diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index 8179e5060a186414b198a1e309c045578f8b4586..bb417d746a165bed4d9b783c95e51921d1f72554 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -1242,6 +1242,47 @@ static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
}
}
+/**
+ * ixgbe_set_rxpba_82598 - Configure packet buffers
+ * @hw: pointer to hardware structure
+ * @dcb_config: pointer to ixgbe_dcb_config structure
+ *
+ * Configure packet buffers.
+ */
+static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb, u32 headroom,
+ int strategy)
+{
+ u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
+ u8 i = 0;
+
+ if (!num_pb)
+ return;
+
+ /* Setup Rx packet buffer sizes */
+ switch (strategy) {
+ case PBA_STRATEGY_WEIGHTED:
+ /* Setup the first four at 80KB */
+ rxpktsize = IXGBE_RXPBSIZE_80KB;
+ for (; i < 4; i++)
+ IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
+ /* Setup the last four at 48KB...don't re-init i */
+ rxpktsize = IXGBE_RXPBSIZE_48KB;
+ /* Fall Through */
+ case PBA_STRATEGY_EQUAL:
+ default:
+ /* Divide the remaining Rx packet buffer evenly among the TCs */
+ for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
+ IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
+ break;
+ }
+
+ /* Setup Tx packet buffer sizes */
+ for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
+ IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
+
+ return;
+}
+
static struct ixgbe_mac_operations mac_ops_82598 = {
.init_hw = &ixgbe_init_hw_generic,
.reset_hw = &ixgbe_reset_hw_82598,
@@ -1257,6 +1298,7 @@ static struct ixgbe_mac_operations mac_ops_82598 = {
.read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
.write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
.setup_link = &ixgbe_setup_mac_link_82598,
+ .set_rxpba = &ixgbe_set_rxpba_82598,
.check_link = &ixgbe_check_mac_link_82598,
.get_link_capabilities = &ixgbe_get_link_capabilities_82598,
.led_on = &ixgbe_led_on_generic,
diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index 0d7bc91563530663919aba6bbe0d385871992730..324a5051f8152c726b3b0416f46f74086b67e805 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -1114,27 +1114,8 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc)
{
u32 fdirctrl = 0;
- u32 pbsize;
int i;
- /*
- * Before enabling Flow Director, the Rx Packet Buffer size
- * must be reduced. The new value is the current size minus
- * flow director memory usage size.
- */
- pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc));
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
- (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
-
- /*
- * The defaults in the HW for RX PB 1-7 are not zero and so should be
- * initialized to zero for non DCB mode otherwise actual total RX PB
- * would be bigger than programmed and filter space would run into
- * the PB 0 region.
- */
- for (i = 1; i < 8; i++)
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
-
/* Send interrupt when 64 filters are left */
fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
@@ -1202,27 +1183,8 @@ s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc)
s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc)
{
u32 fdirctrl = 0;
- u32 pbsize;
int i;
- /*
- * Before enabling Flow Director, the Rx Packet Buffer size
- * must be reduced. The new value is the current size minus
- * flow director memory usage size.
- */
- pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc));
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
- (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
-
- /*
- * The defaults in the HW for RX PB 1-7 are not zero and so should be
- * initialized to zero for non DCB mode otherwise actual total RX PB
- * would be bigger than programmed and filter space would run into
- * the PB 0 region.
- */
- for (i = 1; i < 8; i++)
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
-
/* Send interrupt when 64 filters are left */
fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
@@ -2146,6 +2108,7 @@ static struct ixgbe_mac_operations mac_ops_82599 = {
.read_analog_reg8 = &ixgbe_read_analog_reg8_82599,
.write_analog_reg8 = &ixgbe_write_analog_reg8_82599,
.setup_link = &ixgbe_setup_mac_link_82599,
+ .set_rxpba = &ixgbe_set_rxpba_generic,
.check_link = &ixgbe_check_mac_link_generic,
.get_link_capabilities = &ixgbe_get_link_capabilities_82599,
.led_on = &ixgbe_led_on_generic,
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index de65643b79a44d5e2d3ae860e0bf9a738f50687c..cc2a4a1528e262fc6ff1489c49e920b911db3b86 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -3267,3 +3267,69 @@ s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps)
return 0;
}
+
+/**
+ * ixgbe_set_rxpba_generic - Initialize RX packet buffer
+ * @hw: pointer to hardware structure
+ * @num_pb: number of packet buffers to allocate
+ * @headroom: reserve n KB of headroom
+ * @strategy: packet buffer allocation strategy
+ **/
+void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw,
+ int num_pb,
+ u32 headroom,
+ int strategy)
+{
+ u32 pbsize = hw->mac.rx_pb_size;
+ int i = 0;
+ u32 rxpktsize, txpktsize, txpbthresh;
+
+ /* Reserve headroom */
+ pbsize -= headroom;
+
+ if (!num_pb)
+ num_pb = 1;
+
+ /* Divide remaining packet buffer space amongst the number
+ * of packet buffers requested using supplied strategy.
+ */
+ switch (strategy) {
+ case (PBA_STRATEGY_WEIGHTED):
+ /* pba_80_48 strategy weight first half of packet buffer with
+ * 5/8 of the packet buffer space.
+ */
+ rxpktsize = ((pbsize * 5 * 2) / (num_pb * 8));
+ pbsize -= rxpktsize * (num_pb / 2);
+ rxpktsize <<= IXGBE_RXPBSIZE_SHIFT;
+ for (; i < (num_pb / 2); i++)
+ IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
+ /* Fall through to configure remaining packet buffers */
+ case (PBA_STRATEGY_EQUAL):
+ /* Divide the remaining Rx packet buffer evenly among the TCs */
+ rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT;
+ for (; i < num_pb; i++)
+ IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * Setup Tx packet buffer and threshold equally for all TCs
+ * TXPBTHRESH register is set in K so divide by 1024 and subtract
+ * 10 since the largest packet we support is just over 9K.
+ */
+ txpktsize = IXGBE_TXPBSIZE_MAX / num_pb;
+ txpbthresh = (txpktsize / 1024) - IXGBE_TXPKT_SIZE_MAX;
+ for (i = 0; i < num_pb; i++) {
+ IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
+ IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
+ }
+
+ /* Clear unused TCs, if any, to zero buffer size*/
+ for (; i < IXGBE_MAX_PB; i++) {
+ IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
+ IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
+ IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
+ }
+}
diff --git a/drivers/net/ixgbe/ixgbe_common.h b/drivers/net/ixgbe/ixgbe_common.h
index 46be83cfb50088b99c4099195cb7267ecb1d3b9b..32a454fc67cb3423b80b47db8b8da2b6b26d8afc 100644
--- a/drivers/net/ixgbe/ixgbe_common.h
+++ b/drivers/net/ixgbe/ixgbe_common.h
@@ -100,6 +100,9 @@ void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int pf);
void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf);
s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps);
+void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw, int num_pb,
+ u32 headroom, int strategy);
+
#define IXGBE_WRITE_REG(a, reg, value) writel((value), ((a)->hw_addr + (reg)))
#ifndef writeq
diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c
index 686a17aadef33147539e5b283ab630bfdd0dd316..9d88c31487bcbc55a1a7e83d35ec00000bf9c69f 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.c
+++ b/drivers/net/ixgbe/ixgbe_dcb.c
@@ -258,15 +258,13 @@ s32 ixgbe_dcb_hw_config(struct ixgbe_hw *hw,
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
- ret = ixgbe_dcb_hw_config_82598(hw, dcb_config->rx_pba_cfg,
- pfc_en, refill, max, bwgid,
- ptype);
+ ret = ixgbe_dcb_hw_config_82598(hw, pfc_en, refill, max,
+ bwgid, ptype);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
- ret = ixgbe_dcb_hw_config_82599(hw, dcb_config->rx_pba_cfg,
- pfc_en, refill, max, bwgid,
- ptype, prio_tc);
+ ret = ixgbe_dcb_hw_config_82599(hw, pfc_en, refill, max,
+ bwgid, ptype, prio_tc);
break;
default:
break;
diff --git a/drivers/net/ixgbe/ixgbe_dcb.h b/drivers/net/ixgbe/ixgbe_dcb.h
index 944838fc7b59d517b07f3ff90308d4d2cf3fd1f8..e85826ae0320ad3fc8a49bedd4e5bbafba5339db 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.h
+++ b/drivers/net/ixgbe/ixgbe_dcb.h
@@ -123,11 +123,6 @@ struct tc_configuration {
u8 tc; /* Traffic class (TC) */
};
-enum dcb_rx_pba_cfg {
- pba_equal, /* PBA[0-7] each use 64KB FIFO */
- pba_80_48 /* PBA[0-3] each use 80KB, PBA[4-7] each use 48KB */
-};
-
struct dcb_num_tcs {
u8 pg_tcs;
u8 pfc_tcs;
@@ -140,8 +135,6 @@ struct ixgbe_dcb_config {
u8 bw_percentage[2][MAX_BW_GROUP]; /* One each for Tx/Rx */
bool pfc_mode_enable;
- enum dcb_rx_pba_cfg rx_pba_cfg;
-
u32 dcb_cfg_version; /* Not used...OS-specific? */
u32 link_speed; /* For bandwidth allocation validation purpose */
};
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82598.c b/drivers/net/ixgbe/ixgbe_dcb_82598.c
index 771d01a60d064d33f85306e7931d837195603358..2288c3cac0106927ef566e97b11d9fdfc143bec2 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_82598.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_82598.c
@@ -31,45 +31,6 @@
#include "ixgbe_dcb.h"
#include "ixgbe_dcb_82598.h"
-/**
- * ixgbe_dcb_config_packet_buffers_82598 - Configure packet buffers
- * @hw: pointer to hardware structure
- * @dcb_config: pointer to ixgbe_dcb_config structure
- *
- * Configure packet buffers for DCB mode.
