From: Jitendra Kalsaria Date: Sat, 9 Feb 2013 09:29:50 +0000 (+0000) Subject: qlcnic: helper routine to handle async events X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=483202d590cd76fc794f3aa11a342b718a804a28;p=deliverable%2Flinux.git qlcnic: helper routine to handle async events Create a helper routine to handle async events, as it is being called from multiple places Signed-off-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index d23372e2a4a3..3d628c638247 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -12,13 +12,6 @@ #include #define QLCNIC_MAX_TX_QUEUES 1 - -#define QLCNIC_MBX_RSP(reg) LSW(reg) -#define QLCNIC_MBX_NUM_REGS(reg) (MSW(reg) & 0x1FF) -#define QLCNIC_MBX_STATUS(reg) (((reg) >> 25) & 0x7F) -#define QLCNIC_MBX_HOST(ahw, i) ((ahw)->pci_base0 + ((i) * 4)) -#define QLCNIC_MBX_FW(ahw, i) ((ahw)->pci_base0 + 0x800 + ((i) * 4)) - #define RSS_HASHTYPE_IP_TCP 0x3 /* status descriptor mailbox data @@ -696,7 +689,7 @@ int qlcnic_83xx_mbx_op(struct qlcnic_adapter *adapter, int i; u16 opcode; u8 mbx_err_code, mac_cmd_rcode; - u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd, temp, fw[8]; + u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd; struct qlcnic_hardware_context *ahw = adapter->ahw; opcode = LSW(cmd->req.arg[0]); @@ -738,42 +731,8 @@ poll: opcode = QLCNIC_MBX_RSP(fw_data); if (rsp != QLCNIC_RCODE_TIMEOUT) { - if (opcode == QLCNIC_MBX_LINK_EVENT) { - for (i = 0; i < rsp_num; i++) { - temp = readl(QLCNIC_MBX_FW(ahw, i)); - fw[i] = temp; - } - qlcnic_83xx_handle_link_aen(adapter, fw); - /* clear fw mbx control register */ - QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER); - mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL); - if (mbx_val) - goto poll; - } else if (opcode == QLCNIC_MBX_COMP_EVENT) { - for (i = 0; i < rsp_num; i++) { - temp = readl(QLCNIC_MBX_FW(ahw, i)); - fw[i] = temp; - } - qlcnic_83xx_handle_idc_comp_aen(adapter, fw); - /* clear fw mbx control register */ - QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER); - mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL); - if (mbx_val) - goto poll; - } else if (opcode == QLCNIC_MBX_REQUEST_EVENT) { - /* IDC Request Notification */ - for (i = 0; i < rsp_num; i++) { - temp = readl(QLCNIC_MBX_FW(ahw, i)); - fw[i] = temp; - } - for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++) { - temp = QLCNIC_MBX_RSP(fw[i]); - adapter->ahw->mbox_aen[i] = temp; - } - queue_delayed_work(adapter->qlcnic_wq, - &adapter->idc_aen_work, 0); - /* clear fw mbx control register */ - QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER); + if (fw_data & QLCNIC_MBX_ASYNC_EVENT) { + qlcnic_83xx_process_aen(adapter); mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL); if (mbx_val) goto poll; @@ -875,20 +834,10 @@ static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter, void qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter) { - u32 mask, resp, event[QLC_83XX_MBX_AEN_CNT]; + u32 event[QLC_83XX_MBX_AEN_CNT]; int i; struct qlcnic_hardware_context *ahw = adapter->ahw; - if (!spin_trylock(&ahw->mbx_lock)) { - mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK); - writel(0, adapter->ahw->pci_base0 + mask); - return; - } - resp = QLCRDX(ahw, QLCNIC_FW_MBX_CTRL); - - if (!