From: Taku Izumi <izumi.taku@jp.fujitsu.com>
To: platform-driver-x86@vger.kernel.org, dvhart@infradead.org
Cc: rkhan@redhat.com, alexander.h.duyck@redhat.com,
netdev@vger.kernel.org, linux-acpi@vger.kernel.org,
Taku Izumi <izumi.taku@jp.fujitsu.com>
Subject: [PATCH 03/22] fjes: Hardware cleanup routine
Date: Thu, 18 Jun 2015 09:49:28 +0900 [thread overview]
Message-ID: <1434588587-25655-3-git-send-email-izumi.taku@jp.fujitsu.com> (raw)
In-Reply-To: <1434588587-25655-1-git-send-email-izumi.taku@jp.fujitsu.com>
This patch adds hardware cleanup routine to be
invoked at driver's .remove routine.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
---
drivers/platform/x86/fjes/fjes_hw.c | 66 +++++++++++++++++++++++++++++++++++++
drivers/platform/x86/fjes/fjes_hw.h | 1 +
2 files changed, 67 insertions(+)
diff --git a/drivers/platform/x86/fjes/fjes_hw.c b/drivers/platform/x86/fjes/fjes_hw.c
index 1731827..d1f090a 100644
--- a/drivers/platform/x86/fjes/fjes_hw.c
+++ b/drivers/platform/x86/fjes/fjes_hw.c
@@ -56,6 +56,11 @@ static u8 *fjes_hw_iomap(struct fjes_hw *hw)
return base;
}
+static void fjes_hw_iounmap(struct fjes_hw *hw)
+{
+ iounmap(hw->base);
+ release_mem_region(hw->hw_res.start, hw->hw_res.size);
+}
int fjes_hw_reset(struct fjes_hw *hw)
{
@@ -113,6 +118,12 @@ static int fjes_hw_alloc_shared_status_region(struct fjes_hw *hw)
return 0;
}
+static void fjes_hw_free_shared_status_region(struct fjes_hw *hw)
+{
+ kfree(hw->hw_info.share);
+ hw->hw_info.share = NULL;
+}
+
static int fjes_hw_alloc_epbuf(struct epbuf_handler *epbh)
{
void *mem;
@@ -131,6 +142,18 @@ static int fjes_hw_alloc_epbuf(struct epbuf_handler *epbh)
return 0;
}
+static void fjes_hw_free_epbuf(struct epbuf_handler *epbh)
+{
+ if (epbh->buffer)
+ vfree(epbh->buffer);
+
+ epbh->buffer = NULL;
+ epbh->size = 0;
+
+ epbh->info = NULL;
+ epbh->ring = NULL;
+}
+
void fjes_hw_setup_epbuf(struct epbuf_handler *epbh, u8 *mac_addr, u32 mtu)
{
@@ -267,6 +290,33 @@ static int fjes_hw_setup(struct fjes_hw *hw)
return 0;
}
+static void fjes_hw_cleanup(struct fjes_hw *hw)
+{
+ int epidx;
+
+ if (!hw->ep_shm_info)
+ return;
+
+ fjes_hw_free_shared_status_region(hw);
+
+ kfree(hw->hw_info.req_buf);
+ hw->hw_info.req_buf = NULL;
+
+ kfree(hw->hw_info.res_buf);
+ hw->hw_info.res_buf = NULL;
+
+ for (epidx = 0; epidx < hw->max_epid ; epidx++) {
+ if (epidx == hw->my_epid)
+ continue;
+ fjes_hw_free_epbuf(&hw->ep_shm_info[epidx].tx);
+ fjes_hw_free_epbuf(&hw->ep_shm_info[epidx].rx);
+ }
+
+ kfree(hw->ep_shm_info);
+ hw->ep_shm_info = NULL;
+
+}
+
int fjes_hw_init(struct fjes_hw *hw)
{
int ret;
@@ -294,6 +344,22 @@ int fjes_hw_init(struct fjes_hw *hw)
return ret;
}
+void fjes_hw_exit(struct fjes_hw *hw)
+{
+ int ret;
+
+ if (hw->base) {
+ ret = fjes_hw_reset(hw);
+ if (ret)
+ pr_err("%s: reset error", __func__);
+
+ fjes_hw_iounmap(hw);
+ hw->base = NULL;
+ }
+
+ fjes_hw_cleanup(hw);
+}
+
void fjes_hw_set_irqmask(struct fjes_hw *hw, enum REG_ICTL_MASK intr_mask,
bool mask)
{
diff --git a/drivers/platform/x86/fjes/fjes_hw.h b/drivers/platform/x86/fjes/fjes_hw.h
index 02f4ee9..0bb2d51 100644
--- a/drivers/platform/x86/fjes/fjes_hw.h
+++ b/drivers/platform/x86/fjes/fjes_hw.h
@@ -244,6 +244,7 @@ struct fjes_hw {
int fjes_hw_init(struct fjes_hw *);
+void fjes_hw_exit(struct fjes_hw *);
int fjes_hw_reset(struct fjes_hw *);
void fjes_hw_init_command_registers(struct fjes_hw *,
--
1.8.3.1
next prev parent reply other threads:[~2015-06-18 0:49 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 0:45 [PATCH 00/22] FUJITSU Extended Socket network device driver Taku Izumi
2015-06-18 0:49 ` [PATCH 01/22] fjes: Introduce FUJITSU Extended Socket Network Device driver Taku Izumi
2015-06-18 0:49 ` [PATCH 02/22] fjes: Hardware initialization routine Taku Izumi
2015-06-18 1:57 ` Joe Perches
2015-06-19 19:37 ` Yasuaki Ishimatsu
2015-06-18 0:49 ` Taku Izumi [this message]
2015-06-18 0:49 ` [PATCH 04/22] fjes: platform_driver's .probe and .remove routine Taku Izumi
2015-06-18 0:49 ` [PATCH 05/22] fjes: ES information acquisition routine Taku Izumi
2015-06-18 0:49 ` [PATCH 06/22] fjes: buffer address regist/unregistration routine Taku Izumi
2015-06-18 0:49 ` [PATCH 07/22] fjes: net_device_ops.ndo_open and .ndo_stop Taku Izumi
2015-06-18 0:49 ` [PATCH 08/22] fjes: net_device_ops.ndo_start_xmit Taku Izumi
2015-06-18 0:49 ` [PATCH 09/22] fjes: raise_intr_rxdata_task Taku Izumi
2015-06-18 0:49 ` [PATCH 10/22] fjes: tx_stall_task Taku Izumi
2015-06-18 0:49 ` [PATCH 11/22] fjes: NAPI polling function Taku Izumi
2015-06-18 0:49 ` [PATCH 12/22] fjes: net_device_ops.ndo_get_stats64 Taku Izumi
2015-06-18 14:00 ` Sergei Shtylyov
2015-06-18 0:49 ` [PATCH 13/22] fjes: net_device_ops.ndo_change_mtu Taku Izumi
2015-06-18 0:49 ` [PATCH 14/22] fjes: net_device_ops.ndo_tx_timeout Taku Izumi
2015-06-18 13:58 ` Sergei Shtylyov
2015-06-18 0:49 ` [PATCH 15/22] fjes: net_device_ops.ndo_vlan_rx_add/kill_vid Taku Izumi
2015-06-18 0:49 ` [PATCH 16/22] fjes: interrupt_watch_task Taku Izumi
2015-06-18 0:49 ` [PATCH 17/22] fjes: force_close_task Taku Izumi
2015-06-18 0:49 ` [PATCH 18/22] fjes: unshare_watch_task Taku Izumi
2015-06-18 0:49 ` [PATCH 19/22] fjes: update_zone_task Taku Izumi
2015-06-18 2:25 ` Joe Perches
2015-06-18 0:49 ` [PATCH 20/22] fjes: epstop_task Taku Izumi
2015-06-18 13:55 ` Sergei Shtylyov
2015-06-18 0:49 ` [PATCH 21/22] fjes: handle receive cancellation request interrupt Taku Izumi
2015-06-18 0:49 ` [PATCH 22/22] fjes: ethtool support Taku Izumi
2015-06-18 1:10 ` Stephen Hemminger
2015-06-18 1:47 ` [PATCH 01/22] fjes: Introduce FUJITSU Extended Socket Network Device driver Joe Perches
2015-06-18 21:22 ` [PATCH 00/22] FUJITSU Extended Socket network device driver Darren Hart
2015-06-19 4:20 ` Izumi, Taku
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