- */
-static s32 ixgbe_dcb_config_packet_buffers_82598(struct ixgbe_hw *hw, u8 rx_pba)
-{
- s32 ret_val = 0;
- u32 value = IXGBE_RXPBSIZE_64KB;
- u8 i = 0;
-
- /* Setup Rx packet buffer sizes */
- switch (rx_pba) {
- case pba_80_48:
- /* Setup the first four at 80KB */
- value = IXGBE_RXPBSIZE_80KB;
- for (; i < 4; i++)
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), value);
- /* Setup the last four at 48KB...don't re-init i */
- value = IXGBE_RXPBSIZE_48KB;
- /* Fall Through */
- case pba_equal:
- default:
- for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), value);
-
- /* Setup Tx packet buffer sizes */
- for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
- IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i),
- IXGBE_TXPBSIZE_40KB);
- }
- break;
- }
-
- return ret_val;
-}
-
/**
* ixgbe_dcb_config_rx_arbiter_82598 - Config Rx data arbiter
* @hw: pointer to hardware structure
@@ -321,11 +282,9 @@ static s32 ixgbe_dcb_config_tc_stats_82598(struct ixgbe_hw *hw)
*
* Configure dcb settings and enable dcb mode.
*/
-s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw,
- u8 rx_pba, u8 pfc_en, u16 *refill,
+s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
u16 *max, u8 *bwg_id, u8 *prio_type)
{
- ixgbe_dcb_config_packet_buffers_82598(hw, rx_pba);
ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, prio_type);
ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max,
bwg_id, prio_type);
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82598.h b/drivers/net/ixgbe/ixgbe_dcb_82598.h
index 1e9750c2b46b776f766eae1035d7d54e9b6004ad..2f318935561a75e16051b9037178060f20def1c6 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_82598.h
+++ b/drivers/net/ixgbe/ixgbe_dcb_82598.h
@@ -91,8 +91,7 @@ s32 ixgbe_dcb_config_tx_data_arbiter_82598(struct ixgbe_hw *hw,
u8 *bwg_id,
u8 *prio_type);
-s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw,
- u8 rx_pba, u8 pfc_en, u16 *refill,
+s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
u16 *max, u8 *bwg_id, u8 *prio_type);
#endif /* _DCB_82598_CONFIG_H */
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.c b/drivers/net/ixgbe/ixgbe_dcb_82599.c
index d50cf78c234d57f634900264191f23bfff7b7a17..befe8ad134c541b4f79b149d6642a56f9bf18c32 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_82599.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_82599.c
@@ -30,63 +30,6 @@
#include "ixgbe_dcb.h"
#include "ixgbe_dcb_82599.h"
-/**
- * ixgbe_dcb_config_packet_buffers_82599 - Configure DCB packet buffers
- * @hw: pointer to hardware structure
- * @rx_pba: method to distribute packet buffer
- *
- * Configure packet buffers for DCB mode.
- */
-static s32 ixgbe_dcb_config_packet_buffers_82599(struct ixgbe_hw *hw, u8 rx_pba)
-{
- int num_tcs = IXGBE_MAX_PACKET_BUFFERS;
- u32 rx_pb_size = hw->mac.rx_pb_size << IXGBE_RXPBSIZE_SHIFT;
- u32 rxpktsize;
- u32 txpktsize;
- u32 txpbthresh;
- u8 i = 0;
-
- /*
- * This really means configure the first half of the TCs
- * (Traffic Classes) to use 5/8 of the Rx packet buffer
- * space. To determine the size of the buffer for each TC,
- * we are multiplying the average size by 5/4 and applying
- * it to half of the traffic classes.