(resp & QLCNIC_SET_OWNER)) - goto out; - for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++) event[i] = readl(QLCNIC_MBX_FW(ahw, i)); @@ -923,10 +872,6 @@ void qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter) } QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER); -out: - mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK); - writel(0, adapter->ahw->pci_base0 + mask); - spin_unlock(&ahw->mbx_lock); } static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter) @@ -1620,7 +1565,21 @@ static void qlcnic_83xx_handle_link_aen(struct qlcnic_adapter *adapter, irqreturn_t qlcnic_83xx_handle_aen(int irq, void *data) { struct qlcnic_adapter *adapter = data; - qlcnic_83xx_process_aen(adapter); + unsigned long flags; + u32 mask, resp, event; + + spin_lock_irqsave(&adapter->ahw->mbx_lock, flags); + resp = QLCRDX(adapter->ahw, QLCNIC_FW_MBX_CTRL); + if (!(resp & QLCNIC_SET_OWNER)) + goto out; + event = readl(QLCNIC_MBX_FW(adapter->ahw, 0)); + if (event & QLCNIC_MBX_ASYNC_EVENT) + qlcnic_83xx_process_aen(adapter); +out: + mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK); + writel(0, adapter->ahw->pci_base0 + mask); + spin_unlock_irqrestore(&adapter->ahw->mbx_lock, flags); + return IRQ_HANDLED; } diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h index b62017bae368..16c5df626616 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h @@ -137,9 +137,6 @@ struct qlc_83xx_reset { #define QLC_83XX_IDC_MINOR_VERSION 0 #define QLC_83XX_IDC_FLASH_PARAM_ADDR 0x3e8020 -/* Mailbox process AEN count */ -#define QLC_83XX_MBX_AEN_CNT 5 - struct qlcnic_adapter; struct qlc_83xx_idc { int (*state_entry) (struct qlcnic_adapter *); @@ -156,6 +153,12 @@ struct qlc_83xx_idc { char **name; }; +#define QLCNIC_MBX_RSP(reg) LSW(reg) +#define QLCNIC_MBX_NUM_REGS(reg) (MSW(reg) & 0x1FF) +#define QLCNIC_MBX_STATUS(reg) (((reg) >> 25) & 0x7F) +#define QLCNIC_MBX_HOST(ahw, i) ((ahw)->pci_base0 + ((i) * 4)) +#define QLCNIC_MBX_FW(ahw, i) ((ahw)->pci_base0 + 0x800 + ((i) * 4)) + /* Mailbox process AEN count */ #define QLC_83XX_IDC_COMP_AEN 3 #define QLC_83XX_MBX_AEN_CNT 5 diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h index ed52b9cfa15d..5b8749eda11f 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h @@ -135,6 +135,7 @@ struct qlcnic_mailbox_metadata { #define QLCNIC_MBX_RSP_OK 1 #define QLCNIC_MBX_PORT_RSP_OK 0x1a +#define QLCNIC_MBX_ASYNC_EVENT BIT_15 struct qlcnic_pci_info; struct qlcnic_info; diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c index bb4311e9aea9..bc38eaf89a93 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c @@ -1553,6 +1553,24 @@ skip: return count; } +static void qlcnic_83xx_poll_process_aen(struct qlcnic_adapter *adapter) +{ + unsigned long flags; + u32 mask, resp, event; + + spin_lock_irqsave(&adapter->ahw->mbx_lock, flags); + resp = QLCRDX(adapter->ahw, QLCNIC_FW_MBX_CTRL); + if (!(resp & QLCNIC_SET_OWNER)) + goto out; + event = readl(QLCNIC_MBX_FW(adapter->ahw, 0)); + if (event & QLCNIC_MBX_ASYNC_EVENT) + qlcnic_83xx_process_aen(adapter); +out: + mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK); + writel(0, adapter->ahw->pci_base0 + mask); + spin_unlock_irqrestore(&adapter->ahw->mbx_lock, flags); +} + static int qlcnic_83xx_poll(struct napi_struct *napi, int budget) { int tx_complete; @@ -1567,7 +1585,7 @@ static int qlcnic_83xx_poll(struct napi_struct *napi, int budget) tx_ring = adapter->tx_ring; if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) - qlcnic_83xx_process_aen(adapter); + qlcnic_83xx_poll_process_aen(adapter); tx_complete = qlcnic_process_cmd_ring(adapter, tx_ring, budget); work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget);