +#ifdef CONFIG_CHELSIO_T4_FCOE + rss_config = t4_read_reg(adap, TP_RSS_CONFIG_A); + rss_config |= TNLFCOEEN_F | TNLFCOEMODE_F; + t4_write_reg(adap, TP_RSS_CONFIG_A, rss_config); +#endif return 0; }
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 231a725..57226c5 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h@@ -1853,6 +1853,14 @@ #define DISABLE_V(x) ((x) << DISABLE_S) #define DISABLE_F DISABLE_V(1U) +#define TNLFCOEMODE_S 23 +#define TNLFCOEMODE_V(x) ((x) << TNLFCOEMODE_S) +#define TNLFCOEMODE_F TNLFCOEMODE_V(1U) + +#define TNLFCOEEN_S 21 +#define TNLFCOEEN_V(x) ((x) << TNLFCOEEN_S) +#define TNLFCOEEN_F TNLFCOEEN_V(1U) + #define TP_RSS_CONFIG_TNL_A 0x7df4 #define MASKSIZE_S 28
--
1.7.1