- */
- if (rx_pba == pba_80_48) {
- rxpktsize = (rx_pb_size * 5) / (num_tcs * 4);
- rx_pb_size -= rxpktsize * (num_tcs / 2);
- for (; i < (num_tcs / 2); i++)
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
- }
-
- /* Divide the remaining Rx packet buffer evenly among the TCs */
- rxpktsize = rx_pb_size / (num_tcs - i);
- for (; i < num_tcs; i++)
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
-
- /*
- * Setup Tx packet buffer and threshold equally for all TCs
- * TXPBTHRESH register is set in K so divide by 1024 and subtract
- * 10 since the largest packet we support is just over 9K.
- */
- txpktsize = IXGBE_TXPBSIZE_MAX / num_tcs;
- txpbthresh = (txpktsize / 1024) - IXGBE_TXPKT_SIZE_MAX;
- for (i = 0; i < num_tcs; i++) {
- IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
- IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
- }
-
- /* Clear unused TCs, if any, to zero buffer size*/
- for (; i < MAX_TRAFFIC_CLASS; i++) {
- IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
- IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
- IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
- }
-
- return 0;
-}
-
/**
* ixgbe_dcb_config_rx_arbiter_82599 - Config Rx Data arbiter
* @hw: pointer to hardware structure
@@ -434,7 +377,6 @@ static s32 ixgbe_dcb_config_82599(struct ixgbe_hw *hw)
/**
* ixgbe_dcb_hw_config_82599 - Configure and enable DCB
* @hw: pointer to hardware structure
- * @rx_pba: method to distribute packet buffer
* @refill: refill credits index by traffic class
* @max: max credits index by traffic class
* @bwg_id: bandwidth grouping indexed by traffic class
@@ -443,11 +385,9 @@ static s32 ixgbe_dcb_config_82599(struct ixgbe_hw *hw)
*
* Configure dcb settings and enable dcb mode.
*/
-s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw,
- u8 rx_pba, u8 pfc_en, u16 *refill,
+s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
u16 *max, u8 *bwg_id, u8 *prio_type, u8 *prio_tc)
{
- ixgbe_dcb_config_packet_buffers_82599(hw, rx_pba);
ixgbe_dcb_config_82599(hw);
ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwg_id,
prio_type, prio_tc);
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.h b/drivers/net/ixgbe/ixgbe_dcb_82599.h
index 2de71a5031535f9223f3e61419edc4768c854e21..08d1749862a3d415e8e82c9f65e615393100a600 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_82599.h
+++ b/drivers/net/ixgbe/ixgbe_dcb_82599.h
@@ -86,17 +86,6 @@
#define IXGBE_RTTPCS_ARBD_SHIFT 22
#define IXGBE_RTTPCS_ARBD_DCB 0x4 /* Arbitration delay in DCB mode */
-#define IXGBE_TXPBSIZE_20KB 0x00005000 /* 20KB Packet Buffer */
-#define IXGBE_TXPBSIZE_40KB 0x0000A000 /* 40KB Packet Buffer */
-#define IXGBE_RXPBSIZE_48KB 0x0000C000 /* 48KB Packet Buffer */
-#define IXGBE_RXPBSIZE_64KB 0x00010000 /* 64KB Packet Buffer */
-#define IXGBE_RXPBSIZE_80KB 0x00014000 /* 80KB Packet Buffer */
-#define IXGBE_RXPBSIZE_128KB 0x00020000 /* 128KB Packet Buffer */
-#define IXGBE_TXPBSIZE_MAX 0x00028000 /* 160KB Packet Buffer*/
-
-#define IXGBE_TXPBTHRESH_DCB 0xA /* THRESH value for DCB mode */
-#define IXGBE_TXPKT_SIZE_MAX 0xA /* Max Tx Packet size */
-
/* SECTXMINIFG DCB */
#define IXGBE_SECTX_DCB 0x00001F00 /* DCB TX Buffer IFG */
@@ -127,8 +116,7 @@ s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw,
u8 *prio_type,
u8 *prio_tc);
-s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw,
- u8 rx_pba, u8 pfc_en, u16 *refill,
+s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
u16 *max, u8 *bwg_id, u8 *prio_type,
u8 *prio_tc);
