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Date: Fri, 21 Aug 2015 17:29:35 +0900
From: Taku Izumi <izumi.taku@...fujitsu.com>
To: netdev@...r.kernel.org, davem@...emloft.net
Cc: platform-driver-x86@...r.kernel.org, dvhart@...radead.org,
rkhan@...hat.com, alexander.h.duyck@...hat.com,
linux-acpi@...r.kernel.org, joe@...ches.com,
sergei.shtylyov@...entembedded.com, stephen@...workplumber.org,
yasu.isimatu@...il.com, Taku Izumi <izumi.taku@...fujitsu.com>
Subject: [PATCH v3 19/22] fjes: update_zone_task
This patch adds update_zone_task.
Zoning information can be changed by user.
This task is used to monitor if zoning information is
changed or not.
Signed-off-by: Taku Izumi <izumi.taku@...fujitsu.com>
---
drivers/net/fjes/fjes_hw.c | 179 +++++++++++++++++++++++++++++++++++++++++++
drivers/net/fjes/fjes_hw.h | 1 +
drivers/net/fjes/fjes_main.c | 14 ++++
3 files changed, 194 insertions(+)
diff --git a/drivers/net/fjes/fjes_hw.c b/drivers/net/fjes/fjes_hw.c
index 4a4b750..4525d36 100644
--- a/drivers/net/fjes/fjes_hw.c
+++ b/drivers/net/fjes/fjes_hw.c
@@ -22,6 +22,8 @@
#include "fjes_hw.h"
#include "fjes.h"
+static void fjes_hw_update_zone_task(struct work_struct *);
+
/* supported MTU list */
const u32 fjes_support_mtu[] = {
FJES_MTU_DEFINE(8 * 1024),
@@ -322,6 +324,8 @@ int fjes_hw_init(struct fjes_hw *hw)
fjes_hw_set_irqmask(hw, REG_ICTL_MASK_ALL, true);
+ INIT_WORK(&hw->update_zone_task, fjes_hw_update_zone_task);
+
mutex_init(&hw->hw_info.lock);
hw->max_epid = fjes_hw_get_max_epid(hw);
@@ -349,6 +353,8 @@ void fjes_hw_exit(struct fjes_hw *hw)
}
fjes_hw_cleanup(hw);
+
+ cancel_work_sync(&hw->update_zone_task);
}
static enum fjes_dev_command_response_e
@@ -913,3 +919,176 @@ int fjes_hw_epbuf_tx_pkt_send(struct epbuf_handler *epbh,
return 0;
}
+
+static void fjes_hw_update_zone_task(struct work_struct *work)
+{
+ struct fjes_hw *hw = container_of(work,
+ struct fjes_hw, update_zone_task);
+
+ struct my_s {u8 es_status; u8 zone; } *info;
+ union fjes_device_command_res *res_buf;
+ enum ep_partner_status pstatus;
+
+ struct fjes_adapter *adapter;
+ struct net_device *netdev;
+
+ ulong unshare_bit = 0;
+ ulong share_bit = 0;
+ ulong irq_bit = 0;
+
+ int epidx;
+ int ret;
+
+ adapter = (struct fjes_adapter *)hw->back;
+ netdev = adapter->netdev;
+ res_buf = hw->hw_info.res_buf;
+ info = (struct my_s *)&res_buf->info.info;
+
+ mutex_lock(&hw->hw_info.lock);
+
+ ret = fjes_hw_request_info(hw);
+ switch (ret) {
+ case -ENOMSG:
+ case -EBUSY:
+ default:
+ if (!work_pending(&adapter->force_close_task)) {
+ adapter->force_reset = true;
+ schedule_work(&adapter->force_close_task);
+ }
+ break;
+
+ case 0:
+
+ for (epidx = 0; epidx < hw->max_epid; epidx++) {
+ if (epidx == hw->my_epid) {
+ hw->ep_shm_info[epidx].es_status =
+ info[epidx].es_status;
+ hw->ep_shm_info[epidx].zone =
+ info[epidx].zone;
+ continue;
+ }
+
+ pstatus = fjes_hw_get_partner_ep_status(hw, epidx);
+ switch (pstatus) {
+ case EP_PARTNER_UNSHARE:
+ default:
+ if ((info[epidx].zone !=
+ FJES_ZONING_ZONE_TYPE_NONE) &&
+ (info[epidx].es_status ==
+ FJES_ZONING_STATUS_ENABLE) &&
+ (info[epidx].zone ==
+ info[hw->my_epid].zone))
+ set_bit(epidx, &share_bit);
+ else
+ set_bit(epidx, &unshare_bit);
+ break;
+
+ case EP_PARTNER_COMPLETE:
+ case EP_PARTNER_WAITING:
+ if ((info[epidx].zone ==
+ FJES_ZONING_ZONE_TYPE_NONE) ||
+ (info[epidx].es_status !=
+ FJES_ZONING_STATUS_ENABLE) ||
+ (info[epidx].zone !=
+ info[hw->my_epid].zone)) {
+ set_bit(epidx,
+ &adapter->unshare_watch_bitmask);
+ set_bit(epidx,
