[dpdk-dev] [RFC 3/4] enic: remove unused code

John Daley (johndale) johndale at cisco.com
Tue Oct 10 19:31:43 CEST 2017



> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Aaron Conole
> Sent: Tuesday, September 26, 2017 11:53 AM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [RFC 3/4] enic: remove unused code
> 
> The functions here aren't called anywhere in code, at least according to both
> the compiler, and some greps.
> 
> Signed-off-by: Aaron Conole <aconole at redhat.com>
> ---
>  drivers/net/enic/base/vnic_cq.c  |  10 ----  drivers/net/enic/base/vnic_dev.c
> | 102 ---------------------------------------
>  drivers/net/enic/base/vnic_rq.c  |   5 --
>  drivers/net/enic/base/vnic_rss.c |  32 ------------
>  drivers/net/enic/base/vnic_wq.c  |   5 --
>  drivers/net/enic/enic.h          |   5 --
>  drivers/net/enic/enic_compat.h   |  20 --------
>  7 files changed, 179 deletions(-)
> 
> diff --git a/drivers/net/enic/base/vnic_cq.c
> b/drivers/net/enic/base/vnic_cq.c index 33db10f..3549fec 100644
> --- a/drivers/net/enic/base/vnic_cq.c
> +++ b/drivers/net/enic/base/vnic_cq.c
> @@ -35,16 +35,6 @@
>  #include "vnic_dev.h"
>  #include "vnic_cq.h"
> 
> -int vnic_cq_mem_size(struct vnic_cq *cq, unsigned int desc_count,
> -	unsigned int desc_size)
> -{
> -	int mem_size;
> -
> -	mem_size = vnic_dev_desc_ring_size(&cq->ring, desc_count,
> desc_size);
> -
> -	return mem_size;
> -}
> -
>  void vnic_cq_free(struct vnic_cq *cq)
>  {
>  	vnic_dev_free_desc_ring(cq->vdev, &cq->ring); diff --git
> a/drivers/net/enic/base/vnic_dev.c b/drivers/net/enic/base/vnic_dev.c
> index 808f95b..a4b7f4b 100644
> --- a/drivers/net/enic/base/vnic_dev.c
> +++ b/drivers/net/enic/base/vnic_dev.c
> @@ -443,24 +443,6 @@ static int vnic_dev_cmd_no_proxy(struct vnic_dev
> *vdev,
>  	return err;
>  }
> 
> -void vnic_dev_cmd_proxy_by_index_start(struct vnic_dev *vdev, u16
> index) -{
> -	vdev->proxy = PROXY_BY_INDEX;
> -	vdev->proxy_index = index;
> -}
> -
> -void vnic_dev_cmd_proxy_by_bdf_start(struct vnic_dev *vdev, u16 bdf) -{
> -	vdev->proxy = PROXY_BY_BDF;
> -	vdev->proxy_index = bdf;
> -}
> -
> -void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev) -{
> -	vdev->proxy = PROXY_NONE;
> -	vdev->proxy_index = 0;
> -}
> -
>  int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
>  	u64 *a0, u64 *a1, int wait)
>  {
> @@ -672,15 +654,6 @@ int vnic_dev_close(struct vnic_dev *vdev)
>  	return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait);  }
> 
> -/** Deprecated.  @see vnic_dev_enable_wait */ -int
> vnic_dev_enable(struct vnic_dev *vdev) -{
> -	u64 a0 = 0, a1 = 0;
> -	int wait = 1000;
> -
> -	return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
> -}
> -
>  int vnic_dev_enable_wait(struct vnic_dev *vdev)  {
>  	u64 a0 = 0, a1 = 0;
> @@ -725,31 +698,6 @@ int vnic_dev_open_done(struct vnic_dev *vdev, int
> *done)
>  	return 0;
>  }
> 
> -int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg) -{
> -	u64 a0 = (u32)arg, a1 = 0;
> -	int wait = 1000;
> -
> -	return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait);
> -}
> -
> -int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done) -{
> -	u64 a0 = 0, a1 = 0;
> -	int wait = 1000;
> -	int err;