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 06cfaf31bcf3135b4d9d5ebd9e735253ba55dd43..fba1e323495e03c3cd0130233f7f64d0d1aa2428 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3780,12 +3780,27 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
}
#endif
+
+static void ixgbe_configure_pb(struct ixgbe_adapter *adapter)
+{
+ int hdrm = 0;
+ int num_tc = netdev_get_num_tc(adapter->netdev);
+ struct ixgbe_hw *hw = &adapter->hw;
+
+ if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||
+ adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)
+ hdrm = 64 << adapter->fdir_pballoc;
+
+ hw->mac.ops.set_rxpba(&adapter->hw, num_tc, hdrm, PBA_STRATEGY_EQUAL);
+}
+
static void ixgbe_configure(struct ixgbe_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct ixgbe_hw *hw = &adapter->hw;
int i;
+ ixgbe_configure_pb(adapter);
#ifdef CONFIG_IXGBE_DCB
ixgbe_configure_dcb(adapter);
#endif
@@ -5251,7 +5266,6 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
}
adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100;
adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100;
- adapter->dcb_cfg.rx_pba_cfg = pba_equal;
adapter->dcb_cfg.pfc_mode_enable = false;
adapter->dcb_set_bitmap = 0x00;
adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE;
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index fa43f2507f43f9c1c5e98fdb15736f2579fbd427..c0849a649d4e18c826384f3659c761427f02113b 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -1118,6 +1118,27 @@
#define IXGBE_GPIE_VTMODE_32 0x00008000 /* 32 VFs 4 queues per VF */
#define IXGBE_GPIE_VTMODE_64 0x0000C000 /* 64 VFs 2 queues per VF */
+/* Packet Buffer Initialization */
+#define IXGBE_TXPBSIZE_20KB 0x00005000 /* 20KB Packet Buffer */
+#define IXGBE_TXPBSIZE_40KB 0x0000A000 /* 40KB Packet Buffer */
+#define IXGBE_RXPBSIZE_48KB 0x0000C000 /* 48KB Packet Buffer */
+#define IXGBE_RXPBSIZE_64KB 0x00010000 /* 64KB Packet Buffer */
+#define IXGBE_RXPBSIZE_80KB 0x00014000 /* 80KB Packet Buffer */
+#define IXGBE_RXPBSIZE_128KB 0x00020000 /* 128KB Packet Buffer */
+#define IXGBE_RXPBSIZE_MAX 0x00080000 /* 512KB Packet Buffer*/
+#define IXGBE_TXPBSIZE_MAX 0x00028000 /* 160KB Packet Buffer*/
+
+#define IXGBE_TXPKT_SIZE_MAX 0xA /* Max Tx Packet size */
+#define IXGBE_MAX_PB 8
+
+/* Packet buffer allocation strategies */
+enum {
+ PBA_STRATEGY_EQUAL = 0, /* Distribute PB space equally */
+#define PBA_STRATEGY_EQUAL PBA_STRATEGY_EQUAL
+ PBA_STRATEGY_WEIGHTED = 1, /* Weight front half of TCs */
+#define PBA_STRATEGY_WEIGHTED PBA_STRATEGY_WEIGHTED
+};
+
/* Transmit Flow Control status */
#define IXGBE_TFCS_TXOFF 0x00000001
#define IXGBE_TFCS_TXOFF0 0x00000100
@@ -2615,6 +2636,9 @@ struct ixgbe_mac_operations {
s32 (*get_link_capabilities)(struct ixgbe_hw *, ixgbe_link_speed *,
bool *);
+ /* Packet Buffer Manipulation */
+ void (*set_rxpba)(struct ixgbe_hw *, int, u32, int);
+
/* LED */
s32 (*led_on)(struct ixgbe_hw *, u32);
s32 (*led_off)(struct ixgbe_hw *, u32);
diff --git a/drivers/net/ixgbe/ixgbe_x540.c b/drivers/net/ixgbe/ixgbe_x540.c
index 4ed687be2fe363d8bbe162f5194911a5f371f110..fa566ede7654063c459e02fa421378f97329fca3 100644
--- a/drivers/net/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ixgbe/ixgbe_x540.c
@@ -876,6 +876,7 @@ static struct ixgbe_mac_operations mac_ops_X540 = {
.read_analog_reg8 = NULL,
.write_analog_reg8 = NULL,
.setup_link = &ixgbe_setup_mac_link_X540,
+ .set_rxpba = &ixgbe_set_rxpba_generic,
.check_link = &ixgbe_check_mac_link_generic,
.get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic,
.led_on = &ixgbe_led_on_generic,