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Date: Wed, 12 Aug 2009 21:22:08 +0300
From: "Eilon Greenstein" <eilong@...adcom.com>
To: "David Miller" <davem@...emloft.net>
cc: netdev@...r.kernel.org
Subject: [net-next 04/36] bnx2x: Supporting Device Control Channel
In multi-function mode, the FW can receive special management control commands
to set the Min/Max BW and the the function link state
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/bnx2x.h | 6 +
drivers/net/bnx2x_hsi.h | 34 +++++-
drivers/net/bnx2x_main.c | 325 +++++++++++++++++++++++++++++++++-------------
3 files changed, 268 insertions(+), 97 deletions(-)
diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h
index 16ccba8..5864ae2 100644
--- a/drivers/net/bnx2x.h
+++ b/drivers/net/bnx2x.h
@@ -128,6 +128,11 @@
#define SHMEM_RD(bp, field) REG_RD(bp, SHMEM_ADDR(bp, field))
#define SHMEM_WR(bp, field, val) REG_WR(bp, SHMEM_ADDR(bp, field), val)
+#define SHMEM2_ADDR(bp, field) (bp->common.shmem2_base + \
+ offsetof(struct shmem2_region, field))
+#define SHMEM2_RD(bp, field) REG_RD(bp, SHMEM2_ADDR(bp, field))
+#define SHMEM2_WR(bp, field, val) REG_WR(bp, SHMEM2_ADDR(bp, field), val)
+
#define EMAC_RD(bp, reg) REG_RD(bp, emac_base + reg)
#define EMAC_WR(bp, reg, val) REG_WR(bp, emac_base + reg, val)
@@ -535,6 +540,7 @@ struct bnx2x_common {
#define NVRAM_PAGE_SIZE 256
u32 shmem_base;
+ u32 shmem2_base;
u32 hw_config;
diff --git a/drivers/net/bnx2x_hsi.h b/drivers/net/bnx2x_hsi.h
index da62cc5..8e2261f 100644
--- a/drivers/net/bnx2x_hsi.h
+++ b/drivers/net/bnx2x_hsi.h
@@ -658,6 +658,8 @@ struct drv_func_mb {
#define DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS 0x20010000
#define DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP 0x20020000
#define DRV_MSG_CODE_UNLOAD_DONE 0x21000000
+#define DRV_MSG_CODE_DCC_OK 0x30000000
+#define DRV_MSG_CODE_DCC_FAILURE 0x31000000
#define DRV_MSG_CODE_DIAG_ENTER_REQ 0x50000000
#define DRV_MSG_CODE_DIAG_EXIT_REQ 0x60000000
#define DRV_MSG_CODE_VALIDATE_KEY 0x70000000
@@ -692,6 +694,7 @@ struct drv_func_mb {
#define FW_MSG_CODE_DRV_UNLOAD_PORT 0x20110000
#define FW_MSG_CODE_DRV_UNLOAD_FUNCTION 0x20120000
#define FW_MSG_CODE_DRV_UNLOAD_DONE 0x21100000
+#define FW_MSG_CODE_DCC_DONE 0x30100000
#define FW_MSG_CODE_DIAG_ENTER_DONE 0x50100000
#define FW_MSG_CODE_DIAG_REFUSE 0x50200000
#define FW_MSG_CODE_DIAG_EXIT_DONE 0x60100000
@@ -742,6 +745,14 @@ struct drv_func_mb {
u32 drv_status;
#define DRV_STATUS_PMF 0x00000001
+#define DRV_STATUS_DCC_EVENT_MASK 0x0000ff00
+#define DRV_STATUS_DCC_DISABLE_ENABLE_PF 0x00000100
+#define DRV_STATUS_DCC_BANDWIDTH_ALLOCATION 0x00000200
+#define DRV_STATUS_DCC_CHANGE_MAC_ADDRESS 0x00000400
+#define DRV_STATUS_DCC_RESERVED1 0x00000800
+#define DRV_STATUS_DCC_SET_PROTOCOL 0x00001000
+#define DRV_STATUS_DCC_SET_PRIORITY 0x00002000
+
u32 virt_mac_upper;
#define VIRT_MAC_SIGN_MASK 0xffff0000
#define VIRT_MAC_SIGNATURE 0x564d0000
@@ -778,10 +789,9 @@ struct shared_mf_cfg {
struct port_mf_cfg {
u32 dynamic_cfg; /* device control channel */
-#define PORT_MF_CFG_OUTER_VLAN_TAG_MASK 0x0000ffff
-#define PORT_MF_CFG_OUTER_VLAN_TAG_SHIFT 0
-#define PORT_MF_CFG_DYNAMIC_CFG_ENABLED 0x00010000