> -
> -	*done = 0;
> -
> -	err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1,
> wait);
> -	if (err)
> -		return err;
> -
> -	*done = (a0 == 0);
> -
> -	return 0;
> -}
> -
>  int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)  {
>  	u64 a0 = 0, a1 = 0;
> @@ -840,19 +788,6 @@ int vnic_dev_set_ig_vlan_rewrite_mode(struct
> vnic_dev *vdev,
>  		return 0;
>  }
> 
> -int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr) -{
> -	u64 a0 = intr, a1 = 0;
> -	int wait = 1000;
> -	int err;
> -
> -	err = vnic_dev_cmd(vdev, CMD_IAR, &a0, &a1, wait);
> -	if (err)
> -		pr_err("Failed to raise INTR[%d], err %d\n", intr, err);
> -
> -	return err;
> -}
> -
>  void vnic_dev_set_reset_flag(struct vnic_dev *vdev, int state)  {
>  	vdev->in_reset = state;
> @@ -985,14 +920,6 @@ int vnic_dev_init(struct vnic_dev *vdev, int arg)
>  	return r;
>  }
> 
> -int vnic_dev_deinit(struct vnic_dev *vdev) -{
> -	u64 a0 = 0, a1 = 0;
> -	int wait = 1000;
> -
> -	return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait);
> -}
> -
>  void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev)  {
>  	/* Default: hardware intr coal timer is in units of 1.5 usecs */ @@ -
> 1018,18 +945,6 @@ u32 vnic_dev_port_speed(struct vnic_dev *vdev)
>  	return vdev->notify_copy.port_speed;
>  }
> 
> -void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
> -	enum vnic_dev_intr_mode intr_mode)
> -{
> -	vdev->intr_mode = intr_mode;
> -}
> -
> -enum vnic_dev_intr_mode vnic_dev_get_intr_mode(
> -	struct vnic_dev *vdev)
> -{
> -	return vdev->intr_mode;
> -}
> -
>  u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32
> usec)  {
>  	return (usec * vdev->intr_coal_timer_info.mul) / @@ -1094,23
> +1009,6 @@ struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
>  	return NULL;
>  }
> 
> -struct rte_pci_device *vnic_dev_get_pdev(struct vnic_dev *vdev) -{
> -	return vdev->pdev;
> -}
> -
> -int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) -{
> -	u64 a0, a1 = 0;
> -	int wait = 1000;
> -	int i;
> -
> -	for (i = 0; i < ETH_ALEN; i++)
> -		((u8 *)&a0)[i] = mac_addr[i];
> -
> -	return vnic_dev_cmd(vdev, CMD_SET_MAC_ADDR, &a0, &a1, wait);
> -}
> -
>  /*
>   *  vnic_dev_classifier: Add/Delete classifier entries
>   *  @vdev: vdev of the device
> diff --git a/drivers/net/enic/base/vnic_rq.c
> b/drivers/net/enic/base/vnic_rq.c index 776a6f7..ea297ee 100644
> --- a/drivers/net/enic/base/vnic_rq.c
> +++ b/drivers/net/enic/base/vnic_rq.c
> @@ -118,11 +118,6 @@ void vnic_rq_init(struct vnic_rq *rq, unsigned int
> cq_index,
>  	rq->pkt_last_seg = NULL;
>  }
> 
> -void vnic_rq_error_out(struct vnic_rq *rq, unsigned int error) -{
> -	iowrite32(error, &rq->ctrl->error_status);
> -}
> -
>  unsigned int vnic_rq_error_status(struct vnic_rq *rq)  {
>  	return ioread32(&rq->ctrl->error_status);
> diff --git a/drivers/net/enic/base/vnic_rss.c
> b/drivers/net/enic/base/vnic_rss.c
> index 1cf055b..87d40c0 100644
> --- a/drivers/net/enic/base/vnic_rss.c
> +++ b/drivers/net/enic/base/vnic_rss.c
> @@ -50,35 +50,3 @@ void vnic_set_rss_key(union vnic_rss_key *rss_key,
> u8 *key)
>  	}
>  }
> 
> -void vnic_set_rss_cpu(union vnic_rss_cpu *rss_cpu, u8 *cpu) -{
> -	u32 i;
> -	u32 *p = (u32 *)cpu;
