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Message-ID: <20200622145309.455-5-irusskikh@marvell.com>
Date: Mon, 22 Jun 2020 17:53:07 +0300
From: Igor Russkikh <irusskikh@...vell.com>
To: <netdev@...r.kernel.org>
CC: "David S . Miller" <davem@...emloft.net>,
Mark Starovoytov <mstarovoitov@...vell.com>,
Igor Russkikh <irusskikh@...vell.com>,
"Dmitry Bogdanov" <dbogdanov@...vell.com>
Subject: [PATCH net-next 4/6] net: atlantic: A2: flow control support
This patch adds flow control support on A2.
Co-developed-by: Dmitry Bogdanov <dbogdanov@...vell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@...vell.com>
Signed-off-by: Igor Russkikh <irusskikh@...vell.com>
---
.../aquantia/atlantic/hw_atl/hw_atl_b0.c | 2 +-
.../aquantia/atlantic/hw_atl/hw_atl_b0.h | 2 ++
.../aquantia/atlantic/hw_atl2/hw_atl2.c | 3 ++
.../atlantic/hw_atl2/hw_atl2_utils_fw.c | 36 +++++++++++++++++++
4 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
index 14d79f70cad7..8ed6fd845969 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
@@ -108,7 +108,7 @@ static int hw_atl_b0_hw_reset(struct aq_hw_s *self)
return err;
}
-static int hw_atl_b0_set_fc(struct aq_hw_s *self, u32 fc, u32 tc)
+int hw_atl_b0_set_fc(struct aq_hw_s *self, u32 fc, u32 tc)
{
hw_atl_rpb_rx_xoff_en_per_tc_set(self, !!(fc & AQ_NIC_FC_RX), tc);
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h
index 30f468f2084d..bd9a6fb005c9 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h
@@ -62,6 +62,8 @@ void hw_atl_b0_hw_init_rx_rss_ctrl1(struct aq_hw_s *self);
int hw_atl_b0_hw_mac_addr_set(struct aq_hw_s *self, u8 *mac_addr);
+int hw_atl_b0_set_fc(struct aq_hw_s *self, u32 fc, u32 tc);
+
int hw_atl_b0_hw_start(struct aq_hw_s *self);
int hw_atl_b0_hw_irq_enable(struct aq_hw_s *self, u64 mask);
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
index 239d077e21d7..c306c26e802b 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
@@ -181,6 +181,8 @@ static int hw_atl2_hw_qos_set(struct aq_hw_s *self)
threshold = (rx_buff_size * (1024U / 32U) * 50U) / 100U;
hw_atl_rpb_rx_buff_lo_threshold_per_tc_set(self, threshold, tc);
+
+ hw_atl_b0_set_fc(self, self->aq_nic_cfg->fc.req, tc);
}
/* QoS 802.1p priority -> TC mapping */
@@ -841,4 +843,5 @@ const struct aq_hw_ops hw_atl2_ops = {
.hw_get_hw_stats = hw_atl2_utils_get_hw_stats,
.hw_get_fw_version = hw_atl2_utils_get_fw_version,
.hw_set_offload = hw_atl_b0_hw_offload_set,
+ .hw_set_fc = hw_atl_b0_set_fc,
};
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
index 9216517f6e65..0edcc0253b2e 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
@@ -190,6 +190,15 @@ static int aq_a2_fw_set_link_speed(struct aq_hw_s *self, u32 speed)
return hw_atl2_shared_buffer_finish_ack(self);
}
+static void aq_a2_fw_set_mpi_flow_control(struct aq_hw_s *self,
+ struct link_options_s *link_options)
+{
+ u32 flow_control = self->aq_nic_cfg->fc.req;
+
+ link_options->pause_rx = !!(flow_control & AQ_NIC_FC_RX);
+ link_options->pause_tx = !!(flow_control & AQ_NIC_FC_TX);
+}
+
static void aq_a2_fw_upd_eee_rate_bits(struct aq_hw_s *self,
struct link_options_s *link_options,
u32 eee_speeds)
@@ -213,6 +222,7 @@ static int aq_a2_fw_set_state(struct aq_hw_s *self,
link_options.link_up = 1U;
aq_a2_fw_upd_eee_rate_bits(self, &link_options,
self->aq_nic_cfg->eee_speeds);
+ aq_a2_fw_set_mpi_flow_control(self, &link_options);
break;
case MPI_DEINIT:
link_options.link_up = 0U;
@@ -363,6 +373,30 @@ static int aq_a2_fw_renegotiate(struct aq_hw_s *self)
return err;
}
+static int aq_a2_fw_set_flow_control(struct aq_hw_s *self)
+{
+ struct link_options_s link_options;
+
+ hw_atl2_shared_buffer_get(self, link_options, link_options);
+
+ aq_a2_fw_set_mpi_flow_control(self, &link_options);
+
+ hw_atl2_shared_buffer_write(self, link_options, link_options);
+
+ return hw_atl2_shared_buffer_finish_ack(self);
+}
+
+static u32 aq_a2_fw_get_flow_control(struct aq_hw_s *self, u32 *fcmode)
+{
+ struct link_status_s link_status;
+
+ hw_atl2_shared_buffer_read(self, link_status, link_status);
+
+ *fcmode = ((link_status.pause_rx) ? AQ_NIC_FC_RX : 0) |
+ ((link_status.pause_tx) ? AQ_NIC_FC_TX : 0);
+ return 0;
+}
+
u32 hw_atl2_utils_get_fw_version(struct aq_hw_s *self)
{
struct version_s version;
@@ -402,4 +436,6 @@ const struct aq_fw_ops aq_a2_fw_ops = {
.update_stats = aq_a2_fw_update_stats,
.set_eee_rate = aq_a2_fw_set_eee_rate,
.get_eee_rate = aq_a2_fw_get_eee_rate,
+ .set_flow_control = aq_a2_fw_set_flow_control,
+ .get_flow_control = aq_a2_fw_get_flow_control,
};
--
2.25.1
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