-#define PORT_MF_CFG_DYNAMIC_CFG_DEFAULT 0x00000000
+#define PORT_MF_CFG_E1HOV_TAG_MASK 0x0000ffff
+#define PORT_MF_CFG_E1HOV_TAG_SHIFT 0
+#define PORT_MF_CFG_E1HOV_TAG_DEFAULT PORT_MF_CFG_E1HOV_TAG_MASK
u32 reserved[3];
@@ -885,6 +895,22 @@ struct shmem_region { /* SharedMem Offset (size) */
}; /* 0x6dc */
+struct shmem2_region {
+
+ u32 size;
+
+ u32 dcc_support;
+#define SHMEM_DCC_SUPPORT_NONE 0x00000000
+#define SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV 0x00000001
+#define SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV 0x00000004
+#define SHMEM_DCC_SUPPORT_CHANGE_MAC_ADDRESS_TLV 0x00000008
+#define SHMEM_DCC_SUPPORT_SET_PROTOCOL_TLV 0x00000040
+#define SHMEM_DCC_SUPPORT_SET_PRIORITY_TLV 0x00000080
+#define SHMEM_DCC_SUPPORT_DEFAULT SHMEM_DCC_SUPPORT_NONE
+
+};
+
+
struct emac_stats {
u32 rx_stat_ifhcinoctets;
u32 rx_stat_ifhcinbadoctets;
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 76b7fac..442ba61 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -2103,6 +2103,12 @@ static void bnx2x_calc_fc_adv(struct bnx2x *bp)
static void bnx2x_link_report(struct bnx2x *bp)
{
+ if (bp->state == BNX2X_STATE_DISABLED) {
+ netif_carrier_off(bp->dev);
+ printk(KERN_ERR PFX "%s NIC Link is Down\n", bp->dev->name);
+ return;
+ }
+
if (bp->link_vars.link_up) {
if (bp->state == BNX2X_STATE_OPEN)
netif_carrier_on(bp->dev);
@@ -2239,6 +2245,46 @@ static void bnx2x_init_port_minmax(struct bnx2x *bp)
bp->cmng.fair_vars.fairness_timeout = fair_periodic_timeout_usec / 4;
}
+/* Calculates the sum of vn_min_rates.
+ It's needed for further normalizing of the min_rates.
+ Returns:
+ sum of vn_min_rates.
+ or
+ 0 - if all the min_rates are 0.
+ In the later case fainess algorithm should be deactivated.
+ If not all min_rates are zero then those that are zeroes will be set to 1.
+ */
+static void bnx2x_calc_vn_weight_sum(struct bnx2x *bp)
+{
+ int all_zero = 1;
+ int port = BP_PORT(bp);
+ int vn;
+
+ bp->vn_weight_sum = 0;
+ for (vn = VN_0; vn < E1HVN_MAX; vn++) {
+ int func = 2*vn + port;
+ u32 vn_cfg = SHMEM_RD(bp, mf_cfg.func_mf_config[func].config);
+ u32 vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
+ FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
+
+ /* Skip hidden vns */
+ if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE)
+ continue;
+
+ /* If min rate is zero - set it to 1 */
+ if (!vn_min_rate)
+ vn_min_rate = DEF_MIN_RATE;
+ else
+ all_zero = 0;
+
+ bp->vn_weight_sum += vn_min_rate;
+ }
+
+ /* ... only if all min rates are zeros - disable fairness */
+ if (all_zero)
+ bp->vn_weight_sum = 0;
+}
+
static void bnx2x_init_vn_minmax(struct bnx2x *bp, int func)
{
struct rate_shaping_vars_per_vn m_rs_vn;
@@ -2382,6 +2428,8 @@ static void bnx2x_link_attn(struct bnx2x *bp)
static void bnx2x__link_status_update(struct bnx2x *bp)
{
+ int func = BP_FUNC(bp);
+
if (bp->state != BNX2X_STATE_OPEN)
return;
@@ -2392,6 +2440,9 @@ static void bnx2x__link_status_update(struct bnx2x *bp)
else
bnx2x_stats_handle(bp, STATS_EVENT_STOP);
+ bp->mf_config = SHMEM_RD(bp, mf_cfg.func_mf_config[func].config);
+ bnx2x_calc_vn_weight_sum(bp);
+
/* indicate link status */
bnx2x_link_report(bp);