> -
> -	for (i = 0; i < 32; ++i)
> -		iowrite32(*p++, &rss_cpu->cpu[i].b[0]);
> -}
> -
> -void vnic_get_rss_key(union vnic_rss_key *rss_key, u8 *key) -{
> -	u32 i;
> -	u32 *p;
> -	u16 *q;
> -
> -	for (i = 0; i < 4; ++i) {
> -		p = (u32 *)(key + (10 * i));
> -		*p++ = ioread32(&rss_key->key[i].b[0]);
> -		*p++ = ioread32(&rss_key->key[i].b[4]);
> -		q = (u16 *)p;
> -		*q = (u16)ioread32(&rss_key->key[i].b[8]);
> -	}
> -}
> -
> -void vnic_get_rss_cpu(union vnic_rss_cpu *rss_cpu, u8 *cpu) -{
> -	u32 i;
> -	u32 *p = (u32 *)cpu;
> -
> -	for (i = 0; i < 32; ++i)
> -		*p++ = ioread32(&rss_cpu->cpu[i].b[0]);
> -}
> diff --git a/drivers/net/enic/base/vnic_wq.c
> b/drivers/net/enic/base/vnic_wq.c index 273e3db..0a1247f 100644
> --- a/drivers/net/enic/base/vnic_wq.c
> +++ b/drivers/net/enic/base/vnic_wq.c
> @@ -145,11 +145,6 @@ void vnic_wq_init(struct vnic_wq *wq, unsigned int
> cq_index,
>  	wq->last_completed_index = 0;
>  }
> 
> -void vnic_wq_error_out(struct vnic_wq *wq, unsigned int error) -{
> -	iowrite32(error, &wq->ctrl->error_status);
> -}
> -
>  unsigned int vnic_wq_error_status(struct vnic_wq *wq)  {
>  	return ioread32(&wq->ctrl->error_status);
> diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h index
> e28f223..9dc86df 100644
> --- a/drivers/net/enic/enic.h
> +++ b/drivers/net/enic/enic.h
> @@ -227,11 +227,6 @@ static inline unsigned int enic_cq_wq(struct enic
> *enic, unsigned int wq)
>  	return enic->rq_count + wq;
>  }
> 
> -static inline unsigned int enic_msix_err_intr(__rte_unused struct enic *enic)
> -{
> -	return 0;
> -}
> -
>  static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)  {
>  	return (struct enic *)eth_dev->data->dev_private; diff --git
> a/drivers/net/enic/enic_compat.h b/drivers/net/enic/enic_compat.h index
> fc58bb4..1cb5686 100644
> --- a/drivers/net/enic/enic_compat.h
> +++ b/drivers/net/enic/enic_compat.h
> @@ -99,11 +99,6 @@ static inline uint32_t ioread32(volatile void *addr)
>  	return rte_read32(addr);
>  }
> 
> -static inline uint16_t ioread16(volatile void *addr) -{
> -	return rte_read16(addr);
> -}
> -
>  static inline uint8_t ioread8(volatile void *addr)  {
>  	return rte_read8(addr);
> @@ -119,26 +114,11 @@ static inline void iowrite32_relaxed(uint32_t val,
> volatile void *addr)
>  	rte_write32_relaxed(val, addr);
>  }
> 
> -static inline void iowrite16(uint16_t val, volatile void *addr) -{
> -	rte_write16(val, addr);
> -}
> -
> -static inline void iowrite8(uint8_t val, volatile void *addr) -{
> -	rte_write8(val, addr);
> -}
> -
>  static inline unsigned int readl(volatile void __iomem *addr)  {
>  	return rte_read32(addr);
>  }
> 
> -static inline unsigned int readl_relaxed(volatile void __iomem *addr) -{
> -	return rte_read32_relaxed(addr);
> -}
> -
>  static inline void writel(unsigned int val, volatile void __iomem *addr)  {
>  	rte_write32(val, addr);
> --
> 2.9.5

The files in enic/base were initially common with other Cisco VIC drivers, but have since diverged and are maintained separately for DPDK, so I don't have any problem with removing unused functions at this point. 

Reviewed-by: John Daley <johndale at cisco.com>

Thanks!
Johnd



More information about the dev mailing list