+ &hw->hw_info.buffer_unshare_reserve_bit);
+ }
+ break;
+
+ case EP_PARTNER_SHARED:
+ if ((info[epidx].zone ==
+ FJES_ZONING_ZONE_TYPE_NONE) ||
+ (info[epidx].es_status !=
+ FJES_ZONING_STATUS_ENABLE) ||
+ (info[epidx].zone !=
+ info[hw->my_epid].zone))
+ set_bit(epidx, &irq_bit);
+ break;
+ }
+ }
+
+ hw->ep_shm_info[epidx].es_status = info[epidx].es_status;
+ hw->ep_shm_info[epidx].zone = info[epidx].zone;
+
+ break;
+ }
+
+ mutex_unlock(&hw->hw_info.lock);
+
+ for (epidx = 0; epidx < hw->max_epid; epidx++) {
+ if (epidx == hw->my_epid)
+ continue;
+
+ if (test_bit(epidx, &share_bit)) {
+ fjes_hw_setup_epbuf(&hw->ep_shm_info[epidx].tx,
+ netdev->dev_addr, netdev->mtu);
+
+ mutex_lock(&hw->hw_info.lock);
+
+ ret = fjes_hw_register_buff_addr(
+ hw, epidx, &hw->ep_shm_info[epidx]);
+
+ switch (ret) {
+ case 0:
+ break;
+ case -ENOMSG:
+ case -EBUSY:
+ default:
+ if (!work_pending(&adapter->force_close_task)) {
+ adapter->force_reset = true;
+ schedule_work(
+ &adapter->force_close_task);
+ }
+ break;
+ }
+ mutex_unlock(&hw->hw_info.lock);
+ }
+
+ if (test_bit(epidx, &unshare_bit)) {
+ mutex_lock(&hw->hw_info.lock);
+
+ ret = fjes_hw_unregister_buff_addr(hw, epidx);
+
+ switch (ret) {
+ case 0:
+ break;
+ case -ENOMSG:
+ case -EBUSY:
+ default:
+ if (!work_pending(&adapter->force_close_task)) {
+ adapter->force_reset = true;
+ schedule_work(
+ &adapter->force_close_task);
+ }
+ break;
+ }
+
+ mutex_unlock(&hw->hw_info.lock);
+
+ if (ret == 0)
+ fjes_hw_setup_epbuf(
+ &hw->ep_shm_info[epidx].tx,
+ netdev->dev_addr, netdev->mtu);
+ }
+
+ if (test_bit(epidx, &irq_bit)) {
+ fjes_hw_raise_interrupt(hw, epidx,
+ REG_ICTL_MASK_TXRX_STOP_REQ);
+
+ set_bit(epidx, &hw->txrx_stop_req_bit);
+ hw->ep_shm_info[epidx].tx.
+ info->v1i.rx_status |=
+ FJES_RX_STOP_REQ_REQUEST;
+ set_bit(epidx, &hw->hw_info.buffer_unshare_reserve_bit);
+ }
+ }
+
+ if (irq_bit || adapter->unshare_watch_bitmask) {
+ if (!work_pending(&adapter->unshare_watch_task))
+ queue_work(adapter->control_wq,
+ &adapter->unshare_watch_task);
+ }
+}
diff --git a/drivers/net/fjes/fjes_hw.h b/drivers/net/fjes/fjes_hw.h
index 95e632b..e59b737 100644
--- a/drivers/net/fjes/fjes_hw.h
+++ b/drivers/net/fjes/fjes_hw.h
@@ -282,6 +282,7 @@ struct fjes_hw {
unsigned long txrx_stop_req_bit;
unsigned long epstop_req_bit;
+ struct work_struct update_zone_task;
int my_epid;
int max_epid;
diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index c47ecf3..8e3a084 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -315,6 +315,8 @@ static int fjes_close(struct net_device *netdev)
cancel_work_sync(&adapter->raise_intr_rxdata_task);
cancel_work_sync(&adapter->tx_stall_task);
+ cancel_work_sync(&hw->update_zone_task);
+
fjes_hw_wait_epstop(hw);
fjes_free_resources(adapter);
@@ -817,6 +819,15 @@ static int fjes_vlan_rx_kill_vid(struct net_device *netdev,
return 0;
}
+static void fjes_update_zone_irq(struct fjes_adapter *adapter,
+ int src_epid)
+{
+ struct fjes_hw *hw = &adapter->hw;
+
+ if (!work_pending(&hw->update_zone_task))
+ queue_work(adapter->control_wq, &hw->update_zone_task);
+}
+
static irqreturn_t fjes_intr(int irq, void *data)
{
struct fjes_adapter *adapter = data;
@@ -830,6 +841,9 @@ static irqreturn_t fjes_intr(int irq, void *data)
if (icr & REG_ICTL_MASK_RX_DATA)
fjes_rx_irq(adapter, icr & REG_IS_MASK_EPID);
+ if (icr & REG_ICTL_MASK_INFO_UPDATE)
+ fjes_update_zone_irq(adapter, icr & REG_IS_MASK_EPID);
+
ret = IRQ_HANDLED;
} else {
ret = IRQ_NONE;
--
1.8.3.1
--
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