}
@@ -2420,6 +2471,152 @@ static void bnx2x_pmf_update(struct bnx2x *bp)
* General service functions
*/
+/* send the MCP a request, block until there is a reply */
+u32 bnx2x_fw_command(struct bnx2x *bp, u32 command)
+{
+ int func = BP_FUNC(bp);
+ u32 seq = ++bp->fw_seq;
+ u32 rc = 0;
+ u32 cnt = 1;
+ u8 delay = CHIP_REV_IS_SLOW(bp) ? 100 : 10;
+
+ SHMEM_WR(bp, func_mb[func].drv_mb_header, (command | seq));
+ DP(BNX2X_MSG_MCP, "wrote command (%x) to FW MB\n", (command | seq));
+
+ do {
+ /* let the FW do it's magic ... */
+ msleep(delay);
+
+ rc = SHMEM_RD(bp, func_mb[func].fw_mb_header);
+
+ /* Give the FW up to 2 second (200*10ms) */
+ } while ((seq != (rc & FW_MSG_SEQ_NUMBER_MASK)) && (cnt++ < 200));
+
+ DP(BNX2X_MSG_MCP, "[after %d ms] read (%x) seq is (%x) from FW MB\n",
+ cnt*delay, rc, seq);
+
+ /* is this a reply to our command? */
+ if (seq == (rc & FW_MSG_SEQ_NUMBER_MASK))
+ rc &= FW_MSG_CODE_MASK;
+ else {
+ /* FW BUG! */
+ BNX2X_ERR("FW failed to respond!\n");
+ bnx2x_fw_dump(bp);
+ rc = 0;
+ }
+
+ return rc;
+}
+
+static void bnx2x_set_storm_rx_mode(struct bnx2x *bp);
+static void bnx2x_set_mac_addr_e1h(struct bnx2x *bp, int set);
+static void bnx2x_set_rx_mode(struct net_device *dev);
+
+static void bnx2x_e1h_disable(struct bnx2x *bp)
+{
+ int port = BP_PORT(bp);
+ int i;
+
+ bp->rx_mode = BNX2X_RX_MODE_NONE;
+ bnx2x_set_storm_rx_mode(bp);
+
+ netif_tx_disable(bp->dev);
+ bp->dev->trans_start = jiffies; /* prevent tx timeout */
+
+ REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
+
+ bnx2x_set_mac_addr_e1h(bp, 0);
+
+ for (i = 0; i < MC_HASH_SIZE; i++)
+ REG_WR(bp, MC_HASH_OFFSET(bp, i), 0);
+
+ netif_carrier_off(bp->dev);
+}
+
+static void bnx2x_e1h_enable(struct bnx2x *bp)
+{
+ int port = BP_PORT(bp);
+
+ REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
+
+ bnx2x_set_mac_addr_e1h(bp, 1);
+
+ /* Tx queue should be only reenabled */
+ netif_tx_wake_all_queues(bp->dev);
+
+ /* Initialize the receive filter. */
+ bnx2x_set_rx_mode(bp->dev);
+}
+
+static void bnx2x_update_min_max(struct bnx2x *bp)
+{
+ int port = BP_PORT(bp);
+ int vn, i;
+
+ /* Init rate shaping and fairness contexts */
+ bnx2x_init_port_minmax(bp);
+
+ bnx2x_calc_vn_weight_sum(bp);
+
+ for (vn = VN_0; vn < E1HVN_MAX; vn++)
+ bnx2x_init_vn_minmax(bp, 2*vn + port);
+
+ if (bp->port.pmf) {
+ int func;
+
+ /* Set the attention towards other drivers on the same port */
+ for (vn = VN_0; vn < E1HVN_MAX; vn++) {
+ if (vn == BP_E1HVN(bp))
+ continue;
+
+ func = ((vn << 1) | port);
+ REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 +
+ (LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1);
+ }
+
+ /* Store it to internal memory */
+ for (i = 0; i < sizeof(struct cmng_struct_per_port) / 4; i++)
+ REG_WR(bp, BAR_XSTRORM_INTMEM +
+ XSTORM_CMNG_PER_PORT_VARS_OFFSET(port) + i*4,
+ ((u32 *)(&bp->cmng))[i]);
+ }
+}
+
+static void bnx2x_dcc_event(struct bnx2x *bp, u32 dcc_event)
+{
+ int func = BP_FUNC(bp);
+
+ DP(BNX2X_MSG_MCP, "dcc_event 0x%x\n", dcc_event);
+ bp->mf_config = SHMEM_RD(bp, mf_cfg.func_mf_config[func].config);
+
+ if (dcc_event & DRV_STATUS_DCC_DISABLE_ENABLE_PF) {
+
+ if (bp->mf_config & FUNC_MF_CFG_FUNC_DISABLED) {
+ DP(NETIF_MSG_IFDOWN, "mf_cfg function disabled\n");
+ bp->state = BNX2X_STATE_DISABLED;
+
+ bnx2x_e1h_disable(bp);
+ } else {
+ DP(NETIF_MSG_IFUP, "mf_cfg function enabled\n");
+ bp->state = BNX2X_STATE_OPEN;
+
+ bnx2x_e1h_enable(bp);
+ }
+ dcc_event &= ~DRV_STATUS_DCC_DISABLE_ENABLE_PF;
+ }
+ if (dcc_event & DRV_STATUS_DCC_BANDWIDTH_ALLOCATION) {
+
+ bnx2x_update_min_max(bp);
+ dcc_event &= ~DRV_STATUS_DCC_BANDWIDTH_ALLOCATION;
+ }
+
+ /* Report results to MCP */
+ if (dcc_event)
+ bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_FAILURE);
+ else
+ bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_OK);
+}
+
/* the slow path queue is odd since completions arrive on the fastpath ring */
static int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
u32 data_hi, u32 data_lo, int common)
@@ -2805,9 +3002,12 @@ static inline void bnx2x_attn_int_deasserted3(struct bnx2x *bp, u32 attn)
int func = BP_FUNC(bp);
REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
+ val = SHMEM_RD(bp, func_mb[func].drv_status);
+ if (val & DRV_STATUS_DCC_EVENT_MASK)
+ bnx2x_dcc_event(bp,
+ (val & DRV_STATUS_DCC_EVENT_MASK));
bnx2x__link_status_update(bp);
- if (SHMEM_RD(bp, func_mb[func].drv_status) &
- DRV_STATUS_PMF)
+ if ((bp->port.pmf == 0) && (val & DRV_STATUS_PMF))
bnx2x_pmf_update(bp);
} else if (attn & BNX2X_MC_ASSERT_BITS) {
@@ -4967,47 +5167,6 @@ static void bnx2x_init_internal_port(struct bnx2x *bp)
REG_WR(bp, BAR_XSTRORM_INTMEM + XSTORM_HC_BTR_OFFSET(port), BNX2X_BTR);
}
-/* Calculates the sum of vn_min_rates.
- It's needed for further normalizing of the min_rates.
- Returns:
- sum of vn_min_rates.
- or
- 0 - if all the min_rates are 0.
- In the later case fainess algorithm should be deactivated.
- If not all min_rates are zero then those that are zeroes will be set to 1.
- */
-static void bnx2x_calc_vn_weight_sum(struct bnx2x *bp)
-{
- int all_zero = 1;
- int port = BP_PORT(bp);
- int vn;
-
- bp->vn_weight_sum = 0;
- for (vn = VN_0; vn < E1HVN_MAX; vn++) {
- int func = 2*vn + port;
- u32 vn_cfg =
- SHMEM_RD(bp, mf_cfg.func_mf_config[func].config);
- u32 vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
- FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
-
- /* Skip hidden vns */
- if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE)
- continue;
-
- /* If min rate is zero - set it to 1 */
- if (!vn_min_rate)
- vn_min_rate = DEF_MIN_RATE;
- else
- all_zero = 0;
-
- bp->vn_weight_sum += vn_min_rate;
- }
-
- /* ... only if all min rates are zeros - disable fairness */
- if (all_zero)
- bp->vn_weight_sum = 0;
-}
-
static void bnx2x_init_internal_func(struct bnx2x *bp)
{
struct tstorm_eth_function_common_config tstorm_config = {0};
@@ -6271,44 +6430,6 @@ init_hw_err:
return rc;
}
-/* send the MCP a request, block until there is a reply */
-u32 bnx2x_fw_command(struct bnx2x *bp, u32 command)
-{
- int func = BP_FUNC(bp);
- u32 seq = ++bp->fw_seq;
- u32 rc = 0;
- u32 cnt = 1;
- u8 delay = CHIP_REV_IS_SLOW(bp) ? 100 : 10;
-
- SHMEM_WR(bp, func_mb[func].drv_mb_header, (command | seq));
- DP(BNX2X_MSG_MCP, "wrote command (%x) to FW MB\n", (command | seq));
-
- do {
- /* let the FW do it's magic ... */
- msleep(delay);
-
- rc = SHMEM_RD(bp, func_mb[func].fw_mb_header);
-
- /* Give the FW up to 2 second (200*10ms) */
- } while ((seq != (rc & FW_MSG_SEQ_NUMBER_MASK)) && (cnt++ < 200));
-
- DP(BNX2X_MSG_MCP, "[after %d ms] read (%x) seq is (%x) from FW MB\n",
- cnt*delay, rc, seq);
-
- /* is this a reply to our command? */
- if (seq == (rc & FW_MSG_SEQ_NUMBER_MASK)) {
- rc &= FW_MSG_CODE_MASK;
-
- } else {
- /* FW BUG! */
- BNX2X_ERR("FW failed to respond!\n");
- bnx2x_fw_dump(bp);
- rc = 0;
- }
-
- return rc;
-}
-
static void bnx2x_free_mem(struct bnx2x *bp)
{
@@ -6995,7 +7116,6 @@ static int bnx2x_set_int_mode(struct bnx2x *bp)
return rc;
}
-static void bnx2x_set_rx_mode(struct net_device *dev);
/* must be called with rtnl_lock */
static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
@@ -7102,6 +7222,12 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
/* Setup NIC internals and enable interrupts */
bnx2x_nic_init(bp, load_code);
+ if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) &&
+ (bp->common.shmem2_base))
+ SHMEM2_WR(bp, dcc_support,
+ (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV |
+ SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV));
+
/* Send LOAD_DONE command to MCP */
if (!BP_NOMCP(bp)) {
load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE);
@@ -7734,8 +7860,10 @@ static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp)
bp->common.flash_size, bp->common.flash_size);
bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
+ bp->common.shmem2_base = REG_RD(bp, MISC_REG_GENERIC_CR_0);
bp->link_params.shmem_base = bp->common.shmem_base;
- BNX2X_DEV_INFO("shmem offset is 0x%x\n", bp->common.shmem_base);
+ BNX2X_DEV_INFO("shmem offset 0x%x shmem2 offset 0x%x\n",
+ bp->common.shmem_base, bp->common.shmem2_base);
if (!bp->common.shmem_base ||
(bp->common.shmem_base < 0xA0000) ||
@@ -8289,22 +8417,33 @@ static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
bp->mf_config =
SHMEM_RD(bp, mf_cfg.func_mf_config[func].config);
- val = (SHMEM_RD(bp, mf_cfg.func_mf_config[func].e1hov_tag) &
+ val = (SHMEM_RD(bp, mf_cfg.func_mf_config[FUNC_0].e1hov_tag) &
FUNC_MF_CFG_E1HOV_TAG_MASK);
- if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
-
- bp->e1hov = val;
+ if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT)
bp->e1hmf = 1;
- BNX2X_DEV_INFO("MF mode E1HOV for func %d is %d "
- "(0x%04x)\n",
- func, bp->e1hov, bp->e1hov);
- } else {
- BNX2X_DEV_INFO("single function mode\n");
- if (BP_E1HVN(bp)) {
+ BNX2X_DEV_INFO("%s function mode\n",
+ IS_E1HMF(bp) ? "multi" : "single");
+
+ if (IS_E1HMF(bp)) {
+ val = (SHMEM_RD(bp, mf_cfg.func_mf_config[func].
+ e1hov_tag) &
+ FUNC_MF_CFG_E1HOV_TAG_MASK);
+ if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
+ bp->e1hov = val;
+ BNX2X_DEV_INFO("E1HOV for func %d is %d "
+ "(0x%04x)\n",
+ func, bp->e1hov, bp->e1hov);
+ } else {
BNX2X_ERR("!!! No valid E1HOV for func %d,"
" aborting\n", func);
rc = -EPERM;
}
+ } else {
+ if (BP_E1HVN(bp)) {
+ BNX2X_ERR("!!! VN %d in single function mode,"
+ " aborting\n", BP_E1HVN(bp));
+ rc = -EPERM;
+ }
}
}
--
1.5.4.3
--
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